Free amino Acid composition of leaf exudates and Phloem sap : a comparative study in oats and barley.

abstract：:Q(10) values for (13)NO(3) (-) influx were determined in ;uninduced' (NO(3) (-)-starved) and ;induced' (NO(3) (-)-pretreated) roots of barley (Hordeum vulgare L.) plants at various concentrations of external NO(3) (-) ([NO(3) (-)](0)). At 0.02 mole per cubic meter [NO(3) (-)](0), Q(10) values for influx were from 3 to...

journal_title：Plant physiology

authors： Glass AD,Siddiqi MY,Ruth TJ,Rufty TW

更新日期：1990-08-01 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：:E2F transcription factors are required for the progression and arrest of the cell cycle in animals. Like animals, plants have evolved to conserve the E2F family. The Arabidopsis genome encodes E2F and DP proteins that share a high similarity with the animal E2F and DP families. Here, we show that Arabidopsis E2F and D...

journal_title：Plant physiology

authors： Kosugi S,Ohashi Y

更新日期：2002-03-01 00:00:00

abstract：:Nucleotide metabolism in potato (Solanum tuberosum) mitochondria was studied using 31P-nuclear magnetic resonance spectroscopy and the O2 electrode. Immediately following the addition of ADP, ATP synthesis exceeded the rate of oxidative phosphorylation, fueled by succinate oxidation, due to mitochondrial adenylate kin...

journal_title：Plant physiology

authors： Roberts J,Aubert S,Gout E,Bligny R,Douce R

更新日期：1997-01-01 00:00:00

abstract：:Germination of Rumex obtusifolius L. seeds is potentiated to an observable degree in 2 minutes by a single shift in temperature from 20 to 35 C. Half-maximal potentiation requires less than 32 minutes at the higher temperature. Similar sensitivities to shifts in temperature were observed for seeds of Barbarea vulgaris...

journal_title：Plant physiology

authors： Taylorson RB,Hendricks SB

更新日期：1972-02-01 00:00:00

abstract：:Changes in the properties of extractable vacuolar H+-pumping pyrophosphatase (V-PPase) and vacuolar ATPase activities in chilling-sensitive seedlings of mung bean (Vigna radiata) were investigated. Following chilling at 4[deg]C for 48 h, both hydrolytic and proton-pumping activities of the V-PPase increased 1.5- to 2-...

journal_title：Plant physiology

authors： Darley CP,Davies JM,Sanders D

更新日期：1995-10-01 00:00:00

abstract：:We have proposed that the lateral inequality of auxin associated with the phototropic response is a consequence of a light-induced impairment of basipolar transport of the hormone. If this is so, the dose-response curve for photoinhibition of auxin transport should resemble that for phototropism. Further, the waveleng...

journal_title：Plant physiology

authors： Shen-Miller J,Cooper P,Gordon SA

更新日期：1969-04-01 00:00:00

abstract：:This work tested one aspect of the relations between membrane permeability and fruit ripening. Membrane permeability was measured as [(3)H]water efflux rate from preloaded fruit pericarp disks. Different stages of fruit development were compared between two tomato (Lycopersicon esculentum Mill) strains: the normal Rut...

journal_title：Plant physiology

authors： Poovaiah BW,Mizrahi Y,Dostal HC,Cherry JH,Leopold AC

更新日期：1975-12-01 00:00:00

abstract：:Using intact leaves of Spinacia oleracea (L.), reversible temperature-induced changes in chlorophyll fluorescence emitted at room temperature and at 77K were studied. Interpretation of fluorescence at 77K was largely facilitated by developing a new method to minimize reabsorption artifacts (;diluted leaf-powder'). Lea...

journal_title：Plant physiology

authors： Weis E

更新日期：1984-02-01 00:00:00

abstract：:LeCTR1 was initially isolated by both differential display reverse transcriptase-polymerase chain reaction screening for tomato (Lycopersicon esculentum) fruit ethylene-inducible genes and through homology with the Arabidopsis CTR1 cDNA. LeCTR1 shares strong nucleotide sequence homology with Arabidopsis CTR1, a gene a...

journal_title：Plant physiology

authors： Leclercq J,Adams-Phillips LC,Zegzouti H,Jones B,Latché A,Giovannoni JJ,Pech JC,Bouzayen M

更新日期：2002-11-01 00:00:00

abstract：:Brassinosteroids (BRs) play important roles throughout plant development. Although many genes have been identified that are involved in BR biosynthesis, genetic approaches in Arabidopsis have led to the identification of only one gene, BRI1, that encodes a membrane receptor for BRs. To expand our knowledge of the mole...

journal_title：Plant physiology

authors： Li J,Nam KH,Vafeados D,Chory J

更新日期：2001-09-01 00:00:00

abstract：:Increasing grain sink strength by improving assimilate uptake capacity could be a promising approach toward getting higher yield. The barley (Hordeum vulgare) sucrose transporter HvSUT1 (SUT) was expressed under control of the endosperm-specific Hordein B1 promoter (HO). Compared with the wild type, transgenic HOSUT g...

journal_title：Plant physiology

authors： Weichert N,Saalbach I,Weichert H,Kohl S,Erban A,Kopka J,Hause B,Varshney A,Sreenivasulu N,Strickert M,Kumlehn J,Weschke W,Weber H

更新日期：2010-02-01 00:00:00

abstract：:Chlorophyll levels in l-cm sections of the youngest fully expanded leaves of normal (Y) Festuca pratensis L. declined almost to zero over a period of 6 days after excision. Chlorophyll in a mutant genotype (NY) remained near the initial level for the whole of this period. Abscisic acid promoted pigment loss in Y but h...

journal_title：Plant physiology

authors： Thomas H,Stoddart JL

更新日期：1975-09-01 00:00:00

abstract：:Pollen viability depends on dynamic vacuolar changes during pollen development involving increases and decreases of vacuolar volume through water and osmolite accumulation and vacuolar fission. Mutations in FAB1A to FAB1D, the genes encoding phosphatidylinositol 3,5-bisphosphate [PI(3,5)P2]-converting kinases, are mal...

journal_title：Plant physiology

authors： Zhang WT,Li E,Guo YK,Yu SX,Wan ZY,Ma T,Li S,Hirano T,Sato MH,Zhang Y

更新日期：2018-08-01 00:00:00

abstract：:Abscisic acid (ABA), auxins, cytokinins, gibberellic acid, alone or in combination were tested for their effects on short-term sucrose uptake in sugar beet (Beta vulgaris cv USH-20) roots. The effect of ABA on active sucrose uptake varied from no effect to the more generally observed 1.4-to 3.0-fold stimulation. A rac...

journal_title：Plant physiology

authors： Saftner RA,Wyse RE

更新日期：1984-04-01 00:00:00

abstract：:Two mutations, amylose-extender and waxy, which affect the proportion of amylose and amylopectin of starch synthesized in the endosperm of maize (Zea mays L.) seeds, are also expressed in the pollen. However, most mutations that affect starch synthesis in the maize endosperm are not expressed in the pollen. In an atte...

journal_title：Plant physiology

authors： Bryce WH,Nelson OE

更新日期：1979-02-01 00:00:00

abstract：:The effect of short-term water stress on photosynthesis of two sunflower hybrids (Helianthus annuus L. cv Sungro-380 and cv SH-3622), differing in productivity under field conditions, was measured. The rate of CO(2) assimilation of young, mature leaves of SH-3622 under well-watered conditions was approximately 30% gre...

journal_title：Plant physiology

authors： Gimenez C,Mitchell VJ,Lawlor DW

更新日期：1992-02-01 00:00:00

abstract：:Very low ethylene production rates were measured in nonpollinated Cyclamen persicum Mill flowers, and no change in production was observed during the whole life span of the flower until death. Normal senescence was accompanied by a gradual discoloration and loss of turgor followed by wilting. Pollination induced a dra...

journal_title：Plant physiology

authors： Halevy AH,Whitehead CS,Kofranek AM

更新日期：1984-08-01 00:00:00

abstract：:Protein phosphorylation, catalyzed by the opposing actions of protein kinases and phosphatases, is a cornerstone of cellular signaling and regulation. Since their discovery, protein phosphatases have emerged as highly regulated enzymes with specificity that rivals their counteracting kinase partners. However, despite ...

journal_title：Plant physiology

authors： Uhrig RG,Moorhead GB

更新日期：2011-12-01 00:00:00

abstract：:Plants coordinate the expression of photosynthesis-related genes in response to growth and environmental changes. In species that conduct two-cell C4 photosynthesis, expression of photosynthesis genes is partitioned such that leaf mesophyll and bundle sheath cells accumulate different components of the photosynthetic ...

journal_title：Plant physiology

authors： Hendron RW,Kelly S

更新日期：2020-03-01 00:00:00

abstract：:Modulation of the transition to flowering plays an important role in the adaptation to drought. The drought-escape (DE) response allows plants to adaptively shorten their life cycle to make seeds before severe stress leads to death. However, the molecular basis of the DE response is unknown. A screen of different Arab...

journal_title：Plant physiology

authors： Riboni M,Galbiati M,Tonelli C,Conti L

更新日期：2013-07-01 00:00:00

abstract：:Cis-Natural Antisense Transcripts (cis-NATs), which overlap protein coding genes and are transcribed from the opposite DNA strand, constitute an important group of noncoding RNAs. Whereas several examples of cis-NATs regulating the expression of their cognate sense gene are known, most cis-NATs function by altering th...

journal_title：Plant physiology

authors： Deforges J,Reis RS,Jacquet P,Sheppard S,Gadekar VP,Hart-Smith G,Tanzer A,Hofacker IL,Iseli C,Xenarios I,Poirier Y

更新日期：2019-05-01 00:00:00

abstract：:Plant architecture is determined by genetic and developmental programs as well as by environmental factors. Sessile plants have evolved a subtle adaptive mechanism that allows them to alter their growth and development during periods of stress. Phytohormones play a central role in this process; however, the molecules ...

journal_title：Plant physiology

authors： Zhang SW,Li CH,Cao J,Zhang YC,Zhang SQ,Xia YF,Sun DY,Sun Y

更新日期：2009-12-01 00:00:00

abstract：:Poplar (Populus tremula x alba) trees (clone INRA 717-1-B4) were cultivated for 1 month in phytotronic chambers with two different levels of ozone (60 and 120 nL L(-1)). Foliar activities of shikimate dehydrogenase (EC 1.1.1.25), phenylalanine ammonia lyase (EC 4.3.1.5), and cinnamyl alcohol dehydrogenase (CAD, EC 1.1...

journal_title：Plant physiology

authors： Cabané M,Pireaux JC,Léger E,Weber E,Dizengremel P,Pollet B,Lapierre C

更新日期：2004-02-01 00:00:00

abstract：:We previously demonstrated that overexpression of the horseradish (Armoracia rusticana) peroxidase prxC1a gene stimulated the growth rate of tobacco (Nicotiana tabacum) plants. Here, the cauliflower mosaic virus 35S::prxC1a construct was introduced into hybrid aspen (Populus sieboldii x Populus grandidentata). The gro...

journal_title：Plant physiology

authors： Kawaoka A,Matsunaga E,Endo S,Kondo S,Yoshida K,Shinmyo A,Ebinuma H

更新日期：2003-07-01 00:00:00

abstract：:Soil salinity is one of the most significant abiotic stresses for crop plants, including legumes. These plants can establish root symbioses with nitrogen-fixing soil bacteria and are able to grow in nitrogen-poor soils. Medicago truncatula varieties show diverse adaptive responses to environmental conditions, such as ...

journal_title：Plant physiology

authors： de Lorenzo L,Merchan F,Blanchet S,Megías M,Frugier F,Crespi M,Sousa C

更新日期：2007-12-01 00:00:00

abstract：:By comparing growth under five different temperature and irradiance regimes (20[deg]C and 800, 250, and 50[mu]mol m-2 s-1 and 5[deg]C and 250 and 50 [mu]mul m-2 s-1), we have examined the effects of light, temperature, and the relative reduction state of photosystem II on plant morphology, freezing tolerance (lethal t...

journal_title：Plant physiology

authors： Gray GR,Chauvin LP,Sarhan F,Huner N

更新日期：1997-06-01 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：:Dimethylallyl diphosphate (DMADP) and geranyl diphosphate (GDP) are the last precursors of isoprene and monoterpenes emitted by leaves, respectively. DMADP and GDP pools were measured in leaves of plants emitting isoprene (Populus alba), monoterpenes (Quercus ilex and Mentha piperita), or nonemitting isoprenoids (Prun...

journal_title：Plant physiology

authors： Nogués I,Brilli F,Loreto F

更新日期：2006-06-01 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