Aspects of nitrogen metabolism in the rice seedling.

abstract：:Isoflavonoids are ecophysiologically active secondary metabolites of the Leguminosae and known for health-promoting phytoestrogenic functions. Isoflavones are synthesized by 1,2-elimination of water from 2-hydroxyisoflavanones, the first intermediate with the isoflavonoid skeleton, but details of this dehydration have...

journal_title：Plant physiology

authors： Akashi T,Aoki T,Ayabe S

更新日期：2005-03-01 00:00:00

abstract：:The intensity of "tuberization stimulus" in potato shoots (Solanum tuberosum L.) can be assessed from cuttings containing one or more leaves. Cuttings maintained in a mist chamber under long days will form tubers from underground buds if prior to taking the cutting the leaves received sufficient exposure to photoperio...

journal_title：Plant physiology

authors： Ewing EE

更新日期：1978-03-01 00:00:00

abstract：:Using (14)CO(2) gas exchange and metabolite analyses, stomatal as well as total internal CO(2) uptake and evolution were estimated. Pulse modulated fluorescence was measured during induction and steady state of photosynthesis. Leaf water potential of Digitalis lanata EHRH. plants decreased to -2.5 megapascals after wi...

journal_title：Plant physiology

authors： Stuhlfauth T,Scheuermann R,Fock HP

更新日期：1990-04-01 00:00:00

abstract：:The activity of 1,3-beta-d-glucan synthase assayed in the presence of digitonin in a microsomal preparation from suspension-cultured cells of Glycine max can be fully inhibited by unsaturated fatty acids, trienoic acids being most effective. Lysophosphatidylcholine, platelet-activating factor, acylcarnitine, and Echin...

journal_title：Plant physiology

authors： Kauss H,Jeblick W

更新日期：1986-01-01 00:00:00

abstract：:More volatile organic carbon is lost from plants as isoprene than any other molecule. This flux of carbon to the atmosphere affects atmospheric chemistry and can serve as a substrate for ozone production in polluted air. Isoprene synthesis may help leaves cope with heatflecks and active oxygen species. Isoprene syntha...

journal_title：Plant physiology

authors： Wolfertz M,Sharkey TD,Boland W,Kühnemann F

更新日期：2004-08-01 00:00:00

abstract：:Pulses of a fluorinated analog of leucine, 5',5',5'-trifluoroleucine, reset the phase of the circadian rhythm of K(+) uptake in Lemna gibba G3 under continuous light conditions. The trifluoroleucine pulse caused the largest delay phase-shifts during the early subjective phase but it caused only small phase advances. T...

journal_title：Plant physiology

authors： Kondo T

更新日期：1988-11-01 00:00:00

abstract：:Rapidly dried Tortula ruralis, a drought-tolerant moss, is known to synthesize proteins on rehydration at a much lower rate than the slowly dried moss. The reasons for this low rate of protein synthesis are unclear. We have found that during rehydration of rapidly dried moss, there is a negative correlation between th...

journal_title：Plant physiology

authors： Dhindsa RS

更新日期：1987-12-01 00:00:00

abstract：:Phase shifts of the circadian rhythm of K(+) uptake by Lemna gibba G3, caused by pulse administration of various amino acids analogs, were examined and compared. The various phase shifts were not due to any disturbance in the biosynthesis of amino acids, since the effective time of day and direction of the phase shift...

journal_title：Plant physiology

authors： Kondo T

更新日期：1989-08-01 00:00:00

abstract：:The oxygen requirements during the three phases of photoinduced germination of Onoclea sensibilis L. spores were analyzed by temporarily applying nitrogen atmosphere. The dark preinduction phase, during which the spores imbibe water and establish sensitivity to irradiation, involves an oxidative process which can be r...

journal_title：Plant physiology

authors： Towill LR,Ikuma H

更新日期：1975-02-01 00:00:00

abstract：:Suspension-cultured cells of sycamore (Acer pseudoplatanus L.) which were immersed in liquid nitrogen after prefreezing to the temperatures from -30 to -50 C in the presence of dimethylsulfoxide and glucose as cryoprotective additive could proliferate vigorously when rewarmed rapidly in water at 40 C. For maintaining ...

journal_title：Plant physiology

authors： Sugawara Y,Sakai A

更新日期：1974-11-01 00:00:00

abstract：:Sensitive differential scanning calorimetry was employed to investigate thylakoid membrane structure. Calorimetric scans of chloroplast membranes suspended in a low ionic strength Hepesbuffered medium revealed endothermic transitions centered at the following temperatures ( degrees C): A (42.5), B (60.6), C(1) (64.9),...

journal_title：Plant physiology

authors： Smith KA,Low PS

更新日期：1989-06-01 00:00:00

abstract：:A novel alliinase (EC 4.4.1.4) was detected and purified from the roots of the Amazonian medicinal plant Petiveria alliacea. The isolated enzyme is a heteropentameric glycoprotein composed of two alpha-subunits (68.1 kD each), one beta-subunit (56.0 kD), one gamma-subunit (24.8 kD), and one delta-subunit (13.9 kD). Th...

journal_title：Plant physiology

authors： Musah RA,He Q,Kubec R,Jadhav A

更新日期：2009-11-01 00:00:00

abstract：:Sucrose:sucrose 1-fructosyltransferase (1-SST), an enzyme involved in fructan biosynthesis, was purified to homogeneity from tubers of Helianthus tuberosus that were harvested in the accumulation phase. Gel filtration under native conditions predicted a molecular mass of about 67 kD. Electrophoresis or gel filtration ...

journal_title：Plant physiology

authors： Koops AJ,Jonker HH

更新日期：1996-04-01 00:00:00

abstract：:Cotyledons excised from dark-grown cucumber (Cucumis sativus L. cv. Aonagajibai) seedlings were incubated in the dark with the cytokinin benzyladenine for different time periods. Then, various greening parameters were examined, including protochlorophyll(ide) to chlorophyll(ide) photoconversion and delta-aminolevulini...

journal_title：Plant physiology

authors： Lew R,Tsuji H

更新日期：1982-03-01 00:00:00

abstract：:We have constructed a chimeric gene consisting of the promoter, first exon, and first intron of a maize ubiquitin gene (Ubi-1) and the coding sequence of the bar gene from Streptomyces hygroscopicus. This construct was transferred into rice (Oryza sativa L.) protoplasts via electroporation, and 10 plants were regenera...

journal_title：Plant physiology

authors： Toki S,Takamatsu S,Nojiri C,Ooba S,Anzai H,Iwata M,Christensen AH,Quail PH,Uchimiya H

更新日期：1992-11-01 00:00:00

abstract：:Calcium/calmodulin-dependent protein kinase (CCaMK) has been shown to play an important role in abscisic acid (ABA)-induced antioxidant defense and enhance the tolerance of plants to drought stress. However, its downstream molecular events are poorly understood. Here, we identify a NAC transcription factor, ZmNAC84, i...

journal_title：Plant physiology

authors： Zhu Y,Yan J,Liu W,Liu L,Sheng Y,Sun Y,Li Y,Scheller HV,Jiang M,Hou X,Ni L,Zhang A

更新日期：2016-07-01 00:00:00

abstract：:Ammonium (NH(4) (+)) nutrition inhibits water uptake and root exudation and decreases leaf water potential of tomato plants grown in solution culture. This inhibition is readily reversible by NO(3) (-) for short term exposures to NH(4) (+); however, recovery is delayed following long term exposures. ...

journal_title：Plant physiology

authors： Quebedeaux B,Ozbun JL

更新日期：1973-12-01 00:00:00

abstract：:Mitochondria isolated from Kalanchoë daigremontiana, a Crassulacean acid metabolism plant, decarboxylate added malate to pyruvate at rates of up to 100 micromoles per hour per milligram original chlorophyll in the presence of ADP. Omitting ADP reduces this rate by approximately 50%. Antimycin A inhibits malate decarbo...

journal_title：Plant physiology

authors： Day DA

更新日期：1980-04-01 00:00:00

abstract：:The long-day plant Arabidopsis thaliana (L.) Heynh. flowers early in response to brief end-of-day (EOD) exposures to far-red light (FR) following a fluorescent short day of 8 h. FR promotion of flowering was nullified by subsequent brief red light (R) EOD exposure, indicating phytochrome involvement. The EOD response ...

journal_title：Plant physiology

authors： Bagnall DJ,King RW,Whitelam GC,Boylan MT,Wagner D,Quail PH

更新日期：1995-08-01 00:00:00

abstract：:We used pulsed-field gel electrophoresis and restriction fragment mapping to analyze the structure of Medicago truncatula chloroplast DNA (cpDNA). We find most cpDNA in genome-sized linear molecules, head-to-tail genomic concatemers, and complex branched forms with ends at defined sites rather than at random sites as ...

journal_title：Plant physiology

authors： Shaver JM,Oldenburg DJ,Bendich AJ

更新日期：2008-03-01 00:00:00

abstract：:A specific antiserum, raised against purified phenylalanine ammonialyase from irradiated cell suspension cultures of parsley (Petroselinum hortense Hoffm.), was used to compare the enzyme species induced either by dilution or by irradiation of the cell suspensions, to investigate the effect of dilution on the rate of ...

journal_title：Plant physiology

authors： Schröder J,Betz B,Hahlbrock K

更新日期：1977-09-01 00:00:00

abstract：:Distribution of K, Ca, Cl, S, and P in freeze-dried sections of Arabidopsis flower stalk was analyzed by energy dispersive x-ray imaging. Concentrations of these elements in different cell types were quantified by microanalysis of single-cell samples and phloem exudates. Results showed a differential pattern of distri...

journal_title：Plant physiology

authors： Koroleva OA,Davies A,Deeken R,Thorpe MR,Tomos AD,Hedrich R

更新日期：2000-10-01 00:00:00

abstract：:Maize (Zea mays) leaves provide a useful system to study how proximal/distal patterning is established because of the distinct tissues found in the distal blade and the proximal sheath. Several mutants disrupt this pattern, including the dominant knotted1-like homeobox (knox) mutants. knox genes encode homeodomain pro...

journal_title：Plant physiology

authors： Ramirez J,Bolduc N,Lisch D,Hake S

更新日期：2009-12-01 00:00:00

abstract：:The effect of varying sequences of red and far red light on sterol biosynthesis in etiolated seedlings of Digitalis purpurea L. was examined. Red light caused a marked increase in the amounts of free and glycosidic sterols and a small decrease in esterified sterols during the first 4 hours after illumination. Far red ...

journal_title：Plant physiology

authors： Jacobsohn MK

更新日期：1978-12-01 00:00:00

abstract：:Ferns (Pteridophyta) are very important members of the plant kingdom that lag behind other taxa with regards to our understanding of their genetics, genomics, and molecular biology. We report here, to our knowledge, the first instance of stable transformation of fern with recovery of transgenic sporophytes. Spores of ...

journal_title：Plant physiology

authors： Muthukumar B,Joyce BL,Elless MP,Stewart CN Jr

更新日期：2013-10-01 00:00:00

abstract：:An alpha-L-fucosidase (EC 3.2.1.51) able to release the t-fucosyl residue from the side chain of xyloglucan oligosaccharides has been detected in the leaves of Arabidopsis plants. Moreover, an alpha-L-fucosidase with similar substrate specificity was purified from cabbage (Brassica oleracea) leaves to render a single ...

journal_title：Plant physiology

authors： de La Torre F,Sampedro J,Zarra I,Revilla G

更新日期：2002-01-01 00:00:00

abstract：:Mutations at the glossy1 (gl1) locus of maize (Zea mays L.) quantitatively and qualitatively affect the deposition of cuticular waxes on the surface of seedling leaves. The gl1 locus has been molecularly cloned by transposon tagging with the Mutator transposon system. The epi23 cDNA was isolated by subtractive hybridi...

journal_title：Plant physiology

authors： Hansen JD,Pyee J,Xia Y,Wen TJ,Robertson DS,Kolattukudy PE,Nikolau BJ,Schnable PS

更新日期：1997-04-01 00:00:00

abstract：:Root hairs develop as long extensions from root epidermal cells. After the formation of an initial bulge at the distal end of the epidermal cell, the root hair structure elongates by tip growth. Because root hairs are not surrounded by other cells, root hair formation provides an excellent system for studying the high...

journal_title：Plant physiology

authors： Ringli C,Baumberger N,Diet A,Frey B,Keller B

更新日期：2002-08-01 00:00:00

abstract：:Amylase was found in high activity (193 international units per milligram protein) in the tap root of alfalfa (Medicago sativa L. cv. Sonora). The activity was separated by gel filtration chromatography into two fractions with molecular weights of 65,700 (heavy amylase) and 41,700 (light amylase). Activity staining of...

journal_title：Plant physiology

authors： Doehlert DC,Duke SH,Anderson L

更新日期：1982-05-01 00:00:00

abstract：:Nitrogen-limited and nitrogen-sufficient cell cultures of Selenastrum minutum (Naeg.) Collins (Chlorophyta) were used to investigate the dependence of NH(4) (+) assimilation on exogenous CO(2). N-sufficient cells were only able to assimilate NH(4) (+) maximally in the presence of CO(2) and light. Inhibition of photosy...

journal_title：Plant physiology

authors： Amory AM,Vanlerberghe GC,Turpin DH

更新日期：1991-01-01 00:00:00