Analysis of the small GTPase gene superfamily of Arabidopsis.

abstract：:Western blots of soluble protein from wheat, rice, and corn showed that ADPglucose pyrophosphorylase subunits have a size of 50 kilodaltons from endosperm tissue and 43 and 46 kilodaltons from leaf. Antisera to ADPglucose pyrophosphorylase precipitated in vitro translation products of 73 and 76 kilodaltons when leaf p...

journal_title：Plant physiology

authors： Krishnan HB,Reeves CD,Okita TW

更新日期：1986-06-01 00:00:00

abstract：:ATP-binding cassette (ABC) transporters represent a large family in plants, but the functions of most of these transporters are unknown. Here we report a gene, AtSTAR1, only encoding an ATP-binding domain of a bacterial-type ABC transporter in Arabidopsis (Arabidopsis thaliana). AtSTAR1 is an ortholog of rice (Oryza s...

journal_title：Plant physiology

authors： Huang CF,Yamaji N,Ma JF

更新日期：2010-08-01 00:00:00

abstract：:It is demonstrated that, in etiolated pea (Pisum sativum) epicotyls, ethylene affects the activation of both monomeric GTP-binding proteins (monomeric G-proteins) and protein kinases. For monomeric G-proteins, the effect may be a rapid (2 min) and bimodal up-regulation, a transiently unimodal activation, or a transien...

journal_title：Plant physiology

authors： Moshkov IE,Novikova GV,Mur LA,Smith AR,Hall MA

更新日期：2003-04-01 00:00:00

abstract：:The unicellular green alga Chlamydomonas reinhardtii is a widely used model organism for studies of oxygenic photosynthesis in eukaryotes. Here we describe the development of a resource for functional genomics of photosynthesis using insertional mutagenesis of the Chlamydomonas nuclear genome. Chlamydomonas cells were...

journal_title：Plant physiology

authors： Dent RM,Haglund CM,Chin BL,Kobayashi MC,Niyogi KK

更新日期：2005-02-01 00:00:00

abstract：:Leaf discs and detached leaves exposed to l-cysteine emitted a volatile sulfur compound which was proven by gas chromatography to be H(2)S. This phenomenon was demonstrated in all nine species tested (Cucumis sativus, Cucurbita pepo, Nicotiana tabacum, Coleus blumei, Beta vulgaris, Phaseolus vulgaris, Medicago sativa,...

journal_title：Plant physiology

authors： Sekiya J,Schmidt A,Wilson LG,Filner P

更新日期：1982-08-01 00:00:00

abstract：:Geranylgeranyl diphosphate (GGPP) is the precursor for the biosynthesis of gibberellins, carotenoids, chlorophylls, isoprenoid quinones, and geranylgeranylated proteins in plants. There is a small gene family for GGPP synthases encoding five isozymes and one related protein in Arabidopsis, and all homologs have a puta...

journal_title：Plant physiology

authors： Okada K,Saito T,Nakagawa T,Kawamukai M,Kamiya Y

更新日期：2000-04-01 00:00:00

abstract：:As a step to understanding how the photoreceptor phytochrome acts to change the transcription of specific nuclear genes in Lemna gibba, we wish to compare promoter elements involved in negative regulation by phytochrome with those involved in positive regulation. We have isolated three genes negatively regulated by ph...

journal_title：Plant physiology

authors： Okubara PA,Williams SA,Doxsee RA,Tobin EM

更新日期：1993-03-01 00:00:00

abstract：:(31)P NMR spectroscopy was used to study in vivo the symbiotic state established between soybean (Glycine max [L.] Merr. cv Williams) and Bradyrhizobium japonicum (USDA 110 and 138). Different experimental conditions were used to maintain perfused, respiring detached or attached nodules in an NMR magnet. The pH of the...

journal_title：Plant physiology

authors： Rolin DB,Boswell RT,Sloger C,Tu SI,Pfeffer PE

更新日期：1989-04-01 00:00:00

abstract：:Logarithmic growth rates (either fresh or dry weight basis) of tobacco callus tissues grown on 10(-4) to 10(-1) mum cytokinin are increased if gibberellic acid (10(-3)-2 mum) is incorporated into the medium. At higher (1-10 mum) cytokinin concentrations gibberellic acid has little effect on growth rate but extends the...

journal_title：Plant physiology

authors： Helgeson JP,Upper CD

更新日期：1970-07-01 00:00:00

abstract：:Among the four uppermost leaves of greenhouse-grown plants of Xanthium strumarium L. the content of abscisic acid per unit fresh or dry weight was highest in the youngest leaf and decreased gradually with increasing age of the leaves. Expressed per leaf, the second youngest leaf was richest in ABA; the amount of ABA p...

journal_title：Plant physiology

authors： Raschke K,Zeevaart JA

更新日期：1976-08-01 00:00:00

abstract：:A method for the preparation of developmentally staged microspores and young pollen from maize (Zea mays) has been devised. The preparations are of sufficient purity and quantity for biochemical analysis, including the analysis of steady-state protein and RNA populations associated with each stage. A major transition ...

journal_title：Plant physiology

authors： Bedinger PA,Edgerton MD

更新日期：1990-02-01 00:00:00

abstract：:Roots of taro (Colocasia esculenta [L.] Schott cvs Bun-long and Lehua maoli) exuded increasing concentrations of oxalate with increasing Al stress. This exudation was a specific response to excess Al and not to P deficiency. Addition of oxalate to Al-containing solutions ameliorated the toxic effect of Al. ...

journal_title：Plant physiology

authors： Ma Z,Miyasaka SC

更新日期：1998-11-01 00:00:00

abstract：:Infrared video thermography was used to observe ice nucleation temperatures, patterns of ice formation, and freezing rates in nonacclimated and cold acclimated leaves of a spring (cv Quest) and a winter (cv Express) canola (Brassica napus). Distinctly different freezing patterns were observed, and the effect of water ...

journal_title：Plant physiology

authors： Gusta LV,Wisniewski M,Nesbitt NT,Gusta ML

更新日期：2004-07-01 00:00:00

abstract：:Salinity is an environmental stress that causes decline in crop yield. Avicennia officinalis and other mangroves have adaptations such as ultrafiltration at the roots aided by apoplastic cell wall barriers to thrive in saline conditions. We studied a cytochrome P450 gene from A. officinalis, AoCYP94B1, and its putativ...

journal_title：Plant physiology

authors： Krishnamurthy P,Vishal B,Ho WJ,Lok FCJ,Lee FSM,Kumar PP

更新日期：2020-12-01 00:00:00

abstract：:Interactions between putrescine and membrane function were examined with the use of a recently developed microelectrode system that enables us simultaneously to quantify membrane potentials and net K(+) fluxes associated with individual cells at the root surface of an intact corn (Zea mays L.) seedling. In contrast to...

journal_title：Plant physiology

authors： Ditomaso JM,Shaff JE,Kochian LV

更新日期：1989-07-01 00:00:00

abstract：:Transgenic Medicago truncatula plants were produced harboring chimeric gene constructs of the glutamine synthetase (GS) cDNA clones (MtGS1a or MtGS1b) fused in sense or antisense orientation to the nodule-specific leghemoglobin promoter Mtlb1. A series of transgenic plants were obtained showing a 2- to 4-fold alterati...

journal_title：Plant physiology

authors： Carvalho HG,Lopes-Cardoso IA,Lima LM,Melo PM,Cullimore JV

更新日期：2003-09-01 00:00:00

abstract：:The phytochrome (phy) family of sensory photoreceptors (phyA-phyE in Arabidopsis thaliana) induces changes in target-gene expression upon light-induced translocation to the nucleus, where certain members interact with selected members of the constitutively nuclear basic helix-loop-helix transcription factor family, su...

journal_title：Plant physiology

authors： Shen Y,Khanna R,Carle CM,Quail PH

更新日期：2007-11-01 00:00:00

abstract：:The water-soluble polysaccharides (SEPS) secreted into the medium by suspension-cultured sycamore cells were examined to determine whether the polysaccharides were the same as those present in the walls of sycamore cells. The SEPS were made more amenable to fractionation by treatment with a highly purified alpha-1,4-e...

journal_title：Plant physiology

authors： Stevenson TT,McNeil M,Darvill AG,Albersheim P

更新日期：1986-04-01 00:00:00

abstract：:Glycolate and glyoxylate stimulated 100% to 300% the rate of oxygen evolution by Scenedesmus in the light in the absence of added carbon dioxide. This stimulation occurred either aerobically or anaerobically, and was sensitive to CMU. Aerobic dark respiration was stimulated 25% to 100% by glycolate. This phenomenon wa...

journal_title：Plant physiology

authors： Nelson EB,Tolbert NE,Hess JL

更新日期：1969-01-01 00:00:00

abstract：:Measurements were made of (45)Ca influx into isolated internodal cells of Chara corallina and also into internodal cells of intact plants. (45)Ca influx was closely related to growth. In rapidly expanding internodal cells, the influx was approximately 1.4 nmol m(-2) s(-1) compared to the influx in mature cells from sl...

journal_title：Plant physiology

authors： Reid RJ,Smith FA

更新日期：1992-10-01 00:00:00

abstract：:THE EFFECT OF SALINITY ON INCORPORATION OF AMINO ACIDS INTO ROOT TIP PROTEIN IS APPARENTLY OF DUAL NATURE: in presence of salts the uptake is depressed and the normal metabolic pathways are disturbed. If the roots were grown at high salt concentration, uptake and incorporation are affected even if they are carried out...

journal_title：Plant physiology

authors： Kahane I,Poljakoff-Mayber A

更新日期：1968-07-01 00:00:00

abstract：:Seed germination is a critical stage in the plant life cycle and the first step toward successful plant establishment. Therefore, understanding germination is of important ecological and agronomical relevance. Previous research revealed that different seed compartments (testa, endosperm, and embryo) control germinatio...

journal_title：Plant physiology

authors： Dekkers BJ,Pearce S,van Bolderen-Veldkamp RP,Marshall A,Widera P,Gilbert J,Drost HG,Bassel GW,Müller K,King JR,Wood AT,Grosse I,Quint M,Krasnogor N,Leubner-Metzger G,Holdsworth MJ,Bentsink L

更新日期：2013-09-01 00:00:00

abstract：:Threonine dehydratase/deaminase (TD), the first enzyme in the isoleucine biosynthetic pathway, is feedback inhibited by isoleucine. By screening M2 populations of ethyl methane sulfonate-treated Arabidopsis thaliana Columbia wild-type seeds, we isolated five independent mutants that were resistant to L-O-methylthreoni...

journal_title：Plant physiology

authors： Mourad G,King J

更新日期：1995-01-01 00:00:00

abstract：:Under controlled environment and/or field conditions, vegetative growth (height, internode length, leaf area, shoot dry weight, grain yield) was greater in an F(1) maize hybrid than in either parental inbred. Endogenous gibberellin (GA)-like substances in apical meristem cylinders were also higher in the hybrid than i...

journal_title：Plant physiology

authors： Rood SB,Pharis RP,Koshioka M,Major DJ

更新日期：1983-03-01 00:00:00

abstract：:A mutant of Arabidopsis contained increased levels of 18:3 fatty acids and correspondingly decreased levels of 18:2. The fatty acid phenotype was strongly expressed in root and seed tissues and this observation, together with other data, suggested that the mutation leads to increased activity of the endoplasmic reticu...

journal_title：Plant physiology

authors： Shah S,Xin Z,Browse J

更新日期：1997-08-01 00:00:00

abstract：:A physical analysis of water movement through elongating soybean (Glycine max L. Merr.) hypocotyls was made to determine why significant water potentials persist in growing tissues even though the external water potentials were zero and transpiration is virtually zero. The analysis was based on a water transport theor...

journal_title：Plant physiology

authors： Molz FJ

更新日期：1978-09-01 00:00:00

abstract：:Previously the Arabidopsis (Arabidopsis thaliana) zinc finger protein OXIDATIVE STRESS2 (AtOXS2) and four OXS2-like (AtO2L) family members were described to play a role in stress tolerance and stress escape. For stress escape, SOC1 was a target of AtOXS2. However, for stress tolerance, the downstream targets were not ...

journal_title：Plant physiology

authors： He L,Ma X,Li Z,Jiao Z,Li Y,Ow DW

更新日期：2016-07-01 00:00:00

abstract：:Extracts of immature kernels of Zea mays L. catalyzed the synthesis of indol-3-yl-acetyl-myo-inositol arabinoside from indol-3-yl-acetyl-myo-inositol and UDP-[U-(14)C]xylose. The product contained radioactivity which upon hydrolysis with trifluoroacetic acid cochromatographed with arabinose and not xylose. The amount ...

journal_title：Plant physiology

authors： Corcuera LJ,Bandurski RS

更新日期：1982-12-01 00:00:00

abstract：:ORNITHINE: 2-oxoacid aminotransferase (EC 2.6.1.13) has been purified over 400-fold with a total recovery of 14% from acetone powders of cotyledons of germinating squash (Cucurbita pepo, L.) seedlings. The pH optimum of the transamination between l-ornithine and alpha-ketoglutarate is 8 and the Michaelis constants are...

journal_title：Plant physiology

authors： Lu TS,Mazelis M

更新日期：1975-03-01 00:00:00

abstract：:A novel mutant of Arabidopsis thaliana, arc6 (accumulation and replication of chloroplasts), has been isolated from a transfer DNA-mutagenized population of Arabidopsis seedlings. arc6 has the most extreme arc mutant phenotype we have yet described, with only one to three chloroplasts per leaf mesophyll cell compared ...

journal_title：Plant physiology

authors： Pyke KA,Rutherford SM,Robertson EJ,Leech RM

更新日期：1994-11-01 00:00:00