Calcium Requirement for Indoleacetic Acid-induced Acidification by Avena Coleoptiles.

abstract：:The slow inactivation which accompanies catalysis by higher-plant ribulose-P(2) carboxylase-oxygenase (Rubisco) in vitro was only partially reversed when the enzyme was gel filtered to remove small molecules. However, gel filtration or dialysis in the presence of high SO(2-) (4) concentrations induced full recovery. T...

journal_title：Plant physiology

authors： Edmondson DL,Badger MR,Andrews TJ

更新日期：1990-08-01 00:00:00

abstract：:Sites in maize (Zea mays L.) coleoptile homogenates that reversibly bind naphthalene-1-acetic acid with high affinity and may represent receptor sites for auxins are located primarily on cellular membranes that show the enzymic and buoyant density characteristics of membranes of the rough endoplasmic reticulum. The si...

journal_title：Plant physiology

authors： Ray PM

更新日期：1977-04-01 00:00:00

abstract：:Changes in the properties of extractable vacuolar H+-pumping pyrophosphatase (V-PPase) and vacuolar ATPase activities in chilling-sensitive seedlings of mung bean (Vigna radiata) were investigated. Following chilling at 4[deg]C for 48 h, both hydrolytic and proton-pumping activities of the V-PPase increased 1.5- to 2-...

journal_title：Plant physiology

authors： Darley CP,Davies JM,Sanders D

更新日期：1995-10-01 00:00:00

abstract：:A pyridoxal 5'-phosphate (PLP)-dependent enzyme, 1-aminocyclopropane-1-carboxylic acid (ACC) synthase (S-adenosyl-L-Met methylthioadenosine-lyase, EC 4.4.1.14), catalyzes the conversion of S-adenosyl-L-methionine (AdoMet) to ACC. A tomato ACC synthase isozyme (LE-ACS2) with a deletion of 46 amino acids at the C termin...

journal_title：Plant physiology

authors： Zhou H,Wang HW,Zhu K,Sui SF,Xu P,Yang SF,Li N

更新日期：1999-11-01 00:00:00

abstract：:Fruit firmness in tomato (Solanum lycopersicum) is determined by a number of factors including cell wall structure, turgor, and cuticle properties. Firmness is a complex polygenic trait involving the coregulation of many genes and has proved especially challenging to unravel. In this study, a quantitative trait locus ...

journal_title：Plant physiology

authors： Chapman NH,Bonnet J,Grivet L,Lynn J,Graham N,Smith R,Sun G,Walley PG,Poole M,Causse M,King GJ,Baxter C,Seymour GB

更新日期：2012-08-01 00:00:00

abstract：:A study of the distribution of lectins over different vegetative tissues of barley (Hordeum vulgare L.) plants, which were grown under normal crop conditions, indicated that lectin occurs in roots, leaves, and developing ears. Isolation and characterization of both root and leaf lectins led to the conclusions (a) that...

journal_title：Plant physiology

authors： Cammue B,Stinissen HM,Peumans WJ

更新日期：1985-06-01 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

authors： Cohen PB,Schibeci A,Fincher GB

更新日期：1983-07-01 00:00:00

abstract：:The first compound in the series of reactions leading to the ester conjugates of indole-3-acetic acid (IAA) in kernels of Zea mays sweet corn is the acyl alkyl acetal, 1-O-indol-3-ylacetyl-beta-D-glucose (1-O-IAGlu). The enzyme catalyzing the synthesis of this compound is UDP-glucose:indol-3-ylacetate glucosyl-transf...

journal_title：Plant physiology

authors： Kowalczyk S,Bandurski RS

更新日期：1990-01-01 00:00:00

abstract：:Although intact fruits of unripe cantaloupe (Cucumis melo L.) produce very little ethylene, a massive increase in ethylene production occurred in response to excision. The evidence indicates that this wound ethylene is produced from methionine via 1-aminocyclopropanecarboxylic acid (ACC) as in ripening fruits. Excisio...

journal_title：Plant physiology

authors： Hoffman NE,Yang SF

更新日期：1982-02-01 00:00:00

abstract：:Phytohemagglutinin, the lectin of the common bean Phaseolus vulgaris, has a high mannose and a modified (fucosylated) oligosaccharide on each polypeptide. Fractionation by high performance liquid chromatography of tryptic digests of [(3)H]fucose or [(3)H]glucosamine labeled phytohemagglutinin, followed by amino acid s...

journal_title：Plant physiology

authors： Sturm A,Chrispeels MJ

更新日期：1986-05-01 00:00:00

abstract：:AtATM3, an ATP-binding cassette transporter of Arabidopsis (Arabidopsis thaliana), is a mitochondrial protein involved in the biogenesis of iron-sulfur clusters and iron homeostasis in plants. Our gene expression analysis showed that AtATM3 is up-regulated in roots of plants treated with cadmium [Cd(II)] or lead (II);...

journal_title：Plant physiology

authors： Kim DY,Bovet L,Kushnir S,Noh EW,Martinoia E,Lee Y

更新日期：2006-03-01 00:00:00

abstract：:Carotenoids are essential pigments of the photosynthetic apparatus and an indispensable component of the human diet. In addition to being potent antioxidants, they also provide the vitamin A precursor beta-carotene. In tomato (Solanum lycopersicum) fruits, carotenoids accumulate in specialized plastids, the chromoplas...

journal_title：Plant physiology

authors： Apel W,Bock R

更新日期：2009-09-01 00:00:00

abstract：:Restoration of oxygenated conditions following 15 minutes to 2 hours of anoxia causes light-grown pea (Pisum sativum L. var. Alaska) stem segments to elongate 100 to 200% more than continuously aerated segments. This "emergent growth" response takes place in the presence of 5 mm F(-), an inhibitor of anaerobic respira...

journal_title：Plant physiology

authors： Parrish DJ,Davies PJ

更新日期：1977-04-01 00:00:00

abstract：:Recent advances in the development of methods for measuring cytoplasmic Ca(2+) levels in higher plant cells are discussed. Emphasis is placed on the new generation of Ca(2+)-sensitive fluorescent dyes particularly fura-2 and indo-1. These dyes offer many advantages for the measurement of cytosolic Ca(2+) levels. They ...

journal_title：Plant physiology

authors： Bush DS,Jones RL

更新日期：1990-07-01 00:00:00

abstract：:ATP:citrate lyase (ACL) catalyzes the conversion of citrate to acetyl-coenzyme A (CoA) and oxaloacetate and is a key enzyme for lipid accumulation in mammals and oleaginous yeasts and fungi. To investigate whether heterologous ACL genes can be targeted and imported into the plastids of plants, a gene encoding a fusion...

journal_title：Plant physiology

authors： Rangasamy D,Ratledge C

更新日期：2000-04-01 00:00:00

abstract：:The effect of abscisic acid (ABA) on the exudation process in excised sunflower root was investigated. A promotion of both ion flux and volume exudation rate was observed. Cutting off the external supply of ions to the roots markedly increased the magnitude of the ABA effect. The promotive effect of ABA on exudation r...

journal_title：Plant physiology

authors： Glinka Z

更新日期：1980-03-01 00:00:00

abstract：:A comparison of barley (Hordeum vulgare L.) leaves was made between the cytosolic content of amino acids and sucrose as determined by subcellular fractionation and the corresponding concentration in phloem sap, which was collected continuously for up to 6 days from severed aphid stylets. Because amino acids were found...

journal_title：Plant physiology

authors： Winter H,Lohaus G,Heldt HW

更新日期：1992-07-01 00:00:00

abstract：:The relative efficiency (RE) of N(2) fixation (RE = 1 - [H(2) evolved in air]/[acetylene reduced]) was investigated in a Rhizobium strain lacking uptake hydrogenase activity (Hup(-)). Variation in RE of such strains presumably reflects changes in the electron allocation coefficient of nitrogenase. By artificially exte...

journal_title：Plant physiology

authors： Edie SA,Phillips DA

更新日期：1983-05-01 00:00:00

abstract：:Symbiosome membrane vesicles, facing bacteroid-side-out, were purified from pea (Pisum sativum L.) root nodules and used to study NH4+ transport across the membrane by recording vesicle uptake of the NH4+ analog [14C]methylamine (MA). Membrane potentials ([delta][psi]) were imposed on the vesicles using K+ concentrati...

journal_title：Plant physiology

authors： Mouritzen P,Rosendahl L

更新日期：1997-10-01 00:00:00

abstract：:The inhibitory effect of NH4+ on net NO3- uptake has been attributed to an enhancement of efflux and, recently, to an inhibition of influx. To study this controversy, we devised treatments to distinguish the effects of NH4+ on these two processes. Roots of intact barley (Hordeum vulgare L.) seedlings, uninduced or ind...

journal_title：Plant physiology

authors： Aslam M,Travis RL,Huffaker RC

更新日期：1994-12-01 00:00:00

abstract：:A synthetic green fluorescent protein (GFP) gene (pgfp) was constructed to improve GFP expression in plants. Corn and tobacco protoplast transient assays showed that pgfp gave about 20-fold brighter fluorescence than the wild-type gene (gfp). Replacement of the serine at position 65 with a threonine (S65Tpgfp) or a cy...

journal_title：Plant physiology

authors： Pang SZ,DeBoer DL,Wan Y,Ye G,Layton JG,Neher MK,Armstrong CL,Fry JE,Hinchee MA,Fromm ME

更新日期：1996-11-01 00:00:00

abstract：:Plant viruses utilize the vascular system for systemic movement. The plant vascular network also transports water, photosynthates, and signaling molecules and is essential for plant growth. However, the molecular mechanisms governing vascular development and patterning are still largely unknown. From viral transport s...

journal_title：Plant physiology

authors： Jin H,Li S,Villegas A Jr

更新日期：2006-10-01 00:00:00

abstract：:The cell separation aspect of abscission is thought to involve the action of specific cell wall degrading enzymes. Enzymes represent synthesis which in turn is preceded by the synthesis of specific RNA molecules, and it follows that inhibition of either of these processes would also block abscission. Since abscission ...

journal_title：Plant physiology

authors： Abeles FB

更新日期：1968-09-01 00:00:00

abstract：:Tryptophan decarboxylase (TDC) is a cytosolic enzyme that catalyzes an early step of the terpenoid indole alkaloid biosynthetic pathway by decarboxylation of L-tryptophan to produce the protoalkaloid tryptamine. In the present study, recombinant TDC was targeted to the chloroplast, cytosol, and endoplasmic reticulum (...

journal_title：Plant physiology

authors： Di Fiore S,Li Q,Leech MJ,Schuster F,Emans N,Fischer R,Schillberg S

更新日期：2002-07-01 00:00:00

abstract：:The ripening of a fleshy fruit represents the summation of an array of biochemical processes that are regulated by interactions between developmental programs and environmental inputs. Analysis of tomato (Solanum lycopersicum) mutants and inhibitor studies indicate that ethylene is necessary for full development of th...

journal_title：Plant physiology

authors： Barry CS,McQuinn RP,Thompson AJ,Seymour GB,Grierson D,Giovannoni JJ

更新日期：2005-05-01 00:00:00

abstract：:Transcription of the Arabidopsis thaliana gene encoding ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) activase (RCA) is organ-specific, light-responsive, and regulated by the circadian clock. RCA is transcribed throughout the green parts of the plant, but not in roots and petals. Responses elicited by shor...

journal_title：Plant physiology

authors： Liu Z,Taub CC,McClung CR

更新日期：1996-09-01 00:00:00

abstract：:Water conductance through Abies amabilis seedlings was measured while the roots were exposed to temperatures from 15 to 0.25 degrees C. Before conductance was measured, the seedlings were preconditioned for 3 months at either a high temperature (23 degrees C) or a low temperature (3 degrees C). For both groups of seed...

journal_title：Plant physiology

authors： Teskey RO,Hinckley TM,Grier CC

更新日期：1984-01-01 00:00:00

abstract：:Phytochrome wild-type gene-[beta]-glucuronidase (PHY-GUS) gene fusions were used in transgenic Arabidopsis to compare the activity levels and light regulation of the PHYA and PHYB promoters and to identify the photoreceptors mediating this regulation. In dark-grown seedlings, both promoters are 4-fold more active in s...

journal_title：Plant physiology

authors： Somers DE,Quail PH

更新日期：1995-02-01 00:00:00

abstract：:Despite its important functions in plant physiology and defense, the membrane transport mechanism of salicylic acid (SA) is poorly documented due to the general assumption that SA is taken up by plant cells via the ion trap mechanism. Using Ricinus communis seedlings and modeling tools (ACD LogD and Vega ZZ softwares)...

journal_title：Plant physiology

authors： Rocher F,Chollet JF,Legros S,Jousse C,Lemoine R,Faucher M,Bush DR,Bonnemain JL

更新日期：2009-08-01 00:00:00

abstract：:Some clones of Spirodela polyrrhiza form dormant bodies called turions which require several weeks of chilling treatment before they proceed to renew growth and develop into vegetative fronds. The individual fronds of Spirodela are less than 5 mm long and can be grown aseptically in liquid culture. Turion formation an...

journal_title：Plant physiology

authors： Perry TO

更新日期：1968-11-01 00:00:00