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You searched for: Subject term peroxidase Remove constraint Subject term: peroxidase Subject term catalase Remove constraint Subject term: catalase Subject term enzyme activity Remove constraint Subject term: enzyme activity
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1. Lycopodium Fairy Rings: Effect on Soil Respiration and Enzymatic Activities

Author:
Brian Spalding; J. M. Duxbury; E. L. Stone
Source:
Soil Science Society of America journal 1975 v.39 no.1 pp. 65-70
ISSN:
0361-5995
Subject:
Lycopodium; amylases; beta-fructofuranosidase; catalase; catechol oxidase; endo-1,4-beta-glucanase; endophytes; enzyme activity; fungi; nutrient availability; peroxidase; polygalacturonase; polyphenols; proteinases; soil; soil organic matter; soil respiration
Abstract:
... Lycopodium species (L. tristachyum, L. clavatum, and L. complanatum) sometimes occur as fairy rings—dense annuli of plants, 1 to 1.5 m wide, that grow radially outward at a rate of 20 to 50 cm/year and die within. The impact of these fairy rings on soil organic matter was investigated through studies of soil respiration and selected enzymatic activities. Respiration was enhanced in the soil under ...
DOI:
10.2136/sssaj1975.03615995003900010020x

2. Comportement des fractions peroxydasique et catalasique solubles au cours d'interactions entre le piment el le virus de la mosaique du tabac ou le Phytophthora capsici

Author:
Lizzi, Y.; Coulomb, P.J.
Source:
Canadian journal of botany 1991 v.69 no.8 pp. 1853-1864
ISSN:
0008-4026
Subject:
Capsicum annuum; Phytophthora capsici; plant pathogenic fungi; Tobacco mosaic virus; leaves; peroxidase; catalase; enzyme activity; disease resistance; cultivars; genetic variation; pathogenesis
DOI:
10.1139/b91-235

3. Involvement of molecular oxygen in the enzyme-catalyzed NADH oxidation and ferric leghemoglobin reduction

Author:
Ji, L.; Becana, M.; Klucas, R.V.
Source:
Plant physiology 1992 v.100 no.1 pp. 33-39
ISSN:
0032-0889
Subject:
peroxidase; NAD (coenzyme); Glycine max; catalase; hydrogen peroxide; root nodules; oxidation; leghemoglobin; enzyme activity; oxygen
Abstract:
... Ferric leghemoglobin reductase (FLbR) from soybean (Glycine max [L.] Merr) nodules catalyzed oxidation of NADH, reduction of ferric leghemoglobin (Lb2+) and reduction of dichloroindophenol (diaphorase activity). None of these reactions was detectable when O2 was removed from the reaction system, but all were restored upon readdition of O2. In the absence of exogenous electron carriers and in the p ...
DOI:
10.1104/pp.100.1.33
PubMed:
16652965

4. Variation in free-radical damage in rice cell suspensions with different embryogenic potentials

Author:
Benson, E.E.; Lynch, P.T.; Jones, J.
Source:
Planta 1992 v.188 no.3 pp. 296-305
ISSN:
0032-0935
Subject:
Oryza sativa; lipid peroxidation; free radicals; oxygen; embryo (plant); cell suspension culture; embryo culture; embryogenesis; enzyme activity; superoxide dismutase; catalase; peroxidase; cell lines; oxidative stress
Abstract:
... Levels of free-radical-mediated lipid peroxidation were monitored in cell-suspension cultures of Oryza sativa L. possessing different embryogenic potentials. Oxidative stress was evaluated using assays which sequentially assessed the stages of lipid peroxidation (diene conjugation, peroxidation, and the formation of secondary lipid-peroxidation products). Lipid peroxidation was significantly highe ...
DOI:
10.1007/BF00192795
PubMed:
24178318

5. Paraquat tolerance in a photomixotrophic culture of Chenopodium rubrum

Author:
Bhargava, S.
Source:
Plant cell reports 1993 v.12 no.4 pp. 230-232
ISSN:
0721-7714
Subject:
weed biology; chemical composition; catalase; superoxide dismutase; genetic variation; metabolic detoxification; Chenopodium rubrum; cultured cells; paraquat; photosystem I; herbicide resistance; enzyme activity; chlorophyll; peroxidase
Abstract:
... A paraquat tolerant line of Chenopodium rubrum has been compared with paraquat susceptible cultures, in terms of growth, chlorophyll content, photosystem I partial reactions, and the activities of some enzymes involved in detoxification of harmful oxygen radicals. Results indicate that paraquat tolerance is manifested through increased activity of superoxide dismutase, peroxidase and catalase, in ...
DOI:
10.1007/BF00237060
PubMed:
24197026

6. Antioxidant Response to NaCl Stress in Salt-Tolerant and Salt-Sensitive Cultivars of Cotton

Author:
Dalton R. Gossett; Eddie P. Millhollon; M. Cran Lucas
Source:
Crop science 1994 v.34 no.3 pp. 706-714
ISSN:
0011-183X
Subject:
salt tolerance; cultivars; glutathione-disulfide reductase; catalase; chemical constituents of plants; Gossypium hirsutum; alpha-tocopherol; varietal resistance; resistance mechanisms; genetic variation; enzyme activity; peroxidase; antioxidants
Abstract:
... The mechanism(s) importing salt tolerance to plants remains unresolved. Although cotton (Gossypium hirsutum L.) is classified as salt-tolerant plant, variation in salt tolerance has been observed among different cultivars. The purpose of this study was to determine if more salt-tolerant cultivars contain higher constitutive or inducible levels of antioxidants than more salt-sensitive cultivars. Gr ...
DOI:
10.2135/cropsci1994.0011183X003400030020x

7. Detoxificant Enzymes in Pumpkin Grown in Polluted Ambient Air

Author:
Annamaria Ranieri; Giorgio Schenone; Livio Lencioni; Gian Franco Soldatini
Source:
Journal of environmental quality 1994 v.23 no.2 pp. 360-364
ISSN:
0047-2425
Subject:
pollutants; air pollution; Cucurbita pepo; ozone; catalase; peroxidase; superoxide dismutase; enzyme activity; protein content; metabolic detoxification; leaves; environmental exposure; Italy
Abstract:
... Pumpkin [Cucurbita pepo (L.) cv. Ambassador] plants were grown under either nonfiltered or filtered ambient air in open-top field chambers (OTCs) near the urban area of Milan, Northern Italy. The effects of ambient air pollution on the enzymatic detoxification system of the leaves, both in terms of activity and isoform pattern were investigated. The data on air quality showed that ozone was the ma ...
DOI:
10.2134/jeq1994.00472425002300020022x

8. Mimosine-inhibited seed germination, seedling growth, and enzymes of Oryza sativa L

Author:
Prasad, M.N.V.; Subhashini, P.
Source:
Journal of chemical ecology 1994 v.20 no.7 pp. 1689-1696
ISSN:
0098-0331
Subject:
Oryza sativa; seedlings; roots; shoots; allelopathy; mimosine; seed germination; phytotoxicity; nitrate reductase; peroxidase; catalase; IAA oxidase; isozymes; enzyme activity
Abstract:
... The effect of mimosine (50 ppm and 100 ppm concentrations) on Oryza sativa (rice) seed germination; root and shoot growth, i.e., length and fresh weight of seedlings; activities of nitrate reductase, peroxidase, catalase, and IAA oxidase were investigated. Significant inhibition in seed germination and shoot length was noted. Root length was inhibited by 100 ppm mimosine; however, the 50 ppm was n ...
DOI:
10.1007/BF02059890
PubMed:
24242661

9. Tolerance and co‐tolerance of the grass Chloris barbata Sw. to mercury, cadmium and zinc

Author:
JITA PATRA; MAHESWAR LENKA; BRAHMA B. PANDA
Source:
new phytologist 1994 v.128 no.1 pp. 165-171
ISSN:
0028-646X
Subject:
soil pollution; mercury; cadmium; zinc; phytotoxicity; roots; enzyme activity; catalase; peroxidase; acid phosphatase; pathotypes; chemical constituents of plants; stress response; India
Abstract:
... Races of Chloris barbata Sw. from a mercury‐contaminated site in the vicinity of a chloralkali plant and from a non‐contaminated site were tested for their relative tolerance to mercury, cadmium and zinc. Pre‐rooted tillers of each of the races were grown in calcium nitrate solution, Ca(NO₃)₂, 4H₂O, l gl⁻¹ with or without HgCI₂ (0.001, 0.01, 0.05, 0.1 and mgl⁻¹), CdSO₄.8H₂O (0.05, 1.0, 2.5 and 5 m ...
DOI:
10.1111/j.1469-8137.1994.tb03999.x

10. Active oxygen in plant pathogenesis

Author:
Baker, C.J.; Orlandi, E.W.
Source:
Annual review of phytopathology 1995 v.33 pp. 299-321
ISSN:
0066-4286
Subject:
antimicrobial properties; peroxidase; plant diseases and disorders; free radicals; catalase; hydrogen peroxide; host-parasite relationships; linoleate 13S-lipoxygenase; superoxide dismutase; defense mechanisms; hypersensitive response; pathogenesis; enzyme activity; oxygen; ascorbic acid
Abstract:
... A brief overview of active oxygen metabolism and detection is discussed along with an updated description of its production during plant pathogen interactions. ...
Handle:
10113/58

11. Oxidoreductases from tomato fruit: inhibitory effect of a fungal glucose oxidase

Author:
Begliomini, A.L.; Montedoro, G.; Servili, M.; Petruccioli, M.; Federici, F.
Source:
Journal of food biochemistry 1995 v.19 no.3 pp. 161-173
ISSN:
0145-8884
Subject:
tomatoes; Penicillium variabile; caffeic acid; catalase; catechol oxidase; bleaching; glucose; linoleate 13S-lipoxygenase; food preservation; beta-carotene; pH; color; enzyme activity; peroxidase; glucose oxidase; Italy
Abstract:
... Glucose oxidase (GOD) produced by a strain of Penicillium (Penicillium variabile P16) was employed, in a model system, to control the activities of tomato lipoxygenase (LPO), polyphenoloxidase (PPO), and peroxidase (POD). GOD inhibited all three enzymes, at the typical pH of tomato fruit (4.3), i.e., the LPO was inhibited up to ca. 88%, the PPO up to ca. 63% and the POD up to ca. 50%. GOD also pre ...
DOI:
10.1111/j.1745-4514.1995.tb00529.x

12. Physiological and biochemical changes in young maize plants under iron deficiency. 2. Catalase, peroxidase, and nitrate reductase activities in leaves

Author:
Nenova, V.; Stoyanov, I.
Source:
Journal of plant nutrition 1995 v.18 no.10 pp. 2081-2091
ISSN:
0190-4167
Subject:
Zea mays; catalase; peroxidase; nitrate reductase; enzyme activity; iron; nutrient availability; leaves; nutrient deficiencies
Abstract:
... Young maize plants, grown hydroponically, were supplied with different amounts (7.5, 0.75, 0.15, 0.075, and 0 mg Fe/L) of iron (Fe). At 14, 21, and 28 days, in vitro activities of catalase, peroxidase and nitrate reductase in leaves were determined. Strong and complete Fe deficiency resulted in decreased enzyme activities. Under moderate Fe deficiency--often a restoration of the normal activity af ...
DOI:
10.1080/01904169509365046

13. Systemic responses in Arabidopsis thaliana infected and challenged with Pseudomonas syringae pv syringae

Author:
Summermatter, K.; Sticher, L.; Metraux, J.P.
Source:
Plant physiology 1995 v.108 no.4 pp. 1379-1385
ISSN:
0032-0889
Subject:
Pseudomonas syringae pv. syringae; Arabidopsis thaliana; induced resistance; leaves; necrosis; salicylic acid; chitinase; peroxidase; catalase; enzyme activity; hypersensitivity; niacin; hydrogen peroxide
Abstract:
... Attack of plants by necrotizing pathogens leads to acquired resistance to the same or other pathogens in tissues adjacent to or remotely located from the site of initial attack. We have used Arabidopsis thaliana inoculated with the incompatible pathogen Pseudomonas syringae pv syringae on the lower leaves to test the induction of systemic reactions. When plants were challenged with Pseudomonas syr ...

14. Habituation in sugarbeet plant cells: permanent stress or antioxidant adaptative strategy?

Author:
Hagege, D.
Source:
In vitro cellular & developmental biology 1996 v.32 no.1 pp. 1-5
ISSN:
1054-5476
Subject:
neoplasms; catalase; hydrogen peroxide; free radicals; linoleate 13S-lipoxygenase; oxygen; cell lines; enzyme activity; peroxidase; Beta vulgaris
DOI:
10.1007/BF02823004

15. Inactivation mechanism of ascorbate peroxidase at low concentrations of ascorbate; hydrogen peroxide decomposes compound I of ascorbate peroxidase

Author:
Miyake, C.; Asada, K.
Source:
Plant & cell physiology 1996 v.37 no.4 pp. 423-430
ISSN:
0032-0781
Subject:
plant physiology; Spinacia oleracea; thylakoids; ascorbic acid; peroxidase; enzyme activity; enzyme inhibitors; hydrogen peroxide; pH; oxygen; catalase; superoxide dismutase; chemical reactions; biochemical pathways; wavelengths
Abstract:
... One of the characteristic properties of ascorbate peroxidase (APX), which distinguishes it from guaiacol peroxidase, Cyt c peroxidase and glutathione peroxidase, is the rapid inactivation of the enzyme under conditions where an electron donor is absent. When thylakoid-bound APX (tAPX) in 100 micromolars ascorbate was diluted 500-fold with an ascorbate-depleted medium, the enzymatic activity was lo ...
DOI:
10.1093/oxfordjournals.pcp.a028963

16. Influence of salicylic acid on H2O2 production, oxidative stress, and H2O2-metabolizing enzymes. Salicylic acid-mediated oxidative damage requires H2O2

Author:
Rao, M.V.; Paliyath, G.; Ormrod, D.P.; Murr, D.P.; Watkins, C.B.
Source:
Plant physiology 1997 v.115 no.1 pp. 137-149
ISSN:
0032-0889
Subject:
lipid peroxidation; cell membranes; salicylic acid; dose response; hydrogen peroxide; carotenes; oxidation; peroxidase; leaves; Arabidopsis thaliana; copper; superoxide dismutase; enzyme activity; ascorbic acid; biosynthesis; phytotoxicity; zinc; catalase; stress response; biochemical pathways; thiourea; protein content; chlorophyll
Abstract:
... We investigated how salicylic acid (SA) enhances H2O2 and the relative significance of SA-enhanced H2O2 in Arabidopsis thaliana. SA treatments enhanced H2O2 production, lipid peroxidation, and oxidative damage to proteins, and resulted in the formation of chlorophyll and carotene isomers. SA-enhanced H2O2 levels were related to increased activities of Cu,Zn-superoxide dismutase and were independen ...
PubMed:
9306697
PubMed Central:
PMC158469

17. Detection of monodehydroascorbic acid radical in sulfite-treated leaves and mechanism of its formation

Author:
Veljovic-Jovanovic, S.; Oniki, T.; Takahama, U.
Source:
Plant & cell physiology 1998 v.39 no.11 pp. 1203-1208
ISSN:
0032-0781
Subject:
electron paramagnetic resonance spectroscopy; Vicia faba; leaves; sodium sulfite; phytotoxicity; ascorbic acid; biosynthesis; light intensity; nitrogen; measurement; catalase; enzyme activity; peroxidase; hydrogen peroxide; photorespiration; chemical reactions; chemical constituents of plants; stress response
Abstract:
... The aim of the present study is to detect the monodehydroascorbic acid (MDA) radical in broad bean (Vicia faba L.) leaves which were treated by vacuum-infiltration in Na2SO3 solution and subsequent centrifugation (sulfite-treated leaves). When sulfite-treated leaves were illuminated with white light, the electron spin resonance (ESR) signal of MDA radical was observed. The level of the MDA radical ...
DOI:
10.1093/oxfordjournals.pcp.a029321

18. Differences in chlorophyll loss at 13 degrees C for two broccoli (Brassica oleracea L.) cultivars associated with antioxidant enzyme activities

Author:
Toivonen, P.M.A.; Sweeney, M.
Source:
Journal of agricultural and food chemistry 1998 v.46 no.1 pp. 20-24
ISSN:
0021-8561
Subject:
cultivars; broccoli; catalase; free radicals; lipid peroxidation; superoxide dismutase; varietal resistance; storage quality; color; Brassica oleracea; enzyme activity; chlorophyll; peroxidase; antioxidants
Abstract:
... Two broccoli cultivars which have been previously found to have large difference s in yellowing susceptibility were studied to determine if there was a relations hip between antioxidant capability and chlorophyll loss at a simulated retail di splay temperature. Greenbelt cultivar retained a stable chlorophyll content over 4 days at 13 degrees C, while Emperor cultivar showed a constant decline in ...
DOI:
10.1021/jf970490n

19. Effect of mixing conditions on the behavior of lipoxygenase, peroxidase, and catalase in wheat flour doughs

Author:
Delcros, J.F.; Rakotozafy, L.; Boussard, A.; Davidou, S.; Porte, C.; Potus, J.; Nicolas, J.
Source:
Cereal chemistry 1998 v.75 no.1 pp. 85-93
ISSN:
0009-0352
Subject:
linoleic acid; dough; mixing; catalase; wheat flour; hydrogen peroxide; linoleate 13S-lipoxygenase; guaiacol; yeasts; food additives; duration; water; pH; denaturation; sodium chloride; temperature; enzyme activity; peroxidase; cysteine; ascorbic acid
Abstract:
... The effect of mixing has been tested on the extractable activities of lipoxygena se, peroxidase, and catalase from dough after 2, 5, and 20 min of mixing, and 30 min of rest period after 20 min of mixing. Different mixing conditions have bee n studied including temperature, atmosphere, speed, amount of water added to the dough, buffer solutions between pH 3.6 and 7.5 added to the dough, and differ ...
DOI:
10.1094/CCHEM.1998.75.1.85

20. Effect of putrescine, 4-PU-30, and abscisic acid on maize plants grown under normal, drought, and rewatering conditions

Author:
Todorov, D.; Alexieva, V.; Karanov, E.
Source:
Journal of plant growth regulation 1998 v.17 no.4 pp. 197-203
ISSN:
0721-7595
Subject:
Zea mays; seedlings; leaves; drought; polyethylene glycol; rehydration; putrescine; urea; abscisic acid; plant pigments; water content; hydrogen peroxide; malondialdehyde; quantitative analysis; proline; transpiration; enzyme activity; catalase; guaiacol; peroxidase; lipid peroxidation; dry matter accumulation; chemical constituents of plants; stress response
Abstract:
... The experiments were carried out with maize (Zea mays L.) seedlings, hybrid Kneja 530, grown hydroponically in a growth chamber. Twelve-day-old plants were foliar treated with putrescine, N1-(2-chloro-4-pyridyl)-N2-phenylurea (4-PU-30), and abscisic acid (ABA) at concentrations of 10-5 M. Twenty-four hours later the plants were subjected to a water deficit program, induced by 15% polyethylene glyc ...
DOI:
10.1007/PL00007035

21. Effect of water stress on biochemical and physiological characteristics of oat genotypes

Author:
Chandra, A.; Bhatt, R.K.; Misra, L.P.
Source:
Journal of agronomy and crop science 1998 v.181 no.1 pp. 45-48
ISSN:
0931-2250
Subject:
Avena sativa; water stress; genetic variation; plant physiology; enzyme activity; catalase; peroxidase; protein content; oxidation; drought tolerance; genotype
DOI:
10.1111/j.1439-037X.1998.tb00396.x

22. Maturation and ripening of fruit of Amelanchier alnifolia Nutt. are accompanied by increasing oxidative stress

Author:
Rogiers, S.Y.; Kumar, G.N.M.; Knowles, N.R.
Source:
Annals of botany 1998 v.81 no.2 pp. 203-211
ISSN:
0305-7364
Subject:
pericarp; lipid peroxidation; cell membranes; glutathione; linolenic acid; immunohistochemistry; hydrogen peroxide; Amelanchier alnifolia; glutathione transferase; oxidation; peroxidase; superoxide dismutase; linoleate 13S-lipoxygenase; enzyme activity; biosynthesis; glutathione-disulfide reductase; catalase; free radicals; color
Abstract:
... The extent of oxidative stress during ripening of saskatoon (Amelanchier alnifolia Nutt.) fruit was examined. Lipid peroxidation during fruit development from the mature green to the fully ripe (purple) stage was evidenced by the accumulation of ethane and 2-thiobarbituric acid reactive substances. Fruit polar lipid and free fatty acid concentrations also declined during ripening. Moreover, the do ...
DOI:
10.1006/anbo.1997.0543

23. Pathogen-induced changes in the antioxidant status of the apoplast in barley leaves

Author:
Vanacker, H.; Carver, T.L.W.; Foyer, C.H.
Source:
Plant physiology 1998 v.117 no.3 pp. 1103-1114
ISSN:
0032-0889
Subject:
alleles; Blumeria graminis f. sp. hordei; plant pathogenic fungi; glutathione; Hordeum vulgare; hydrogen peroxide; genotype; disease resistance; peroxidase; virulence; leaves; quantitative analysis; NADP-glucose-6-phosphate dehydrogenase; superoxide dismutase; glutathione dehydrogenase (ascorbate); enzyme activity; ascorbic acid; chemical composition; glutathione-disulfide reductase; catalase; biochemical pathways; genetic variation
Abstract:
... Leaves of two barley (Hordeum vulgare L.) isolines, Alg-R, which has the dominant Mla1 allele conferring hypersensitive race-specific resistance to avirulent races of Blumeria graminis, and Alg-S, which has the recessive mla1 allele for susceptibility to attack, were inoculated with B. graminis f. sp. hordei. Total leaf and apoplastic antioxidants were measured 24 h after inoculation when maximum ...

24. Alleviation of waterlogging damage in winter rape by uniconazole application: effects on enzyme activity, lipid peroxidation, and membrane integrity

Author:
Leul, M.; Zhou, W.J.
Source:
Journal of plant growth regulation 1999 v.18 no.1 pp. 9-14
ISSN:
0721-7595
Subject:
Brassica napus; seedlings; uniconazole; water stress; superoxide dismutase; catalase; peroxidase; enzyme activity; lipid peroxidation; cell membranes; membrane potential; crop production; flooded conditions; application rate; stress response; China
Abstract:
... Oilseed rape (Brassica napus L.) seedlings treated with uniconazole [(E)-1-(4-chlorophenyl) -4,4-di-methyl-2-(1,2,4-triazol-1-yl)-1-penten-3-ol] were transplanted at the five-leaf stage into specially designed experimental containers and then exposed to waterlogging for 3 weeks. After waterlogging stress, uniconazole-treated seedlings had significantly higher activities of superoxide dismutase, ca ...
DOI:
10.1007/PL00007046

25. Effect of adding exogenous oxidative enzymes on the activity of three endogenous oxidoreductases during mixing of wheat flour dough

Author:
Rakotozafy, L.; Mackova, B.; Delcros, J.F.; Boussard, A.; Davidou, S.; Potus, J.; Nicolas, J.
Source:
Cereal chemistry 1999 v.76 no.2 pp. 213-218
ISSN:
0009-0352
Subject:
food analysis; mixing; catalase; wheat flour; dough; linoleate 13S-lipoxygenase; enzyme activity; peroxidase; glucose oxidase
Abstract:
... The behavior of different exogenous enzymes (soybean lipoxygenase [SLOX], horseradish peroxidase [HPOD], catalase from bovine liver [BCAT], and glucose oxidase [GOX] from Aspergillus niger) added to dough was studied during mixing. The effect of adding these exogenous oxidoreductases on the activity of three oxidative enzymes present in wheat flour (lipoxygenase [WLOX], peroxidase [WPOD], and cata ...
DOI:
10.1094/CCHEM.1999.76.2.213

26. Harvest date affects the antioxidative systems in pear fruits

Author:
Lentheric, I.; Pinto, E.; Vendrell, M.; Larrigaudiere, C.
Source:
Journal of horticultural science & biotechnology 1999 v.74 no.6 pp. 791-795
ISSN:
1462-0316
Subject:
harvest date; metabolism; glutathione; Pyrus communis; glutathione-disulfide reductase; catalase; ascorbate peroxidase; superoxide dismutase; pears; oxidation; chemical constituents of plants; enzyme activity; oxides; peroxidase; ascorbic acid

27. Methyl jasmonate reduces water stress in strawberry

Author:
Wang, S.Y.
Source:
Journal of plant growth regulation 1999 v.18 no.3 pp. 127-134
ISSN:
0721-7595
Subject:
Fragaria vesca; catalase; jasmonic acid; lipid peroxidation; superoxide dismutase; glycolipids; transpiration; water stress; cell membranes; oxidation; chemical constituents of plants; phospholipids; enzyme activity; peroxidase; ascorbic acid
Abstract:
... The effect of methyl jasmonate (MJ) on changes of oxygen-scavenging enzyme activities and membrane lipid composition was studied in strawberry leaves under water stress. Under water stress, MJ treatment reduced the increase of peroxidase (EC 1.11.1.7; POD) activity, maintained higher catalase (EC 1.11.1.6; CAT) and superoxide dismutase (EC 1.15.1.1; SOD) activities, and ascorbic acid content. In a ...
DOI:
10.1007/PL00007060

28. Overexpression of an Arabidopsis peroxisomal ascorbate peroxidase gene in tobacco increases protection against oxidative stress

Author:
Wang, J.; Zhang, H.; Allen, R.D.
Source:
Plant & cell physiology 1999 v.40 no.7 pp. 725-732
ISSN:
0032-0781
Subject:
Nicotiana tabacum; gene transfer; Arabidopsis thaliana; peroxisomes; ascorbate oxidase; genes; transgenic plants; gene expression; oxidation; genetic code; genetic variation; peroxidase; catalase; enzyme activity; genotype; stress response
Abstract:
... The Arabidopsis gene APX3 that encodes a putative peroxisomal membrane-bound ascorbate peroxidase was expressed in transgenic tobacco plants. APX3-expressing lines had substantial levels of APX3 mRNA and protein. The H(2)O(2) can be converted to more reactive toxic molecules, e.g. hydroxyl radical, if it is not quickly removed from plant cells. The expression of APX3 in tobacco could protect leave ...
DOI:
10.1093/oxfordjournals.pcp.a029599
PubMed:
10501032

29. Early H2O2 accumulation in mesophyll cells leads to induction of glutathione during hyper-sensitive response in the barley-powdery mildew interaction

Author:
Vanacker, H.; Carver, T.L.W.; Foyer, C.H.
Source:
Plant physiology 2000 v.123 no.4 pp. 1289-1300
ISSN:
0032-0889
Subject:
cultivars; glutathione; Hordeum vulgare; Blumeria graminis f. sp. hordei; hydrogen peroxide; catalase; plant extracts; hypersensitive response; disease resistance; mesophyll; peroxidase; enzyme activity; infection; defense mechanisms
Abstract:
... H2O2 production and changes in glutathione, catalase, and peroxidase were followed in whole-leaf extracts from the susceptible (AlgS [Algerian/4* (F14) Man.(S)]; ml-a1 allele) and resistant (AlgR [Algerian/4* (F14) Man.(R)]; Ml-a1 allele) barley (Hordeum vulgare) isolines between 12 and 24 h after inoculation with powdery mildew (Blumeria graminis [DC]. Speer [syn. Erysiphe graminis DC] f.sp horde ...

30. Effects of physical (hypoxia, hyperoxia) and chemical (potassium dichromate, fenitrothion) stress on antioxidant enzyme activities in Chironomus riparius Mg. (Diptera, Chironomidae) larvae: potential biomarkers

Author:
Choi, J.; Roche, H.; Caquet, T.
Source:
Environmental toxicology and chemistry 2000 v.19 no.2 pp. 495-500
ISSN:
0730-7268
Subject:
Chironomus riparius; biomarkers; catalase; enzyme activity; fenitrothion; glutathione peroxidase; hemoglobin; hemolymph; hyperoxia; hypoxia; larvae; peroxidase; potassium; superoxide dismutase
Abstract:
... Effects of physical (hypoxia, hyperoxia) and chemical (potassium dichromate, fenitrothion) stress on antioxidant enzyme activities and hemoglobin content in Chironomus riparius Mg. (Diptera, Chironomidae) larvae were evaluated under laboratory conditions in order to identify pertinent biomarkers of stress. Hypoxia and hyperoxia caused an increase in Cu,Zn-superoxide dismutase (SOD) and Mn-SOD acti ...
DOI:
10.1897/1551-5028(2000)019<0495:EOPHHA>2.3.CO;2

31. Heat Stress Injury in Relation to Membrane Lipid Peroxidation in Creeping Bentgrass

Author:
Xiaozhong Liu; Bingru Huang
Source:
Crop science 2000 v.40 no.2 pp. 503-510
ISSN:
0011-183X
Subject:
Agrostis stolonifera var. palustris; antioxidant enzymes; catalase; cell membranes; chlorophyll; cool season grasses; cultivars; electrolyte leakage; enzyme activity; growth chambers; heat stress; heat tolerance; leaf chlorophyll content; leaves; lipid peroxidation; malondialdehyde; peroxidase; photochemistry; roots; superoxide dismutase; temperature; thermosensitivity
Abstract:
... Understanding physiological and biochemical factors involved in heat-stress injury would help improve heat tolerance of cool-season grasses. The objective of this study was to investigate lipid peroxidation of cell membranes in relation to heat-stress tolerance in creeping bentgrass (Agrostis palustris Huds.) . Two creeping bentgrass cultivars differing in heat tolerance, L-93 (heat tolerant) and ...
DOI:
10.2135/cropsci2000.402503x

32. Heat stress injury in relation to membrane lipid peroxidation in creeping bentgrass

Author:
Liu, X.; Huang, B.
Source:
Crop science 2000 v.40 no.2 pp. 503-510
ISSN:
0011-183X
Subject:
cultivars; peroxidase; heat tolerance; electrolytes; catalase; lipid peroxidation; air temperature; superoxide dismutase; cell membranes; oxidation; abiotic stress; chemical constituents of plants; photosynthesis; enzyme activity; chlorophyll; Agrostis stolonifera var. palustris; roots; leaves; Kansas
Abstract:
... Understanding physiological and biochemical factors involved in heat-stress injury would help improve heat tolerance of cool-season grasses. The objective of this study was to investigate lipid peroxidation of cell membranes in relation to heat-stress tolerance in creeping bentgrass (Agrostis palustris Huds.). Two creeping bentgrass cultivars differing in heat tolerance, L-93 (heat tolerant) and P ...

33. Salicylic acid mediated by the oxidative burst is a key molecule in local and systemic responses of cotton challenged by an avirulent race of Xanthomonas campestris pv malvacearum

Author:
Martinez, C.; Baccou, J.C.; Bresson, E.; Baissac, Y.; Daniel, J.F.; Jalloul, A.; Montillet, J.L.; Geiger, J.P.; Assigbetse, K.; Nicole, M.
Source:
Plant physiology 2000 v.122 no.3 pp. 757-766
ISSN:
0032-0889
Subject:
peroxidase; petioles; free radicals; catalase; Gossypium hirsutum; cotyledons; biochemical pathways; Xanthomonas campestris pv. malvacearum; salicylic acid; oxidation; oxygen; enzyme activity; virulence; hypersensitive response; defense mechanisms
Abstract:
... We analyzed the production of reactive oxygen species,the accumulation of salicylic acid (SA), and peroxidase activity during the incompatible interaction between cotyledons of the cotton (Gossypium hirsutum) cv Reba B50/Xanthomonas campestris pv malvacearum (Xcm) race 18. SA was detected in petioles of cotyledons 6 h after infection and 24 h post inoculation in cotyledons and untreated leaves. Th ...
PubMed:
10712539
PubMed Central:
PMC58911

34. The influence of elevated CO2 on the activities of antioxidative enzymes in two soybean genotypes

Author:
Pritchard, S.G.; Ju, Z.; Van Santen, E.; Qiu, J.; Weaver, D.B.; Prior, S.A.; Rogers, H.H.
Source:
Australian journal of plant physiology 2000 v.27 no.11 pp. 1061-1068
ISSN:
0310-7841
Subject:
ascorbate peroxidase; plant proteins; carbon dioxide; ribulose 1,5-diphosphate; genotype; carotenoids; oxidation; peroxidase; leaves; Glycine max; superoxide dismutase; glutathione dehydrogenase (ascorbate); enzyme activity; ribulose-bisphosphate carboxylase; glutathione-disulfide reductase; catalase; glutathione peroxidase; chemical constituents of plants; chlorophyll
Abstract:
... The effects of elevated compared to current atmospheric CO2 concentration (720 and 365 L L -1 , respectively) on antioxidative enzymatic activities of two soybean (Glycine max (L.) Merr.) genotypes (R and S) grown in open-top field chambers were investigated. Enzymatic activities of leaves collected 40, 47, 54 and 61 d after planting were measured. Elevated CO2 significantly decreased activities o ...
Handle:
10113/15105
DOI:
10.1071/PP99206

35. Cadmium-induced changes in antioxidative systems, hydrogen peroxide content, and differentiation in Scots pine roots

Author:
Schutzendubel, A.; Schwanz, P.; Teichmann, T.; Gross, K.; Langenfeld-Heyser, R.; Godbold, D.L.; Polle, A.
Source:
Plant physiology 2001 v.127 no.3 pp. 887-898
ISSN:
0032-0889
Subject:
root tips; ascorbate peroxidase; seedlings; lignification; cell differentiation; hydrogen peroxide; cadmium; oxidation; peroxidase; defense mechanisms; quantitative analysis; superoxide dismutase; Pinus sylvestris; enzyme activity; lignin; ascorbic acid; biosynthesis; glutathione-disulfide reductase; phytotoxicity; catalase; gas production (biological); stress response; plant morphology; phenolic compounds
Abstract:
... To investigate whether Cd induces common plant defense pathways or unspecific necrosis, the temporal sequence of physiological reactions, including hydrogen peroxide (H2O2) production, changes in ascorbate-glutathione-related antioxidant systems, secondary metabolism (peroxidases, phenolics, and lignification), and developmental changes, was characterized in roots of hydroponically grown Scots pin ...
DOI:
10.1104/pp.010318
PubMed:
11706171
PubMed Central:
PMC129260

36. Enzymes that scavenge reactive oxygen species are down-regulated prior to gibberellic acid-induced programmed cell death in barley aleurone

Author:
Fath, A.; Bethke, P.C.; Jones, R.L.
Source:
Plant physiology 2001 v.126 no.1 pp. 156-166
ISSN:
0032-0889
Subject:
Hordeum vulgare; aleurone cells; apoptosis; gibberellic acid; abscisic acid; hydrogen peroxide; free radicals; metabolism; catalase; ascorbic acid; peroxidase; superoxide dismutase; enzyme activity
Abstract:
... Gibberellins (GAs) initiate a series of events that culminate in programmed cell death, whereas abscisic acid (ABA) prevents this process. Reactive oxygen species (ROS) are key elements in aleurone programmed cell death. Incubation of barley (Hordeum vulgare) aleurone layers in H2O2 causes rapid death of all cells in GA- but not ABA-treated layers. Sensitivity to H2O2 in GA-treated aleurone cells ...
PubMed:
11351079
PubMed Central:
PMC102290

37. Phytoextraction of Cd and Pb and physiological effects in potato plants (Solanum tuberosum var. Spunta): importance of root temperature

Author:
Baghour, M.; Moreno, D.A.; Villora, G.; Hernandez, J.; Castilla, N.; Romero, L.
Source:
Journal of agricultural and food chemistry 2001 v.49 no.11 pp. 5356-5363
ISSN:
0021-8561
Subject:
peroxidase; plastic film mulches; stems; catalase; bioaccumulation; lead; root zone temperature; Solanum tuberosum; cadmium; tubers; phytoremediation; cell wall components; enzyme activity; roots
Abstract:
... Three consecutive years of field experiments were carried out to investigate the effect of different root-zone temperatures, induced by the application of mulches, on the concentration and accumulation of Cd and Pb and on bioindicators (chlorophylls, catalase, peroxidase and cell wall fractions) in different organs of potato plants (roots, tubers, stems, and leaflets). Four different plastic cover ...
DOI:
10.1021/jf010428x
PubMed:
11714328

38. UV-B and UV-C induction of NADP-malic enzyme in tissues of different cultivars of Phaseolus vulgaris (bean)

Author:
Casati, P.; Andreo, C.S.
Source:
Plant, cell and environment 2001 v.24 no.6 pp. 621-630
ISSN:
0140-7791
Subject:
ascorbate peroxidase; Phaseolus vulgaris; salicylic acid; red light; ultraviolet radiation; roots; malic enzyme; stems; gene expression; phytochrome; peroxidase; leaves; cultivars; messenger RNA; superoxide dismutase; enzyme activity; ascorbic acid; catalase; biochemical pathways; chemical constituents of plants
Abstract:
... The effects of the treatment of different tissues of three bean cultivars (Pinto, Vilmorin and Arroz) with ultra-violet (UV) UV-B and UV-C radiation and red light on the activity, quantity and RNA levels of NADP-malic enzyme (NADP-ME) were determined. Exposure to UV-B radiation for 8 h caused a marked increase of NADP-ME from leaves, stems and roots in the three cultivars studied. A similar induct ...
DOI:
10.1046/j.1365-3040.2001.00710.x

39. Water stress and accumulation of beta-N-oxalyl-L-alpha,beta-diaminopropionic acid in grass pea (Lathyrus sativus)

Author:
Xing, G.; Cui, K.; Li, J.; Wang, X.; Li, Z.
Source:
Journal of agricultural and food chemistry 2001 v.49 no.1 pp. 216-220
ISSN:
0021-8561
Subject:
peroxidase; glutathione-disulfide reductase; free radicals; catalase; seedlings; lipid peroxidation; drought tolerance; superoxide dismutase; hydrogen peroxide; neurotoxins; water stress; polyethylene glycol; enzyme activity; roots; leaves
Abstract:
... Grass pea seedlings were grown in an irrigated field. Roots of 15-day-old seedlings were treated with PEG, and leaves were studied. With the duration of PEG treatment, changes in the lipid peroxidation and activities of superoxide dismutase, catalase, peroxidase, and glutathione reductase as well as contents of hydrogen peroxide and beta-N-oxalyl-L-alpha,beta-diaminopropionic acid (ODAP) were assa ...
DOI:
10.1021/jf000912k
PubMed:
11170580

40. Abscisic acid, gibberellin and cell viability in cereal aleurone

Author:
Bethke, P.C.; Fath, A.; Spiegel, Y.N.; Hwang, Y.; Jones, R.L.
Source:
Euphytica 2002 v.126 no.1 pp. 3-11
ISSN:
0014-2336
Subject:
Hordeum vulgare; abscisic acid; gibberellins; viability; aleurone layer; free radicals; apoptosis; messenger RNA; catalase; superoxide dismutase; ascorbic acid; peroxidase; detection; enzyme activity; lipid metabolism; mitochondria; electron transfer

41. Effects of Simulated Acid Precipitation on Photosynthesis, Chlorophyll Fluorescence, and Antioxidative Enzymes in Cucumis sativus L.

Author:
Jing-Quan Yu; Su-Feng Ye; Li-Feng Huang
Source:
Photosynthetica 2002 v.40 no.3 pp. 331-335
ISSN:
0300-3604
Subject:
Cucumis sativus; acid deposition; acidity; catalase; chlorophyll; cucumbers; enzyme activity; fluorescence; gas exchange; lipid peroxidation; peroxidase; photosystem II; proteins; seedlings; superoxide dismutase; thylakoids
Abstract:
... The effects of simulated acid rain on gas exchange, chlorophyll fluorescence, and anti-oxidative enzyme activity in cucumber seedlings (Cucumis sativus L. cv. Jingchun No. 4) were investigated. Acid rain significantly reduced net photosynthetic rate and mainly non-stomatal factors contributed to the decrease of photosynthesis during the experimental period. The reduced photosynthesis was associate ...
DOI:
10.1023/A:1022658504882

42. In vivo and in vitro protective role of proline

Author:
Ozturk, L.; Demir, Y.
Source:
Plant growth regulation 2002 v.38 no.3 pp. 259-264
ISSN:
0167-6903
Subject:
Spinacia oleracea; leaves; in vitro culture; environmental factors; indicator species; proline; biosynthesis; catalase; peroxidase; catechol oxidase; enzyme activity; dose response; stress response
Abstract:
... Accumulation of proline in response to environmental stresses seems to be widespread among plants. To elucidate the role of proline in plant responses, in vivo and in vitro, we studied the effect of proline on catalase (CAT; EC 1.11.1.6), peroxidase (POD; EC 1.11.1.7) and polyphenol oxidase (PPO; EC 1.14.18.1). In vivo, these three enzymes were activated by proline, while CAT and POD were activate ...

43. Methyl jasmonate elicits a differential antioxidant response in light- and dark-grown canola (Brassica napus) roots and shoots

Author:
Comparot, S.M.; Graham, C.M.; Reid, D.M.
Source:
Plant growth regulation 2002 v.38 no.1 pp. 21-30
ISSN:
0167-6903
Subject:
peroxidase; glutathione; quantitative analysis; glutathione-disulfide reductase; catalase; protein content; seedlings; jasmonic acid; superoxide dismutase; ascorbate peroxidase; stress response; Brassica napus; ascorbic acid; chemical constituents of plants; enzyme activity; roots; antioxidants; light; shoots
Abstract:
... Since jasmonates have been shown to mimic some of the plant's responses to stress, the effect of methyl jasmonate on antioxidant enzymes and compounds was investigated in roots and shoots of light- and dark-grown canola (Brassica napus cv. Westar). The pattern of superoxide dismutase isoforms activity was also investigated. When enzyme activities were calculated on a per gram of fresh weight basis ...

44. Response of oxidative metabolism in watermelon plants subjected to cold stress

Author:
Rivero, Rosa M.; Ruiz, Juan M.; Garcia, Pablo C.; Lopez-Lefebre, Luis R.; Sanchez, Esteban; Romero, Luis
Source:
Functional plant biology 2002 v.29 no.5 pp. 643-648
ISSN:
1445-4408
Subject:
Citrullus lanatus; aerobiosis; ascorbate peroxidase; catalase; cold stress; enzyme activity; glutathione; glutathione dehydrogenase (ascorbate); glutathione-disulfide reductase; hydrogen peroxide; oxidative stress; peroxidase; shoots; superoxide dismutase; temperature; watermelons
Abstract:
... The objective of the present work was to determine the effect of thermal stress on oxidative metabolism in Citrullus lanatus [Thomb.] Mansf. cv. Dulce maravilla. Plants were grown for 30 d at two temperatures (10 and 35˚C), at which time we measured the leaf concentration of antioxidant compounds (ascorbate, dehydroascorbate, reduced glutathione, oxidized glutathione) and enzymatic activities [sup ...
DOI:
10.1071/PP01013

45. Studies on antioxidant activity of pomegranate (Punica granatum) peel extract uising in vivo models

Author:
Murthy, K.N.C.; Jayaprakasha, G.K.; Singh, R.P.
Source:
Journal of agricultural and food chemistry 2002 v.50 no.17 pp. 4791-4795
ISSN:
0021-8561
Subject:
pomegranates; ingestion; catalase; peroxidase; superoxide dismutase; enzyme activity; lipid peroxidation; liver; medicinal properties; carbon tetrachloride; toxicity; rats; antioxidant activity; extracts
Abstract:
... Pomegranate (Punica granatum) peel extracts have been shown to possess significant antioxidant activity in various in vitro models. Dried pomegranate peels were powdered and extracted with methanol for 4 h. The dried methanolic extract was fed to albino rats of the Wistar strain, followed by carbon tetrachloride (CCl4), and the levels of various enzymes, such as catalase, peroxidase, and superoxid ...
DOI:
10.1021/jf0255735

46. A Quantitative and Qualitative Analysis of Antioxidant Enzymes in Relation to Susceptibility of Apples to Superficial Scald

Author:
Kochhar, Sunita; Watkins, Christopher B.; Conklin, Patricia L.; Brown, Susan K.
Source:
Journal of the American Society for Horticultural Science 2003 v.128 no.6 pp. 910-916
ISSN:
0003-1062
Subject:
Malus; antioxidants; apples; ascorbate peroxidase; catalase; color; enzyme activity; gels; isozymes; peroxidase; qualitative analysis; superoxide dismutase
Abstract:
... The activities and isoenzyme patterns of guaiacol-dependent peroxidase (POX), ascorbate peroxidase (APX), superoxide dismutase (SOD) and catalase (CAT) were studied in yellow- and red-fruited crab apple [Malus (L.) Mill.] selections from a 'White Angel' ×'Rome Beauty' cross that show differential susceptibility to the physiological storage disorder, superficial scald. There were no consistent rela ...

47. Activities of Iron‐Containing Enzymes in Leaves of Two Tomato Genotypes Differing in Their Resistance to Fe Chlorosis

Author:
Dasgan, H. Yildiz; Ozturk, Levent; Abak, Kazim; Cakmak, Ismail
Source:
Journal of plant nutrition 2003 v.26 no.10-11 pp. 1997-2007
ISSN:
0190-4167
Subject:
Solanum lycopersicum var. lycopersicum; ascorbate peroxidase; catalase; chlorophyll; chlorosis; environmental factors; enzyme activity; genotype; glutathione-disulfide reductase; iron; leaf development; leaves; nutrient deficiencies; nutrient solutions; peroxidase; tomatoes
Abstract:
... Two tomato (Lycopersicon esculentum Mill., cvs. Pakmor and Target) genotypes differing in resistance to iron (Fe) deficiency were grown in nutrient solution under controlled environmental conditions over 50 days to study the relationships between severity of leaf chlorosis, total concentration of Fe, and activities of Fe‐containing enzymes in leaves. The activities of Fe‐containing enzymes ascorba ...
DOI:
10.1081/PLN-120024259

48. Amelioration of chilling stress by triadimefon in cucumber seedlings

Author:
Feng, Z.; Guo, A.
Source:
Plant growth regulation 2003 v.39 no.3 pp. 277-283
ISSN:
0167-6903
Subject:
seedling growth; electrical conductivity; seedlings; lipid peroxidation; triadimefon; chilling injury; dose response; malondialdehyde; hydrogen peroxide; proline; photosynthesis; peroxidase; quantitative analysis; Cucumis sativus; superoxide dismutase; water content; photoperiod; temperature; enzyme activity; antioxidant activity; plant pigments; catalase; chemical constituents of plants; protein content; light
Abstract:
... Cucumber (Cucumis satvus L.) seeds were imbibed in distilled water (control) and 10 mg l-1 triadimefon (TDM) for 10 h and then grown in a plant growth chamber with a light/dark temperature of 28/20 degrees C and a photoperiod of 14 h with a light intensity of 60 micromol m-2 s-1. 14-day-old seedlings were exposed to chilling stress with a light/dark temperature of 6/3 degrees C for 4 d. TDM improv ...

49. Amelioration of osmotic stress by brassinosteroids on seed germination and seedling growth of three varieties of sorghum

Author:
Vardhini, B.V.; Rao, S.S.R.
Source:
Plant growth regulation 2003 v.41 no.1 pp. 25-31
ISSN:
0167-6903
Subject:
Sorghum bicolor; grain sorghum; seed germination; seedling growth; plant proteins; proline; catalase; peroxidase; enzyme activity; brassinosteroids; plant stress; water stress; polyethylene glycol
Abstract:
... The effect of 28-homobrassinolide and 24-epibrassinolide on the germination and seedling growth of three varieties of sorghum, viz. CSH-14 and ICSV-745 (susceptible to water stress) and M-35-1 (resistant to water stress), under osmotic stress conditions was studied. Both the brassinosteroids were very effective in increasing the percentage of germination and seedling growth of all the three variet ...

50. Antioxidative defenses and water deficit-induced oxidative damage in rice (Oryza sativa L.) growing on non-flooded paddy soils with ground mulching

Author:
Liang, Y.C.; Hu, F.; Yang, M.C.; Yu, J.H.
Source:
Plant and soil 2003 v.257 no.2 pp. 407-416
ISSN:
0032-079X
Subject:
Oryza sativa; rice; paddy soils; drought; water stress; mulching; oxidative stress; lipid peroxidation; enzyme activity; peroxidase; catalase; ascorbate peroxidase; malondialdehyde
DOI:
10.1023/A:1027313902195

51. Changes in Phenolics and Some Oxidative Enzymes in Fenugreek Leaves Due to Powdery Mildew Infection

Author:
R. Avtar; A. S. Rathi; D. S. Jatasra; U. N. Joshi
Source:
Acta phytopathologica et entomologica Hungarica 2003 v.38 no.3-4 pp. 237-244
ISSN:
0238-1249
Subject:
catalase; catechol oxidase; disease severity; fenugreek; genotype; leaves; peroxidase; phenols; powdery mildew; sowing
Abstract:
... The contents of total phenols and orthodihydric phenols, specific activities of polyphenol oxidase (PPO), peroxidase (PO) and catalase in leaves of powdery mildew resistant (NLM and HM 350) and susceptible (T 8 and HM 65) genotypes of fenugreek were estimated at 40, 80 and 100 days after sowing (DAS) in inoculated (E1) and natural (E2) environments. The levels of all the biochemical constituents w ...
DOI:
10.1556/APhyt.38.2003.3-4.3

52. Differential effect of sorbitol and polyethylene glycol on antioxidant enzymes in rice leaves

Author:
Hsu, S.Y.; Kao, C.H.
Source:
Plant growth regulation 2003 v.39 no.1 pp. 83-90
ISSN:
0167-6903
Subject:
glutathione-disulfide reductase; catalase; Oryza sativa; osmotic pressure; lipid peroxidation; sorbitol; ascorbate oxidase; superoxide dismutase; water stress; enzyme inhibitors; polyethylene glycol; stress response; water content; enzyme activity; peroxidase; antioxidants; leaves; cycloheximide
Abstract:
... Polyethylene glycol (PEG) and sorbitol (ST) have each been used in osmotically induced water stress studies in plants, however, these osmotica may not have equivalent effects in plants. The present study was designed to examine whether antioxidant enzyme responses in rice leaves are different for PEG and ST of osmotic potential -1.5 MPa. As judged by relative water content, PEG treatment resulted ...

53. Effect of Heat or 1-Methylcyclopropene on Antioxidative Enzyme Activities and Antioxidants in Apples in Relation to Superficial Scald Development

Author:
Shaham, Zohar; Lers, Amnon; Lurie, Susan
Source:
Journal of the American Society for Horticultural Science 2003 v.128 no.5 pp. 761-766
ISSN:
0003-1062
Subject:
1-methylcyclopropene; Malus sylvestris; air; antioxidant activity; antioxidants; apples; ascorbate oxidase; ascorbate peroxidase; catalase; enzyme activity; gels; glutathione-disulfide reductase; heat; isozymes; oxidation; peroxidase; phenols; superoxide dismutase
Abstract:
... 'Granny Smith' apples [Malus sylvestris (L.) Mill. var. domestica (Borkh.) Mansf.] were harvested in two seasons and stored at 0 °C air storage with no pretreatment (control), after heating for 4 d at 38 °C, or after treating for 16 hours at 20 °C with 1 μL·L(-1) 1-methylcyclopropene (1-MCP). The effects of the two treatments on superficial scald development were consistent over both seasons. Scal ...

54. Effect of methyl jasmonate on sugarcane seedlings

Author:
G. Seema; Manoj K. Srivastava; Sangeeta Srivastava; Ashok K. Shrivastava
Source:
Sugar tech 2003 v.5 no.3 pp. 189-191
ISSN:
0972-1525
Subject:
catalase; dose response; enzyme activity; isozymes; methyl jasmonate; nitrate reductase; peroxidase; proline; protein content; seedlings; signal transduction; sugarcane; superoxide dismutase
Abstract:
... Sugarcane seedlings derived from single bud setts of CoLk 8102 were exposed to methyl jasmonate (1,2.5 and 5 ppm). Enzyme activities of catalase, peroxidase, Superoxide dismutase, nitrate reductase, isoenzyme analysis of Superoxide dismutase, proline and soluble protein content were determined after one month. The activities of catalase, Superoxide dismutase, nitrate reductase were lower at 1 ppm ...
DOI:
10.1007/BF02943634

55. Effects of ABA and S-3307 on drought resistance and antioxidative enzyme activity of turfgrass

Author:
Lu, S.; Guo, Z.; Peng, X.
Source:
Journal of horticultural science & biotechnology 2003 v.78 no.5 pp. 663-666
ISSN:
1462-0316
Subject:
Cynodon transvaalensis; Cynodon dactylon; catalase; drought tolerance; triazoles; superoxide dismutase; water stress; abscisic acid; turf grasses; antioxidant activity; peroxidase; enzyme activity; Axonopus; China

56. Effects of CO2 pretreatment on oxidative metabolism and core-browning incidence in controlled atmosphere stored pears

Author:
Lentheric, I.; Pinto, E.; Graell, J.; Larrigaudiere, C.
Source:
Journal of horticultural science & biotechnology 2003 v.78 no.2 pp. 177-181
ISSN:
1462-0316
Subject:
carbon dioxide; metabolism; catalase; ascorbate peroxidase; controlled atmosphere storage; superoxide dismutase; pears; food processing; pretreatment; oxidation; postharvest physiology; enzymatic browning; enzyme activity; peroxidase; ascorbic acid; Spain

57. Effects of putrescine and ethephon on some oxidative stress enzyme activities and proline content in salt stressed spinach leaves

Author:
Ozturk, L.; Demir, Y.
Source:
Plant growth regulation 2003 v.40 no.1 pp. 89-95
ISSN:
0167-6903
Subject:
Spinacia oleracea; leaves; salt stress; salt tolerance; oxidative stress; peroxidase; catechol oxidase; catalase; enzyme activity; chemical constituents of plants; proline; quantitative analysis; antagonists; putrescine; ethephon
Abstract:
... The effects of putrescine and ethephon on peroxidase (POD; EC 1.11.1.7), polyphenol oxidase (PPO; EC 1.14.18.1), catalase (CAT; EC 1.11.1.6) activities and proline content in spinach leaves under saline stress were investigated. In control conditions, putrescine increased PPO and CAT activities and proline content, but decreased POD activity. Ethephon increased these three enzyme activities but di ...

58. Herbicide Induced Oxidative Stress in Lettuce, Beans, Pea Seeds and Leaves

Author:
D. Štajner; M. Popović; M. Štajner
Source:
Biologia plantarum 2003 v.47 no.4 pp. 575-579
ISSN:
0006-3134
Subject:
alachlor; antioxidant activity; antioxidants; beans; catalase; enzyme activity; germination; leaves; lettuce; metolachlor; oxidative stress; paraquat; peas; peroxidase; seeds; superoxide dismutase
Abstract:
... The effects of different paraquat, alachlor and metolachlor concentrations on superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (GPX) activities and pigment contents in lettuce, bean and pea seeds and leaves were studied. Under paraquat (1.0 and 2.0 μM) treatment declined SOD and CAT activities were observed in seeds and undetectable ativity of GPX. Germination of all investigated se ...
DOI:
10.1023/B:BIOP.0000041064.04385.c7

59. Induction of enzymatic scavengers of active oxygen species in rice in response to infection by Rhizoctonia solani

Author:
V. Paranidharan; A. Palaniswami; P. Vidhyasekaran; R. Velazhahan
Source:
Acta physiologiae plantarum 2003 v.25 no.1 pp. 91-96
ISSN:
0137-5881
Subject:
Thanatephorus cucumeris; active oxygen species; ascorbate peroxidase; catalase; enzyme activity; isozymes; leaves; peroxidase; rice; superoxide dismutase
Abstract:
... Changes in the activities of peroxidase, ascorbate peroxidase, catalase and superoxide dismutase in rice in response to infection by Rhizoctonia solani were studied. A significant increase in peroxidase activity was observed in R. solani-inoculated rice leaf sheaths 1 day after inoculation and the maximum enzyme activity was recorded 3 days after inoculation at which period a 3-fold increase in pe ...
DOI:
10.1007/s11738-003-0041-0

60. Iron metabolism in tomato and watermelon plants: influence of nitrogen source

Author:
Rivero, R.M.; Sanchez, E.; Ruiz, J.M.; Romero, L.
Source:
Journal of plant nutrition 2003 v.26 no.12 pp. 2413-2424
ISSN:
0190-4167
Subject:
aconitate hydratase; biomass production; catalase; enzyme activity; iron; leaves; metabolism; nitrogen; nutrient solutions; peroxidase; roots; superoxide dismutase; tomatoes; toxicity; watermelons
Abstract:
... Tomato and watermelon plants were grown in nutrient solutions in which nitrogen (N) was supplied as NO3(-) (6 mM-N) or NH4(+) (6 mM-N). The experiments were conducted to evaluate the effect which different N sources exert on iron (Fe) uptake and accumulation, on the enzymatic activities of aconitase (Aco), chelate reductase (FeCH-R), peroxidase (POD), catalase (CAT), and Fe-superoxide dismutase (F ...
DOI:
10.1081/PLN-120025469

61. Possible involvement of hydrogen peroxide in the development of resistance mechanisms in ‘Golden Delicious’ apple fruit

Author:
Torres, R.; Valentines, M.C.; Usall, J.; Vinas, I.; Larrigaudiere, C.
Source:
Postharvest biology and technology 2003 v.27 no.3 pp. 235-242
ISSN:
0925-5214
Subject:
harvest date; metabolism; apples; fruits; catalase; hydrogen peroxide; superoxide dismutase; Penicillium expansum; enzyme activity; peroxidase; defense mechanisms
Abstract:
... Apples (Malusdomestica L. cv Golden Delicious) were picked 7 days before (harvest 1), or after (harvest 2) the commercial harvest time. Changes in H2O2 levels and in the activity of the H2O2-generating enzyme superoxide dismutase (SOD) and H2O2-scavenging enzymes catalase (CAT) and unspecific peroxidase (POX) were estimated immediately after harvest and during the first 24 h following wounding and ...
DOI:
10.1016/S0925-5214(02)00110-2

62. Tissue Antioxidant Status Differs in Spontaneously Hypertensive Rats Fed Fish Protein or Casein

Author:
Yahia, Dalila Ait; Madani, Shiem; Prost, Emmanuelle; Prost, Josiane; Bouchenak, Malika; Belleville, Jacques
Source:
Journal of nutrition 2003 v.133 no.2 pp. 479-482
ISSN:
0022-3166
Subject:
peroxidase; liver; catalase; lipid peroxidation; superoxide dismutase; very low density lipoprotein; hypertension; cholesterol; glutathione peroxidase; casein; heart; low density lipoprotein; fish; kidneys; rats; enzyme activity; blood pressure; antioxidants
Abstract:
... The present study was designed to determine whether changes in dietary protein source are related to changes in antioxidant status determined by enzyme activities of catalase, superoxide dismutase (SOD), gluthatione peroxidase (GSH-Px) and gluthatione reductase (GSSG-Red) and lipid peroxidation levels in various tissues. Spontaneously hypertensive rats (SHR; 5 wk old) were fed diets containing 20% ...
PubMed:
12566487

63. Tolerance of kikuyu grass to long term salt stress is associated with induction of antioxidant defences

Author:
Muscolo, A.; Sidari, M.; Panuccio, M.R.
Source:
Plant growth regulation 2003 v.41 no.1 pp. 57-62
ISSN:
0167-6903
Subject:
salt tolerance; grasses; glutathione-disulfide reductase; catalase; Pennisetum clandestinum; ascorbate peroxidase; glutathione dehydrogenase (ascorbate); duration; antioxidants; root growth; enzyme activity; peroxidase; salt stress; leaves
Abstract:
... The response of the antioxidant system to long term (15 d) salt stress (50, 100, 200 mM NaCl) was studied in kikuyu (Pennisetum clandestinum, Hochst.), a perennial grass with a well developed root system (often used as an erosion controlling ground cover) and with high nutritive properties as pasture. The activities of peroxidase, catalase, ascorbate peroxidase, ascorbate-free radical reductase, g ...

64. Antioxidant Metabolism Associated with Summer Leaf Senescence and Turf Quality Decline for Creeping Bentgrass

Author:
Qingzhang Xu; Bingru Huang
Source:
Crop science 2004 v.44 no.2 pp. 553-560
ISSN:
0011-183X
Subject:
Agrostis stolonifera var. palustris; active oxygen species; antioxidant activity; antioxidants; ascorbate peroxidase; catalase; chlorophyll; cultivars; electrolyte leakage; enzyme activity; golf courses; heat tolerance; lawns and turf; leaves; lipid peroxidation; metabolism; mowing; oxidative stress; peroxidase; protein content; seasonal variation; summer; superoxide dismutase; temperature; turf grasses; Kansas
Abstract:
... Turf quality of creeping bentgrass [Agrostis stolonifera var. palustris (Huds.) Farw.] often declines during summer months. Whether summer bentgrass decline is associated with oxidative stress is unclear. The objectives of this study were to investigate seasonal changes of antioxidant activities and lipid peroxidation under different mowing heights for two creeping bentgrass cultivars (L-93 and Pe ...
DOI:
10.2135/cropsci2004.5530

65. Cadmium toxicity is reduced by nitric oxide in rice leaves

Author:
Hsu, Y.T.; Kao, C.H.
Source:
Plant growth regulation 2004 v.42 no.3 pp. 227-238
ISSN:
0167-6903
Subject:
rice; ascorbate peroxidase; Oryza sativa; lipid peroxidation; glutathione synthase; phenylalanine ammonia-lyase; hydrogen peroxide; cadmium; peroxidase; leaves; quantitative analysis; superoxide dismutase; enzyme activity; stress tolerance; nitric oxide; phytotoxicity; catalase; glutathione-disulfide reductase; chemical constituents of plants; protein content; chlorophyll
Abstract:
... We evaluate the protective effect of nitric oxide (NO) against Cadmium (Cd) toxicity in rice leaves. Cd toxicity of rice leaves was determined by the decrease of chlorophyll and protein contents. CdCl2 treatment resulted in (1) increase in Cd content, (2) induction of Cd toxicity, (3) increase in H2O2 and malondialdehyde (MDA) contents, (4) decrease in reduced form glutathione (GSH) and ascorbic a ...

66. Characterization of oxidative enzyme changes in buffalograsses challenged by Blissus occiduus

Author:
Heng-Moss, T.; Sarath, G.; Baxendale, F.; Novak, D.; Bose, S.; Ni, X.; Quisenberry, S.
Source:
Journal of economic entomology 2004 v.97 no.3 pp. 1086-1095
ISSN:
0022-0493
Subject:
Blissus occiduus; insect pests; phytophagous insects; Bouteloua dactyloides; pest resistance; resistance mechanisms; chemical constituents of plants; catalase; peroxidase; catechol oxidase; enzyme activity; isozymes; protein content; plant response; grasses
Abstract:
... This research investigated the role of oxidative enzymes in the defense response of buffalograss, Buchloe dactyloides (Nuttall) Engelmann, to Blissus occiduus Barber. Changes in catalase and peroxidase activity were observed in both resistant and susceptible buffalograsses in response to chinch bug feeding. Susceptible plants were shown to have a lower level of catalase activity compared with thei ...
DOI:
10.1093/jee/97.3.1086
PubMed:
15279295

67. Effects of 24-epibrassinolide on seed germination, seedling growth, liquid peroxidation, proline content and antioxidative system of rice (Oryza sativa L.) under salinity stress

Author:
Ozdemir, F.; Bor, M.; Demiral, T.; Turkan, I.
Source:
Plant growth regulation 2004 v.42 no.3 pp. 203-211
ISSN:
0167-6903
Subject:
rice; seedling growth; ascorbate peroxidase; Oryza sativa; lipid peroxidation; proline; peroxidase; leaves; brassinolide; superoxide dismutase; enzyme activity; antioxidant activity; antioxidants; salt stress; stress tolerance; seed germination; glutathione-disulfide reductase; salinity; catalase; chemical constituents of plants; protein content
Abstract:
... The effects of 24-epibrassinolide (24-epiBL) on seedling growth, antioxidative system, lipid peroxidation, proline and soluble protein content were investigated in seedlings of the salt-sensitive rice cultivar IR-28. Seedling growth of rice plants was improved by 24-epiBL treatment under salt stress conditions. When seedlings treated with 24-epiBL were subjected to 120 mM NaCl stress, the activiti ...

68. Effects of aluminum and cadmium toxicity on growth and antioxidant enzyme activities of two barley genotypes with different Al resistance

Author:
Guo, T.; Zhang, G.; Zhou, M.; Wu, F.; Chen, J.
Source:
Plant and soil 2004 v.258 no.1-2 pp. 241-248
ISSN:
0032-079X
Subject:
Hordeum vulgare; barley; grain crops; genotype; genetic variation; metal tolerance; plant response; seedling growth; antioxidants; malondialdehyde; superoxide dismutase; peroxidase; catalase; enzyme activity; lipid peroxidation; free amino acids; proline; plant stress; aluminum; cadmium; heavy metals; toxic substances; synergism; hydroponics

69. Effects of simulated acid rain on the physiology of carmine spider mite, Tetranychus cinnabarinus (Boisduvals) (Acari: Tetranychidae)

Author:
Zhang, J.P.; Wang, J.J.; Zhao, Z.M.; Dou, W.; Chen, Y.
Source:
Journal of applied entomology 2004 v.128 no.5 pp. 342-347
ISSN:
0931-2048
Subject:
Tetranychus cinnabarinus; acid deposition; rainfall simulation; peroxidase; superoxide dismutase; catalase; acid phosphatase; alkaline phosphatase; carboxylesterase; enzyme activity; pH; acidity; temporal variation; arthropod pests; mites; Solanum melongena; eggplants
DOI:
10.1111/j.1439-0418.2004.00853.x

70. Enzyme activities associated with oxidative stress in Metarhizium anisopliae during germination, mycelial growth, and conidiation and in response to near-UV irradiation

Author:
Miller, C.D.; Rangel, D.; Braga, G.U.L.; Flint, S.; Kwon, S.I.; Messias, C.L.; Roberts, D.W.; Anderson, A.J.
Source:
Canadian journal of microbiology 2004 v.50 no.1 pp. 41-49
ISSN:
0008-4166
Subject:
sporulation; glutathione-disulfide reductase; Metarhizium anisopliae; catalase; hydrogen peroxide; entomopathogenic fungi; superoxide dismutase; mycelium; microbial growth; spore germination; enzyme activity; ultraviolet radiation; peroxidase; oxidative stress
DOI:
10.1139/w03-097
PubMed:
15052320

71. Evolution of robusta green coffee redox enzymatic activities with maturation

Author:
Montavon, P.; Bortlik, K.
Source:
Journal of agricultural and food chemistry 2004 v.52 no.11 pp. 3590-3594
ISSN:
0021-8561
Subject:
Coffea canephora; coffee beans; maturity stage; color; enzyme activity; peroxidase; catalase; catechol oxidase; food processing quality
Abstract:
... Oxidation reactions in coffee involve redox-sensitive polyphenols and appear to control the fragmentation of coffee storage proteins both in solution and during roasting. Coffee-specific nitrogenous flavor precursors may derive from this process. Accordingly, data converge to suggest that the redox status of the green bean before roasting might control the development of subsequent redox reactions ...
DOI:
10.1021/jf0308004

72. Graft union formation in tomato plants: peroxidase and catalase involvement

Author:
Fernandez-Garcia, N.; Carvajal, M.; Olmos, E.
Source:
Annals of botany 2004 v.93 no.1 pp. 53-60
ISSN:
0305-7364
Subject:
catalase; hydrogen peroxide; lignification; root hydraulic conductivity; enzyme activity; rootstock-scion relationships; peroxidase; Solanum lycopersicum var. lycopersicum
Abstract:
... Background and Aims: The use of grafted plants in vegetable crop production is now being expanded greatly. However, few data are available on the formation of graft unions in vegetables. In this work, the structural development of the graft union formation in tomato plants is studied, together with the possible relationship with activities of peroxidases and catalases. Methods: Tomato (Lycopersico ...
DOI:
10.1093/aob/mch014
PubMed:
14630693
PubMed Central:
PMC4242267

73. High content of endogenous cytokinins stimulates activity of enzymes and proteins involved in stress response in Nicotiana tabacum

Author:
Synkova, H.; Semoradova, S.; Burketova, L.
Source:
Plant cell, tissue, and organ culture 2004 v.79 no.2 pp. 169-179
ISSN:
0167-6857
Subject:
plant stress; protein synthesis; glutathione-disulfide reductase; catalase; ascorbate peroxidase; Nicotiana tabacum; cytokinins; abiotic stress; enzyme activity; endogenous sources; peroxidase; pathogenesis-related proteins; tobacco; stress tolerance
Abstract:
... Transgenic Pssu-ipt tobacco with elevated content of endogenous cytokinins grown under in vitro conditions exhibited elevated activities of antioxidant enzymes (i.e. catalase, ascorbate peroxidase, guaiacol and syringaldazine peroxidase, glutathione reductase) and some of enzymes involved in anaplerotic pathways such as glucose-6-phosphate dehydrogenase, glycolate oxidase, NADP-malic enzyme, NADP- ...

74. Investigations on the antioxidative defence responses to NaCl stress in a mangrove, Bruguiera parviflora: differential regulations of isoforms of some antioxidative enzymes

Author:
Parida, A.K.; Das, A.B.; Mohanty, P.
Source:
Plant growth regulation 2004 v.42 no.3 pp. 213-226
ISSN:
0167-6903
Subject:
ascorbate peroxidase; lipid peroxidation; guaiacol; oxidative stress; glutathione; hydrogen peroxide; peroxidase; leaves; quantitative analysis; Bruguiera; superoxide dismutase; sodium chloride; antioxidant activity; enzyme activity; aquatic plants; salt stress; stress tolerance; biosynthesis; glutathione-disulfide reductase; salinity; catalase; mangrove forests; mangrove swamps; India
Abstract:
... Two-month-old healthy seedlings of a true mangrove, Bruguiera parviflora, raised from propagules in normal nursery conditions were subjected to varying concentrations of NaCl for 45 d under hydroponic culture conditions to investigate the defence potentials of antioxidative enzymes against NaCl stress imposed oxidative stress. Changes in the activities of the antioxidative enzymes catalase (CAT), ...

75. Low temperature-induced changes in antioxidative metabolism in rubber-producing shrub, guayule (Parthenium argentatum Gray)

Author:
Sundar, D.; Chaitanya, K.V.; Jutur, P.P.; Reddy, A.R.
Source:
Plant growth regulation 2004 v.44 no.2 pp. 175-181
ISSN:
0167-6903
Subject:
peroxidase; rubber; metabolism; forest trees; oxidative stress; catalase; ascorbate peroxidase; glutathione-disulfide reductase; superoxide dismutase; Parthenium argentatum; enzyme activity; cold tolerance; antioxidants; leaves
Abstract:
... Two-year-old rubber-producing shrub, guayule (Parthenium argentatum, cv. 11591), was treated with low temperature (15 degrees C). The leaves were harvested at regular intervals (0, 2, 4 and 6 days) and the contents of protective antioxidants (ascorbic acid, monodehydroascorbate and caroteniods) and antioxidative enzymes (superoxide dismutase, catalase, peroxidases, glutathione reductase and monode ...

76. Nutrient status and enzyme activity alteration in cucumber seedlings as a response to boron deficiency

Author:
A. A. Mohamed; M. M. Shaaban
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2004 v.52 no.1 pp. 9-17
ISSN:
0238-0161
Subject:
biomass production; boron; catalase; copper; cucumbers; enzyme activity; hydroponics; iron; isozymes; leaves; magnesium; manganese; peroxidase; phenolic compounds; physiological response; roots; seedlings; shoots; tissues; vegetative growth; zinc
Abstract:
... Cucumber (Cucumus sativus L. var. Beit alpha) seedlings were grown in two groups on boron-deficient (traces of boron) and boron-sufficient (10.0 µM boron) hydroponic media for 30 days under controlled conditions. At harvest, the concentrations of magnesium (Mg), iron (Fe), manganese (Mn), zinc (Zn) and copper (Cu) were determined in addition to boron (B) in the dry tissues of roots and leaves. The ...
DOI:
10.1556/AAgr.52.2004.1.2

77. Off-flavour development in soybeans: comparative role of some antioxidants and related enzymes

Author:
Dahuja, A.; Madaan, T.R.
Source:
Journal of the science of food and agriculture 2004 v.84 no.6 pp. 547-550
ISSN:
0022-5142
Subject:
cultivars; off flavors; catalase; vitamin E; superoxide dismutase; soybeans; linoleate 13S-lipoxygenase; polyunsaturated fatty acids; enzyme activity; peroxidase; antioxidants; thiobarbituric acid-reactive substances; ascorbic acid
Abstract:
... Off-flavour development is the major impediment in the effective use of soybeans as food ingredients. In the present study, the levels of vitamin E and vitamin C along with those of antioxidant enzymes, like superoxide dismutase, peroxidase and catalase, were estimated in sixteen soybean varieties to explore their effectiveness against off-flavour generation. Thiobarbituric acid (TBA) number, an i ...
DOI:
10.1002/jsfa.1667

78. Oxidative behaviour of Blanquilla pears treated with 1-methylcyclopropene during cold storage

Author:
Larrigaudiere, C.; Vilaplana, R.; Soria, Y.; Recasens, I.
Source:
Journal of the science of food and agriculture 2004 v.84 no.14 pp. 1871-1877
ISSN:
0022-5142
Subject:
pears; raw fruit; food storage; cold storage; metabolic inhibitors; postharvest treatment; enzyme activity; superoxide dismutase; peroxidase; catalase; ascorbate peroxidase; hydrogen peroxide; ripening; postharvest physiology
Abstract:
... The increasing use of 1-methylcyclopropene (1-MCP) to extend the commercial life of fruit constitutes an attractive way of improving packing house competitiveness. This compound prevents the effects of ethylene in a wide range of fruit and vegetables. However, despite the extensive literature relating to this action on ethylene, little is known about its other physiological effects. In this work, ...
DOI:
10.1002/jsfa.1850

79. Oxidative stress responses during cassava post-harvest physiological deterioration

Author:
Reilly, K.; Gomez-Vesquez, R.; Buschmann, H.; Tohme, J.; Beeching, J.R.
Source:
Plant molecular biology 2004 v.56 no.4 pp. 625-641
ISSN:
0167-4412
Subject:
messenger RNA; cassava; catalase; postharvest diseases; superoxide dismutase; hydrogen peroxide; secondary metabolites; antioxidant activity; postharvest physiology; gene induction; enzyme activity; peroxidase; oxidative stress
PubMed:
15669147

80. Root-reducing capacity, rhizosphere acidification, peroxidase and catalase activities and nutrient levels of Citrus taiwanica and C. volkameriana seedlings, under Fe deprivation conditions

Author:
Chouliaras, V.; Dimassi, K.; Therios, I.; Molassiotis, A.; Diamantidis, G.
Source:
Agronomy for sustainable development 2004 v.24 no.1 pp. 1-6
ISSN:
0249-5627
Subject:
manganese; Citrus limonia; seedlings; phosphorus; roots; shoots; rhizosphere; iron; disease resistance; chlorosis; nutrient solutions; peroxidase; leaves; chelating agents; calcium; nutrient deficiencies; enzyme activity; acidification; catalase; nitrogen; zinc; magnesium; chemical constituents of plants; bark; Greece
DOI:
10.1051/agro:2003055

81. Superoxide dismutase, catalase and peroxidase activities do not confer protection against oxidative damage in salt‐stressed cowpea leaves

Author:
Fabio Rossi Cavalcanti; José Tadeu Abreu Oliveira; Aparecida Simone Martins‐Miranda; Ricardo Almeida Viégas; Joaquim Albenísio Gomes Silveira
Source:
new phytologist 2004 v.163 no.3 pp. 563-571
ISSN:
0028-646X
Subject:
Vigna unguiculata; cowpeas; leaves; transpiration; plant growth; plant proteins; superoxide dismutase; catalase; peroxidase; enzyme activity; lipid peroxidation; oxidative stress; salt stress
Abstract:
... • The aim of this study was to determine whether guaiacol peroxidase (POX), superoxide dismutase (SOD) and catalase (CAT) activities are effective in the protection and recovery of cowpea (Vigna unguiculata (L.) Walp.) leaves exposed to a salt‐induced oxidative stress. The salt treatment (200 mm NaCl) was imposed during six consecutive days and the salt withdrawal after 3 d (recovery treatment). C ...
DOI:
10.1111/j.1469-8137.2004.01139.x

82. Synthesis of antioxidants in wheat sprouts

Author:
Calzuola, I.; Marsili, V.; Gianfranceschi, G.L.
Source:
Journal of agricultural and food chemistry 2004 v.52 no.16 pp. 5201-5206
ISSN:
0021-8561
Subject:
Triticum aestivum; wheat; plant extracts; extraction; ethanol; water; antioxidants; antioxidant activity; free radicals; enzyme activity; catalase; peroxidase; NADH dehydrogenase
Abstract:
... Aqueous and ethanolic extracts from wheat (Triticum aestivum) sprout powder were analyzed to determine its reduction and antioxidant activities. Mean and standard deviation of five independent samples were reported. The results showed that the micromoles of potassium ferricyanide reduced by aqueous and ethanolic extracts corresponding to 1 g of sprout powder (80.6 ± 11.2 and 9.7 ± 1.8, respectivel ...
DOI:
10.1021/jf0307752

83. The effect of washing on physicochemical changes in packaged, sliced green peppers

Author:
Toivonen, P.M.A.; Stan, S.
Source:
International journal of food science & technology 2004 v.39 no.1 pp. 43-51
ISSN:
0950-5423
Subject:
sweet peppers; total soluble solids; sanitizing; food packaging; volatile organic compounds; carbon dioxide; Capsicum annuum; modified atmosphere packaging; phenol; food storage; acetaldehyde; fresh-cut foods; peroxidase; oxygen; washing; food processing quality; chlorine; superoxide dismutase; firmness; enzyme activity; ethanol; solutions; catalase; water
Abstract:
... Whole green bell peppers (Capsicum annuum L.) were obtained through a local fresh-cut company. They were washed in a 100 ppm chlorine solution, dried and then sliced into 0.5-cm wide strips. A bulk sample of slices was divided into four treatments: (1) no wash, (2) one wash in fresh distilled water, (3) two sequential washes in fresh distilled water, and (4) three sequential washes in fresh distil ...
DOI:
10.1111/j.1365-2621.2004.00744.x

84. The survival mechanism of dune reed (Phragmites communis) cultures under high sodium chloride concentration

Author:
Zhao, L.Q.; Cui, S.X.; Zhang, L.X.; Zhang, C.L.
Source:
Plant cell, tissue, and organ culture 2004 v.79 no.3 pp. 291-298
ISSN:
0167-6857
Subject:
Phragmites australis; in vitro culture; salt stress; salt tolerance; cell growth; viability; culture media; sodium chloride; dose response; plasma membrane; antioxidant activity; catalase; peroxidase; superoxide dismutase; enzyme activity; ecotypes; genetic variation
Abstract:
... Adaptations to salt stress were studied in embryogenic cultures from two ecotypes of reed (Phragmites communisT.). In the 600 mM NaCl treatment, relative cell viability of dune reed embryogenic cultures from a desert region was 56% greater than the control, 198% greater than swamp reed embryogenic cultures. After treatment with different NaCl concentrations, their relative growth rates (RGRs), pyr ...

85. Cadmium effects in sunflower: membrane permeability and changes in catalase and peroxidase activity in leaves and calluses

Author:
Azevedo, H.; Pinto, C.G.G.; Santos, C.
Source:
Journal of plant nutrition 2005 v.28 no.12 pp. 2233-2241
ISSN:
0190-4167
Subject:
Helianthus annuus; cadmium; cell membranes; membrane permeability; catalase; peroxidase; enzyme activity; leaves; callus; tissue culture; stress tolerance; antioxidant activity; protein content; mortality; application rate
Abstract:
... Mechanisms preventing oxidative burst in cells exposed to high metal concentrations are crucial for cell survival. In this report, sunflower (Helianthus annuus L.) was used as a model species to investigate: (a) how cadmium (Cd) affects plant defense pathways (in particular, those involved in preventing oxidative stress), and (b) whether antioxidative enzymes of plants and of in vitro cell culture ...
DOI:
10.1080/01904160500324816

86. Changes in the electrophoretic spectra of antioxidant enzymes in nitrate-fed and nitrogen-fixing soybean subjected to gradual water stress

Author:
E. Kirova; D. Nedeva; A. Nikolova; G. Ignatov
Source:
Acta agronomica Academiae Scientiarum Hungaricae 2005 v.52 no.4 pp. 323-332
ISSN:
0238-0161
Subject:
antioxidants; catalase; drought; electrophoresis; enzyme activity; humidity; isozymes; leaves; nitrates; nitrogen; nitrogen fixation; peroxidase; soil; soybeans; superoxide dismutase; water stress
Abstract:
... The effect of two sources of nitrogen (nitrogen fixation or nitrate assimilation) and gradual water stress on theelectrophoretic spectra of peroxidase, catalase and superoxide dismutase was studied in soybean leaves. An increase in H2O2 production was observed, especially after the prolonged drought treatment. At 50% drought the activity of anionic peroxidase activity for iso ...
DOI:
10.1556/AAgr.52.2004.4.1

87. Differential inter- and intra-specific defense induction in Lupinus by Myzus persicae feeding

Author:
Cardoza, Y.J.; Reidy-Crofts, J.; Edwards, O.R.
Source:
Entomologia experimentalis et applicata 2005 v.117 no.2 pp. 155-163
ISSN:
0013-8703
Subject:
peroxidase; catalase; Lupinus; catechol oxidase; Myzus persicae; varieties; feeding behavior; plant response; proteinase inhibitors; induced resistance; enzyme activity; pest resistance; phenolic compounds
Abstract:
... Experiments were conducted to investigate the potential induction of plant defenses by Myzus persicae Sulzer (Homoptera: Aphididae) feeding on five lupin, Lupinus spp. (Leguminosae), varieties with well-characterized levels of aphid resistance. Myzus persicae feeding on L. angustifolius and L. luteus varieties induced genotype-specific changes in their host that were not consistent with the level ...
DOI:
10.1111/j.1570-7458.2005.00344.x

88. Effect of cadmium on growth and the activity of H2O2 scavenging enzymes in Colocassia esculentum

Author:
Patel, M.J.; Patel, J.N.; Subramanian, R.B.
Source:
Plant and soil 2005 v.273 no.1-2 pp. 183-188
ISSN:
0032-079X
Subject:
agricultural soils; heavy metals; plant response; polluted soils; plant proteins; soil pollution; hydrogen peroxide; dry matter accumulation; cadmium; peroxidase; Colocasia esculenta; pollutants; physiological response; enzyme activity; catalase; plant anatomy; taro; protein content; chlorophyll; soil-plant interactions
DOI:
10.1007/s11104-004-7402-3

89. Effect of α-tocopherol on antioxidant enzyme activities and lipid peroxidation in rainbow trout (Oncorhynchus mykiss)

Author:
?. Gülç?n; Ş. Beydem?r; O. H?sar
Source:
Acta veterinaria Hungarica 2005 v.53 no.4 pp. 425-433
ISSN:
0236-6290
Subject:
Oncorhynchus mykiss; alpha-tocopherol; antioxidant activity; catalase; enzyme activity; erythrocytes; gene expression; glutathione-disulfide reductase; lipid peroxidation; malondialdehyde; oxidative stress; peroxidase; reproduction; signal transduction
Abstract:
... In this study, the effect of α-tocopherol on the antioxidant capacity of rainbow trout (Oncorhynchus mykiss) was determined. For this purpose, activities of antioxidant enzymes such as catalase (CAT), peroxidase (POD) and glutathione reductase (GSSG-Rx) were investigated. Enzyme activities were measured at 0 (control), 1, 3 and 5 h after α-tocopherol injection. In addition, the levels of ma ...
DOI:
10.1556/AVet.53.2005.4.3

90. Effects of calcium, stress on contents of chlorophyll and carotenoid, LPO levels, and antioxidant enzyme activities in Mentha

Author:
Candan, N.; Tarhan, L.
Source:
Journal of plant nutrition 2005 v.28 no.1 pp. 127-139
ISSN:
0190-4167
Subject:
ascorbate peroxidase; reactive oxygen species; lipid peroxidation; nutrient excess; medicinal plants; Mentha pulegium; cell membranes; carotenoids; peroxidase; leaves; plant nutrition; calcium; nutrient deficiencies; superoxide dismutase; enzyme activity; stress tolerance; catalase; nutrient availability; polyunsaturated fatty acids; chlorophyll
Abstract:
... The distribution of chlorophyll and carotenoid contents and antioxidant enzyme activities such as superoxide dismutase (SOD, EC 1.15.1.1), catalase (CAT, EC 1.11.1.6), ascorbate-dependent peroxidase (AsA-dep POD, EC 1.11.1.11), guaiacol-dependent peroxidase (Gua-dep POD, EC 1.11.1.7), and lipid peroxidation levels (LPO) were investigated according to the leaf positions of Mentha pulegium grown in ...
DOI:
10.1081/PLN-200042192

91. Effects of hydroponic solution EC, substrates, PPF and nutrient scheduling on growth and photosynthetic competence during acclimatization of micropropagated Spathiphyllum plantlets

Author:
Dewir, Y.H.; Chakrabarty, D.; Ali, M.B.; Hahn, E.J.; Paek, K.Y.
Source:
Plant growth regulation 2005 v.46 no.3 pp. 241-251
ISSN:
0167-6903
Subject:
electrical conductivity; application timing; ascorbate peroxidase; light intensity; micropropagation; measurement; roots; shoots; stomatal conductance; in vitro culture; hydroponics; nutrient solutions; photosynthesis; peroxidase; plant growth; net assimilation rate; enzyme activity; antioxidants; glutathione-disulfide reductase; catalase; diurnal variation; Spathiphyllum

92. Hydrogen peroxide induced oxidative stress damage and antioxidant enzyme response in Caco-2 human colon cells

Author:
Wijeratne, S.S.K.; Cuppett, S.L.; Schlegel, V.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.22 pp. 8768-8774
ISSN:
0021-8561
Subject:
intestinal mucosa; humans; cell lines; hydrogen peroxide; oxidative stress; colon; enzyme activity; peroxidase; superoxide dismutase; glutathione peroxidase; catalase; cytotoxicity
Abstract:
... Studies were conducted to evaluate the cell damage caused by exposing human colon carcinoma cells, Caco-2, to hydrogen peroxide at concentrations varying from 0 to 250 micromolar for 30 min. Evaluation of cell viability, as measured by trypan blue dye exclusion test, showed that the loss of viability was <5% at concentrations up to 250 micromolar hydrogen peroxide. Cell membrane damage and DNA dam ...
DOI:
10.1021/jf0512003

93. Induced resistance in Yali pear (Pyrus bretschneideri Rehd.) fruit against infection of Penicillium expansum by postharvest infiltration of acibenzolar-S-methyl

Author:
Cao, J.; Jiang, W.; He, H.
Source:
Phytopathologische Zeitschrift 2005 v.153 no.11-12 pp. 640-646
ISSN:
0931-1785
Subject:
Pyrus; plant pathogenic fungi; disease incidence; fruit trees; phenylalanine ammonia-lyase; systemic acquired resistance; malondialdehyde; hydrogen peroxide; fungal diseases of plants; phenolic compounds; pears; disease severity; disease resistance; peroxidase; postharvest treatment; superoxide dismutase; enzyme activity; catalase; Penicillium expansum; fruit crops; chitinase
DOI:
10.1111/j.1439-0434.2005.01031.x

94. Influence of cadmium toxicity on growth and antioxidant enzyme activity in rice cultivars with different grain cadmium accumulation

Author:
Hassan, M.J.; Shao, G.; Zhang, G.
Source:
Journal of plant nutrition 2005 v.28 no.7 pp. 1259-1270
ISSN:
0190-4167
Subject:
Oryza sativa; rice; grain crops; cadmium; phytotoxicity; plant growth; antioxidant activity; enzyme activity; cultivars; seeds; translocation (plant physiology); lipid peroxidation; chlorophyll; chemical constituents of plants; malondialdehyde; superoxide dismutase; catalase; peroxidase
Abstract:
... The effect of cadmium (Cd) toxicity on growth, lipid peroxidation, and antioxidant enzymes was studied using two rice cultivars, Bing 97252 with low and Xiushui 63 with high grain Cd accumulation. Plants were exposed to 0-5 micromolar Cd in hydroponic culture. Cadmium stress inhibited plant height and chlorophyll content and altered melondialdehyde (MDA) content and the activities of superoxide di ...
DOI:
10.1081/PLN-200063298

95. On the relationship between isoprene emission and thermotolerance in Phragmites australis leaves exposed to high temperatures and during the recovery from a heat stress

Author:
Velikova, V.; Loreto, F.
Source:
Plant, cell and environment 2005 v.28 no.3 pp. 318-327
ISSN:
0140-7791
Subject:
Phragmites australis; heat tolerance; photosynthesis; stomatal conductance; electron transport chain; hydrogen peroxide; malondialdehyde; catalase; peroxidase; enzyme activity; isoprenoids; heat stress; plant stress
Abstract:
... Thermotolerance induced by isoprene has been assessed during heat bursts but there is little information on the ability of endogenous isoprene to confer thermotolerance under naturally elevated temperature, on the interaction between isoprene-induced thermotolerance and light stress, and on the persistence of this protection in leaves recovering at lower temperatures. Moderately high temperature t ...
DOI:
10.1111/j.1365-3040.2004.01314.x

96. Prevention of hyperhydricity in micropropagated carnation shoots by bottom cooling: implications of oxidative stress

Author:
Saher, S.; Piqueras, A.; Hellin, E.; Olmos, E.
Source:
Plant cell, tissue, and organ culture 2005 v.81 no.2 pp. 149-158
ISSN:
0167-6857
Subject:
guaiacol; micropropagation; oxidative stress; shoots; in vitro culture; dose response; water stress; agar; in vitro regeneration; peroxidase; cultivars; superoxide dismutase; cut flowers; enzyme activity; culture media; antioxidants; stress tolerance; catalase; cooling; Dianthus caryophyllus; genetic variation
Abstract:
... Carnation shoot cultures were micropropagated in two different agar concentrations (0.58 and 0.85%) and placed in a bottom cooling system or control conditions. During the culture period of 28 days, it was observed that relative humidity, hyperhydricity, dry weight, multiplication rate, and the activity of the antioxidant enzymatic system changed in relation to the agar concentration used and the ...

97. Selenium modulates the activities of antioxidant enzymes, osmotic homeostasis and promotes the growth of sorrel seedlings under salt stress

Author:
Kong, L.; Wang, M.; Bi, D.
Source:
Plant growth regulation 2005 v.45 no.2 pp. 155-163
ISSN:
0167-6903
Subject:
root tips; seedling growth; osmotic pressure; developmental stages; selenium; dose response; homeostasis; mesophyll; peroxidase; leaves; superoxide dismutase; sodium chloride; ultrastructure; enzyme activity; antioxidants; salt stress; salt tolerance; forage crops; Rumex patientia; catalase
Abstract:
... Using physiological assays coupled with ultrathin tissue sections, we investigated the impacts of exogenous selenium (Se) on the growth, antioxidant enzymes, osmotic regulation and ultrastructural modifications of leaf mesophyll and root tip cells of 100 mM NaCl-stressed sorrel (Rumex patientia x R. tianshanicus) seedlings. At low concentrations (1-5 micromolar), Se tended to stimulate the growth, ...

98. Zinc stress in mustard as altered by sulfur deficiency

Author:
Chatterjee, C.; Sinha, P.; Dube, B.K.
Source:
Journal of plant nutrition 2005 v.28 no.4 pp. 683-690
ISSN:
0190-4167
Subject:
peroxidase; sulfur; carbonate dehydratase; zinc; nutrient-nutrient interactions; nutrient availability; nutrient deficiencies; seed set; catalase; dry matter accumulation; fruit set; crop yield; ribonucleases; synergism; enzyme activity; Brassica rapa subsp. oleifera; application rate
Abstract:
... To see the effect of sulfur (S) deficiency on zinc (Zn) stress, mustard (Brassica campestris L.) cv. 'T59' was grown in refined sand at two levels of S, deficient (0.02 mM) and normal (2 mM) each at three levels of Zn, low (0.01 μ M), adequate (1 μ M), and excess (100 μ M). In mustard, the effects of low Zn--such as decrease in biomass, pod, and seed yield; concentration of chlorophyll a and b and ...
DOI:
10.1081/PLN-200052643

99. Antioxidant potentials of flaxseed by in vivo model

Author:
Rajesha, J.; Murthy, K.N.C.; Kumar, M.K.; Madhusudhan, B.; Ravishankar, G.A.
Source:
Journal of agricultural and food chemistry 2006 v.54 no.11 pp. 3794-3799
ISSN:
0021-8561
Subject:
linseed; food intake; antioxidants; lignans; antioxidant activity; catalase; superoxide dismutase; peroxidase; enzyme activity; liver; carbon tetrachloride; poisoning; liver function; lipid peroxidation; rats
Abstract:
... The present study reports the antioxidant activity of flaxseed as measured by feeding weanling albino rats with 5.0% and 10.0% of flaxseed (constituting approximately 0.75 and 1.5 g kg(-1)) for 14 days followed by challenging animals with 2.0 g kg(-1) b.w. CCl4 as toxin. Activity was assessed by measuring hepatic marker enzymes like catalase, superoxide dismutase (SOD), and peroxidase and comparin ...
DOI:
10.1021/jf053048a

100. Antioxidative enzyme activities in wheat genotypes

Author:
Aleksandra Mišan; Dubravka Štajner; Marija Kraljević-Balalić; Marija Kakaš; Agneš Kapor
Source:
Cereal research communications 2006 v.34 no.2-3 pp. 997-1004
ISSN:
0133-3720
Subject:
antioxidants; catalase; enzyme activity; genotype; hybrids; leaves; lipid peroxidation; malondialdehyde; parents; peroxidase; superoxide dismutase; wheat
Abstract:
... Activities of superoxide dismutase (SOD), guaiacol peroxidase (PX), glutahione peroxidase (GPX) and catalase (CAT) as well as formation of malondialdehyde (MDA) and liposoluble fluorescent compounds (LFC) in leaves of 20 wheat genotypes, parents and hybrids of F1 and F2 generation were examined. The aim was to determine inheriting pattern of investigated parameters and relation between antioxidati ...
DOI:
10.1556/CRC.34.2006.2-3.230