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You searched for: Journal name Plant physiology Remove constraint Journal name: Plant physiology Publication year rev 8003-1997 Remove constraint Publication year rev: 8003-1997 Source 1997 v.115 no.1 Remove constraint Source: 1997 v.115 no.1
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1. Accelerated early growth of rice at elevated CO2. Is it related to developmental changes in the shoot apex?

Author:
Jitla, D.S.; Rogers, G.S.; Seneweera, S.P.; Basra, A.S.; Oldfield, R.J.; Conroy, J.P.
Source:
Plant physiology 1997 v.115 no.1 pp. 15-22
ISSN:
0032-0889
Subject:
plant development; buds; diameter; dose response; carbon dioxide; Oryza sativa; developmental stages; internodes; crop yield; length; tillers; leaves
Abstract:
... The influence of elevated CO2 on the development of the shoot apex and on subsequent vegetative growth and grain yield investigated using rice (Oryza sativa L. cv Jarrah) grown in flooded soil at either 350 or 700 microliter CO2 L-1. At 8 d after planting (DAP), elevated CO2 increased the height and diameter of the apical dome and lengths of leaf primordia and tiller buds but had no effect on thei ...

2. Analysis of cDNA clones encoding sucrose-phosphate synthase in relation to sugar interconversions associated with dehydration in the resurrection plant Craterostigma plantagineum Hochst

Author:
Ingram, J.; Chandler, J.W.; Gallagher, L.; Salamini, F.; Bartels, D.
Source:
Plant physiology 1997 v.115 no.1 pp. 113-121
ISSN:
0032-0889
Subject:
rehydration; biosynthesis; complementary DNA; genetic code; glucose; sucrose; stress response; fructose 6-phosphate; clones; gene expression; amino acid sequences; transcription (genetics); cytoplasm; phosphates; Scrophulariaceae; enzyme activity; sucrose synthase; roots; leaves
Abstract:
... Sucrose-phosphate synthase (SPS) is a key enzyme in the regulation of sucrose metabolism, being responsible for the synthesis of sucrose 6-phosphate from fructose 6-phosphate and uridine 5'-diphosphate-glucose. We report on the isolation and characterization of cDNA clones encoding SPS from Craterostigma plantagineum Hochst., a resurrection plant in which the accumulation of sucrose is considered ...
PubMed:
9306694
PubMed Central:
PMC158466

3. Cloning and subcellular location of an arabidopsis receptor-like protein that shares common features with protein-sorting receptors of eukaryotic cells

Author:
Ahmed, S.U.; Bar-Peled, M.; Raikhel, N.V.
Source:
Plant physiology 1997 v.115 no.1 pp. 311-312
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; genes; nucleotide sequences; binding proteins

4. Cold-resistant and cold-sensitive maize lines differ in the phosphorylation of the photosystem II subunit, CP29

Author:
Mauro, S.; Dainsese, P.; Lannoye, R.; Bassi, R.
Source:
Plant physiology 1997 v.115 no.1 pp. 171-180
ISSN:
0032-0889
Subject:
Zea mays; cold stress; temperature; photosystem II; photoinhibition; phosphorylation; chlorophyll; fluorescence; cooling; light harvesting complex; electron transfer; cold tolerance; stress response
Abstract:
... The effects of low temperature on the relative contributions of the reaction center and the antenna activities to photosystem II (PSII) electron transport were estimated by chlorophyll fluorescence. The inhibition of PSII photochemistry resulted from photodamage to the reaction center and/or a reduced probability of excitation energy trapping by the reaction center. Although chill treatment did no ...

5. Distribution of folate derivatives and enzymes for synthesis for 10-formyltetrahydrofolate in cytosolic and mitochondrial fractions of pea leaves

Author:
Chen, L.F.; Chan, S.Y.; Cossins, E.A.
Source:
Plant physiology 1997 v.115 no.1 pp. 299-309
ISSN:
0032-0889
Subject:
protein content; chemical reactions; dihydrofolate reductase; seedlings; cytosol; biochemical pathways; hydrolases; mitochondria; folic acid; etiolation; Pisum sativum; light; enzyme activity; leaves
Abstract:
... Leaf extracts of 14-d-old pea (Pisum sativum L. cv Homesteader) seedlings were examined for folate derivatives and for 10-formyltetrahydrofolate synthetase (SYN), 5,10-methenyltetrahydrofolate cyclohydrolase (CYC), and 5,10-methylenetetrahydrofolate dehydrogenase (DHY) activities. Microbiological and enzyme assays showed that leaf folates SYN, CYC, and DHY were predominately cytosolic. Extracts of ...

6. Effects of prolonged washing on primary and secondary transport processes at the plasma membrane in red beet storage tissue

Author:
Marvier, A.C.; Williams, L.E.; Leigh, R.A.; Hall, J.L.
Source:
Plant physiology 1997 v.115 no.1 pp. 263-272
ISSN:
0032-0889
Subject:
source-sink relationships; Beta vulgaris; nutrient transport; tunicamycin; metabolism; cordycepin; glucose; nutrient uptake; solutes; adenosinetriphosphatase; beta-fructofuranosidase; hydrolysis; fructose; proton pump; monensin; roots; enzyme activity; washing; cycloheximide
Abstract:
... Changing patterns of enzyme activity and solute transport in response to washing were investigated in red beet (Beta vulgaris L.) storage tissue. Washing had a pronounced effect on the plasma membrane (PM) H+-ATPase with an increase in both hydrolytic and proton-pumping activities. Immunoblotting indicated that this may be due, in part, to a higher amount of this enzyme in the PM of washed tissue. ...

7. Formation of di-isodityrosine and loss of isodityrosine in the cell walls of tomato cell-suspension cultures treated with fungal elicitors or H2O2

Author:
Brady, J.D.; Fry, S.C.
Source:
Plant physiology 1997 v.115 no.1 pp. 87-92
ISSN:
0032-0889
Subject:
Solanum peruvianum; plant pathogenic fungi; hydroxyproline; metabolites; hybrids; hydrogen peroxide; disease resistance; oxidation; cell wall components; Phytophthora megasperma; glycoproteins; Pythium aphanidermatum; quantitative analysis; tyrosine; pathogenicity; chemical structure; Solanum lycopersicum var. lycopersicum; Aureobasidium pullulans; biochemical pathways; cell suspension culture
Abstract:
... About 84% of the hydroxyproline residues in a cell culture of tomato (Lycopersicon esculentum X Lycopersicon peruvianum) were present in phenol-inextractable (i.e. covalently wall-bound) material. Treatment of the cells with any of three fungal elicitors (wall fragments from Phytophthora megasperma and Pythium aphanidermatum and xylanase from Aureobasidium pullulans) or with 1 mM H2O2 had little e ...

8. Growth and N allocation in rice plants under CO2 enrichment

Author:
Makino, A.; Harada, M.; Sato, T.; Nakano, H.; Mae, T.
Source:
Plant physiology 1997 v.115 no.1 pp. 199-203
ISSN:
0032-0889
Subject:
Oryza sativa; leaves; roots; nitrogen; dose response; nutrient uptake; nutrient transport; photoperiod; night temperature; biomass; leaf area index; nitrogen content; carbon dioxide
Abstract:
... The effects of CO2 enrichment on growth and N allocation of rice (Oryza sativa L.) were examined. The plants were grown hydroponically in growth chambers with a 14-h photoperiod (1000 micromole quanta m-2 s-1) and a day/night temperature of 25/20 degrees C. From the 28th to 70th d after germination, the plants were exposed to two CO2 partial pressures, namely 36 and 100 Pa. The CO2 enrichment incr ...

9. Increases in cytosolic Ca2+ in parsley mesophyll cells correlate with leaf senescence

Author:
Huang, F.Y.; Philosoph-Hadas, S.; Meir, S.; Callaham, D.A.; Sabato, R.; Zelcer, A.; Hepler, P.K.
Source:
Plant physiology 1997 v.115 no.1 pp. 51-60
ISSN:
0032-0889
Subject:
image analysis; fluorescence microscopy; calcium; developmental stages; lipid peroxidation; Petroselinum crispum; proteolysis; cytosol; pretreatment; benzyladenine; chemical constituents of plants; mesophyll; chlorophyll
Abstract:
... The ability to maintain the cytoplasmic Ca2+ concentration ([Ca2+]cyt) at homeostatic levels has been examined during leaf senescence in detached parsley (Petroselinum crispum) leaves. Fluorescence ratiometric imaging of mesophyll cells isolated from parsley leaves at various senescence stages and loaded with the Ca2+ indicator fura-2 has revealed a distinct elevation of [Ca2+]cyt, which was posit ...

10. Influence of plant growth at high CO2 concentrations on leaf content of ribulose-1,5-bisphosphate carboxylase/oxygenase and intracellular distribution of soluble carbohydrates in tobacco, snapdragon, and parsley

Author:
Moore, B.d.; Palmquist, D.E.; Seemann, J.R.
Source:
Plant physiology 1997 v.115 no.1 pp. 241-248
ISSN:
0032-0889
Subject:
Nicotiana sylvestris; acclimation; cytosol; vacuoles; mannitol; measurement; carbon dioxide; glucose; starch; fructose; photosynthesis; mesophyll; sucrose; net assimilation rate; enzyme activity; Antirrhinum majus; ribulose-bisphosphate carboxylase; Petroselinum; diurnal variation; chemical constituents of plants; chloroplasts
Abstract:
... We have examined the possible role of leaf cytosolic hexoses and the expression of mannitol metabolism as mechanisms that may affect the repression of photosynthetic capacity when plants are grown at 1000 versus 380 microliter L-1 CO2. In plants grown at high CO2, leaf ribulose-1,5-bisphosphate carboxylase/oxygenase content declined by greater than or equal to 20% in tobacco (Nicotiana sylvestris) ...

11. Molecular cloning and further characterization of a portable plant vacuolar sorting receptor

Author:
Paris, N.; Rogers, S.W.; Jiang, L.W.; Kirsch, T.; Beevers, L.; Phillips, T.E.; Rogers, J.C.
Source:
Plant physiology 1997 v.115 no.1 pp. 29-39
ISSN:
0032-0889
Subject:
Oryza sativa; vacuoles; cell membranes; genes; Pisum sativum; proline; binding proteins; gene expression; Nicotiana tabacum; protein composition; Arabidopsis thaliana; Zea mays; complementary DNA; arginine; amino acid sequences; isoleucine; immunocytochemistry; Golgi apparatus; asparagine; cell suspension culture
Abstract:
... BP-80 is a type I integral membrane protein abundant in pea (Pisum sativum) clathrin-coated vesicles (CCVs) that binds with high affinity to vacuole-targeting determinants containing asparagine-proline-isoleucine-arginine. Here we present results from cDNA cloning and studies of its intracellular localization. Its sequence and sequences of homologs from Arabidopsis, rice (Oryza sativa), and maize ...

12. Phosphorylation by a cyclin-dependent kinase modulates DNA binding of the Arabidopsis heat-shock transcription factor HSF1 in vitro

Author:
Reindl, A.; Schoffl, F.; Schell, J.; Koncz, C.; Bako, L.
Source:
Plant physiology 1997 v.115 no.1 pp. 93-100
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; heat shock proteins; DNA; physicochemical properties; transcription (genetics); binding sites; phosphorylation; enzyme activity; cell cycle; cell suspension culture; protein composition
Abstract:
... Phosphorylation is one of the mechanisms controlling the activity of heat-shock transcription factors in yeast and mammalian cells. Here we describe partial purification, identification, and characterization of a protein kinase that phosphorylates the Arabidopsis heat-shock factor AtHSF1 at multiple serine residues. The HSF1 kinase forms a stable complex with AtHSF1, which can be detected by kinas ...
PubMed:
9306693
PubMed Central:
PMC158464

13. Physical and kinetic evidence for an association between sucrose-phosphate synthase and sucrose-phosphate phosphatase

Author:
Echeverria, E.; Salvucci, M.E.; Gonzalez, P.; Paris, G.; Salerno, G.
Source:
Plant physiology 1997 v.115 no.1 pp. 223-227
ISSN:
0032-0889
Subject:
Spinacia oleracea; Oryza sativa; leaves; sucrose; phosphates; biosynthesis; hydrolysis; sucrose synthase; phosphoric monoester hydrolases; enzyme activity; measurement; kinetics; enzyme inhibitors
Abstract:
... The possible formation of a multienzyme complex between sucrose (Suc)-phosphate synthase (SPS) and Suc-phosphate phosphatase (SPP) was examined by measuring the rates of Suc-6-phosphate (Suc-6-P)synthesis and hydrolysis in mixing experiments with partially purified enzymes from spinach (Spinacia oleracea) and rice (Oryza sativa) leaves. The addition of SPP to SPS stimulated the rate of Suc-6-P syn ...

14. Pollination-induced ethylene in carnation. Role of stylar ethylene in corolla senescence

Author:
Jones, M.L.; Woodson, W.R.
Source:
Plant physiology 1997 v.115 no.1 pp. 205-212
ISSN:
0032-0889
Subject:
pollination; plant development; 1-aminocyclopropane-1-carboxylic acid; ethylene; gynoecium; biosynthesis; quantitative analysis; corolla; oxidoreductases; Dianthus caryophyllus; 1-aminocyclopropane-1-carboxylate synthase; enzyme activity; pollen; diazo compounds
Abstract:
... In carnation (Dianthus caryophyllus L. cv White Sim) cell to cell communication between the pollen and pistil induces ovary development and corolla senescence. The production of elevated ethylene by the style is the first measurable postpollination response. This is followed by a wave of ethylene production from the other floral organs. To investigate the regulation of ethylene biosynthesis in pol ...

15. Reduced lignin content and altered lignin composition in transgenic tobacco down-regulated in expression of L-phenylalanine ammonia-lyase or cinnamate 4-hydroxylase

Author:
Sewalt, V.J.H.; Ni, W.T.; Blount, J.W.; Jung, H.G.; Masoud, S.A.; Howles, P.A.; Lamb, C.; Dixon, R.A.
Source:
Plant physiology 1997 v.115 no.1 pp. 41-50
ISSN:
0032-0889
Subject:
biosynthesis; phenylalanine ammonia-lyase; stems; chemical reactions; transgenic plants; biochemical pathways; cinnamic acid; gene expression; histochemistry; Nicotiana tabacum; genes; phenylalanine; chemical constituents of plants; enzyme activity; lignin; oxygenases
Abstract:
... We analyzed lignin content and composition in transgenic tobacco (Nicotiana tabacum) lines altered in the expression of the early phenylpropanoid biosynthetic enzymes L-phenylalanine ammonia-lyase and cinnamate 4-hydroxylase (C4H). The reduction of C4H activity by antisense expression or sense suppression resulted in reduced levels of Klason lignin, accompanied by a decreased syringyl/guaiacyl mon ...

16. Regulation and tissue-specific distribution of mRNAs for three extracellular invertase isoenzymes of tomato suggests an important function in establishing and maintaining sink metabolism

Author:
Godt, D.E.; Roitsch, T.
Source:
Plant physiology 1997 v.115 no.1 pp. 273-282
ISSN:
0032-0889
Subject:
vacuoles; genes; sucrose synthase; source-sink relationships; gynoecium; cell walls; gene expression; stamens; metabolism; nutrient transport; messenger RNA; genetic code; sucrose; amino acid sequences; beta-fructofuranosidase; enzyme activity; histochemistry; Solanum lycopersicum var. lycopersicum; zeatin; cell suspension culture
Abstract:
... The aim of the present study was to gain insight into the contribution of extracellular invertases for sink metabolism in tomato (Lycopersicon esculentum L.). The present study shows that extra-cellular invertase isoenzymes are encoded by a gene family comprising four members: Lin5, Lin6, Lin7, and Lin8. The regulation of mRNA levels by internal and external signals and the distribution in sink an ...
PubMed:
9306701
PubMed Central:
PMC158483

17. Regulation of growth anisotropy in well-watered and water-stressed maize roots. I. Spatial distribution of longitudinal, radial, and tangential expansion rates

Author:
Liang, B.M.; Sharp, R.E.; Baskin, T.I.
Source:
Plant physiology 1997 v.115 no.1 pp. 101-111
ISSN:
0032-0889
Subject:
Zea mays; seedlings; roots; cortex; stele; water stress; cell growth; cell division; spatial distribution; diameter; root water potential; stress response
Abstract:
... As a system to study the regulation of growth anisotropy, we studied thinning of the primary root of maize (Zea mays L.) occurring developmentally or induced by water stress. Seedlings were transplanted into vermiculite at a water potential of approximately -0.03 MPa (well-watered) or -1.6 MPa (water-stressed). The diameter of roots in both treatments decreased with time after transplanting; the w ...

18. Salicylic acid is needed in hypersensitive cell death in soybean but does not act as a catalase inhibitor

Author:
Tenhaken, R.; Rubel, C.
Source:
Plant physiology 1997 v.115 no.1 pp. 291-298
ISSN:
0032-0889
Subject:
metabolism; Glycine max; dose response; catalase; necrosis; hydrogen peroxide; virulence; enzyme inhibitors; cultured cells; genes; salicylic acid; oxidation; disease resistance; Pseudomonas syringae pv. glycinea; peroxidase; metabolites; ascorbic acid
Abstract:
... The function of salicylic acid (SA) in hypersensitive cell death was studied in a soybean (Glycine max)-Pseudomonas syringae pv glycinea system. The infection of cell cultures with bacteria leads to a hypersensitive reaction (HR), which is dependent on an appropriate avirulence gene and on low concentrations of SA. The requirements for SA is essential for a process shortly before the onset of the ...

19. Seed and hormonal regulation of gibberellin 20-oxidase expression in pea pericarp

Author:
Van Huizen, R.; Ozga, J.A.; Reinecke, D.M.
Source:
Plant physiology 1997 v.115 no.1 pp. 123-128
ISSN:
0032-0889
Subject:
messenger RNA; biosynthesis; pericarp; developmental stages; gibberellic acid; oxidoreductases; gene expression; Pisum sativum; enzyme activity; seed development
Abstract:
... To understand further how seeds, auxin (4-chloroindole-3-acetic acid [4-Cl-IAA]), and gibberellins (GAs) regulate GA biosynthesis in pea (Pisum sativum L.) pericarp at the molecular level, we studied the expression of GA 20-oxidase in this tissue using northern-blot analysis. Pericarp GA 20-oxidase mRNA levels were highest from prepollination (-2 d after anthesis [DAA]) through anthesis (0 DAA), t ...

20. Sugar sensing and sugar-mediated signal transduction in plants

Author:
Smeekens, S.; Rook, F.
Source:
Plant physiology 1997 v.115 no.1 pp. 7-13
ISSN:
0032-0889
Subject:
plant physiology; sugars; biosynthesis; chemical reactions; biochemical pathways; mutants; genetic variation; chemical constituents of plants