Nitrogen Use Efficiency Is Mediated by Vacuolar Nitrate Sequestration Capacity in Roots of Brassica napus.

abstract：:In pea leaves, much of the metabolism of imported asparagine is by transamination. This activity was previously shown to be localized in the peroxisomes, suggesting a possible connection between asparagine and photorespiratory nitrogen metabolism. This was investigated by examination of the transfer of (15)N from the ...

journal_title：Plant physiology

authors： Ta TC,Joy KW,Ireland RJ

更新日期：1985-06-01 00:00:00

abstract：:Salinity-induced alterations in tomato (Lypersicon esculentum Mill. cv Heinz 1350) root plasma membrane properties were studied and characterized using a membrane vesicle system. Equivalent rates of MgATP-dependent H(+)-transport activity were measured by quinacrine fluorescence (DeltapH) in plasma membrane vesicles i...

journal_title：Plant physiology

authors： Suhayda CG,Giannini JL,Briskin DP,Shannon MC

更新日期：1990-06-01 00:00:00

abstract：:In plants, bZIP (basic leucine zipper) transcription factors regulate diverse processes such as development and stress responses. However, few of these transcription factors have been functionally characterized in maize (Zea mays). In this study, we characterized the bZIP transcription factor gene ZmbZIP4 from maize. ...

journal_title：Plant physiology

authors： Ma H,Liu C,Li Z,Ran Q,Xie G,Wang B,Fang S,Chu J,Zhang J

更新日期：2018-10-01 00:00:00

abstract：:The nature of the association between nitrate reductase (NR) and membranes was examined. Nitrate reductase activity (NRA) associated with the microsomal fraction of barley (Hordeum vulgare L.) roots amounted to 0.6 to 0.8% of soluble NRA following sonication in the presence of 250 mM KI and repeated osmotic shock. T...

journal_title：Plant physiology

authors： Meyerhoff PA,Fox TC,Travis RL,Huffaker RC

更新日期：1994-01-01 00:00:00

abstract：:The effect of external CO2 concentration on the expression of carbonic anhydrase (CA) and ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) was examined in pea (Pisum sativum cv Little Marvel) leaves. Enzyme activities and their transcript levels were reduced in plants grown at 1000 [mu]L/L CO2 compared with p...

journal_title：Plant physiology

authors： Majeau N,Coleman JR

更新日期：1996-10-01 00:00:00

abstract：:ADP-glucose pyrophosphorylase was partially purified from Chlorella vulgaris 11h. 3-Phosphoglycerate activated the enzyme by lowering the Michaelis constant for glucose-1-phosphate (from 0.97 to 0.36 millimolar in the presence of 2 millimolar phosphoglycerate) and ATP (from 0.23 to 0.10 millimolar), as well as increas...

journal_title：Plant physiology

authors： Nakamura Y,Imamura M

更新日期：1985-07-01 00:00:00

abstract：:The cDNA for 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase of Arabidopsis encodes a polypeptide with an amino-terminal signal sequence for plastid import. A cDNA fragment encoding the processed form of the enzyme was expressed in Escherichia coli. The resulting protein was purified to electrophoretic homogeneit...

journal_title：Plant physiology

authors： Entus R,Poling M,Herrmann KM

更新日期：2002-08-01 00:00:00

abstract：:The wilty tomato mutant, flacca, and the control variety, Rheinlands Ruhm, were compared with regard to the endogenous activity and concentration of auxin- and abscisic acid-like substances during ontogeny. The mutant wilts fast under water deficit because of inability to close its stomata. Symptoms characteristic of ...

journal_title：Plant physiology

authors： Tal M,Imber D

更新日期：1970-09-01 00:00:00

abstract：:Influx and accumulation of K(+) in barley (Hordeum vulgare L. cv Fergus) roots were measured at two temperatures (10 degrees C and 20 degrees C) in plants which had been grown with roots and shoots at 20 degrees C (HT plants), with roots and shoots at 10 degrees C (LT plants), and with roots at 10 degrees C and shoots...

journal_title：Plant physiology

authors： Siddiqi MY,Memon AR,Glass AD

更新日期：1984-03-01 00:00:00

abstract：:We report the molecular cloning and sequence of the cDNA coding for the biotin-containing subunit of the chloroplastic acetylcoenzyme A (CoA) carboxylase (ACCase) of Arabidopsis thaliana (CAC1). The 3' end of the CAC1 sequence, coding for a peptide of 94 amino acids, which includes a putative biotinylation motif, was ...

journal_title：Plant physiology

authors： Choi JK,Yu F,Wurtele ES,Nikolau BJ

更新日期：1995-10-01 00:00:00

abstract：:Amyloplast envelope membranes isolated from cultured, white-wild cells of sycamore (Acer pseudoplatanus L.) have been found to contain a Mg(2+)-ATPase, ranging in specific activity from 5 to 30 nanomoles per minute per milligram protein. This ATPase hydrolyzes a broad range of nucleoside triphosphates, whereas it hydr...

journal_title：Plant physiology

authors： Harinasut P,Takabe T,Akazawa T,Tagaya M,Fukui T

更新日期：1988-09-01 00:00:00

abstract：:Hydrogen peroxide (H2O2) is a stable component of reactive oxygen species, and its production in plants represents the successful recognition of pathogen infection and pathogen-associated molecular patterns (PAMPs). This production of H2O2 is typically apoplastic but is subsequently associated with intracellular immun...

journal_title：Plant physiology

authors： Tian S,Wang X,Li P,Wang H,Ji H,Xie J,Qiu Q,Shen D,Dong H

更新日期：2016-07-01 00:00:00

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：:Potato (Solanum tuberosum L. cv Saturna) plants were grown in pots with varying supplies of K fertilizer (1.25, 5, and 10 grams K(2)O per 12 kilograms soil). Four weeks after midflower, plants were supplied with (14)CO(2) for 12 hours and osmotic and water potential in tubers were determined. Assimilation of (14)CO(2)...

journal_title：Plant physiology

authors： Beringer H,Haeder HE,Lindhauer M

更新日期：1983-12-01 00:00:00

abstract：:The primary storage protein of oat (Avena sativa L.) seeds, globulin, was shown to have a specific carbohydrate-binding activity. The globulin was capable of hemagglutinating rabbit red blood cells and this hemagglutination was inhibited by the beta-glucan, laminarin, as well as by carbohydrate which had been cleaved ...

journal_title：Plant physiology

authors： Langston-Unkefer PJ,Gade W

更新日期：1984-03-01 00:00:00

abstract：:Electrophysiological studies in roots of pea (Pisum sativum L.) and rigid ryegrass (Lolium rigidum Gaud.) seedlings were conducted to elucidate the mechanism involved in the membrane response to the herbicide diclofop. In pea, a dicotyledonous plant insensitive to diclofop, membrane depolarization at varying pH values...

journal_title：Plant physiology

authors： DiTomaso JM

更新日期：1993-08-01 00:00:00

abstract：:Growth of the aerial part of the plant is dependent upon the maintenance of the shoot apical meristem (SAM). A balance between the self-renewing stem cells in the central zone (CZ) and organogenesis in the peripheral zone (PZ) is essential for the integrity, function, and maintenance of the SAM. Understanding how the ...

journal_title：Plant physiology

authors： Ung N,Lal S,Smith HM

更新日期：2011-06-01 00:00:00

abstract：:Aldolase activity of Chara foetida (Braun) could be separated into a minor (peak I) and a major peak (peak II) by ion-exchange chromatography on DEAE-cellulose. Affinity chromatography on P-cellulose resulted in highly purified aldolase preparations with specific activities of 3.2 and 4.8 units per milligram protein a...

journal_title：Plant physiology

authors： Jacobshagen S,Schnarrenberger C

更新日期：1988-05-01 00:00:00

abstract：:The occurrence of fungicidal, elemental S is well documented in certain specialized prokaryotes, but has rarely been detected in eukaryotes. Elemental S was first identified in this laboratory as a novel phytoalexin in the xylem of resistant genotypes of Theobroma cacao, after infection by the vascular, fungal pathoge...

journal_title：Plant physiology

authors： Williams JS,Hall SA,Hawkesford MJ,Beale MH,Cooper RM

更新日期：2002-01-01 00:00:00

abstract：:Plant hormones modulate plant growth, development, and defense. However, many aspects of the origin and evolution of plant hormone signaling pathways remain obscure. Here, we use a comparative genomic and phylogenetic approach to investigate the origin and evolution of nine major plant hormone (abscisic acid, auxin, b...

journal_title：Plant physiology

authors： Wang C,Liu Y,Li SS,Han GZ

更新日期：2015-03-01 00:00:00

abstract：:The plant cuticle is an extracellular hydrophobic layer that covers the aerial epidermis of all land plants, providing protection against desiccation and external environmental stresses. The past decade has seen considerable progress in assembling models for the biosynthesis of its two major components, the polymer cu...

journal_title：Plant physiology

authors： Yeats TH,Rose JK

更新日期：2013-09-01 00:00:00

abstract：:Soybean (Glycine max [L.] Merr.) seedlings grown in the absence of combined N and in an Ar:O(2) (79:21, volume/volume) atmosphere had greater seedling and nodule mass, threefold higher acetylene reducing activity per gram fresh weight nodules, no observable increase in nitrogenase Fe-protein, and a higher energy charg...

journal_title：Plant physiology

authors： Zhu YX,Schubert KR,Kohl DH

更新日期：1991-05-01 00:00:00

abstract：:Transgenic Nicotiana tabacum (cv Petit Havana SR1) containing high levels of mitochondrial alternative oxidase (AOX) protein due to the introduction of a sense transgene(s) of Aox1, the nuclear gene encoding AOX, were used to investigate mechanisms regulating AOX activity. After purification of leaf mitochondria, a la...

journal_title：Plant physiology

authors： Vanlerberghe GC,Day DA,Wiskich JT,Vanlerberghe AE,McIntosh L

更新日期：1995-10-01 00:00:00

abstract：:A technical procedure is described to follow the in vitro release of the ;male germ unit' and the sperm cells from three tricellular pollen species (Brassica, Zea, and Triticum). The condition of the sperm cell was controlled using light microscopy. In addition, for the first time, the sperm cells viability has been c...

journal_title：Plant physiology

authors： Matthys-Rochon E,Vergne P,Detchepare S,Dumas C

更新日期：1987-03-01 00:00:00

abstract：:Leaves of woad (Isatis tinctoria L.) were found to incorporate efficiently tritiated indoleacetaldoxime and (35)S from (35)S-l-cystine into glucobrassicin and sulfoglucobrassicin. Time course of incorporation of (35)S from (35)S-cystine into the glucosinolates indicated that glucobrassicin was formed first and then su...

journal_title：Plant physiology

authors： Mahadevan S,Stowe BB

更新日期：1972-07-01 00:00:00

abstract：:Recently, we isolated dehydroipomeamarone, a new sesquiterpenoid from sweet potato (Ipomoea batatas Lam.) root tissue infected with Ceratocystis fimbriata (Ell. et Halst.). The purpose of this investigation was to determine whether dehydroipomeamarone was a precursor in the biosynthetic pathway of ipomeamarone. The in...

journal_title：Plant physiology

authors： Oguni I

更新日期：1974-04-01 00:00:00

abstract：:Mitochondrial citrate synthase was purified from leaves of Pisum sativum L. cv Progress 9. A three step purification was employed using ATP-Sepharose affinity chromatography which resulted in a 600-fold enrichment. Enzyme activity was assayed spectrophotometrically during greening of etiolated leaves under constant wh...

journal_title：Plant physiology

authors： Unger EA,Vasconcelos AC

更新日期：1989-03-01 00:00:00

abstract：:Cotyledon explants from germinated 1-day-old soybean seedling were inoculated with single or mixed strains of Agrobacterium tumefaciens. Mixed-strain infections with the supervirulent L,L-succinamopine type strain A281 (pTiBo542) and strain LBA4404 carrying an octopine type virulence (vir) region and a binary vector (...

journal_title：Plant physiology

authors： Owens LD,Smigocki AC

更新日期：1988-11-01 00:00:00

abstract：:Absorption of selenate and selenite by excised roots of Astragalus Crotalariae, a selenium accumulator, and of A. lentiginosus, a non-accumulator, was favored by CaCl(2) and a pH of 4.0. The uptake of selenate and possibly selenite, is metabolically linked. Roots of a number of Astragalus species were examined, and in...

journal_title：Plant physiology

authors： Ulrich JM,Shrift A

更新日期：1968-01-01 00:00:00

abstract：:Sucrose synthase (Sus; EC 2.4.1.13) is a key enzyme of sucrose metabolism in plant cells, providing carbon for respiration and for the synthesis of cell wall polymers and starch. Since Sus is important for plant cell growth, insights into its structure, localization, and features are useful for defining the relationsh...

journal_title：Plant physiology

authors： Persia D,Cai G,Del Casino C,Faleri C,Willemse MT,Cresti M

更新日期：2008-08-01 00:00:00