Chlorophyll a fluorescence and carbon assimilation in developing leaves of light-grown cucumber.

abstract：:In this study the interplay of mitochondria and peroxisomes in photorespiration was simulated in a reconstituted system of isolated mitochondria and peroxisomes from spinach (Spinacia oleracea L.) leaves. The mitochondria oxidizing glycine produced serine, which was reduced in the peroxisomes to glycerate. The require...

journal_title：Plant physiology

authors： Raghavendra AS,Reumann S,Heldt HW

更新日期：1998-04-01 00:00:00

abstract：:The identity and scope of chloroplast and mitochondrial proteases in higher plants has only started to become apparent in recent years. Biochemical and molecular studies suggested the existence of Clp, FtsH, and DegP proteases in chloroplasts, and a Lon protease in mitochondria, although currently the full extent of t...

journal_title：Plant physiology

authors： Adam Z,Adamska I,Nakabayashi K,Ostersetzer O,Haussuhl K,Manuell A,Zheng B,Vallon O,Rodermel SR,Shinozaki K,Clarke AK

更新日期：2001-04-01 00:00:00

abstract：:Uptake of Ca(2+) by suspension-cultured pear (Pyrus communis L. cv Passe Crassane) cells and protoplasts was significantly enhanced by exposure to 38 degrees C compared to 25 degrees C. The increased uptake was specific for Ca(2+) and was not due to cell wall binding. Tissues pretreated at 38 degrees C showed increase...

journal_title：Plant physiology

authors： Klein JD,Ferguson IB

更新日期：1987-05-01 00:00:00

abstract：:The diffusion efficiency of oxygen in the atmosphere, like that of CO2, is approximately 104 times greater than that in aqueous environments. Consequently, terrestrial photosynthetic organisms need mechanisms to protect against potential oxidative damage. The liverwort Marchantia polymorpha, a basal land plant, has ha...

journal_title：Plant physiology

authors： Shimakawa G,Ishizaki K,Tsukamoto S,Tanaka M,Sejima T,Miyake C

更新日期：2017-03-01 00:00:00

abstract：:During the last century, two key hypotheses have been proposed to explain apical dominance in plants: auxin promotes the production of a second messenger that moves up into buds to repress their outgrowth, and auxin saturation in the stem inhibits auxin transport from buds, thereby inhibiting bud outgrowth. The recent...

journal_title：Plant physiology

authors： Brewer PB,Dun EA,Ferguson BJ,Rameau C,Beveridge CA

更新日期：2009-05-01 00:00:00

abstract：:Kinetic characteristics of phosphoenolpyruvate carboxylase (PEPC) from the epiphytic C(3) or C(4): CAM intermediate plant, Peperomia camptotricha, were investigated. Few day versus night differences in V(max),K(m(PEP))), or malate inhibition were observed, even in extracts from water-stressed plants which characterist...

journal_title：Plant physiology

authors： Sipes DL,Ting IP

更新日期：1989-11-01 00:00:00

abstract：:The plant hormone cytokinin stimulates target caulonemata of Funaria to form buds that develop into the leafy gametophyte. Previous reports have shown that increases in intracellular Ca(2+) occur during hormone-activated budding concomitant with an alteration in the polarity of the organelles in the bud site. In order...

journal_title：Plant physiology

authors： Conrad PA,Hepler PK

更新日期：1988-03-01 00:00:00

abstract：:The plant cell wall is a dynamic structure that plays important roles in growth and development and in the interactions of plants with their environment and other organisms. We have used monoclonal antibodies that recognize different carbohydrate epitopes present in plant cell-wall polysaccharides to locate these epit...

journal_title：Plant physiology

authors： Freshour G,Clay RP,Fuller MS,Albersheim P,Darvill AG,Hahn MG

更新日期：1996-04-01 00:00:00

abstract：:Phosphatidylinositol kinase (PI), phosphatidylinositol monophosphate (PIP) kinase, and diacylglycerol (DAG) kinase activities were detected in the cytoskeletal fraction isolated from microsomes and plasma membranes of carrot (Daucus carota L.) cells grown in suspension culture. The lipid kinase activities were associa...

journal_title：Plant physiology

authors： Tan Z,Boss WF

更新日期：1992-12-01 00:00:00

abstract：:Mitochondria were isolated from etiolated corn shoots (Zea mays L.) that were stressed to a measured water potential. The rates of mitochondrial respiration in state III, state IV, and without phosphate or ADP on a milligram protein basis decreased as water stress increased with succinate, malatepyruvate, or reduced n...

journal_title：Plant physiology

authors： Bell DT,Koeppe DE,Miller RJ

更新日期：1971-10-01 00:00:00

abstract：:The thylakoid membrane is a highly complex membrane system in plants and plays crucial roles in the biogenesis of the photosynthetic apparatus and plant development. However, the genetic factors involved in chloroplast development and its relationship with intracellular metabolites are largely unknown. Here, a rice (O...

journal_title：Plant physiology

authors： He Y,Shi Y,Zhang X,Xu X,Wang H,Li L,Zhang Z,Shang H,Wang Z,Wu JL

更新日期：2020-09-01 00:00:00

abstract：:Synechocystis PCC 6803 contains two types of glutathione peroxidase-like proteins (GPX-1 and GPX-2) that utilize NADPH but not reduced glutathione and unsaturated fatty acid hydroperoxides or alkyl hydroperoxides. The steady-state transcript level of gpx-1 gradually increased under oxidative stress conditions imposed ...

journal_title：Plant physiology

authors： Gaber A,Yoshimura K,Tamoi M,Takeda T,Nakano Y,Shigeoka S

更新日期：2004-09-01 00:00:00

abstract：:The plant growth retardant alpha-cyclopropyl-alpha-(4-methyoxyphenyl)-5-pyrimidine methyl alcohol (ancymidol) and a series of analogs of this substance in which one or more of the substituents were varied were tested for their comparative biological activity. The compounds were tested as inhibitors of internode elonga...

journal_title：Plant physiology

authors： Coolbaugh RC,Swanson DI,West CA

更新日期：1982-03-01 00:00:00

abstract：:Relative water content, solute concentrations, and osmolality were determined in the water storage tissue (hydrenchyma) and the assimilatory tissue (chlorenchyma) of the succulent leaves of Peperomia magnoliaefolia (Jac) (Piperaceae) during slow desiccation. Relative water loss was significantly greater for the hydren...

journal_title：Plant physiology

authors： Schmidt JE,Kaiser WM

更新日期：1987-01-01 00:00:00

abstract：:Root and stem segments from soybean (Merrill cv. ;Bragg') showed an enhanced chemiluminescence upon mechanical injury. Roots emitted more light than did stems. Light emission was diminished by CN(-) and N(3) (-) but was not affected by rotenone and antimycin A. Catalase quenched chemiluminescence in wounded root segme...

journal_title：Plant physiology

authors： Salin ML,Bridges SM

更新日期：1981-01-01 00:00:00

abstract：:Oligomeric proanthocyanidins (PAs) composed primarily of epicatechin units accumulate in the seed coats of the model legume Medicago truncatula, reaching maximal levels at around 20 d after pollination. Genes encoding the single Medicago anthocyanidin synthase (ANS; EC 1.14.11.19) and leucoanthocyanidin reductase (LAR...

journal_title：Plant physiology

authors： Pang Y,Peel GJ,Wright E,Wang Z,Dixon RA

更新日期：2007-11-01 00:00:00

abstract：:Rubidium-86 was applied to the terminal 5.0 mm region of intact roots for a 6 hour period. The plants were then harvested after 0, 18, 24, 48, 72, or 96 hours additional growth in a rubidium-free continuously renewed nutrient solution. A substantial portion of the rubidium absorbed in a region of the root devoid of fu...

journal_title：Plant physiology

authors： Steward KK,Koontz HV

更新日期：1968-04-01 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：:ELIPs (early light-induced proteins) are thylakoid proteins transiently induced during greening of etiolated seedlings and during exposure to high light stress conditions. This expression pattern suggests that these proteins may be involved in the protection of the photosynthetic apparatus against photooxidative damag...

journal_title：Plant physiology

authors： Rossini S,Casazza AP,Engelmann EC,Havaux M,Jennings RC,Soave C

更新日期：2006-08-01 00:00:00

abstract：:Various sterols and related steroids were tested for their ability to influence ethanol-induced electrolyte leakage from Hordeum vulgare roots. Cholesterol had the greatest influence and, depending on concentration, it stimulated or inhibited the loss of electrolyte. Cholesterol, however, was ineffective if the roots ...

journal_title：Plant physiology

authors： Grunwald C

更新日期：1974-10-01 00:00:00

abstract：:Diatoms constitute a major phylum of phytoplankton biodiversity in ocean water and freshwater ecosystems. They are known to respond to some chemical variations of the environment by the accumulation of triacylglycerol, but the relative changes occurring in membrane glycerolipids have not yet been studied. Our goal was...

journal_title：Plant physiology

authors： Abida H,Dolch LJ,Meï C,Villanova V,Conte M,Block MA,Finazzi G,Bastien O,Tirichine L,Bowler C,Rébeillé F,Petroutsos D,Jouhet J,Maréchal E

更新日期：2015-01-01 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：:DNA and histone methylation coregulate heterochromatin formation and gene silencing in animals and plants. To identify factors involved in maintaining gene silencing, we conducted a forward genetic screen for mutants that release the silenced transgene Pro35S::NEOMYCIN PHOSPHOTRANSFERASE II in the transgenic Arabidops...

journal_title：Plant physiology

authors： Meng J,Wang L,Wang J,Zhao X,Cheng J,Yu W,Jin D,Li Q,Gong Z

更新日期：2018-06-01 00:00:00

abstract：:Kinetic aspects of ethylene-mediated signal transduction leading to seedling-growth inhibition and chitinase induction in Arabidopsis were investigated by the introduction of defined mutations in components of these pathways. Dose-response analysis of wild-type responses indicated that the rate-limiting steps for seed...

journal_title：Plant physiology

authors： Chen QG,Bleecker AB

更新日期：1995-06-01 00:00:00

abstract：:The changes in root system architecture (RSA) triggered by phosphate (P) deprivation were studied in Arabidopsis (Arabidopsis thaliana) plants grown for 14 d on 1 mM or 3 microM P. Two different temporal phases were observed in the response of RSA to low P. First, lateral root (LR) development was promoted between day...

journal_title：Plant physiology

authors： Nacry P,Canivenc G,Muller B,Azmi A,Van Onckelen H,Rossignol M,Doumas P

更新日期：2005-08-01 00:00:00

abstract：:The stable carbon isotope composition of isoprene emitted from leaves of red oak (Quercus rubra L.) was measured. Isoprene was depleted in (13)C relative to carbon recently fixed by photosynthesis. The difference in isotope composition between recently fixed carbon and emitted isoprene was independent of the isotopic ...

journal_title：Plant physiology

authors： Sharkey TD,Loreto F,Delwiche CF,Treichel IW

更新日期：1991-09-01 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

abstract：:Legume-rhizobia symbiosis is a time-limited process due to the onset of senescence, which results in the degradation of host plant cells and symbiosomes. A number of transcription factors, proteases, and functional genes have been associated with nodule senescence; however, whether other proteases or transcription fac...

journal_title：Plant physiology

authors： Deng J,Zhu F,Liu J,Zhao Y,Wen J,Wang T,Dong J

更新日期：2019-12-01 00:00:00

abstract：:We investigated the synthesis and turnover of cell wall polysaccharides of the flax (Linum usitatissimum L.) plant during development of the phloem fibers. One-month-old flax plants were exposed to a 40-min pulse with 14CO2 followed by 8-h, 24-h, and 1-month periods of chase with ambient CO2, and radioactivity in cell...

journal_title：Plant physiology

authors： Gorshkova TA,Chemikosova SB,Lozovaya VV,Carpita NC

更新日期：1997-06-01 00:00:00

abstract：:Nitrate reductase of the salt-tolerant alga Dunaliella parva could utilize NADPH as well as NADH as an electron donor. The two pyridine nucleotide-dependent activities could not be separated by either ion exchange chromatography on DEAE-cellulose or gel filtration on Sepharose 4B. The NADPH-dependent activity was not ...

journal_title：Plant physiology

authors： Heimer YM

更新日期：1976-07-01 00:00:00