Abstract:
:The effects of water stress on nitrate reductase and nitrite reductase activities in symbiotic nodules were examined in field-grown soybean plants (Glycine max L Merr. cv Clark). The in vitro assays of enzyme activity indicated that the nodule cytosol and bacteroids contained both nitrate reductase and nitrite reductase activities. The reduction of nitrate in bacteroids increased significantly as nodule water potential declined from -0.6 to -1.4 megapascals, and then decreased when -1.8 megapascals water potential was reached. On the contrary, the reduction of nitrate in nodule cytosol was inhibited as water stress progressed. Increases in water stress intensity also caused a significant inhibition in nitrite reductase activities of bacteroids and nodule cytosol within soybean nodules. The results show that nitrate reduction occurred both in the cytosol and bacteroids of water-stressed soybean nodules. The reduction of nitrate functioned at different physiological modes in these two fractions.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Chen CL,Sung JMdoi
10.1104/pp.73.4.1065subject
Has Abstractpub_date
1983-12-01 00:00:00pages
1065-6issue
4eissn
0032-0889issn
1532-2548journal_volume
73pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::The levels of activity of 2-phosphoglycolate phosphatase in the green algae, Chlamydomonas reinhardtii and Chlorella vulgaris, were in the range of 37 to 60 micromoles per milligram chlorophyll per hour and in the blue-green algae, Anacystis nidulans and Anabaena variabilis were 204 to 310 micromoles per milligram chl...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.79.2.394
更新日期:1985-10-01 00:00:00
abstract::We have examined the effects of the substituted pyridazinone herbicide, 4-chloro-5-(dimethylamino)-2-phenyl-3(2H)pyridazinone (BASF 13-338, Sandoz 9785), on the desaturation of linoleic acid (18:2) on different molecular species of monogalactosyldiacylglycerol (MGDG) and phosphatidylcholine (PC) in leaf tissue of Arab...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.85.3.684
更新日期:1987-11-01 00:00:00
abstract::A starch deficient mutant of Arabidopsis thaliana (L.) Heynh. has been isolated in which leaf extracts contain only about 5% as much activity of ADPglucose pyrophosphorylase (EC 2.7.7.27) as the wild type. A single, nuclear mutation at a previously undescribed locus designated adg2 is responsible for the mutant phenot...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.88.4.1175
更新日期:1988-12-01 00:00:00
abstract::The degree of tubulin polymerization in cotton (Gossypium hirsutum L. cv Acala) cotyledonary tissue was estimated by radioimmunoassay which measured the amount of a tubulin-like factor. It was assumed that the release of this tubulin-like factor indicated depolymerization of microtubules. Exposure to chilling resulted...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.71.4.747
更新日期:1983-04-01 00:00:00
abstract::With rising food demands, crop production on salinized lands is increasingly necessary. Sunflower (Helianthus annuus), a moderately salt-tolerant crop, exhibits a tradeoff where more vigorous, high-performing genotypes have a greater proportional decline in biomass under salinity stress. Prior research has found devia...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.20.00873
更新日期:2020-10-01 00:00:00
abstract::We found inconsistencies in the commonly used data for chlorophyll analysis in 80% acetone. Recently developed extinction coefficients for chlorophyll b in N,N-dimethylformamide (DMF) based on values from 80% acetone are low as a result of these inconsistencies. We determined extinction coefficients of chlorophyll a (...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.77.2.483
更新日期:1985-02-01 00:00:00
abstract::Using arrays of resistors and capacitors, a lumped circuit analog of plant tissue is developed. The circuit elements of the analog are identified in terms of physiological variables (hydraulic conductivities, water capacities, and cell dimensions) which can be measured in the laboratory. With the aid of a circuit simu...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.64.5.712
更新日期:1979-11-01 00:00:00
abstract::Modulation of intracellular calcium levels plays a key role in the transduction of many biological signals. Here, we characterize early calcium responses of wild-type and mutant Medicago truncatula plants to nodulation factors produced by the bacterial symbiont Sinorhizobium meliloti using a dual-dye ratiometric imagi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.005546
更新日期:2003-03-01 00:00:00
abstract::A radiation-induced mutant of Scotch spearmint (Mentha x gracilis) was shown to produce an essential oil containing principally C3-oxygenated p-menthane monoterpenes that are typical of peppermint, instead of the C6-oxygenated monoterpene family characteristic of spearmint. In vitro measurement of all of the enzymes r...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.96.3.744
更新日期:1991-07-01 00:00:00
abstract::We have determined the levels of photosystem II activity and polypeptide abundance in whole leaves and isolated bundle sheath and mesophyll cells of C(4), "C(4)-like," and C(3) species of the genus Flaveria (Asteraceae). On a chlorophyll basis, the whole leaf levels of the D1, D2, and 34-kilodalton photosystem II poly...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.98.3.1154
更新日期:1992-03-01 00:00:00
abstract::Under stress conditions such as high light intensity or nutrient starvation, cells of the unicellular alga Dunaliella bardawil overproduce beta-carotene, which is accumulated in the plastids in newly formed triacylglycerol droplets. We report here that the formation of these sequestering structures and beta-carotene a...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.116.4.1239
更新日期:1998-04-01 00:00:00
abstract::Phloem protein 2 (PP2) is one of the most abundant and enigmatic proteins in the phloem sap. Although thought to be associated with structural P-protein, PP2 is translocated in the assimilate stream where its lectin activity or RNA-binding properties can exert effects over long distances. Analyzing the diversity of th...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.013086
更新日期:2003-01-01 00:00:00
abstract::Biosynthesis of the polyamines putrescine, spermidine, and spermine is induced in response to pathogen infection of plants. Putrescine, which is produced from Arg, serves as a metabolic precursor for longer polyamines, including spermidine and spermine. Polyamine acetylation, which has important regulatory functions i...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.16.00446
更新日期:2016-06-01 00:00:00
abstract::Exposure of soybean (Glycine max) seedlings to low levels of atmospheric methyl jasmonate induced the expression and accumulation of one or more lipoxygenase(s) in the primary leaves, hypocotyls, epicotyls, and cotyledons. In the primary leaf, the major site of lipoxygenase accumulation in response to methyl jasmonate...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.100.1.433
更新日期:1992-09-01 00:00:00
abstract::After the application of 2.36 Curies per millimole [2,3-(3)H]gibberellin A(20) (GA(20)) to 21-day-old maize (Zea mays L., hybrid CM7 x CM49) plants, etiolated maize seedlings, or maturing maize cobs, a number of (3)H-metabolites were observed. The principal acidic (pH 3.0), ethyl acetate-soluble metabolite was identif...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.70.6.1614
更新日期:1982-12-01 00:00:00
abstract::Investigation was made on the effect of partial depletion of polyamines (PAs), induced by treatment with inhibitors of the biosynthesis of PAs, on the distribution of cells at each phase of the cell cycle in Catharanthus roseus (L.) G. Don. cells in suspension cultures, using flow cytometry. More cells treated with in...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.96.4.1008
更新日期:1991-08-01 00:00:00
abstract::DNA polymerase zeta catalytic subunit REV3 is known to play an important role in the repair of DNA damage induced by cross-linking and methylating agents. Here, we demonstrate that in Arabidopsis (Arabidopsis thaliana), the basic polymerase activity of REV3 is essential for resistance protection against these differen...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.15.00806
更新日期:2015-12-01 00:00:00
abstract::The activity of the alternative pathway is affected by a number of factors, including the level and reduction state of the alternative oxidase (AOX) protein, and the reduction state of the ubiquinone pool. To investigate the significance of these factors for the rate of alternative respiration in vivo, we studied root...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.126.1.376
更新日期:2001-05-01 00:00:00
abstract::Plants accumulate the lipids phosphatidic acid (PA), diacylglycerol (DAG), and triacylglycerol (TAG) during cold stress, but how plants balance the levels of these lipids to mediate cold responses remains unknown. The enzymes ACYL-COENZYME A:DIACYLGLYCEROL ACYLTRANSFERASE (DGAT) and DIACYLGLYCEROL KINASE (DGK) catalyz...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.18.00402
更新日期:2018-07-01 00:00:00
abstract::Small proteins have long been overlooked due to their poor annotation and the experimental challenges they pose. However, in recent years, their role in various processes has started to emerge, opening new research avenues. Here, we present the isolation and characterization of two allelic mutants, twisted seed1-1 (tw...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.16.00915
更新日期:2016-11-01 00:00:00
abstract::A phytostat to mass culture higher plant cells in liquid medium is described. This apparatus allowed the culture in batch, turbidostat and chemostat of 20 liters of cells. Automatic control of cell suspension growth was based on culture turbidity. Changes with time of certain cell characteristics, particularly cell re...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.59.3.502
更新日期:1977-03-01 00:00:00
abstract::Succulent stems of Cissus quadrangularis L. (Vitaceae) contain glutamine synthetase, glutamate synthase, and glutamate dehydrogenase. The CO(2) and water gas exchanges of detached internodes were typical for Crassulacean acid metabolism plants. During three physiological phases, e.g. in the dark, in the early illumina...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.81.2.356
更新日期:1986-06-01 00:00:00
abstract::The rice plant (Oryza sativa L. cv Oochikara) is known to be a Si accumulator, but the mechanism responsible for the high uptake of Si by the roots is not well understood. We investigated the role of root hairs and lateral roots in the Si uptake using two mutants of rice, one defective in the formation of root hairs (...
journal_title:Plant physiology
pub_type: 杂志文章
doi:
更新日期:2001-12-01 00:00:00
abstract::In this article, we demonstrate the connection between intracellular iron storage and oxidative stress response in cyanobacteria. Iron is essential for the survival of all organisms. However, the redox properties that make iron a valuable cofactor also lead to oxidative interactions, resulting in the formation of harm...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.141853
更新日期:2009-08-01 00:00:00
abstract::The effect of NO2- assimilation on O2 exchange and CO2 fixation of the cyanobacterium, Synechococcus UTEX 625, was studied mass spectrometrically. Upon addition of 1 mM inorganic carbon to the medium, inorganic carbon pools developed and accelerated O2 photoreduction 5-fold when CO2 fixation was inhibited. During stea...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.4.1295
更新日期:1995-12-01 00:00:00
abstract::42K+ and 86Rb+ were used to determine the subcellular distribution of potassium in Chlamydomonas reinhardtii by compartmental analysis. In both wild type and a mutant strain, three distinct compartments (referred to as I, II, and III) were apparent. Using 42K+, we found that these had half-lives for K+ exchange of 1.0...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.4.1537
更新日期:1995-08-01 00:00:00
abstract::The peptidyl prolyl hydroxylase responsible for the formation of hydroxyproline during arabinogalactan-protein biosynthesis in Lolium multiflorum (ryegrass) endosperm cells is a membrane-associated enzyme which will catalyze the hydroxylation of poly(l-proline) in the presence of oxygen, alpha-ketoglutarate, ferrous i...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.72.3.754
更新日期:1983-07-01 00:00:00
abstract::Nonautotrophic CO(2) metabolism in Opuntia echinocarpa roots was studied with techniques of manometry and radiometry. The roots were grown in a one-quarter strength nutrient solution for several days; the distal 2 cm was used for physiological studies. The roots assimilated significant quantities of (14)CO(2) and appe...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.41.3.500
更新日期:1966-03-01 00:00:00
abstract::Electron paramagnetic resonance has been used to quantitate reduction of ferric ion bound to hydroxamate siderophores by iron-stressed fungi (DJ Ecker et al. 1982 J Biol Chem 257:8623-8626) and by iron-stressed Chlorella vulgaris (ATCC 11468) (FCT Allnutt, WD Bonner 1984 J Plant Nutr 7: 427-435). Application of this t...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.83.4.739
更新日期:1987-04-01 00:00:00
abstract::In flowering plants, the two sperm cells are embedded within the cytoplasm of the growing pollen tube and as such are passively transported to the embryo sac, wherein double fertilization occurs upon their release. Understanding the mechanisms and conditions by which male gametes mature and take part in fertilization ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.125229
更新日期:2008-10-01 00:00:00