Contribution of malic enzyme, pyruvate kinase, phosphoenolpyruvate carboxylase, and the krebs cycle to respiration and biosynthesis and to intracellular pH regulation during hypoxia in maize root tips observed by nuclear magnetic resonance imaging and gas

abstract：:Pod walls of broadbean (Vicia faba L. cv Aguadulce) were harvested at the import (S(1)), at the transition (S(2)) or at the export (S(3)) phase for assimilate transport. Measurements of the transmembrane potential difference (PD) of mesocarp cells were made under various osmotic conditions. Internal osmotic potentials...

journal_title：Plant physiology

authors： Li ZS,Delrot S

更新日期：1987-07-01 00:00:00

abstract：:Polar nuclear migration is crucial during the development of diverse eukaryotes. In plants, root hair growth requires polar nuclear migration into the outgrowing hair. However, knowledge about the dynamics and the regulatory mechanisms underlying nuclear movements in root epidermal cells remains limited. Here, we show...

journal_title：Plant physiology

authors： Nakamura M,Claes AR,Grebe T,Hermkes R,Viotti C,Ikeda Y,Grebe M

更新日期：2018-01-01 00:00:00

abstract：:Late maturity α-amylase (LMA) is a genetic defect that is commonly found in bread wheat (Triticum aestivum) cultivars and can result in commercially unacceptably high levels of α-amylase in harvest-ripe grain in the absence of rain or preharvest sprouting. This defect represents a serious problem for wheat farmers, an...

journal_title：Plant physiology

authors： Barrero JM,Mrva K,Talbot MJ,White RG,Taylor J,Gubler F,Mares DJ

更新日期：2013-03-01 00:00:00

abstract：:In eukaryotes, the regulated transport of mRNAs from the nucleus to the cytosol through nuclear pore complexes represents an important step in the expression of protein-coding genes. In plants, the mechanism of nucleocytosolic mRNA transport and the factors involved are poorly understood. The Arabidopsis (Arabidopsis ...

journal_title：Plant physiology

authors： Ehrnsberger HF,Pfaff C,Hachani I,Flores-Tornero M,Sørensen BB,Längst G,Sprunck S,Grasser M,Grasser KD

更新日期：2019-04-01 00:00:00

abstract：:The citrate carrier from maize (Zea mays) shoot mitochondria was solubilized with Triton X-100 and purified by sequential chromatography on hydroxyapatite and hydroxyapatite/celite in the presence of cardiolipin. SDS-gel electrophoresis of the purified fraction showed a single polypeptide band with an apparent molecul...

journal_title：Plant physiology

authors： Genchi G,Spagnoletta A,De Santis A,Stefanizzi L,Palmieri F

更新日期：1999-07-01 00:00:00

abstract：:Receptor-like kinases (RLKs) are the largest family of proteins in plants and are responsible for perceiving the vast majority of extracellular stimuli. Thus, RLKs function in diverse processes, including sensing pathogen attacks, regulating symbiotic interactions, transducing hormone and peptide signals, and monitori...

journal_title：Plant physiology

authors： Hurst CH,Turnbull D,Myles SM,Leslie K,Keinath NF,Hemsley PA

更新日期：2018-06-01 00:00:00

abstract：:The rates of oxidation of ent-kaur-16-ene to ent-kaur-16-en-19-ol, ent-kaur-16-en-19-al, ent-kaur-16-en-19-oic acid, and ent-kaur-16-en-7alpha-ol-19-oic acid are maximal in microsomes prepared from the endosperm of immature Marah macrocarpus seeds in which the cotyledons are approximately one-half the overall length o...

journal_title：Plant physiology

authors： Hasson EP,West CA

更新日期：1976-10-01 00:00:00

abstract：:The effects of the diphenyl ether herbicides HOE 29152 (methyl-2[4-(4-trifluoromethoxy) phenoxy] propanoate) and nitrofluorfen (2-chloro-1-[4-nitrophenoxy]-4-[trifluoromethyl]benzene) on photosynthetic electron transport have been examined with pea seedling and spinach chloroplasts. Linear electron transport (water to...

journal_title：Plant physiology

authors： Bugg MW,Whitmarsh J,Rieck CE,Cohen WS

更新日期：1980-01-01 00:00:00

abstract：:Evidence that indoleacetic acid (IAA) conjugates are metabolized via enzyme-catalyzed hydrolysis to free IAA and that their biological activities are related to the rates at which they are hydrolyzed by the tissue is presented. These conclusions are based on the following observations. Slow but continuous decarboxylat...

journal_title：Plant physiology

authors： Hangarter RP,Good NE

更新日期：1981-12-01 00:00:00

abstract：:The effect of vanadate on the plant plasma membrane ATPase were investigated in plasma membrane fractions derived from corn roots (Zea mays L.) and red beets (Beta vulgaris L.). The K(i) for vanadate inhibition of the plasma membrane ATPase from corn roots and red beets was between 6 and 15 micromolar vanadate. In bot...

journal_title：Plant physiology

authors： O'neill SD,Spanswick RM

更新日期：1984-07-01 00:00:00

abstract：:Stem cold hardening developed to different levels in citrus types tested in controlled environments. Exotherms indicated ice spread was more uniform and rapid in unhardened than in cold-hardened stems. All attempts to inhibit the functioning of citrus leaves resulted in less cold hardening in the stems. Citrus leaves ...

journal_title：Plant physiology

authors： Yelenosky G

更新日期：1975-10-01 00:00:00

abstract：:This work tested one aspect of the relations between membrane permeability and fruit ripening. Membrane permeability was measured as [(3)H]water efflux rate from preloaded fruit pericarp disks. Different stages of fruit development were compared between two tomato (Lycopersicon esculentum Mill) strains: the normal Rut...

journal_title：Plant physiology

authors： Poovaiah BW,Mizrahi Y,Dostal HC,Cherry JH,Leopold AC

更新日期：1975-12-01 00:00:00

abstract：:Signals can be perceived and amplified at the cell membrane by receptors coupled to the production of a variety of second messengers, including myoinositol 1,4,5-trisphosphate [Ins(1,4,5)P(3)]. The myoinositol polyphosphate 5-phosphatases (5PTases; EC 3.1.3.56) comprise a large protein family that hydrolyzes 5-phospha...

journal_title：Plant physiology

authors： Gunesekera B,Torabinejad J,Robinson J,Gillaspy GE

更新日期：2007-03-01 00:00:00

abstract：:Despite ongoing research on carotenoid biosynthesis in model organisms, there is a paucity of information on pathway regulation operating in the grasses (Poaceae), which include plants of world-wide agronomic importance. As a result, efforts to either breed for or metabolically engineer improvements in carotenoid cont...

journal_title：Plant physiology

authors： Gallagher CE,Matthews PD,Li F,Wurtzel ET

更新日期：2004-07-01 00:00:00

abstract：:The rate of adaptation of high CO(2) (5% v/v CO(2) in air)-grown Anabaena to a low level of CO(2) (0.05% v/v in air) was determined as a function of O(2) concentration. Exposure of cells to low (2.6%) O(2) concentration resulted in an extended lag in the adaptation to low CO(2) concentration. The rate of adaptation fo...

journal_title：Plant physiology

authors： Marcus Y,Harel E,Kaplan A

更新日期：1983-01-01 00:00:00

abstract：:The first committed step in the conversion of cycloartenol into Delta(5) C24-alkyl sterols in plants is catalyzed by an S-adenosyl-methionine-dependent sterol-C24-methyltransferase type 1 (SMT1). We report the consequences of overexpressing SMT1 in tobacco (Nicotiana tabacum), under control of either the constitutive ...

journal_title：Plant physiology

authors： Holmberg N,Harker M,Gibbard CL,Wallace AD,Clayton JC,Rawlins S,Hellyer A,Safford R

更新日期：2002-09-01 00:00:00

abstract：:Chloroplastic and cytoplasmic forms of pea (Pisum sativum L.) leaf glucose-6-P dehydrogenase can be separated by gel electrophoresis. Both forms are found in etiolated seedlings. When light-grown plants are illuminated or when crude extracts are treated with dithiothreitol, the chloroplastic and cytoplasmic forms of t...

journal_title：Plant physiology

authors： Anderson LE,Ng TC,Park KE

更新日期：1974-06-01 00:00:00

abstract：:Programmed cell death (PCD) is essential for several aspects of plant life, including development and stress responses. Indeed, incompatible plant-pathogen interactions are well known to induce the hypersensitive response, a localized cell death. Mutational analyses have identified several key PCD components, and we r...

journal_title：Plant physiology

authors： Bruggeman Q,Garmier M,de Bont L,Soubigou-Taconnat L,Mazubert C,Benhamed M,Raynaud C,Bergounioux C,Delarue M

更新日期：2014-06-01 00:00:00

abstract：:The OsCPK4 gene is a member of the complex gene family of calcium-dependent protein kinases in rice (Oryza sativa). Here, we report that OsCPK4 expression is induced by high salinity, drought, and the phytohormone abscisic acid. Moreover, a plasma membrane localization of OsCPK4 was observed by transient expression as...

journal_title：Plant physiology

authors： Campo S,Baldrich P,Messeguer J,Lalanne E,Coca M,San Segundo B

更新日期：2014-06-01 00:00:00

abstract：:Energy dispersive x-ray analysis was used to study the composition of certain protein body components in Cucurbita maxima cotyledons. The globoid crystal was rich in phosphorus, potassium, and magnesium. This elemental composition provides further evidence that the globoid crystal in squash cotyledon protein bodies is...

journal_title：Plant physiology

authors： Lott JN

更新日期：1975-05-01 00:00:00

abstract：:The breakdown of sucrose to feed both hexoses into glycolytic carbon flow can occur by the sucrose synthase pathway. This uridine diphosphate (UDP) and pyrophosphate (PPi)-dependent pathway was biochemically characterized using soluble extracts from several plants. The sucrolysis process required the simultaneous pres...

journal_title：Plant physiology

authors： Xu DP,Sung SJ,Loboda T,Kormanik PP,Black CC

更新日期：1989-06-01 00:00:00

abstract：:Phenol inhibits the Hill reaction with several Hill oxidants and the accompanying non-cyclic phosphorylation. It inhibits also pseudocyclic and cyclic phosphorylation. Partial reactions which are dependent on cyclic electron flow are inhibited too, but electron flow from ascorbate via dichlorophenolindophenol to TPN i...

journal_title：Plant physiology

authors： Neumann J,Drechsler Z

更新日期：1967-04-01 00:00:00

abstract：:A monoclonal antibody raised against carboxyl-linked IAA was used in Western blot analysis of storage proteins from kernels of Avena sativa, Pennisetum americanum, Sorghum bicolor, and Zea mays. IAA or an IAA-like molecule is associated with the ethanolsoluble protein fraction of the seed. Western blotting of commerci...

journal_title：Plant physiology

authors： Leverone LA,Stroup TL,Caruso JL

更新日期：1991-08-01 00:00:00

abstract：:The vascular cambium produces secondary xylem and phloem in plants and is responsible for wood formation in forest trees. In this study we used a microscale mass-spectrometry technique coupled with cryosectioning to visualize the radial concentration gradient of endogenous indole-3-acetic acid (IAA) across the cambial...

journal_title：Plant physiology

authors： Uggla C,Mellerowicz EJ,Sundberg B

更新日期：1998-05-01 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：:Net photosynthetic rates of Spirodela polyrrhiza turions, at low O(2) levels, were 6.2 and 38.8 micromoles O(2) per gram fresh weight per hour at 1 millimolar HCO(3) (-) and CO(2) saturation, respectively, and much lower in a regular low-pH growth solution. Air equilibration O(2) concentrations decreased rates conside...

journal_title：Plant physiology

authors： Beer S

更新日期：1985-09-01 00:00:00

abstract：:Membrane-associated lipoxygenase from green tomato (Lycopersicon esculentum L. cv Caruso) fruit has been purified 49-fold to a specific activity of 8.3 mumol.min(-1).mg(-1) of protein by solubilization of microsomal membranes with Triton X-100, followed by anion- exchange and size-exclusion chromatography. The apparen...

journal_title：Plant physiology

authors： Bowsher CG,Ferrie BJ,Ghosh S,Todd J,Thompson JE,Rothstein SJ

更新日期：1992-12-01 00:00:00

abstract：:Acetate was incorporated by Chlorella pyrenoidosa into nonvolatile water-soluble compounds (amino acids, organic acids and carbohydrates) with pH optimum between 4 and 5. Incorporation into lipid was maximal at pH 7.5. The proportion of incorporated acetate in lipid was not significantly affected by acetate concentrat...

journal_title：Plant physiology

authors： Yung KH,Mudd JB

更新日期：1966-03-01 00:00:00

abstract：:Red light-induced changes in the gravitropism of roots of Zea mays variety Merit is a very low fluence response with a threshold of 10(-9) moles per square meter and is not reversible by far red light. Blue light also affects root gravitropism but the sensitivity of roots to blue is 50 to 100 times less than to an eq...

journal_title：Plant physiology

authors： Feldman LJ,Briggs WR

更新日期：1987-01-01 00:00:00

abstract：:The effect of controlled trypsin digestion of a calmodulin-stimulated Ca2+-ATPase in low-density intracellular membranes from cauliflower (Brassica oleracea L.) inflorescences was investigated. Ca2+ uptake into vesicles was measured either continuously with the fluorescent Ca2+ indicator Calcium Green-5N or with a rad...

journal_title：Plant physiology

authors： Askerlund P

更新日期：1996-03-01 00:00:00