CO(2) Metabolism in Corn Roots. III. Inhibition of P-enolpyruvate Carboxylase by l-malate.

abstract：:Using novel specially designed instrumentation, fluorescence emission spectra were recorded from Arabidopsis (Arabidopsis thaliana) leaves during the induction period of dark to high-light adaptation in order to follow the spectral changes associated with the formation of nonphotochemical quenching. In addition to an ...

journal_title：Plant physiology

authors： Lambrev PH,Nilkens M,Miloslavina Y,Jahns P,Holzwarth AR

更新日期：2010-03-01 00:00:00

abstract：:The present report shows that the effect of red and far red light on the synthesis of phenylalanine ammonia-lyase can be ascribed to the action of phytochrome Pfr. This is true not only for short term irradiation but also for the action of continuous far red light. In the latter case, the model worked out by Hartmann ...

journal_title：Plant physiology

authors： Schopfer P,Mohr H

更新日期：1972-01-01 00:00:00

abstract：:Hydrogen and carbon isotope ratios of cellulose nitrate and oxygen isotope ratios of cellulose from C(3), C(4), and Crassulacean acid metabolism (CAM) plants were determined for plants growing within a small area in Val Verde County, Texas. Plants having CAM had distinctly higher deuterium/hydrogen (D/H) ratios than p...

journal_title：Plant physiology

authors： Sternberg LO,Deniro MJ,Johnson HB

更新日期：1984-03-01 00:00:00

abstract：:Respiratory control ratios between 2.0 and 9.0 were obtained by comparison of the respiratory rates of cabbage mitochondria in the presence and in the absence of individual components of the system used to provide ADP and by comparing the rates before and after exhaustion of added ADP. These results indicate that resp...

journal_title：Plant physiology

authors： Lotlikar PD,Remmert LF

更新日期：1968-03-01 00:00:00

abstract：:Fresh weight, protein, cysteine, [gamma]-glutamylcysteine, glutathione, and the extractable activity of the enzymes of glutathione biosynthesis, [gamma]-glutamylcysteine synthetase (EC 6.3.2.2) and glutathione synthetase (EC 6.3.2.3), were measured in roots, scutella, endosperms, and shoots of 3-, 7-, and 11-d-old mai...

journal_title：Plant physiology

authors： Ruegsegger A,Brunold C

更新日期：1993-02-01 00:00:00

abstract：:The resistance to the diffusion of heat and water vapor external to a leaf, can be derived from measurement of the rate of change of the leaf temperature, after a sudden alteration of the intensity of irradiation. The theory of the method has been developed to accommodate the case of a leaf that is freely transpiring,...

journal_title：Plant physiology

authors： Linacre ET

更新日期：1967-05-01 00:00:00

abstract：:The presence of indole-3-butyric acid (IBA) as an endogenous auxin in Arabidopsis has been recently demonstrated. However, the in vivo role of IBA remains to be elucidated. We present the characterization of a semi-dominant mutant that is affected in its response to IBA, but shows a wild-type response to indole-3-acet...

journal_title：Plant physiology

authors： Poupart J,Waddell CS

更新日期：2000-12-01 00:00:00

abstract：:We have analyzed gene regulation of the Lhc supergene family in poplar (Populus spp.) and Arabidopsis (Arabidopsis thaliana) using digital expression profiling. Multivariate analysis of the tissue-specific, environmental, and developmental Lhc expression patterns in Arabidopsis and poplar was employed to characterize ...

journal_title：Plant physiology

authors： Klimmek F,Sjödin A,Noutsos C,Leister D,Jansson S

更新日期：2006-03-01 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：: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：:A mutant strain of Chlamydomonas reinhardtii, designated 18-7F, has been isolated and characterized. 18-7F requires a high CO(2) concentration for photoautrophic growth in spite of the apparent induction of a functional CO(2) concentrating mechanism in air-adapted cells. In 2% O(2) the photosynthetic characteristics o...

journal_title：Plant physiology

authors： Suzuki K,Marek LF,Spalding MH

更新日期：1990-05-01 00:00:00

abstract：:When leaf blades of fully expanded second leaves of barley (cv. Prior) were excised and incubated with the cut end in a 20 milligram per liter solution of abscisic acid, they accumulated proline at the rate of about 1 micromole per hour per gram fresh weight after a 3- to 4-hour lag. This accumulation occurred reprodu...

journal_title：Plant physiology

authors： Stewart CR

更新日期：1980-08-01 00:00:00

abstract：:Endogenous respiration of spores of the fungus Myrothecium verrucaria can be stimulated up to over-10 fold by diverse chemicals or by physical treatments. Greatest effects were caused by azide (12-fold at 250 mum) and by 2,4-dinitrophenol (7-fold at 300 mum). Marked stimulation was also caused by 10 mum silver (5-fold...

journal_title：Plant physiology

authors： Mandels GR,Maguire A

更新日期：1972-10-01 00:00:00

abstract：:The aim of this work was to investigate starch granule numbers in Arabidopsis (Arabidopsis thaliana) leaves. Lack of quantitative information on the extent of genetic, temporal, developmental, and environmental variation in granule numbers is an important limitation in understanding control of starch degradation and t...

journal_title：Plant physiology

authors： Crumpton-Taylor M,Grandison S,Png KM,Bushby AJ,Smith AM

更新日期：2012-02-01 00:00:00

abstract：:We used three-dimensional structured illumination microscopy (3D-SIM) to obtain subdiffraction ("super-resolution") images of plasmodesmata (PD) expressing a green fluorescent protein-tagged viral movement protein (MP) in tobacco (Nicotiana tabacum). In leaf parenchyma cells, we were able to resolve individual compone...

journal_title：Plant physiology

authors： Fitzgibbon J,Bell K,King E,Oparka K

更新日期：2010-08-01 00:00:00

abstract：:Analysis of gene expression data generated by high-throughput microarray transcript profiling experiments has demonstrated that genes with an overall similar expression pattern are often enriched for similar functions. This guilt-by-association principle can be applied to define modular gene programs, identify cis-reg...

journal_title：Plant physiology

authors： Vandepoele K,Quimbaya M,Casneuf T,De Veylder L,Van de Peer Y

更新日期：2009-06-01 00:00:00

abstract：:The light-harvesting chlorophyll protein system of the alga Chlamydobotrys stellata consists of an as yet uncharacterized algal chlorophyll a-protein, called LHCPa, and a common photosystem II-related chlorophyll a/b-protein, called LHCPb (Brandt, Kaiser-Jarry, Wiessner 1982 Biochim Biophys Acta 679: 404-409). For fur...

journal_title：Plant physiology

authors： Brandt P,Zufall E,Wiessner W

更新日期：1983-01-01 00:00:00

abstract：:The effect of strong irradiance (2000 micromole photons per square meter per second) on PSII heterogeneity in intact cells of Chlamydomonas reinhardtii was investigated. Low light (LL, 15 micromole photons per square meter per second) grown C. reinhardtii are photoinhibited upon exposure to strong irradiance, and the ...

journal_title：Plant physiology

authors： Neale PJ,Melis A

更新日期：1990-04-01 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：:Two types of ATP-dependent calcium (Ca(2+)) transport systems were detected in sealed microsomal vesicles from oat roots. Approximately 80% of the total Ca(2+) uptake was associated with vesicles of 1.11 grams per cubic centimeter and was insensitive to vanadate or azide, but inhibited by NO(3) (-). The remaining 20% ...

journal_title：Plant physiology

authors： Schumaker KS,Sze H

更新日期：1985-12-01 00:00:00

abstract：:Diethylstibestrol (DES) inhibited noncompetitively the ATPase in the plasma membrane fraction from Avena sativa L. cv. Goodfield roots when assayed in the presence of MgSO(4) or MgSO(4) plus KCl. In the presence of MgSO(4), 7.1x10(-5) molar DES inhibited the enzyme 50%; whereas in the presence of MgSO(4) and KCl, 1.3x...

journal_title：Plant physiology

authors： Balke NE,Hodges TK

更新日期：1979-01-01 00:00:00

abstract：:This study was designed to address the question: How specific for double bond position and conformation are plant enzymes that act on oleoyl-acyl carrier protein (ACP)? Octadecenoyl-ACPs with cis double bonds at positions [delta]6, [delta]7, [delta]8, [delta]9, [delta]10, [delta]11, or [delta]12 and elaidyl (18:1[delt...

journal_title：Plant physiology

authors： Dormann P,Frentzen M,Ohlrogge JB

更新日期：1994-03-01 00:00:00

abstract：:In all eukaryotes, cell cycle progression is controlled by cyclin-dependent kinases (CDKs) whose activity is regulated at several levels including inhibition by CDK inhibitors. Here, we report a comparative molecular and functional analysis of the tobacco (Nicotiana tomentosiformis) CDK inhibitor, NtKIS1a, and its spl...

journal_title：Plant physiology

authors： Jasinski S,Perennes C,Bergounioux C,Glab N

更新日期：2002-12-01 00:00:00

abstract：:The accumulation of starch within photosynthetic tissues and within dedicated storage organs has been characterized extensively in many species, and a function in buffering carbon availability or in fueling later growth phases, respectively, has been proposed. However, developmentally regulated starch turnover within ...

journal_title：Plant physiology

authors： Hedhly A,Vogler H,Schmid MW,Pazmino D,Gagliardini V,Santelia D,Grossniklaus U

更新日期：2016-12-01 00:00:00

abstract：:Cell-free extracts of Chlorella pyrenoidosa contained two enzymes capable of oxidizing d-lactate; these were glycolate dehydrogenase and NAD(+)-dependent d-lactate dehydrogenase. The two enzymes could be distinguished by differential centrifugation, glycolate dehydrogenase being largely particulate and NAD(+)-d-lactat...

journal_title：Plant physiology

authors： Gruber PJ,Frederick SE,Tolbert NE

更新日期：1974-02-01 00:00:00

abstract：:Transgenic Flaveria bidentis (a C4 species) plants with an antisense gene directed against the mRNA of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) were used to examine the relationship between the CO2 assimilation rate, Rubisco content, and carbon isotope discrimination. Reduction in the amount of Rubisc...

journal_title：Plant physiology

authors： Von Caemmerer S,Millgate A,Farquhar GD,Furbank RT

更新日期：1997-02-01 00:00:00

abstract：:Endo-[beta]-mannanase is hypothesized to be a rate-limiting enzyme in endosperm weakening, which is a prerequisite for radicle emergence from tomato (Lycopersicon esculentum Mill.) seeds. Using a sensitive, single-seed assay, we have measured mannanase activity diffusing from excised tomato endosperm caps following tr...

journal_title：Plant physiology

authors： Still DW,Bradford KJ

更新日期：1997-01-01 00:00:00

abstract：:Plant development requires regulation of both cell division and differentiation. The class 1 KNOTTED1-like homeobox (KNOX) genes such as knotted1 (kn1) in maize (Zea mays) and SHOOTMERISTEMLESS in Arabidopsis (Arabidopsis thaliana) play a role in maintaining shoot apical meristem indeterminacy, and their misexpression...

journal_title：Plant physiology

authors： Kessler S,Townsley B,Sinha N

更新日期：2006-08-01 00:00:00

abstract：:Cells of the unicellular green algae Chlamydomonas reinhardtii were grown in high dissolved inorganic carbon (DIC) concentrations (supplied with 50 milliliters per liter CO(2)[g]) and transferred to low DIC concentrations (supplied with

journal_title：Plant physiology

authors： Palmqvist K,Sundblad LG,Wingsle G,Samuelsson G

更新日期：1990-09-01 00:00:00

abstract：:A (1-->3)-beta-glucan synthase has been isolated from petiole tissue of sugar beet (Beta vulgaris L.). Enzyme activity is associated with a membrane fraction with a density of 1.03 grams per cubic centimeter when subjected to isopycnic density gradient centrifugation in Percoll. The reaction product was determined to ...

journal_title：Plant physiology

authors： Morrow DL,Lucas WJ

更新日期：1986-05-01 00:00:00