C Nuclear Magnetic Resonance Studies of Crassulacean Acid Metabolism in Intact Leaves of Kalanchoë tubiflora.

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：:Guard cells represent a highly differentiated cell type within the epidermis of plant leaves and stems. They respond to many endogenous and environmental signals and thereby modify the size of the stomatal pore they surround. We identified a novel gene that is highly expressed in guard cells of potato (Solanum tuberos...

journal_title：Plant physiology

authors： Menke U,Renault N,Mueller-Roeber B

更新日期：2000-03-01 00:00:00

abstract：:Photosynthetic (14)CO(2) fixation, [(14)C]glycolate formation, and the decarboxylation of [1-(14)C]glycolate and [1-(14)C]glycine by leaf mesophyll protoplasts isolated from isogenic diploid and tetraploid cultivars of ryegrass (Lolium perenne L.) were examined. The per cent O(2) inhibition of photosynthesis in protop...

journal_title：Plant physiology

authors： Rathnam CK,Chollet R

更新日期：1980-03-01 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：: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：:Pti4 is a tomato (Lycopersicon esculentum) transcription factor that belongs to the ERF (ethylene-responsive element binding factor) family of proteins. It interacts with the Pto kinase in tomato, which confers resistance to the Pseudomonas syringae pv tomato pathogen that causes bacterial speck disease. To study the ...

journal_title：Plant physiology

authors： Wu K,Tian L,Hollingworth J,Brown DC,Miki B

更新日期：2002-01-01 00:00:00

abstract：:Previous investigations suggested that specific auxin spatial distribution due to auxin movements to particular embryonic regions was important for normal embryonic pattern formation. To gain information on the molecular mechanism(s) by which auxin acts to direct pattern formation in specific embryonic regions, the ro...

journal_title：Plant physiology

authors： Rober-Kleber N,Albrechtová JT,Fleig S,Huck N,Michalke W,Wagner E,Speth V,Neuhaus G,Fischer-Iglesias C

更新日期：2003-03-01 00:00:00

abstract：:A water-soluble chlorophyll protein (WSCP) in cauliflower (Brassica oleracea L.) was purified and its N-terminal sequence was determined. Forty-six of 48 residues of the sequence completely matched those of the drought-induced 22-kD protein (BnD22) in rapeseed (Brassica napus L.). All 40 sequenced residues of WSCP fro...

journal_title：Plant physiology

authors： Nishio N,Satoh H

更新日期：1997-10-01 00:00:00

abstract：:A selected strain of wild oat (Avena fatua L.) seed has been shown to lose dormancy rapidly during moist soil incubation at 25 C, whereas seed kept similarly at 5 C maintained a high level of dormancy.The activities of cytosolic dehydrogenase enzymes of the pentose phosphate pathway were assayed throughout a period of...

journal_title：Plant physiology

authors： Adkins SW,Ross JD

更新日期：1981-07-01 00:00:00

abstract：:Of the eight intermediates associated with the two pathways of UDP-d-glucuronic acid biosynthesis found in plants, only d-glucuronic acid inhibited myo-inositol 1-phosphate synthase (EC 5.5.1.4), formerly referred to as d-glucose 6-phosphate cycloaldolase. Inhibition was competitive. An attempt to demonstrate over-all...

journal_title：Plant physiology

authors： Loewus MW,Loewus F

更新日期：1974-09-01 00:00:00

abstract：:In cyanobacteria fatty acids destined for lipid synthesis can be synthesized de novo, but also exogenous free fatty acids from the culture medium can be directly incorporated into lipids. Activation of exogenous fatty acids is likely required prior to their utilization. To identify the enzymatic activity responsible f...

journal_title：Plant physiology

authors： Kaczmarzyk D,Fulda M

更新日期：2010-03-01 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：:Both the red-absorbing (Pr) and far red-absorbing (Pfr) forms of phytochrome undergo destruction, defined as the loss of photoreversibly detectable chromoprotein following actinic irradiation of dark-grown tissue, in 4-day-old etiolated oat seedlings. Pr and Pfr destruction follow the same time course, exhibit the sam...

journal_title：Plant physiology

authors： Stone HJ,Pratt LH

更新日期：1979-04-01 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：: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 expression of light-regulated genes in plants is controlled by different classes of photoreceptors that act through a variety of signaling molecules. During photomorphogenesis, the early light-induced protein (Elip) genes are among the first to be induced. To understand the light signal transduction pathways that ...

journal_title：Plant physiology

authors： Harari-Steinberg O,Ohad I,Chamovitz DA

更新日期：2001-11-01 00:00:00

abstract：:ATP sulfurylase and 5'-adenylylsulfate (APS) reductase catalyze two reactions in the sulfate assimilation pathway. Cell fractionation of Arabidopsis leaves revealed that ATP sulfurylase isoenzymes exist in the chloroplast and the cytosol, whereas APS reductase is localized exclusively in chloroplasts. During developme...

journal_title：Plant physiology

authors： Rotte C,Leustek T

更新日期：2000-10-01 00:00:00

abstract：:Histone H2B monoubiquitination (H2Bub) is being recognized as a regulatory mechanism that controls a range of cellular processes in plants, but the molecular mechanisms of H2Bub that are involved in responses to biotic stress are largely unknown. In this study, we used wild-type and H2Bub loss-of-function mutations of...

journal_title：Plant physiology

authors： Hu M,Pei BL,Zhang LF,Li YZ

更新日期：2014-04-01 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：:A radiation-induced mutant of Scotch spearmint (Mentha x gracilis) was shown to produce an essential oil containing principally C3-oxygenated p-menthane monoterpenes that are typical of peppermint, instead of the C6-oxygenated monoterpene family characteristic of spearmint. In vitro measurement of all of the enzymes r...

journal_title：Plant physiology

authors： Croteau R,Karp F,Wagschal KC,Satterwhite DM,Hyatt DC,Skotland CB

更新日期：1991-07-01 00:00:00

abstract：:Here, we report the aluminum (Al)-induced organ-specific expression of a WAK1 (cell wall-associated receptor kinase 1) gene and cell type-specific localization of WAK proteins in Arabidopsis. WAK1-specific reverse transcriptase-polymerase chain reaction analysis revealed an Al-induced WAK1 gene expression in roots. Sh...

journal_title：Plant physiology

authors： Sivaguru M,Ezaki B,He ZH,Tong H,Osawa H,Baluska F,Volkmann D,Matsumoto H

更新日期：2003-08-01 00:00:00

abstract：:The sites of action of several compounds, reported to inhibit CO(2) fixation by chloroplast preparations were located by developing assays in lettuce chloroplasts to test their effect on partial reactions of the carbon cycle and on carbonic anhydrase. The results indicated that: d, l-glyceral-dehyde and 5'-AMP inhibit...

journal_title：Plant physiology

authors： Bamberger ES,Avron M

更新日期：1975-10-01 00:00:00

abstract：:Circadian clocks drive rhythms with a period near 24 h, but the molecular basis of the regulation of the period of the circadian clockis poorly understood. We previously demonstrated that metabolites affect the free-running period of the circadian oscillator of Arabidopsis (Arabidopsis thaliana), with endogenous sugar...

journal_title：Plant physiology

authors： Hearn TJ,Marti Ruiz MC,Abdul-Awal SM,Wimalasekera R,Stanton CR,Haydon MJ,Theodoulou FL,Hannah MA,Webb AAR

更新日期：2018-09-01 00:00:00

abstract：:Although intact fruits of unripe cantaloupe (Cucumis melo L.) produce very little ethylene, a massive increase in ethylene production occurred in response to excision. The evidence indicates that this wound ethylene is produced from methionine via 1-aminocyclopropanecarboxylic acid (ACC) as in ripening fruits. Excisio...

journal_title：Plant physiology

authors： Hoffman NE,Yang SF

更新日期：1982-02-01 00:00:00

abstract：:A 100-fold purification of a reduced triphosphopyridine nucleotide/3-methyleneoxindole reductase of peas has been achieved using conventional protein fractionation procedures. Reduced diphosphopyridine nucleotide is 25-fold less effective than reduced triphosphopyridine nucleotide as the reductant. The preparation is ...

journal_title：Plant physiology

authors： Moyed HS,Williamson V

更新日期：1967-04-01 00:00:00

abstract：:Mitochondrial alternative oxidase (AOX) in plants is a non-proton-motive ubiquinol oxidase that is activated by redox mechanisms and 2-oxo acids. A comparative analysis of the AOX isoenzymes AOX1A, AOX1C, and AOX1D from Arabidopsis (Arabidopsis thaliana) revealed that cysteine residues, CysI and CysII, are both involv...

journal_title：Plant physiology

authors： Selinski J,Hartmann A,Kordes A,Deckers-Hebestreit G,Whelan J,Scheibe R

更新日期：2017-08-01 00:00:00

abstract：:The delivery of proteins instead of DNA into plant cells allows for a transient presence of the protein or enzyme that can be useful for biochemical analysis or genome modifications. This may be of particular interest for genome editing, because it can avoid DNA (transgene) integration into the genome and generate pre...

journal_title：Plant physiology

authors： Martin-Ortigosa S,Peterson DJ,Valenstein JS,Lin VS,Trewyn BG,Lyznik LA,Wang K

更新日期：2014-02-01 00:00:00

abstract：:Although phenylpropanoid-polyamine conjugates (PPCs) occur ubiquitously in plants, their biological roles remain largely unexplored. The two major PPCs of Nicotiana attenuata plants, caffeoylputrescine (CP) and dicaffeoylspermidine, increase dramatically in local and systemic tissues after herbivore attack and simulat...

journal_title：Plant physiology

authors： Kaur H,Heinzel N,Schöttner M,Baldwin IT,Gális I

更新日期：2010-03-01 00:00:00

abstract：:Gas-liquid chromatography-mass spectrometry (GLC-MS) has been used for the separation, detection, and identification of 1,4-benzoxazin-3-ones (hydroxamic acids and lactams) and benzoxazolinones found in maize (Zea mays L.) extracts. Compounds of interest were partitioned into ethyl acetate from aqueous maize seedling ...

journal_title：Plant physiology

authors： Woodward MD,Corcuera LJ,Schnoes HK,Helgeson JP,Upper CD

更新日期：1979-01-01 00:00:00

abstract：:A method to fractionate corn (Zea mays L. B73) mitochondria into soluble proteins, high molecular weight soluble proteins, and membrane proteins was developed. These fractions were analyzed by both sodium dodecyl sulfate-polyacrylamide gel electrophoresis and assays of mitochondrial enzyme activities. The Krebs cycle ...

journal_title：Plant physiology

authors： Hayes MK,Luethy MH,Elthon TE

更新日期：1991-12-01 00:00:00