Factors involved in the opening of the hypocotyl hook of cotton and beans.

abstract：:Auxin-deprived, mannitol-supplemented, suspension-cultured pear (Pyrus communis L. Passe Crassane) fruit cells produce large quantities (20-40 nanoliters ethylene per 10(6) cells per hour) of ethylene in response to auxins, CuCl(2) or 1-amino-cyclopropane-1-carboxylic acid (ACC). Maximum rates of production are achiev...

journal_title：Plant physiology

authors： Puschmann R,Romani R

更新日期：1983-12-01 00:00:00

abstract：:Phycoerythrin, a photosynthetic accessory pigment, was isolated from Porphyridium cruentum and examined by electron microscopy and disc gel electrophoresis. The absorption monomer, with maxima at 563, 545, and a shoulder at 500 nm, has a molecular weight of about 300,000. With phosphotungstic acid staining it appears ...

journal_title：Plant physiology

authors： Gantt E

更新日期：1969-11-01 00:00:00

abstract：:To dissect the expression of the psbB gene cluster of the Chlamydomonas reinhardtii chloroplast genome and to assess the role of the photosystem II H-phosphoprotein (PSII-H) in the biogenesis and/or stabilization of PSII, an aadA gene cassette conferring spectinomycin resistance was employed for mutagenesis. Disruptio...

journal_title：Plant physiology

authors： Summer EJ,Schmid VH,Bruns BU,Schmidt GW

更新日期：1997-04-01 00:00:00

abstract：:Grain size is one of the key determinants of grain yield. Although a number of genes that control grain size in rice (Oryza sativa) have been identified, the overall regulatory networks behind this process remain poorly understood. Here, we report the map-based cloning and functional characterization of the quantitati...

journal_title：Plant physiology

authors： Wang A,Hou Q,Si L,Huang X,Luo J,Lu D,Zhu J,Shangguan Y,Miao J,Xie Y,Wang Y,Zhao Q,Feng Q,Zhou C,Li Y,Fan D,Lu Y,Tian Q,Wang Z,Han B

更新日期：2019-08-01 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

authors： Shcolnick S,Summerfield TC,Reytman L,Sherman LA,Keren N

更新日期：2009-08-01 00:00:00

abstract：:The fate of glutamine, the major source of nitrogen supplied to the developing maize endosperm, has been examined in endosperm tissues of corn caryopsis grown under sterile conditions. In the culture system, [U-(14)C]glutamine was included in the medium or was injected directly into the endosperm. Samples were harvest...

journal_title：Plant physiology

authors： Misra S,Oaks A

更新日期：1985-03-01 00:00:00

abstract：:Chronic exposure of hybrid poplar (Populus deltoides x trichocarpa) plants to low concentrations of ozone had negative impact upon net photosynthetic capacity, dark respiration, and leaf chlorophyll contents. Exposure to as much as 0.20 microliters per liter O(3) had no immediate effect on net photosynthesis (P(n)), b...

journal_title：Plant physiology

authors： Reich PB

更新日期：1983-10-01 00:00:00

abstract：:We have used cDNA microarray analysis to examine changes in gene expression during embryo development in soybean (Glycine max) and to compare gene expression profiles of two soybean cultivars that differ in seed isoflavonoid content. The analysis identified 5,910 genes that were differentially expressed in both soybea...

journal_title：Plant physiology

authors： Dhaubhadel S,Gijzen M,Moy P,Farhangkhoee M

更新日期：2007-01-01 00:00:00

abstract：:We examined the consistency of the native diploid Nicotiana attenuata (Na)'s herbivore-induced transcriptional changes in the two allotetraploid natives, Nicotiana clevelandii (Nc) and Nicotiana quadrivalvis (Nq), which are thought to be derived from hybridizations with an ancestral Na. An analysis of nuclear-encoded ...

journal_title：Plant physiology

authors： Qu N,Schittko U,Baldwin IT

更新日期：2004-05-01 00:00:00

abstract：:Mannitol-1-phosphate (M1P) dehydrogenase (M1PDH; EC 1.1.1.17), an enzyme catalyzing the reduction of Fru-6-phosphate (F6P) to M1P in algal mannitol biosynthesis, was purified to homogeneity from a cell homogenate of the eulittoral red alga Caloglossa continua (Okamura) King et Puttock. The enzyme was a monomer with an...

journal_title：Plant physiology

authors： Iwamoto K,Kawanobe H,Ikawa T,Shiraiwa Y

更新日期：2003-10-01 00:00:00

abstract：:The relationship between the state of oligomerization and activity of purified maize leaf phosphoenolpyruvate carboxylase using size exclusion high performance liquid chromatography was examined. Maximum activities of 35 to 38 micromoles per minute per milligram protein were found when 100% of the enzyme was in its te...

journal_title：Plant physiology

authors： Walker GH,Ku MS,Edwards GE

更新日期：1986-04-01 00:00:00

abstract：:Isoamylase-type starch debranching enzymes (ISA) play important roles in starch biosynthesis in chloroplast-containing organisms, as shown by the strict conservation of both catalytically active ISA1 and the noncatalytic homolog ISA2. Functional distinctions exist between species, although they are not understood yet....

journal_title：Plant physiology

authors： Facon M,Lin Q,Azzaz AM,Hennen-Bierwagen TA,Myers AM,Putaux JL,Roussel X,D'Hulst C,Wattebled F

更新日期：2013-11-01 00:00:00

abstract：:Ethylene supplied with indoleacetic acid at 0.1 and 1 mum inhibited elongation and enhanced swelling in epicotyls of decapitated and derooted pea seedlings (Pisum sativum L., var. Alaska). These growth responses were correlated with the development of cell walls rich in weak acid-extractable materials and pectic uroni...

journal_title：Plant physiology

authors： Mondal MH,Nance JF

更新日期：1975-03-01 00:00:00

abstract：:Extracts of maize (Zea mays L.) plants contain substances which, in vitro, inhibit an indoleacetic acid (IAA) oxidase enzyme from maize. The extracts can be freed of inhibitors by dialysis or by passage through columns of polyvinylpyrrolidone powder. Inhibitor-free extracts contain an IAA oxidase enzyme which requires...

journal_title：Plant physiology

authors： Gelinas D,Postlethwait SN

更新日期：1969-11-01 00:00:00

abstract：:Cell-free extracts from greening maize (Zea mays L.) leaves catalyze the conversion of [(14)C]2-ketoglutarate (KG) to [(14)C]5-aminolevulinic acid (ALA) in a reaction which requires NADH and an amino donor and shows maximal activity around pH 6.5. The enzymic system is located in the cytosol. This cell fraction contai...

journal_title：Plant physiology

authors： Harel E,Ne'eman E,Meller E

更新日期：1983-08-01 00:00:00

abstract：:Inactivation of inward-rectifying K+ channels (IK,in) by a rise in cytosolic free [Ca2+] ([Ca2+]i) is a key event leading to solute loss from guard cells and stomatal closure. However, [Ca2+]i action on IK,in has never been quantified, nor are its origins well understood. We used membrane voltage to manipulate [Ca2+]i...

journal_title：Plant physiology

authors： Grabov A,Blatt MR

更新日期：1999-01-01 00:00:00

abstract：:When barley roots absorb Na(+) at concentrations ranging from 1 to 50 mm, in the presence of low concentrations of Ca(2+) and K(+), absorption of Na(+) is mediated by carrier mechanism 2 of alkali cation transport, mechanism 1 being unavailable for Na(+) transport under these conditions. The absorption isotherm depict...

journal_title：Plant physiology

authors： Rains DW,Epstein E

更新日期：1967-03-01 00:00:00

abstract：:The pedicel (basal maternal tissue) of maize (Zea mays L.) kernels contains a physically and kinetically unique form of glutamine synthetase (GSp1) that is involved in the conversion of transport forms of nitrogen into glutamine for uptake by the developing endosperm (M.J. Muhitch [1989] Plant Physiol 91: 868-875). A ...

journal_title：Plant physiology

authors： Muhitch MJ,Felker FC,Taliercio EW,Chourey PS

更新日期：1995-03-01 00:00:00

abstract：:The fatty acid composition of the major lipids of the chloroplast membranes, the mono- and digalactosyl diglycerides, can be definably altered with various substituted pyridazinones. Galactolipid fatty acid composition of wheat (Triticum aestivum L.) can be altered so that there is a decrease in linolenic acid accompa...

journal_title：Plant physiology

authors： John JB

更新日期：1976-01-01 00:00:00

abstract：:We used pulsed-field gel electrophoresis and restriction fragment mapping to analyze the structure of Medicago truncatula chloroplast DNA (cpDNA). We find most cpDNA in genome-sized linear molecules, head-to-tail genomic concatemers, and complex branched forms with ends at defined sites rather than at random sites as ...

journal_title：Plant physiology

authors： Shaver JM,Oldenburg DJ,Bendich AJ

更新日期：2008-03-01 00:00:00

abstract：:An important part in the understanding of the regulation of carbon partitioning within the leaf is to investigate the endogenous variations of parameters related to carbon metabolism. This study of diurnal changes in the activities of sucrose-synthesizing enzymes and levels of nonstructural carbohydrates in intact lea...

journal_title：Plant physiology

authors： Cheikh N,Brenner ML

更新日期：1992-11-01 00:00:00

abstract：:When Ribulose- 1,5-bisphosphate carboxylase/oxygenase was purified from spinach leaves (Spinacia oleracea) using precipitation with polyethylene glycol and MgCl(2) followed by DEAE cellulose chromatography, 75% of phosphoribulokinase and 7% of phosphoriboisomerase activities copurified with ribulose- 1,5-bisphosphate ...

journal_title：Plant physiology

authors： Sainis JK,Merriam K,Harris GC

更新日期：1989-01-01 00:00:00

abstract：:Experiments were designed to test the hypothesis that the labeled products recovered from plant tissue incubated with [(14)C]GA(12)-7-aldehyde ([(14)C]GA(12)ald) would serve as appropriate [(14)C]markers for the recovery of naturally-occurring gibberellins (GAs). The [(14)C]GA(12)ald (about 200 millicuries per millimo...

journal_title：Plant physiology

authors： Maki SL,Brenner ML,Birnberg PR,Davies PJ,Krick TP

更新日期：1986-08-01 00:00:00

abstract：:Plants are able to integrate exogenous 1-deoxy-D-xylulose (DX) into the 2C-methyl-D-erythritol 4-phosphate pathway, implicated in the biosynthesis of plastidial isoprenoids. Thus, the carbohydrate needs to be phosphorylated into 1-deoxy-D-xylulose 5-phosphate and translocated into plastids, or vice versa. An enzyme ca...

journal_title：Plant physiology

authors： Hemmerlin A,Tritsch D,Hartmann M,Pacaud K,Hoeffler JF,van Dorsselaer A,Rohmer M,Bach TJ

更新日期：2006-10-01 00:00:00

abstract：:The amination of alpha-ketoglutarate (alpha-KG) by NADH-glutamate dehydrogenase (GDH) obtained from Sephadex G-75 treated crude extracts from shoots of 5-day-old seedlings was stimulated by the addition of Ca(2+). The NADH-GDH purified 161-fold with ammonium sulfate, DEAE-Toyopearl, and Sephadex G-200 was also activat...

journal_title：Plant physiology

authors： Yamaya T,Oaks A,Matsumoto H

更新日期：1984-12-01 00:00:00

abstract：:The effect of light intensity on the rates of ammonium and nitrate uptake and of CO(2) fixation has been determined in intact Anacystis nidulans cells. Ammonium uptake became saturated at photon flux values of about 60 microeinsteins per square meter per second, whereas both nitrate uptake and CO(2) fixation reached s...

journal_title：Plant physiology

authors： Lara C,Romero JM

更新日期：1986-06-01 00:00:00

abstract：:Homoserine dehydrogenase is associated with the multibranched pathway of amino acid biosynthesis originating with aspartic acid. Like most of the related pathway enzymes, this enzyme is localized in chloroplasts. The activity and regulatory properties of the threonine-sensitive isozyme of homoserine dehydrogenase isol...

journal_title：Plant physiology

authors： Bryan JK

更新日期：1990-03-01 00:00:00

abstract：:To determine whether the detergent-solubilized and purified vacuolar H(+)-ATPase from plants was active in H(+) transport, we reconstituted the purified vacuolar ATPase from oat roots (Avena sativa var Lang). Triton-solubilized ATPase activity was purified by gel filtration and ion exchange chromatography. Incorporati...

journal_title：Plant physiology

authors： Ward JM,Sze H

更新日期：1992-07-01 00:00:00

abstract：:Expression of a beta-amylase gene of Arabidopsis thaliana (AT beta-Amy) is regulated by sugars. We identified a mutant, hba1, in which the level of expression of AT beta-Amy in leaves of plants that had been grown in a medium with 2% sucrose was significantly higher than that in wild-type plants. Higher that wild-type...

journal_title：Plant physiology

authors： Mita S,Hirano H,Nakamura K

更新日期：1997-06-01 00:00:00

abstract：:Barley (Hordeum vulgare L. Himalaya) mutants with altered grain morphology were isolated to investigate whether defects in grain development, possibly involving gibberellins (GAs) and abscisic acid, would lead to altered patterns of [alpha]-amylase gene expression. Following treatment with sodium azide, 75 mutants, ty...

journal_title：Plant physiology

authors： Green LS,Faergestad EM,Poole A,Chandler PM

更新日期：1997-05-01 00:00:00