Proteomic analysis of somatic embryogenesis in Medicago truncatula. Explant cultures grown under 6-benzylaminopurine and 1-naphthaleneacetic acid treatments.

abstract：:Experiments are described further indicating that O(2)-resistant photosynthesis observed in a tobacco (Nicotiana tabacum) mutant with enhanced catalase activity is associated with decreased photorespiration under conditions of high photorespiration relative to net photosynthesis. The effects on net photosynthesis of (...

journal_title：Plant physiology

authors： Zelitch I

更新日期：1990-08-01 00:00:00

abstract：:We used Phytotyping4D to investigate the contribution of clock and light signaling to the diurnal regulation of rosette expansion growth and leaf movement in Arabidopsis (Arabidopsis thaliana). Wild-type plants and clock mutants with a short (lhycca1) and long (prr7prr9) period were analyzed in a T24 cycle and in T-cy...

journal_title：Plant physiology

authors： Apelt F,Breuer D,Olas JJ,Annunziata MG,Flis A,Nikoloski Z,Kragler F,Stitt M

更新日期：2017-07-01 00:00:00

abstract：:Isoprene is formed in and emitted by plants and the reason for this apparent carbon waste is still unclear. It has been proposed that isoprene stabilizes cell and particularly chloroplast thylakoid membranes. We tested if membrane stabilization or isoprene reactivity with ozone induces protection against acute ozone e...

journal_title：Plant physiology

authors： Loreto F,Mannozzi M,Maris C,Nascetti P,Ferranti F,Pasqualini S

更新日期：2001-07-01 00:00:00

abstract：:A procedure is described for isolating and purifying mesophyll protoplasts and bundle sheath protoplasts of the C(4) plant Panicum miliaceum. Following enzymic digestion of leaf tissue, mesophyll protoplasts and bundle sheath protoplasts are released and purified by density centrifugation. The lower density of mesophy...

journal_title：Plant physiology

authors： Edwards GE

更新日期：1979-05-01 00:00:00

abstract：:Starch, total amylolytic and phosphorylase activities were determined in lentil cotyledons during the first days of germination. Several independent criteria show that the amylolytic activity is due mainly to an amylase of the alpha type. Starch is degraded slowly in the first days; during this time, alpha- and beta-a...

journal_title：Plant physiology

authors： Tárrago JF,Nicolás G

更新日期：1976-11-01 00:00:00

abstract：:Although the Mutator (Mu) system is well characterized in maize (Zea mays), very little is known about this highly mutagenic system of transposons in other grasses. Mutator is regulated by the MuDR class of elements, which encodes two genes, one of which, mudrA, has similarity to a number of bacterial transposases. Ex...

journal_title：Plant physiology

authors： Lisch DR,Freeling M,Langham RJ,Choy MY

更新日期：2001-03-01 00:00:00

abstract：:Though Helminthosporium maydis race T (HmT) toxin decreased active Ca(2+) uptake into mitochondria isolated from susceptible (T) but not resistant (N) corn (Kimber, Sze, 1984 Plant Physiol 74: 804-809 the mode of toxin action is not understood. This study shows that HmT toxin or A23187 (a Ca(2+) ionophore) dissipated ...

journal_title：Plant physiology

authors： Holden MJ,Sze H

更新日期：1984-05-01 00:00:00

abstract：:The response of pearl millet (Pennisetum glaucum [L.]) seedlings to prolonged starvation was investigated at the biochemical and ultrastructural level. After 2 days of darkness the bulk of the seedling carbohydrate reserves were depleted. After 8 days in the dark the respiratory rate had declined to less than 50% of i...

journal_title：Plant physiology

authors： Baysdorfer C,Warmbrodt RD,Vanderwoude WJ

更新日期：1988-12-01 00:00:00

abstract：:Movement of [(14)C]kinetin and [(14)C]gibberellic acid was examined in cotton (Gossypium hirsutum L.) cotyledonary petiole sections independent of label uptake or exit from the tissue. Sections 20 millimeters in length were taken from well watered, stressed, and poststressed plants. Transport capacity was determined u...

journal_title：Plant physiology

authors： Davenport TL,Jordan WR,Morgan PW

更新日期：1979-01-01 00:00:00

abstract：:High specific radioactivity (26.3 mc/mmole) racemic 2-(14)C-abscisic acid was synthesized. An aliquot of abscisic acid, 1.2 x 10(-4)m in aqueous methanolic solution, was applied to the surface of either a cotyledon or the first true leaf of 8- to 32-day-old cotton seedlings (Gossypium hirsutum L.). After various inter...

journal_title：Plant physiology

authors： Shindy WW,Asmundson CM,Smith OE,Kumamoto J

更新日期：1973-11-01 00:00:00

abstract：:Sodium dodecyl sulfate-polyacrylamide gel electrophoretic analysis of the starchy endosperm protein of rice (Oryza sativa L. Japonica cv Koshihikari) during seed development confirmed that storage protein begins to accumulate about 5 days after flowering. Two polypeptide groups, 22 to 23 and 37 to 39 kilodaltons, the ...

journal_title：Plant physiology

authors： Yamagata H,Sugimoto T,Tanaka K,Kasai Z

更新日期：1982-10-01 00:00:00

abstract：:Cells of the red alga Porphyridium cruentum (ATCC 50161) exposed to increasing growth irradiance exhibited up to a three-fold reduction in photosystems I and II (PSI and PSII) and phycobilisomes but little change in the relative numbers of these components. Batch cultures of P. cruentum were grown under four photon fl...

journal_title：Plant physiology

authors： Cunningham FX,Dennenberg RJ,Mustardy L,Jursinic PA,Gantt E

更新日期：1989-11-01 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：:Amyloplasts of starchy tissues such as those of maize (Zea mays L.) function in the synthesis and accumulation of starch during kernel development. ADP-glucose pyrophosphorylase (AGPase) is known to be located in chloroplasts, and for many years it was generally accepted that AGPase was also localized in amyloplasts o...

journal_title：Plant physiology

authors： Shannon JC,Pien FM,Cao H,Liu KC

更新日期：1998-08-01 00:00:00

abstract：:ZRP4, a 1.4-kb mRNA that preferentially accumulates in roots of young Zea mays L. plants, was identified by isolation of the corresponding cDNA clone. Genomic Southern analysis indicates that the zrp4 gene is represented once in the corn genome. The deduced ZRP4 polypeptide of 39,558 D is rich in leucine, serine, and ...

journal_title：Plant physiology

authors： Held BM,Wang H,John I,Wurtele ES,Colbert JT

更新日期：1993-07-01 00:00:00

abstract：:Cesium (Cs) is chemically similar to potassium (K). However, although K is an essential element, Cs is toxic to plants. Two contrasting hypotheses to explain Cs toxicity have been proposed: (1) extracellular Cs+ prevents K+ uptake and, thereby, induces K starvation; and (2) intracellular Cs+ interacts with vital K(+)-...

journal_title：Plant physiology

authors： Hampton CR,Bowen HC,Broadley MR,Hammond JP,Mead A,Payne KA,Pritchard J,White PJ

更新日期：2004-11-01 00:00:00

abstract：:The surface tension (γ) of xylem sap plays a key role in stabilizing air-water interfaces at the pits between water- and gas-filled conduits to avoid air seeding at low water potentials. We studied seasonal changes in xylem sap γ in Picea abies and Pinus mugo growing at the alpine timberline. We analyzed their vulnera...

journal_title：Plant physiology

authors： Losso A,Beikircher B,Dämon B,Kikuta S,Schmid P,Mayr S

更新日期：2017-11-01 00:00:00

abstract：:4-Hydroxyphenylpyruvate dioxygenase (EC 1.13.11.27) was partially purified from barnyardgrass (Echinochloa crus-galli L.) leaves and assayed by high-performance liquid chromatography analysis of product formation or by the capture of released 14CO2. The bleaching herbicide sulcotrione [2-(2-chloro-4-methanesulfonylben...

journal_title：Plant physiology

authors： Secor J

更新日期：1994-12-01 00:00:00

abstract：:The odoriferous compounds produced at the time of flowering by the inflorescences of 5 arum lily species were condensed in dry ice traps. The components of the condensates were separated by paper chromatography and identified on the basis of position and color reactions in comparison with known compounds. The concentr...

journal_title：Plant physiology

authors： Smith BN,Meeuse BJ

更新日期：1966-02-01 00:00:00

abstract：:A theory is presented to explain the phloem mobility of certain systemic xenobiotics that are not weak acids. It is shown that there is a theoretically optimum permeability that permits optimum circulation through the symplasm and apoplast (including the phloem and xylem) of Solanum tuberosum plants. The optimum perme...

journal_title：Plant physiology

authors： Tyree MT

更新日期：1979-02-01 00:00:00

abstract：:The effect of ozone was studied on the peroxidase activity from various compartments of Sedum album leaves (epidermis, intercellular fluid, residual cell material, and total cell material). The greatest increase following a 2-hour ozone exposure (0.4 microliters O(3) per liter) was observed in extracellular peroxidase...

journal_title：Plant physiology

authors： Castillo FJ,Penel C,Greppin H

更新日期：1984-04-01 00:00:00

abstract：:Exudate was collected periodically from the root systems of detopped tobacco plants. Volume, cations, and (42)K or (86)Rb transfer were measured. According to measurements of K by (42)K and by the flame photometer, when concentrations of KCl and KNO(3) were lower than 10(-2)m, the K in the exudate came mostly from a p...

journal_title：Plant physiology

authors： Wallace A,Ashcroft RT,Lunt OR

更新日期：1967-02-01 00:00:00

abstract：:The profile of endogenous cytokinins in a genetic tumor line of tobacco, namely, Nicotiana glauca (Grah.) x Nicotiana langsdorffii (Weinm.), following 1 to 10 weeks of growth on solid medium was determined by radioimmunoassay. (3)H-labeled cytokinins of high specific activity were added during tissue extraction to cor...

journal_title：Plant physiology

authors： Nandi SK,Palni LM,Parker CW

更新日期：1990-11-01 00:00:00

abstract：:The analysis of substituent constants for the lipophilic and electronic factors in the auxin activity of substituted phenylacetic acids in elongation of coleoptile segments shows that these factors parallel those for the phenoxyacetic acids but assign reactivity in growth promotion to the meta position of phenylacetic...

journal_title：Plant physiology

authors： Muir RM,Fujita T,Hansch C

更新日期：1967-11-01 00:00:00

abstract：:Environmental stresses frequently decrease plant fertility. In Arabidopsis, the effect of salt stress on reproduction was examined using plants grown in hydroponic medium. Salt stress inhibited microsporogenesis and stamen filament elongation. Because plants grown in hydroponic media can be rapidly and transiently str...

journal_title：Plant physiology

authors： Sun K,Hunt K,Hauser BA

更新日期：2004-08-01 00:00:00

abstract：:Cells of Anabaena PCC 7119 and of a mutant strain of Nostoc muscorum unable to fix dinitrogen, grown at pH 8 and under low CO(2) tension (air), showed a reduced capacity for photosynthesis when cultured in the absence of sodium, this inhibition being followed by symptoms of photooxidation, such as chlorosis, oxygen co...

journal_title：Plant physiology

authors： Maeso ES,Piñas FF,Gonzalez MG,Valiente EF

更新日期：1987-10-01 00:00:00

abstract：:Proline content increased greatly in detached rice (Oryza sativa cv. Taichung Native 1) leaves during senescence. There was a slight but significant increase in proline level after one day of incubation, and, subsequently, proline accumulated relatively rapidly. By 4 days after excision, the level of proline had incre...

journal_title：Plant physiology

authors： Wang CY,Cheng SH,Kao CH

更新日期：1982-06-01 00:00:00

abstract：:Cell walls of grasses have two major polysaccharides that contain uronic acids, the hemicellulosic glucuronoarabinoxylans and the galactosyluronic acid-rich pectins. A technique whereby esterified uronic acid carboxyl groups are reduced selectively to yield their respective 6,6-dideuterio neutral sugars was used to de...

journal_title：Plant physiology

authors： Kim JB,Carpita NC

更新日期：1992-02-01 00:00:00

abstract：:Plants sense and integrate a variety of signals from the environment through different interacting signal transduction pathways that involve hormones and signaling molecules. Using ALTERNATIVE OXIDASE1a (AOX1a) gene expression as a model system of retrograde or stress signaling between mitochondria and the nucleus, MY...

journal_title：Plant physiology

authors： Zhang X,Ivanova A,Vandepoele K,Radomiljac J,Van de Velde J,Berkowitz O,Willems P,Xu Y,Ng S,Van Aken O,Duncan O,Zhang B,Storme V,Chan KX,Vaneechoutte D,Pogson BJ,Van Breusegem F,Whelan J,De Clercq I

更新日期：2017-03-01 00:00:00

abstract：:The canonical pathway for isoleucine biosynthesis in plants begins with the conversion of threonine to 2-ketobutyrate by threonine deaminase (OMR1). However, demonstration of methionine gamma-lyase (MGL) activity in Arabidopsis (Arabidopsis thaliana) suggested that production of 2-ketobutyrate from methionine can also...

journal_title：Plant physiology

authors： Joshi V,Jander G

更新日期：2009-09-01 00:00:00