Depolarization-Activated K+ Channel in Chara Droplets.

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：:This study aims to elucidate the molecular mechanism of an alternative electron flow (AEF) functioning under suppressed (CO2-limited) photosynthesis in the cyanobacterium Synechocystis sp. PCC 6803. Photosynthetic linear electron flow, evaluated as the quantum yield of photosystem II [Y(II)], reaches a maximum shortly...

journal_title：Plant physiology

authors： Shimakawa G,Shaku K,Nishi A,Hayashi R,Yamamoto H,Sakamoto K,Makino A,Miyake C

更新日期：2015-02-01 00:00:00

abstract：:Winter- and summertime-active desert annual species were grown at different temperatures to assess their capacity for photosynthetic acclimation. Thermal stability of photosynthesis was determined from responses of chlorophyll fluorescence to increased temperature. Photosynthesis in winter ephemerals grown at 28 degre...

journal_title：Plant physiology

authors： Downton WJ,Berry JA,Seemann JR

更新日期：1984-04-01 00:00:00

abstract：:A large portion of the volatile organic compounds emitted by plants are oxygenated to yield reactive carbonyl species, which have a big impact on atmospheric chemistry. Deposition to vegetation driven by the absorption of reactive carbonyl species into plants plays a major role in cleansing the atmosphere, but the mec...

journal_title：Plant physiology

authors： Muramoto S,Matsubara Y,Mwenda CM,Koeduka T,Sakami T,Tani A,Matsui K

更新日期：2015-11-01 00:00:00

abstract：:Steady state rates of NADP reduction decline upon commencement of nitrite reduction in reconstituted chloroplast preparations. Similarly, steady state rates of nitrite reduction are lower, but not zero, during concurrent NADP reduction. These results imply that competition for substrate occurs and suggest that nitrite...

journal_title：Plant physiology

authors： Baysdorfer C,Robinson JM

更新日期：1985-02-01 00:00:00

abstract：:In many plant species, a subset of the genes of the chloroplast genome is transcribed by RpoTp, a nuclear-encoded plastid-targeted RNA polymerase. Here, we describe the positional cloning of the SCABRA3 (SCA3) gene, which was found to encode RpoTp in Arabidopsis (Arabidopsis thaliana). We studied one weak (sca3-1) and...

journal_title：Plant physiology

authors： Hricová A,Quesada V,Micol JL

更新日期：2006-07-01 00:00:00

abstract：:L-myo-inositol 1-phosphate synthase (EC 5.5.1.4) from cyanobacterial (Spirulina platensis), algal (Euglena gracilis), and higher plant (Oryza sativa, Vigna radiata) sources was purified to electrophoretic homogeneity, biochemically characterized, and compared. Both chloroplastic and cytosolic forms of the enzyme were ...

journal_title：Plant physiology

authors： RayChaudhuri A,Hait NC,Dasgupta S,Bhaduri TJ,Deb R,Majumder AL

更新日期：1997-10-01 00:00:00

abstract：:Using tissue blotting and immunocytolocalization, we have investigated the appearance and accumulation of polygalacturonase (PG) during tomato (Lycopersicon esculentum Mill.) fruit ripening. Results show that PG first appears in the collumella region followed by sequential appearance in the exopericarp and endopericar...

journal_title：Plant physiology

authors： Tieman DM,Handa AK

更新日期：1989-05-01 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：:Partitioning and translocation of (14)C-photosynthates were examined during flowering and seed maturation in soybean (Glycine max [L.]Merr.) plants to quantify allocation to sugars, amino acids, organic acids, and starch and to study transport of C and N from leaves to reproductive sinks. The trifoliolate leaf at the ...

journal_title：Plant physiology

authors： Koch KE,Schrader LE

更新日期：1984-08-01 00:00:00

abstract：:Pyridine nucleotide pools were measured in intact plastids from roots of barley (Hordeum vulgare L.) during the onset of NO2- assimilation and compared with the in vitro effect of the NADPH/NADP ratio on the activity of plastidic glucose-6-phosphate dehydrogenase (G6PDH, EC 1.1.1.49) from N-sufficient or N-starved roo...

journal_title：Plant physiology

authors： Wright DP,Huppe HC,Turpin DH

更新日期：1997-08-01 00:00:00

abstract：:Nitrogen is an essential macronutrient required for plant growth and development. A number of genes respond to nitrogen starvation conditions. However, the functions of most of these nitrogen starvation-responsive genes are unclear. Our recent survey suggested that many microRNAs (miRNAs) are responsive to nitrogen st...

journal_title：Plant physiology

authors： He H,Liang G,Li Y,Wang F,Yu D

更新日期：2014-02-01 00:00:00

abstract：:The linear response of photosynthesis to light at low photon flux densities is known to change abruptly in the vicinity of the light compensation point so that the quantum yield seems to decrease as radiation increases. We studied this ;Kok effect' in attached sunflower (Helianthus annuus L. cv IS894) leaves using gas...

journal_title：Plant physiology

authors： Sharp RE,Matthews MA,Boyer JS

更新日期：1984-05-01 00:00:00

abstract：:Pollen germination, along with pollen tube growth, is an essential process for the reproduction of flowering plants. The germinating pollen with tip-growth characteristics provides an ideal model system for the study of cell growth and morphogenesis. As an essential step toward a detailed understanding of this importa...

journal_title：Plant physiology

authors： Wang Y,Zhang WZ,Song LF,Zou JJ,Su Z,Wu WH

更新日期：2008-11-01 00:00:00

abstract：:In Solanaceae, the S-specific interaction between the pistil S-RNase and the pollen S-Locus F-box protein controls self-incompatibility (SI). Although this interaction defines the specificity of the pollen rejection response, the identification of three pistil essential modifier genes unlinked to the S-locus (HT-B, 12...

journal_title：Plant physiology

authors： García-Valencia LE,Bravo-Alberto CE,Wu HM,Rodríguez-Sotres R,Cheung AY,Cruz-García F

更新日期：2017-11-01 00:00:00

abstract：:After cold treatment of seedlings of winter wheat (Triticum aestivum L.), levels of hydrogen peroxide in the leaves were measured. The concentration of hydrogen peroxide increased to about three times the control level within a few minutes, and returned to the normal level in 15 to 20 minutes. The elevated level of hy...

journal_title：Plant physiology

authors： Okuda T,Matsuda Y,Yamanaka A,Sagisaka S

更新日期：1991-11-01 00:00:00

abstract：:Synchronous cell division in Euglena gracilis (strain Z) was obtained in 24-hour light cycles consisting of 10 hours of light and 14 hours of darkness; cell division was restricted to the dark period. Photosynthetic capacity was found to vary in a cyclic manner during the cell cycle, reaching a peak 2 hours before the...

journal_title：Plant physiology

authors： Walther WG,Edmunds LN

更新日期：1973-02-01 00:00:00

abstract：:The light dependence of D1 phosphorylation is unique to higher plants, being constitutive in cyanobacteria and algae. In a photoautotrophic higher plant, Spirodela oligorrhiza, grown in greenhouse conditions under natural diurnal cycles of solar irradiation, the ratio of phosphorylated versus total D1 protein (D1-P in...

journal_title：Plant physiology

authors： Booij-James IS,Swegle WM,Edelman M,Mattoo AK

更新日期：2002-12-01 00:00:00

abstract：:In Arabidopsis, phytochrome A (phyA) is the major photoreceptor both for high irradiance responses to far-red light and broad spectrum very low fluence responses, but little is known of its signaling pathway(s). rsf1 was isolated as a recessive mutant with reduced sensitivity to far-red inhibition of hypocotyl elongat...

journal_title：Plant physiology

authors： Fankhauser C,Chory J

更新日期：2000-09-01 00:00:00

abstract：:Using a genetic approach, we have identified and characterized a novel protein, named Msf1 (Maintenance factor for photosystem I), that is required for the maintenance of specific components of the photosynthetic apparatus in the green alga Chlamydomonas reinhardtii Msf1 belongs to the superfamily of light-harvesting ...

journal_title：Plant physiology

authors： Zhao L,Cheng D,Huang X,Chen M,Dall'Osto L,Xing J,Gao L,Li L,Wang Y,Bassi R,Peng L,Wang Y,Rochaix JD,Huang F

更新日期：2017-08-01 00:00:00

abstract：:The Arabidopsis (Arabidopsis thaliana) MKK1 and MKK2 mitogen-activated protein kinase kinases have been implicated in biotic and abiotic stress responses as part of a signaling cascade including MEKK1 and MPK4. Here, the double loss-of-function mutant (mkk1/2) of MKK1 and MKK2 is shown to have marked phenotypes in dev...

journal_title：Plant physiology

authors： Qiu JL,Zhou L,Yun BW,Nielsen HB,Fiil BK,Petersen K,Mackinlay J,Loake GJ,Mundy J,Morris PC

更新日期：2008-09-01 00:00:00

abstract：:Ribulose 1,5-bisphosphate in the chloroplast has been suggested to regulate the activity of the ribulose bisphosphate carboxylase/oxygenase. To generate high levels of ribulose bisphosphate, isolated and intact spinach chloroplasts were illuminated in the absence of CO(2). Under these conditions, chloroplasts generate...

journal_title：Plant physiology

authors： Sicher RC,Hatch AL,Stumpf DK,Jensen RG

更新日期：1981-07-01 00:00:00

abstract：:Combined gas chromatography-mass spectrometry has been used to identify indole-3-methanol in a purified buffer extract from etiolated seedlings of Pinus sylvestris L. Quantitative estimates obtained by high performance liquid chromatography with fluorescence detection, corrected for losses occurring during purificatio...

journal_title：Plant physiology

authors： Sundberg B,Sandberg G,Jensen E

更新日期：1985-04-01 00:00:00

abstract：:Folates typically have gamma-linked polyglutamyl tails that make them better enzyme substrates and worse transport substrates than the unglutamylated forms. The tail can be shortened or removed by the vacuolar enzyme gamma-glutamyl hydrolase (GGH). It is known that GGH is active only as a dimer and that plants can hav...

journal_title：Plant physiology

authors： Akhtar TA,McQuinn RP,Naponelli V,Gregory JF 3rd,Giovannoni JJ,Hanson AD

更新日期：2008-10-01 00:00:00

abstract：:Regulation of photosynthetic gene expression by plastid-encoded RNA polymerase (PEP) is essential for chloroplast development. The activity of PEP largely relies on at least 12 PEP-associated proteins (PAPs) encoded in the nuclear genome of plant cells. A recent model proposed that these PAPs regulate the establishmen...

journal_title：Plant physiology

authors： Chang SH,Lee S,Um TY,Kim JK,Do Choi Y,Jang G

更新日期：2017-05-01 00:00:00

abstract：:As a step to understanding how the photoreceptor phytochrome acts to change the transcription of specific nuclear genes in Lemna gibba, we wish to compare promoter elements involved in negative regulation by phytochrome with those involved in positive regulation. We have isolated three genes negatively regulated by ph...

journal_title：Plant physiology

authors： Okubara PA,Williams SA,Doxsee RA,Tobin EM

更新日期：1993-03-01 00:00:00

abstract：:In Ankistrodesmus braunii, in the absence of CO(2), i.e. in CO(2)-free air or N(2), photosynthetic nitrate uptake and nitrate reduction were inhibited, especially at low pH. Under such conditions, glucose stimulated nitrate uptake and reduction to almost the same level in the pH range between 6 and 8.5. CO(2) at 0.03%...

journal_title：Plant physiology

authors： Eisele R,Ullrich WR

更新日期：1977-01-01 00:00:00

abstract：:The phytohormone cytokinin is a regulator of numerous processes in plants. In Arabidopsis (Arabidopsis thaliana), the cytokinin signal is perceived by three membrane-located receptors named ARABIDOPSIS HISTIDINE KINASE2 (AHK2), AHK3, and AHK4/CRE1. How the signal is transmitted across the membrane is an entirely unkno...

journal_title：Plant physiology

authors： Bartrina I,Jensen H,Novák O,Strnad M,Werner T,Schmülling T

更新日期：2017-03-01 00:00:00

abstract：:d-Galactose has been shown to have toxic and growth inhibitory effects in plants. When applied at levels of 50 millimolar to tobacco (Nicotiana tabacum L. cv Xanthi) leaf discs galactose caused a rapid increase in ethylene production during the first 2 days of incubation, followed by a rapid return to the basal level ...

journal_title：Plant physiology

authors： Philosoph-Hadas S,Aharoni N

更新日期：1987-01-01 00:00:00

abstract：:The rates of utilization of exogenously supplied (14)C labeled acids by corn roots was compared to the utilization of these acids generated endogenously in the mitochondria from acetate-(3)H. (14)C-labeled citrate, pyruvate, succinate, glutamate or aspartate were supplied with acetate-(3)H in a 15 minute pulse and the...

journal_title：Plant physiology

authors： Steer BT,Beevers H

更新日期：1967-09-01 00:00:00