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You searched for: Publication year rev 8003-1997 Remove constraint Publication year rev: 8003-1997 Subject term jasmonic acid Remove constraint Subject term: jasmonic acid
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1. A gene encoding a chloroplast-targeted lipoxygenase in tomato leaves is transiently induced by wounding, systemin, and methyl jasmonate

Author:
Heitz, T.; Bergey, D.R.; Ryan, C.A.
Source:
Plant physiology 1997 v.114 no.3 pp. 1085-1093
ISSN:
0032-0889
Subject:
messenger RNA; protein composition; protein synthesis; complementary DNA; genetic code; jasmonic acid; linoleate 13S-lipoxygenase; defense mechanisms; stearic acid; amino acid sequences; gene expression; biochemical pathways; protein transport; leaves; genes; ripening; chloroplasts; Solanum lycopersicum var. lycopersicum
Abstract:
... We investigated the relationship between the expression of lipoxygenase (LOX) genes and the systemin-dependent wound response in tomato (Lycopersicon esculentum) leaves. A polymerase chain reaction-based approach was used to isolate two tomato Lox cDNAs, called TomLoxC and TomLoxD. Both TomLOXC and TomLOXD amino acid sequences possess an N-terminal extension of about 60 residues that were shown by ...
PubMed:
9232884
PubMed Central:
PMC158398

2. A major jasmonate-inducible protein of sweet potato, ipomoelin, is an ABA-independent wound-inducible protein

Author:
Imanishi, S.; Kito-Nakamura, K.; Matsuoka, K.; Morikami, A.; Nakamura, K.
Source:
Plant & cell physiology 1997 v.38 no.6 pp. 643-652
ISSN:
0032-0781
Subject:
sporamin; Oryza sativa; Moraceae; in vitro culture; dose response; stems; jasmonic acid; clones; Ipomoea batatas; gene expression; petioles; protein composition; messenger RNA; seeds; complementary DNA; genetic code; sucrose; amino acid sequences; sodium chloride; protein synthesis; lectins; stress response; physicochemical properties; cultured cells; nucleotide sequences; genetic variation; abscisic acid
Abstract:
... Treatment of sweet potato plants cultured in vitro with a vapor of methyl jasmonate (MeJA) induced an accumulation in leaves of a large amount of protein with an apparent molecular mass of 18 kDa. This protein, designated ipomoelin, was purified, and the amino acid sequences of proteolytic fragments were determined. Screening a cDNA library of MeJA-treated leaves by oligonucleotide probes designed ...
DOI:
10.1093/oxfordjournals.pcp.a029216
PubMed:
9249986

3. Abscisic acid and jasmonic acid activate wound-inducible genes in potato through separate, organ-specific signal transduction pathways

Author:
Dammann, C.; Rojo, E.; Sanchez-Serrano, J.J.
Source:
plant journal 1997 v.11 no.4 pp. 773-782
ISSN:
0960-7412
Subject:
Solanum tuberosum; jasmonic acid; abscisic acid; gene expression; mechanical damage; leaves; roots; proteinase inhibitors; cathepsins; leucyl aminopeptidase; amidine hydrolases; messenger RNA; biochemical pathways; dosage; buds; tubers; nucleotide sequences; amino acid sequences; phosphoprotein phosphatase; complementary DNA
Abstract:
... Mechanical damage to leaf tissue causes an increase in abscisic acid (ABA) which in turn activates the biosynthesis of jasmonic acid (JA). The resulting higher endogenous JA levels subsequently activate the expression of wound-inducible genes. This study shows that JA induces the expression of different sets of genes in roots and leaves of potato plants. When roots of intact plants were treated wi ...
DOI:
10.1046/j.1365-313X.1997.11040773.x
PubMed:
9161035

4. An immunoreactive protein to wheat-germ agglutinin antibody is induced in oat roots following invasion of the cereal cyst nematode Heterodera avenae, and by jasmonate

Author:
Oka, Y.; Chet, I.; Spiegel, Y.
Source:
Molecular plant-microbe interactions 1997 v.10 no.8 pp. 961-969
ISSN:
0894-0282
Subject:
Arabidopsis thaliana; abscisic acid; immunohistochemistry; jasmonic acid; linoleate 13S-lipoxygenase; Heterodera avenae; amino acid sequences; pathogenesis; Avena sativa; abiotic stress; agglutinins; Populus; molecular weight; roots; enzyme activity; infection; chitinase
Abstract:
... A protein that cross-reacts to a wheat-germ agglutinin antibody was induced in oat roots following the invasion of second-stage juveniles (J2) of the cereal cyst nematode Heterodera avenae. This protein, designated ASP45, was acid soluble, and its molecular mass was about 45 kDa on a sodium dodecyl sulfate-polyacrylamide gel. ASP45 was induced in both compatible and incompatible interactions betwe ...
DOI:
10.1094/MPMI.1997.10.8.961
PubMed:
9353943

5. Differential induction of lipoxygenase isoforms in wheat upon treatment with rust fungus elicitor, chitin oligosaccharides, chitosan, and methyl jasmonate

Author:
Bohland, C.; Balkenhohl, T.; Loers, G.; Feussner, I.; Grambow, H.J.
Source:
Plant physiology 1997 v.114 no.2 pp. 679-685
ISSN:
0032-0889
Subject:
protein synthesis; dose response; chitosan; seedlings; jasmonic acid; linoleate 13S-lipoxygenase; Puccinia graminis; Triticum aestivum; leaves; plant pathogenic fungi; oligosaccharides; chitin; enzyme activity; isozymes; protein composition
Abstract:
... A glycopeptide elicitor prepared from germ tubes of the rust fungus Puccinia graminis Pers. f. sp. tritici Erikss. & Henn (Pgt),as well as chitin oligosaccharides, chitosan, and methyl jasmonate (MJ) stimulated lipoxygenase (LOX) activity (E.C. 1.13.11.12) in wheat (Triticum aestivum) leaves. Immunoblot analysis using anti-LOX antibodies revealed the induction of 92- and 103-kD LOX species after P ...

6. Dinor-oxo-phytodienoic acid: a new hexadecanoid signal in the jasmonate family

Author:
Weber, H.; Vick, B.A.; Farmer, E.E.
Source:
Proceedings of the National Academy of Sciences of the United States of America 1997 v.94 no.19 pp. 10473-10478
ISSN:
0027-8424
Subject:
Arabidopsis thaliana; linoleic acid; jasmonic acid; Solanum tuberosum; mechanical damage; oxidation; leaves
Abstract:
... Jasmonic acid and its precursors are potent regulatory molecules in plants. We devised a method for the simultaneous extraction of these compounds from plant leaves to quantitate changes in the levels of jasmonate family members during health and on wounding. During our study, we identified a novel 16-carbon cyclopentenoic acid in leaf extracts from Arabidopsis and potato. The new compound, a memb ...
DOI:
10.1073/pnas.94.19.10473
PubMed:
9294235
PubMed Central:
PMC23387

7. Effect of methyl jasmonate on ethylene and volatile production by summerred apples depends on fruit developmental stage

Author:
Fan, X.; Mattheis, J.P.; Fellman, J.K.; Patterson, M.E.
Source:
Journal of agricultural and food chemistry 1997 v.45 no.1 pp. 208-211
ISSN:
0021-8561
Subject:
apples; ripening; maturity stage; ethylene; jasmonic acid; volatile compounds; ethylene production
Abstract:
... Pre- and postclimacteric Summerred apples (Malus domestica Borkh.) were exposed for 12 h to a low concentration of atmospheric methyl jasmonate. Ethylene and volatile production were measured at harvest and through 15 days at 20 degrees C after treatment. Responses to methyl jasmonate treatment depended on the stage of fruit development. Methyl jasmonate stimulated ethylene, ester, alcohol, and ac ...
DOI:
10.1021/jf9603846

8. Effects of methyl jasmonate on shikonin and dihydroechinofuran production in Lithospermum cell cultures

Author:
Yazaki, K.; Takeda, K.; Tabata, M.
Source:
Plant & cell physiology 1997 v.38 no.7 pp. 776-782
ISSN:
0032-0781
Subject:
Lithospermum erythrorhizon; cell suspension culture; roots; plant pigments; furans; biosynthesis; jasmonic acid; galacturonic acid; chemical reactions; biochemical pathways; metabolites; copper; ions; enzyme activity; transferases
Abstract:
... Methyl jasmonate, when administered to Lithospermum erythrorhizon cell suspension cultures, was found to induce the production of shikonin derivatives (the red naphthoquinone pigments of the root) and dihydroechinofuran (an abnormal metabolite of geranylhydroquinone). Culture experiments showed that methyl jasmonate caused a rapid increase in the activities of enzymes involved in the biosynthesis ...
DOI:
10.1093/oxfordjournals.pcp.a029235

9. Enzymes of octadecanoid biosynthesis in plants: 12-oxo-phytodienoate 10,11-reductase

Author:
Schaller, F.; Weiler, E.W.
Source:
European journal of biochemistry 1997 v.245 no.2 pp. 294-299
ISSN:
0014-2956
Subject:
Capnoides sempervirens; NAD (coenzyme); NADP (coenzyme); abscisic acid; alpha-linolenic acid; beta oxidation; biosynthesis; cell suspension culture; cis-trans isomers; cyclohexanones; derivatization; enzymes; gas chromatography-mass spectrometry; herbivores; jasmonic acid; molecular weight; morphogenesis; nuclear magnetic resonance spectroscopy; octanoic acid; pathogens; progesterone; steroids; testosterone
Abstract:
... Octadecanoids, potent cyclic plant signaling molecules derived from alpha-linolenic acid, are involved in the regulation of a multitude of physiological processes such as senescence, herbivore and pathogen defense, mechanoperception and morphogenesis. The first cyclic intermediate in the Vick-Zimmerman pathway of octadecanoid biosynthesis is 12-oxo-phytodienoic acid. Its conversion to the end prod ...
DOI:
10.1111/j.1432-1033.1997.t01-1-00294.x
PubMed:
9151956

10. Exogenous jasmonic and abscisic acids act differentially in elongating tissues from oat stem segments

Author:
Montague, M.J.
Source:
Journal of plant growth regulation 1997 v.16 no.1 pp. 11-19
ISSN:
0721-7595
Subject:
dose response; cell growth; jasmonic acid; kinetics; internodes; Avena sativa; length; abscisic acid
Abstract:
... Segments can be cut from the peduncular-1 internode of oat (Avena sativa L.) shoots so as to contain the graviresponsive, auxin-sensitive leaf sheath pulvinus, and the gibberellin-sensitive internodal tissue. These two growth-capable tissues were used to study the effects and interactions of jasmonic acid (JA) and abscisic acid (ABA) in regulating cell elongation. When supplied alone at physiologi ...
DOI:
10.1007/PL00006969

11. Expression of ACC oxidase promoter-GUS fusions in tomato and Nicotiana plumbaginifolia regulated by developmental and environmental stimuli

Author:
Blume, B.; Grierson, D.
Source:
plant journal 1997 v.12 no.4 pp. 731-746
ISSN:
0960-7412
Subject:
ethylene; pericarp; seedlings; Nicotiana plumbaginifolia; promoter regions; Passalora fulva; Tobacco mosaic virus; jasmonic acid; gene expression; mechanical damage; petioles; multigene family; oxygenases; infection; messenger RNA; abscission; enzyme activity; histochemistry; Solanum lycopersicum var. lycopersicum; transgenic plants; Erysiphe; flowers; ripening; reporter genes; beta-glucuronidase
Abstract:
... The enzyme ACC oxidase, catalysing the last step in the biosynthesis of the plant hormone ethylene, is encoded by a small multigene family in tomato, comprising three members, LEACO1, LEACO2 and LEACO3. LEACO1 is the major gene expressed during ripening, leaf senescence, and wounding (Barry et al., 1996). To investigate the transcriptional regulation of ACC oxidase gene expression, chimeric fusion ...
DOI:
10.1046/j.1365-313X.1997.12040731.x
PubMed:
9375389

12. Expression of the ribosome-inactivating protein JIP60 from barley in transgenic tobacco leads to an abnormal phenotype and alterations on the level of translation

Author:
Gorschen, E.; Dunaeva, M.; Hause, B.; Reeh, I.; Wasternack, C.; Parthier, B.
Source:
Planta 1997 v.202 no.4 pp. 470-478
ISSN:
0032-0935
Subject:
plant development; messenger RNA; protein synthesis; immunochemistry; phenotype; Hordeum vulgare; transgenic plants; jasmonic acid; meristems; internodes; vacuoles; ribosomes; gene expression; microsomes; protein synthesis inhibitors; Nicotiana tabacum; mesophyll; roots; leaves; plant proteins
Abstract:
... In this paper we report the in-planta activity of the ribosome-inactivating protein JIP60, a 60-kDa jasmonate-induced protein from barley (Hordeum vulgare L.), in transgenic tobacco (Nicotiana tabacum L.) plants. All plants expressing the complete JIP60 cDNA under the control of the cauliflower mosaic virus (CaMV) 35S promoter exhibited conspicuous and similar phenotypic alterations, such as slowe ...
DOI:
10.1007/s004250050151

13. Gene-expression patterns and levels of jasmonic acid in rice treated with the resistance inducer 2,6-dichloroisonicotinic acid

Author:
Schweizer, P.; Buchala, A.; Metraux, J.P.
Source:
Plant physiology 1997 v.115 no.1 pp. 61-70
ISSN:
0032-0889
Subject:
pathogenesis-related proteins; protein synthesis; dose response; quantitative analysis; Oryza sativa; jasmonic acid; linoleate 13S-lipoxygenase; Pseudomonas syringae; pathogenicity; gene expression; plant pathogenic fungi; disease resistance; genes; Magnaporthe grisea; chemical constituents of plants; niacin; enzyme activity; leaves
Abstract:
... Acquired disease resistance can be induced in rice (Oryza sativa) by a number of synthetic or natural compounds, but the molecular mechanisms behind the phenomenon are poorly understood. One of the synthetic inducers of resistance, 2,6-dichloroisonicotinic acid (INA), efficiently protected rice leaves from infection by the rice blast fungus Magnaporthe grisea (Hebert) Barr. A comparison of gene-ex ...

14. Herbivory and caterpillar regurgitants amplify the wound-induced increases in jasmonic acid but not nicotine in Nicotiana sylvestris

Author:
McCloud, E.S.; Baldwin, I.T.
Source:
Planta 1997 v.203 no.4 pp. 430-435
ISSN:
0032-0935
Subject:
Nicotiana sylvestris; mechanical damage; jasmonic acid; nicotine; Manduca sexta; larvae; roots; excreta; herbivores; chemical constituents of plants
Abstract:
... Both herbivory and mechanical damage result in increases in the concentration of the wound-signal molecule, jasmonic acid (JA), and the defense metabolite, nicotine, in native tobacco plants, Nicotiana sylvestris Speg. et Comes (Solanaceae). We found that higher concentrations of JA resulted from herbivory by Manduca sexta (L.) larvae than from the mechanical damage designed to mimic the herbivory ...
DOI:
10.1007/s004250050210

15. Identification of a methyl jasmonate-responsive region in the promoter of a lipoxygenase 1 gene expressed in barley grain

Author:
Rouster, J.; Leah, R.; Mundy, J.; Cameron-Mills, V.
Source:
plant journal 1997 v.11 no.3 pp. 513-523
ISSN:
0960-7412
Subject:
seed germination; transcription factors; messenger RNA; seeds; Hordeum vulgare; open reading frames; jasmonic acid; linoleate 13S-lipoxygenase; defense mechanisms; gene expression; chromosome mapping; mechanical damage; promoter regions; leaves; seed development
Abstract:
... A genomic DNA fragment was isolated containing 5' upstream sequences and part of the open reading frame corresponding to the lipoxygenase 1 cDNA (LoxA) expressed in barley grains during development and germination. Lox1 transcription was shown to be methyl jasmonate (MeJA)- and wound-inducible in leaves, but Lox1 transcripts were not detected in mildew-infected leaves, although this is a commonly ...
DOI:
10.1046/j.1365-313X.1997.11030513.x
PubMed:
9107039

16. Importance of the chiral centers of jasmonic acid in the responses of plants. Activities and antagonism between natural and synthetic analogs

Author:
Holbrook, L.; Tung, P.; Ward, K.; Reid, D.M.; Abrams, S.; Lamb, N.; Quail, J.W.; Moloney, M.M.
Source:
Plant physiology 1997 v.114 no.2 pp. 419-428
ISSN:
0032-0889
Subject:
Helianthus annuus; Brassica napus; measurement; chemical degradation; dose response; jasmonic acid; gene expression; Triticum aestivum; Nicotiana tabacum; esters; stereochemistry; enzyme activity; chemical structure; seed germination; transgenic plants; cotyledons; proteinase inhibitors; reporter genes; chemical constituents of plants; chlorophyll; beta-glucuronidase
Abstract:
... The importance of the two chiral centers at C-3 and C-7 in the molecular structure of jasmonic acid in plant responses was investigated. We separated methyl jasmonate (MeJA) into (3R)- and (3S)-isomers with a fixed stereochemistry at C-3, but epimerization at C-7 is possible. The four isomers of the nonepimerizable analog 7-methyl MeJA were synthesized. These six esters and their corresponding aci ...

17. Induction of 12-oxo-phytodienoic acid in wounded plants and elicited plant cell cultures

Author:
Parchmann, S.; Gundlach, H.; Mueller, M.J.
Source:
Plant physiology 1997 v.115 no.3 pp. 1057-1064
ISSN:
0032-0889
Subject:
Agrostis capillaris; Mahonia; Tinospora cordifolia; Phaseolus vulgaris; Rauvolfia serpentina; cell suspension culture; plant pathogens; disease resistance; phytoalexins; biosynthesis; secondary metabolites; jasmonic acid; linolenic acid; protein synthesis; quantitative analysis; gene expression; stress response
Abstract:
... Jasmonic acid (JA) is rapidly biosynthesized from alpha-linolenic acid in plants upon contact with pathogens or wounding, and triggers gene activation, leading to the synthesis of defensive secondary metabolites and proteins. Despite the recent finding that its precursor, 12-oxo-phytodienoic acid (PDA), is a more powerful inducer of gene activation, interest has focused so far almost exclusively o ...
PubMed:
9390438
PubMed Central:
PMC158569

18. Jasmonate is essential for insect defense in Arabidopsis

Author:
McConn, M.; Creelman, R.A.; Bell, E.; Mullet, J.E.; Browse, J.
Source:
Proceedings of the National Academy of Sciences of the United States of America 1997 v.94 no.10 pp. 5473-5477
ISSN:
0027-8424
Subject:
Arabidopsis thaliana; Sciaridae; insect pests; larvae; defense mechanisms; jasmonic acid; mutants; linolenic acid; gene expression; messenger RNA; phenylalanine ammonia-lyase; acid phosphatase; glutathione transferase; mechanical damage; methyl jasmonate
Abstract:
... The signaling pathways that allow plants to mount defenses against chewing insects are known to be complex. To investigate the role of jasmonate in wound signaling in Arabidopsis and to test whether parallel or redundant pathways exist for insect defense, we have studied a mutant (fad3-2fad7-2fad8) that is deficient in the jasmonate precursor linolenic acid. Mutant plants contained negligible leve ...
DOI:
10.1073/pnas.94.10.5473
PubMed:
11038546
PubMed Central:
PMC24703

19. Jasmonate-inducible genes are activated in rice by pathogen attack without a concomitant increase in endogenous jasmoni c acid levels

Author:
Schweizer, P.; Buchala, A.; Silverman, P.; Seskar, M.; Raskin, I.; Metraux, J.P.
Source:
Plant physiology 1997 v.114 no.1 pp. 79-88
ISSN:
0032-0889
Subject:
Oryza sativa; Magnaporthe grisea; plant pathogenic fungi; disease resistance; genes; gene expression; jasmonic acid; stearic acid; pathogenesis-related proteins
Abstract:
... The possible role of the octadecanoid signaling pathway with jasmonic acid (JA) as the central component in defense-gene regulation of pathogen-attacked rice was studied. Rice (Oryza sativa L.) seedlings were treated with JA or inoculated with the rice blast fungus Magnaporthe grisea (Hebert) Barr., and gene-expression patterns were compared between the two treatments. JA application induced the a ...

20. Jasmonates induce intracellular alkalinization and closure of Paphiopedilum guard cells

Author:
Gehring, C.A.; Irving, H.R.; McConchie, R.; Parish, R.W.
Source:
Annals of botany 1997 v.80 no.4 pp. 485-489
ISSN:
0305-7364
Subject:
Paphiopedilum; jasmonic acid; stomata; guard cells; alkalinity; stomatal movement; pH; propionic acid; cytosol; methyl jasmonate
Abstract:
... Jasmonates (jasmonic acid or methyl jasmonate) promote stomatal closure in Paphiopedilum Supersuk (RHS, 1973) and P. tonsum (Rchb.f) Stein. Studies on guard cells loaded with pH dependent fluorescent dyes show that jasmonates cause intracellular alkalinization of up to 0.5 pH units within 5 to 15 min. Jasmonate-induced alkalinization always preceded stomatal closure and where alkalinization was no ...
DOI:
10.1006/anbo.1997.0471

21. Jasmonic acid-dependent and -independent signaling pathways control wound-induced gene activation in Arabidopsis thaliana

Author:
Titarenko, E.; Rojo, E.; Leon, J.; Sanchez-Serrano, J.J.
Source:
Plant physiology 1997 v.115 no.2 pp. 817-826
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Solanum tuberosum; Solanum lycopersicum var. lycopersicum; mechanical damage; abiotic stress; gene expression; jasmonic acid; abscisic acid; biochemical pathways; genes; proteinase inhibitors; messenger RNA; mutants; genetic variation; clones; genetic markers; transcription (genetics); stress response
Abstract:
... Plant response to mechanical injury includes gene activation both at the wound site and systemically in nondamaged tissues. The model developed for the wound-induced activation of the proteinase inhibitor II (Pin2) gene in potato (Solanum tuberosum) and tomato (Lycopersicon esculentum) establishes the involvement of the plant hormones abscisic acid and jasmonic acid (IA) as key components of the w ...
PubMed:
9342878
PubMed Central:
PMC158541

22. Methyl jasmonate exposure induces insect resistance in cabbage and tobacco

Author:
Avdiushko, S.A.; Brown, G.C.; Dahlaman, D.L.; Hildebrand, D.F.
Source:
Environmental entomology 1997 v.26 no.3 pp. 642-654
ISSN:
0046-225X
Subject:
Trichoplusia ni; Manduca sexta; jasmonic acid; enzyme activity; linoleate 13S-lipoxygenase; Nicotiana tabacum; feeding behavior; induced resistance; biological development; Brassica oleracea; pest resistance; aldehydes
Abstract:
... The effect of methyl jasmonate treatment of 2 plant species (cabbage and tobacco) on the feeding of their corresponding lepidopteran pests was studied. Treatment of cabbage and tobacco ants with methyl jasmonate increased lipoxygenase activity in the leaf tissues. Reduced feeding of lepidopteran larvae was observed in choice test experiments with cabbage loopers and tobacco hornworms. Similar resu ...
DOI:
10.1093/ee/26.3.642

23. Methyl jasmonate induces an O-methyltransferase in barley

Author:
Lee, J.E.; Vogt, T.; Hause, B.; Lobler, M.
Source:
Plant & cell physiology 1997 v.38 no.7 pp. 851-862
ISSN:
0032-0781
Subject:
inflorescences; genes; roots; stems; Hordeum vulgare; methylation; jasmonic acid; clones; gene expression; cell wall components; leaves; protein composition; messenger RNA; complementary DNA; amino acid sequences; transcription (genetics); enzyme activity; lignin; ferulic acid; biosynthesis; caffeic acid; stress response; biochemical pathways; transferases
Abstract:
... We have previously described a truncated cDNA clone for a barley (Hordeum vulgare L. cv. Salome) jasmonate regulated gene, JRG5, which shows homology to caffeic acid O-methyltransferase (COMT). A cDNA encompassing the coding region was amplified by PCR and cloned for overexpression in E. coli. Western blot analyses indicate that the recombinant protein crossreacts with the antibodies directed agai ...
DOI:
10.1093/oxfordjournals.pcp.a029244
PubMed:
9297848

24. Methyl jasmonates in developing strawberry fruit (Fragaria ananassa Duch. Cv. Kent)

Author:
Gansser, D.; Latza, S.; Berger, R.G.
Source:
Journal of agricultural and food chemistry 1997 v.45 no.7 pp. 2477-2480
ISSN:
0021-8561
Subject:
strawberries; plant growth substances; jasmonic acid; flavor compounds
Abstract:
... Two isomeric methyl jasmonates were isolated from extracts of strawberry fruit (Fragaria ananassa Duch. cv. Kent) by means of micropreparative gas chromatography. Enantiomeric separation and comparison with reference compounds allowed the determination of their absolute configuration as (3R,7S)-(+)-methyl epi-jasmonate and (3R,7R)(-)-methyl jasmonate, respectively. Their genuine content in fruit w ...
DOI:
10.1021/jf9608940

25. Nitrogen and hormonal responsiveness of the 22 kDa alpha-zein and b-32 genes in maize endosperm is displayed in the absence of the transcriptional regulator Opaque-2

Author:
Muller, M.; Dues, G.; Balconi, C.; Salamini, F.; Thompson, R.D.
Source:
plant journal 1997 v.12 no.2 pp. 281-291
ISSN:
0960-7412
Subject:
Zea mays; protein synthesis; messenger RNA; biolistics; nitrogen; jasmonic acid; plasmid vectors; transcription (genetics); gene expression; endosperm; reporter genes; abscisic acid; homozygosity; molecular weight; zein; promoter regions; tissue culture
Abstract:
... The maize (Zea mays L.) b-ZIP transcriptional activator Opaque-2(O2)regulates the synthesis of major endosperm proteins. In the o2 homozygote, 22 kDa zein prolamins and the b-32 ribosome-inactivating protein are greatly reduced in level. An in vitro endosperm culture system has been studied in which o2 endosperm synthesizes 22 kDa zein and b-32 in response to nitrogen supplements. An increase in 2 ...
DOI:
10.1046/j.1365-313X.1997.12020281.x
PubMed:
9301081

26. Pre-activating wounding response in tobacco prior to high-level ozone exposure prevents necrotic injury

Author:
Orvar, B.L.; McPherson, J.; Ellis, B.E.
Source:
plant journal 1997 v.11 no.2 pp. 203-212
ISSN:
0960-7412
Subject:
Nicotiana tabacum; ozone; mechanical damage; jasmonic acid; transgenic plants; salicylic acid; messenger RNA; ascorbate oxidase; gene expression; carbonate dehydratase; necrosis; environmental exposure
Abstract:
... In tobacco, both wounding and treatment with jasmonates prior to exposure of the tissue to high concentrations of ozone (250 to 500 p.p.b.) produce a dramatic decrease in ozone injury. A systemic pattern of increased ozone tolerance developed within 3-6 h after wounding and also after local application of jasmonates. Ozone treatment of transgenic (NahG) tobacco plants showed that the inability of ...
DOI:
10.1046/j.1365-313X.1997.11020203.x
PubMed:
9076988

27. Purification and characterization of allene oxide cyclase from dry corn seeds

Author:
Ziegler, J.; Hamberg, M.; Miersch, O.; Parthier, B.
Source:
Plant physiology 1997 v.114 no.2 pp. 565-573
ISSN:
0032-0889
Subject:
allene; Zea mays; biosynthesis; seeds; chemical reactions; catalytic activity; jasmonic acid; long chain fatty acids; physicochemical properties; enzyme inhibitors; isomerases; biochemical pathways; oxides; protein composition
Abstract:
... Allene oxide cyclase (AOC; EC 5.3.99.6) catalyzes the cyclization of 12,13(S)-epoxy-9(Z),11,15(Z)-octadecatrienoic acid to 12-oxo-10,15(Z)-phytodienoic acid, the precursor of jasmonic acid (JA). This soluble enzyme was purified 2000-fold from dry corn (Zea mays L.) kernels to apparent homogeneity. The dimeric protein has a molecular mass of 47 kD. Allene oxide cyclase activity was not affected by ...

28. Quantification, correlations and manipulations of wound-induced changes in jasmonic acid and nicotine in Nicotiana sylvestris

Author:
Baldwin, I.T.; Zhang, Z.P.; Diab, N.; Ohnmeiss, T.E.; McCloud, E.S.; Lynds, G.Y.; Schmelz, E.A.
Source:
Planta 1997 v.201 no.4 pp. 397-404
ISSN:
0032-0935
Subject:
Nicotiana sylvestris; jasmonic acid; nicotine; biosynthesis; roots; leaves; mechanical damage; shoots; quantitative analysis; salicylic acids; translocation (plant physiology); indole acetic acid; methyl salicylate
Abstract:
... Jasmonic acid (JA) is thought to be part of a signal-transduction pathway which dramatically increases de-novo nicotine synthesis in the roots and increases whole-plant (WP) nicotine pools in response to the wounding of the leaves in Nicotiana sylvestris-Spegazzini and Comes (Solanaceae). We report the synthesis of a doubly labeled JA ([1, 2-13C]JA) and use it as an internal standard to quantify b ...
DOI:
10.1007/s004250050082

29. Regulation of sesquiterpene cyclase gene expression. Characterization of an elicitor- and pathogen-inducible promoter

Author:
Yin, S.; Mei, L.; Newman, J.; Back, K.; Chappell, J.
Source:
Plant physiology 1997 v.115 no.2 pp. 437-451
ISSN:
0032-0889
Subject:
sesquiterpenoids; plant pathogenic fungi; salicylic acid; promoter regions; jasmonic acid; hydrogen peroxide; gene expression; Nicotiana tabacum; histology; transcription (genetics); pathogenicity; Phytophthora nicotianae var. parasitica; enzyme activity; genetic transformation; gene transfer; biosynthesis; plant anatomy; transgenic plants; Pseudomonas syringae pv. syringae; reporter genes; beta-glucuronidase
Abstract:
... The promoter for a tobacco (Nicotiana tabacum) sesquiterpene cyclase gene, a key regulatory step in sesquiterpene phytoalexin biosynthesis, has been analyzed. The EAS4 promoter was fused to the beta-glucuronidase (GUS) reporter gene, and the temporal and spatial expression patterns of GUS activity were examined in stably transformed plants and in transient expression assays using electroporated pr ...
PubMed:
9342864
PubMed Central:
PMC158501

30. Regulation of the wound-induced myrosinase-associated protein transcript in Brassica napus plants

Author:
Taipalensuu, J.; Andreasson, E.; Eriksson, S.; Rask, L.
Source:
European journal of biochemistry 1997 v.247 no.3 pp. 963-971
ISSN:
0014-2956
Subject:
1-aminocyclopropane-1-carboxylic acid; Arabidopsis thaliana; Brassica napus; abscisic acid; clones; complementary DNA; ethylene; glucosinolates; hydrolysis; in situ hybridization; jasmonic acid; leaves; methyl jasmonate; salicylic acid; thioglucosidase
Abstract:
... Two slightly differing cDNA clones corresponding to the wound-inducible form of a previously characterized seed myrosinase-associated protein (MyAP) have been isolated from Brassica napus L. The transcripts corresponding to the induced MyAP (iMyAP) were found to be developmentally regulated in various vegetative organs. Both young and old leaves exhibited wound-inducible iMyAP expression. Furtherm ...
DOI:
10.1111/j.1432-1033.1997.00963.x
PubMed:
9288921

31. Seed lipoxygenase products modulate Aspergillus mycotoxin biosynthesis

Author:
Burow, G.B.; Nesbitt, T.C.; Dunlap, J.; Keller, N.P.
Source:
Molecular plant-microbe interactions 1997 v.10 no.3 pp. 380-387
ISSN:
0894-0282
Subject:
sterigmatocystin; Aspergillus parasiticus; Aspergillus nidulans; biosynthesis; linoleic acid; messenger RNA; seeds; Glycine max; jasmonic acid; linoleate 13S-lipoxygenase; aflatoxin B1; methyl jasmonate; gene expression; genes; enzyme activity; defense mechanisms
Abstract:
... Oilseed crops are frequently subject to contamination by mycotoxins produced by Aspergillus spp., particularly aflatoxin (AF) and to a lesser extent sterigmatocystin (ST). Several studies have suggested that metabolites generated from the plant lipoxygenase (LOX) pathway may either decrease or increase mycotoxin production by Aspergillus spp. We tested the possibility that the occurrence of seed L ...
DOI:
10.1094/MPMI.1997.10.3.380

32. Stomatal responses to jasmonic acid, linolenic acid and abscisic acid in wild-type and ABA-deficient tomato plants

Author:
Herde, O.; Pena-Cortes, H.; Willmitzer, L.; Fisahn, J.
Source:
Plant, cell and environment 1997 v.20 no.1 pp. 136-141
ISSN:
0140-7791
Subject:
Solanum lycopersicum var. lycopersicum; transpiration; photosynthesis; gas exchange; carbon dioxide; jasmonic acid; linolenic acid; abscisic acid; mutants; stomatal movement
Abstract:
... Wild-type and abscisic acid (ABA) -deficient (sitiens) tomato plants were used to analyse the effects of abscisic acid (ABA), butyric acid (BA), jasmonic acid (JA) and linolenic acid (LA) on assimilation and transpiration rates in detached leaves taking up those substances into the transpiration stream. BA did not affect assimilation and transpiration rates. ABA decreased assimilation and transpir ...
DOI:
10.1046/j.1365-3040.1997.d01-11.x

33. Temporal pattern of jasmonate-induced alterations in gene expression of barley leaves

Author:
Reinbothe, C.; Parthier, B.; Reinbothe, S.
Source:
Planta 1997 v.201 no.3 pp. 281-287
ISSN:
0032-0935
Subject:
Hordeum vulgare; leaves; jasmonic acid; gene expression; ribosomes; plant proteins; inactivation; genes; ribulose-bisphosphate carboxylase; messenger RNA; temporal variation; light harvesting complex
Abstract:
... Leaf tissues of barley (Hordeum vulgare L. cv. Salome) respond to methyl jasmonate (JaMe) treatment with a characteristic pattern of gene expression. Jasmonate-induced proteins (JIPs), such as leaf thionins (jip15 gene product) and ribosome-inactivating proteins (jip60 gene product), rapidly accumulate. Their genes are transiently transcriptionally activated, as shown here by the determination of ...
DOI:
10.1007/s004250050067
PubMed:
19343406

34. The effect of jasmonic acid, sucrose and darkness on garlic (Allium sativum L. cv. Ptujski jesenski) bulb formation in vitro

Author:
Zel, J.; Debeljak, N.; Ucman, R.; Ravnikar, M.
Source:
In vitro cellular & developmental biology 1997 v.33 no.3 pp. 231-235
ISSN:
1054-5476
Subject:
Allium sativum; tissue culture; micropropagation; bulbs; shoots; jasmonic acid; sucrose; culture media; isopentenyladenine; explants
DOI:
10.1007/s11627-997-0028-4

35. The jasmonate pathway is involved differentially in the regulation of different defense responses in tobacco cells

Author:
Rickauer, M.; Brodschlem, W.; Bottin, A.; Veronesi, C.; Grimal, H.; Esquerro-Tugaye, M.T.
Source:
Planta 1997 v.202 no.2 pp. 155-162
ISSN:
0032-0935
Subject:
cell wall components; linoleic acid; linolenic acid; glycoproteins; jasmonic acid; linoleate 13S-lipoxygenase; arachidonic acid; biochemical pathways; chitinase; ligases; Nicotiana tabacum; Phytophthora nicotianae var. parasitica; proteinase inhibitors; cell suspension culture; defense mechanisms
Abstract:
... Jasmonic acid, a product of the lipoxygenase (LOX) pathway, has been proposed to be a signal transducer of defence reactions in plants. We have reported previously that methyl jasmonate (MJ) induced accumulation of proteinase inhibitors in tobacco cell suspensions (Rickauer et al., 1992, Plant Physiol Biochem 30: 579-584). The role of this compound in the induction of this and of other defence rea ...
DOI:
10.1007/s004250050114

36. Tomato polyphenol oxidase. Differential response of the polyphenol oxidase F promoter to injuries and wound signals

Author:
Thipyapong, P.; Steffens, J.C.
Source:
Plant physiology 1997 v.115 no.2 pp. 409-418
ISSN:
0032-0889
Subject:
plant pathogenic bacteria; ethylene; developmental stages; plant pathogenic fungi; salicylic acid; cell differentiation; promoter regions; stems; jasmonic acid; gene expression; mechanical damage; disease resistance; leaves; genetic code; catechol oxidase; transcription (genetics); abiotic stress; enzyme activity; Solanum lycopersicum var. lycopersicum; stress response; plant morphology
Abstract:
... Tomato (Lycopersicon esculentum Mill.) polyphenol oxidases (PPOs) are encoded by a seven-member gene family that exhibits complex patterns of differential expression during growth and differentiation. Antisense down-regulation of constitutive and induced PPO expression results in hypersusceptibility to pathogens, suggesting a critical role for PPO-mediated phenolic oxidation in plant defense. Howe ...

37. Tomato prosystemin promoter confers wound-inducible, vascular bundle-specific expression of the beta-glucuronidase gene in transgenic tomato plants

Author:
Jacinto, T.; McGurl, B.; Franceschi, V.; Felano-Freier, J.; Ryan, C.A.
Source:
Planta 1997 v.203 no.4 pp. 406-412
ISSN:
0032-0935
Subject:
Solanum lycopersicum var. lycopersicum; messenger RNA; promoter regions; stems; immunohistochemistry; transgenic plants; jasmonic acid; methyl jasmonate; gene expression; plant veins; mechanical damage; petioles; enzyme activity; beta-glucuronidase; plant proteins
Abstract:
... Tomato (Lycopersicon esculentum Mill. cv. Better Boy) plants were transformed with a fused gene containing a 2.2-kb promoter fragment of the tomato prosystemin gene and the coding region of the beta-glucuronidase (GUS) reporter gene. The transgenic plants exhibited a low constitutive level of prosystemin-beta-glucuronidase gene expression, assayed by histochemical staining and GUS enzyme activity, ...
DOI:
10.1007/s004250050207

38. Transport of [2-14C]jasmonic acid from leaves to roots mimics wound-induced changes in endogenous jasmonic acid pools in Nicotiana sylvestris

Author:
Zhang, Z.P.; Baldwin, I.T.
Source:
Planta 1997 v.203 no.4 pp. 436-441
ISSN:
0032-0935
Subject:
Nicotiana sylvestris; jasmonic acid; nicotine; biosynthesis; biochemical pathways; mechanical damage; roots; leaves; herbivores; metabolites; isotope labeling; translocation (plant physiology)
Abstract:
... Jasmonic acid (JA) is part of a long-distance signal-transduction pathway that effects increases in de-novo nicotine synthesis in the roots of Nicotiana sylvestris Speg et Comes (Solanaceae) after leaf wounding. Elevated nicotine synthesis increases whole-plant nicotine pools and makes plants more resistant to herbivores. Leaf wounding rapidly increases JA pools in damaged leaves, and after a 90-m ...
DOI:
10.1007/s004250050211

39. Tryptophan decarboxylase is encoded by two autonomously regulated genes in Camptotheca acuminata which are differentially expressed during development and stress

Author:
Lopez-Meyer, M.; Nessler, C.L.
Source:
plant journal 1997 v.11 no.6 pp. 1167-1175
ISSN:
0960-7412
Subject:
Camptotheca acuminata; seedlings; alkaloids; stems; jasmonic acid; gene expression; cell wall components; multigene family; amino acid metabolism; defense mechanisms; apical meristems; messenger RNA; complementary DNA; tryptamine; amino acid sequences; carboxy-lyases; seed germination; biosynthesis; monoterpenoids; tryptophan; bark; cell suspension culture; fungi
Abstract:
... Camptothecin (CPT) is a valuable anti-cancer monoterpene alkaloid produced by the Chinese tree Camptotheca acuminata. Tryptophan decarboxylase (TDC) supplies tryptamine for the indole moiety of CPT and its derivatives, and is considered a key step in monoterpene indole alkaloid biosynthesis as it links primary and secondary metabolism. This report describes the isolation and characterization of td ...
DOI:
10.1046/j.1365-313X.1997.11061167.x
PubMed:
9225462

40. Within‐plant relationships among wounding, jasmonic acid, and nicotine implications for defence in Nicotiana sylvestris

Author:
THOMAS E. OHNMEISS; ERIC S. McCLOUD; GLADYS Y. LYNDS; IAN T. BALDWIN
Source:
new phytologist 1997 v.137 no.3 pp. 441-452
ISSN:
0028-646X
Subject:
Nicotiana sylvestris; jasmonic acid; nicotine; mechanical damage; leaves; spatial distribution; defense mechanisms; quantitative analysis; canopy; chemical constituents of plants
Abstract:
... In Nicotiana sylvestris Spegazzini and Comes (Solanaceae), we examined the relationships among wounding, endogenous leaf jasmonic acid (JA) pools, and whole‐plain (WP) nicotine accumulation over a range of wounding intensities and spatial distributions, in order to explore optimal defence (OD) theory predictions. We quantitatively wounded one or four leaves and then quantified: (1) JA in damaged a ...
DOI:
10.1046/j.1469-8137.1997.00845.x