Mechanism of Stimulation and Inhibition of Tonoplast H-ATPase of Beta vulgaris by Chloride and Nitrate.

abstract：:An NADP-dependent dehydrogenase catalyzing the conversion of l-sorbosone to l-ascorbic acid has been isolated from Phaseolus vulgaris L. and Spinacia oleracea L. and partially purified. It is stable at -20 degrees C for up to 8 months. Molecular masses, as determined by gel filtration, were 21 and 29 kilodaltons for b...

journal_title：Plant physiology

authors： Loewus MW,Bedgar DL,Saito K,Loewus FA

更新日期：1990-11-01 00:00:00

abstract：:Young seedlings of Lavatera cretica L. exhibit positive phototropism. The hypocotyl perceives unilateral illumination with blue light and curves towards the light source by unequal growth. In addition, the cotyledonary laminas perceive the vectorial component of unilateral illumination with blue light and reorient nor...

journal_title：Plant physiology

authors： Schwartz A,Koller D

更新日期：1980-07-01 00:00:00

abstract：:Stationary volume fluxes through living and denatured parenchyma slices of the potato (Solanum tuberosum L.) storage organ were studied to estimate the hydraulic conductivity of the cell wall and to evaluate the significance of water transport through protoplasts, cell walls, and intercellular spaces. Slices were plac...

journal_title：Plant physiology

authors： Michael W,Schultz A,Meshcheryakov AB,Ehwald R

更新日期：1997-11-01 00:00:00

abstract：:The light dependent energization of the thylakoid membrane was analyzed in isolated intact spinach (Spinacia oleracea L.) chloroplasts incubated with different concentrations of inorganic phosphate (Pi). Two independent methods were used: (a) the accumulation of [(14)C]5,5-dimethyl-2,4-oxazolidinedione and [(14)C] met...

journal_title：Plant physiology

authors： Heineke D,Stitt M,Heldt HW

更新日期：1989-09-01 00:00:00

abstract：:Polyamines are small ubiquitous molecules that have been involved in nearly all developmental processes, including the stress response. Nevertheless, no direct evidence of a role of polyamines in the wound response has been described. We have studied the expression of genes involved in polyamine biosynthesis in respon...

journal_title：Plant physiology

authors： Perez-Amador MA,Leon J,Green PJ,Carbonell J

更新日期：2002-11-01 00:00:00

abstract：:Polyacrylamide gel electrophoresis and electron microscopy revealed that accumulation of iron-protein in soybean nodules is influenced by nodule age, mutation in bradyrhizobia, and rhizobial/bradyrhizobial strain-soybean cultivar interactions. Iron-protein concentrations (micrograms per milligram protein) were inverse...

journal_title：Plant physiology

authors： Ko MP,Huang PY,Huang JS,Barker KR

更新日期：1987-02-01 00:00:00

abstract：:A combined system has been developed in which epidermal cell turgor, leaf water potential, and gas exchange were determined for transpiring leaves of Tradescantia virginiana L. Uniform and stable values of turgor were observed in epidermal cells (stomatal complex cells were not studied) under stable environmental cond...

journal_title：Plant physiology

authors： Shackel KA,Brinckmann E

更新日期：1985-05-01 00:00:00

abstract：:The activities of the free base and ribonucleoside forms of cytokinins bearing saturated and unsaturated N(6)-isoprenoid side chains have been examined in callus cultures derived from Phaseolus vulgaris cv. Great Northern, P. lunatus cv. Kingston, and the interspecific hybrid Great Northern x Kingston. In callus of cv...

journal_title：Plant physiology

authors： Mok MC,Mok DW,Dixon SC,Armstrong DJ,Shaw G

更新日期：1982-07-01 00:00:00

abstract：:The factors that mediate specific responses to the plant hormone ethylene are not fully defined. In particular, it is not known how signaling at the receptor complex can control distinct subsets of ethylene responses. Mutations at the Green-ripe (Gr) and reversion to ethylene sensitivity1 (rte1) loci, which encode hom...

journal_title：Plant physiology

authors： Ma Q,Du W,Brandizzi F,Giovannoni JJ,Barry CS

更新日期：2012-12-01 00:00:00

abstract：:Apical segments of roots of Zea mays L. cv. Orla and cv. Anjou show a strong georeaction during 7 hours geostimulation. This is abolished by detipping the segments and restored by replacing the tips upon the apical cut surfaces. After exodiffusion of endogenous indoleacetic acid (IAA) the retipped segments showed a si...

journal_title：Plant physiology

authors： Pilet PE

更新日期：1981-05-01 00:00:00

abstract：:Production of disease symptoms represents the final phase of infectious diseases and is a main cause of crop loss and/or marketability. However, little is known about the molecular basis of disease symptom development. In this study, a genetic screening was conducted to identify Arabidopsis (Arabidopsis thaliana) muta...

journal_title：Plant physiology

authors： Mecey C,Hauck P,Trapp M,Pumplin N,Plovanich A,Yao J,He SY

更新日期：2011-12-01 00:00:00

abstract：:Endo-[beta]-mannanase is hypothesized to be a rate-limiting enzyme in endosperm weakening, which is a prerequisite for radicle emergence from tomato (Lycopersicon esculentum Mill.) seeds. Using a sensitive, single-seed assay, we have measured mannanase activity diffusing from excised tomato endosperm caps following tr...

journal_title：Plant physiology

authors： Still DW,Bradford KJ

更新日期：1997-01-01 00:00:00

abstract：:Previous evidence has suggested that SPA1 is a signal transduction component that appears to require phytochrome A for function in seedling photomorphogenesis. Using digital image analysis, we examined the time course of growth inhibition induced by red light in spa1 mutants to test the interpretation that SPA1 functi...

journal_title：Plant physiology

authors： Parks BM,Hoecker U,Spalding EP

更新日期：2001-07-01 00:00:00

abstract：:The triple isotope composition (delta17O and delta18O) of dissolved O2 in the ocean and in ice cores was recently used to assess the primary productivity over broad spatial and temporal scales. However, assessment of the productivity with the aid of this method must rely on accurate measurements of the 17O/16O versus ...

journal_title：Plant physiology

authors： Helman Y,Barkan E,Eisenstadt D,Luz B,Kaplan A

更新日期：2005-08-01 00:00:00

abstract：:Successful development and dehiscence of the anther and release of pollen are dependent upon the programmed cell death (PCD) of the tapetum and other sporophytic tissues. Ultrastructural examination of the developing and dehiscing anther of tomato (Solanum lycopersicum) revealed that cells of the interlocular septum, ...

journal_title：Plant physiology

authors： Senatore A,Trobacher CP,Greenwood JS

更新日期：2009-02-01 00:00:00

abstract：:A hybrid of sweet corn, Zea mays L. (;1720'; Rogers Brothers Seed Co.), was found to be comprised of glycinebetaine-positive and glycinebetaine-deficient individuals in a 1:1 mixture. This phenomenon was traced to segregation for a single, nuclear, dominant gene determining leaf glycinebetaine content within the femal...

journal_title：Plant physiology

authors： Rhodes D,Rich PJ,Brunk DG,Ju GC,Rhodes JC,Pauly MH,Hansen LA

更新日期：1989-11-01 00:00:00

abstract：:Experiments were conducted in growth chambers to examine the effect of a mild water stress (-200 kilopascals polyethylene glycol) on frond elongation and water status of the ostrich fern (Matteuccia struthiopteris [L.] Todaro). Measurements were taken for two days, starting one day after the application of polyethylen...

journal_title：Plant physiology

authors： Prange RK,Ormrod DP

更新日期：1983-05-01 00:00:00

abstract：:Jojoba (Simmondsia chinensis [Link] Schneider) is an important crop in desert climates. A relatively high frequency of periods of chilling and high photon flux density (PFD) in this environment makes photoinhibition likely, resulting in a reduction of assimilation capacity in overwintering leaves. This could explain t...

journal_title：Plant physiology

authors： Loreto F,Bongi G

更新日期：1989-12-01 00:00:00

abstract：:The collection of symbiotic (sym) mutants of white sweetclover (Melilotus alba Desr.) provides a developmental sequence of mutants blocked early in infection or nodule organogenesis. Mutant phenotypes include non-nodulating mutants that exhibit root-hair deformations in response to Rhizobium meliloti, mutants that for...

journal_title：Plant physiology

authors： Wu C,Dickstein R,Cary AJ,Norris JH

更新日期：1996-02-01 00:00:00

abstract：:Inoculation of soybean (Glycine max) plants with Phakopsora pachyrhizi, the causal organism of Asian soybean rust, elicits a biphasic response characterized by a burst of differential gene expression in the first 12 h. A quiescent period occurs from 24 to 48 h after inoculation, in which P. pachyrhizi continues to dev...

journal_title：Plant physiology

authors： Schneider KT,van de Mortel M,Bancroft TJ,Braun E,Nettleton D,Nelson RT,Frederick RD,Baum TJ,Graham MA,Whitham SA

更新日期：2011-09-01 00:00:00

abstract：:Rice (Oryza sativa) accumulates prolamins and glutelins as storage proteins. The latter storage protein is synthesized on the endoplasmic reticulum (ER) as a 57-kD proglutelin precursor, which is then processed into acidic and basic subunits in the protein storage vacuole. Three esp2 mutants, CM1787, EM44, and EM747, ...

journal_title：Plant physiology

authors： Takemoto Y,Coughlan SJ,Okita TW,Satoh H,Ogawa M,Kumamaru T

更新日期：2002-04-01 00:00:00

abstract：:Temperature-induced changes in the enzymes for fatty acid synthesis and desaturation were studied in developing soybean seeds (Glycine max L. var Williams 82). Changes were induced by culture of the seed pods for 20 hours in liquid media at 20, 25, or 35 degrees C. Linoleoyl and oleoyl desaturases were 94 and 10 times...

journal_title：Plant physiology

authors： Cheesbrough TM

更新日期：1989-06-01 00:00:00

abstract：:Control of folate homeostasis is essential to sustain the demand for one-carbon (C1) units that are necessary for major biological functions, including nucleotide synthesis and methylation reactions. In this study, we analyzed the genome-wide and metabolic adaptive response of Arabidopsis (Arabidopsis thaliana) cells ...

journal_title：Plant physiology

authors： Loizeau K,De Brouwer V,Gambonnet B,Yu A,Renou JP,Van Der Straeten D,Lambert WE,Rébeillé F,Ravanel S

更新日期：2008-12-01 00:00:00

abstract：:A cDNA clone encoding rice (Oryza sativa L.) cytosolic triosephosphate isomerase (TPI), an important glycolytic enzyme, was isolated and characterized. The clone (pRTPI-6) contains an open reading frame of 759 base pairs, encoding a polypeptide chain of 253 amino acid residues (M(r) 27,060). The identity of this clone...

journal_title：Plant physiology

authors： Xu Y,Hall TC

更新日期：1993-02-01 00:00:00

abstract：:Analysis of extracts from 6300 (1.2 grams fresh weight) Phaseolus coccineus suspensors by combined gas chromatography-mass spectrometry has demonstrated the presence of five C(19)-gibberellins, GA(1), GA(4), GA(5), GA(6), GA(8), and one C(20)-GA, GA(44). The major GAs present were GA(1) and GA(8). Data are discussed i...

journal_title：Plant physiology

authors： Picciarelli P,Alpi A

更新日期：1986-09-01 00:00:00

abstract：:Most dicotyledonous species respond to Fe deficiency by developing several mechanisms known as Fe-deficiency stress responses. To study the regulation of these responses, young cucumber plants (Cucumis sativus L. cv Ashley) were grown in nutrient solution for 11 d, being deprived of Fe during the last 4 or 5 d. Inhibi...

journal_title：Plant physiology

authors： Romera FJ,Alcantara E

更新日期：1994-08-01 00:00:00

abstract：:The effect of the exogenous and endogenous NO(3) (-) concentration on net uptake, influx, and efflux of NO(3) (-) and on nitrate reductase activity (NRA) in roots was studied in Phaseolus vulgaris L. cv. Witte Krombek. After exposure to NO(3) (-), an apparent induction period of about 6 hours occurred regardless of th...

journal_title：Plant physiology

authors： Breteler H,Nissen P

更新日期：1982-09-01 00:00:00

abstract：:Oleate-dependent phospholipase D (PLD; EC 3.1.4.4) has been reported in animal systems, but its molecular nature is unkown. Multiple PLDs have been characterized in plants, but none of the previously cloned PLDs exhibits the oleate-activated activity. Here, we describe the biochemical and molecular identification and ...

journal_title：Plant physiology

authors： Wang C,Wang X

更新日期：2001-11-01 00:00:00

abstract：:The uptake of orthophosphate ((32)P) by excised corn roots, Zea mays L. was studied using roots grown on 0.2 mm CaSO(4). Nine concentrations of KH(2)PO(4) from 1 to 256 mum were used at temperatures of 20 degrees , 30 degrees , and 40 degrees . Enzyme kinetic analysis was applied to the data obtained. Two apparent mec...

journal_title：Plant physiology

authors： Carter OG,Lathwell DJ

更新日期：1967-10-01 00:00:00

abstract：:Rhizobium promoters involved in the formation of root nodules on leguminous plants are activated by flavonoids in plant root exudate. A series of Rhizobium strains which all contain the inducible Rhizobium leguminosarum nodA promoter fused to the Escherichia coli lacZ gene, and which differ only in the source of the r...

journal_title：Plant physiology

authors： Zaat SA,Wijffelman CA,Mulders IH,van Brussel AA,Lugtenberg BJ

更新日期：1988-04-01 00:00:00