Endogenous gibberellin and abscisic Acid content as related to senescence of detached lettuce leaves.

abstract：:The major nucleoside triphosphatase (NTPase) activities in mammalian and pea (Pisum sativum L.) nuclei are associated with enzymes that are very similar both biochemically and immunochemically. The major NTPase from rat liver nuclei appears to be a 46-kD enzyme that represents the N-terminal portion of lamins A and C,...

journal_title：Plant physiology

authors： Tong CG,Dauwalder M,Clawson GA,Hatem CL,Roux SJ

更新日期：1993-03-01 00:00:00

abstract：:Maize (Zea mays L.) kernel pedicels, including vascular tissues, pedicel parenchyma, placento-chalazal tissue, and the surrounding pericarp, contained two forms of glutamine synthetase (EC 6.3.1.2), separable by anion exchange chromatography under mildly acidic conditions. The earlier-eluting activity (GS(p1)), but no...

journal_title：Plant physiology

authors： Muhitch MJ

更新日期：1989-11-01 00:00:00

abstract：:Adenine phosphoribosyltransferase activity was measured in extracts of soybean (Glycine max var. Acme) callus and of senescing barley leaves (Hordeum distichon c.v. Prior). The enzyme from soybean callus had Michaelis constants for adenine and 5-phosphoribosyl pyrophosphate of 1.5 and 7.5 mum respectively and was inhi...

journal_title：Plant physiology

authors： Nicholls PB,Murray AW

更新日期：1968-04-01 00:00:00

abstract：:Plasma membranes were isolated from oat (Avena sativa) roots by the phase-partitioning method. The membranes were exposed to repeated periods of moderate water-deficit stress, and a water-deficit tolerance was induced (acclimated plants). The plasma membranes of the controls (nonacclimated plants) were characterized b...

journal_title：Plant physiology

authors： Norberg P,Liljenberg C

更新日期：1991-08-01 00:00:00

abstract：:It was previously reported that the hypernodulating soybean (Glycine max [L.] Merr.) mutants, derived from the cultivar Williams, had higher root concentration of isoflavonoid compounds (daidzein, genistein, and coumestrol) than did Williams at 9 to 12 days after inoculation with Bradyrhizobium japonicum. These compou...

journal_title：Plant physiology

authors： Cho MJ,Harper JE

更新日期：1991-08-01 00:00:00

abstract：:We compared nodule initiation in lateral roots of Pisum sativum (L.) cv Sparkle and in a low-nodulating mutant E2 (sym 5). In Sparkle, about 25% of the infections terminated in the epidermis, a similar number stopped in the cortex, and 50% resulted in the formation of a nodule meristem or an emerged nodule. The mutant...

journal_title：Plant physiology

authors： Guinel FC,Larue TA

更新日期：1991-11-01 00:00:00

abstract：:Comparative studies of chlorophyll a fluorescence, measured with a pulse amplitude modulated fluorometer, and of the pigment composition of leaves, suggest a specific role of zeaxanthin, a carotenoid formed in the xanthophyll cycle, in protecting the photosynthetic apparatus against the adverse effects of excessive li...

journal_title：Plant physiology

authors： Demmig B,Winter K,Krüger A,Czygan FC

更新日期：1987-06-01 00:00:00

abstract：:Using a genetic approach, we have identified and characterized a novel protein, named Msf1 (Maintenance factor for photosystem I), that is required for the maintenance of specific components of the photosynthetic apparatus in the green alga Chlamydomonas reinhardtii Msf1 belongs to the superfamily of light-harvesting ...

journal_title：Plant physiology

authors： Zhao L,Cheng D,Huang X,Chen M,Dall'Osto L,Xing J,Gao L,Li L,Wang Y,Bassi R,Peng L,Wang Y,Rochaix JD,Huang F

更新日期：2017-08-01 00:00:00

abstract：:Endoplasmic reticulum membranes stripped of attached ribosomes were isolated from homogenates of germinating castor bean (Ricinus communis L.) endosperm by sucrose density gradient centrifugation. The isolated endoplasmic reticulum fraction was further separated into two major membrane subfractions by centrifugation o...

journal_title：Plant physiology

authors： Conder MJ,Lord JM

更新日期：1983-06-01 00:00:00

abstract：:Winter cultivars of rye (Secale cereale L., cv Musketeer) and wheat (Triticum aestivum L. cvs Kharkov and Monopol), but not a spring cultivar of wheat (Glenlea), grown at cold-hardening temperatures showed, at high irradiances, a higher proportion of oxidized to reduced primary, stable quinone receptor (QA) than did t...

journal_title：Plant physiology

authors： Oquist G,Hurry VM,Huner N

更新日期：1993-01-01 00:00:00

abstract：:Sections of sugar beet (Beta vulgaris L.) taproot were incubated in various concentrations of mannitol. At 0.4, 0.6, and 0.8 molar, the membrane electrical potential difference (E(m)) averaged about -130 millivolts; at 0.2 molar, about -90 millivolts; and at 0 molar, between -60 and -80 millivolts. Additions of 10 mil...

journal_title：Plant physiology

authors： Kinraide TB,Wyse RE

更新日期：1986-12-01 00:00:00

abstract：:An oxidative chain reaction of sulfite initiated by the superoxide ion produced in the Mehler reaction has been implicated in the damage of plants exposed to sulfur dioxide. The toxicity of SO(2) may be alleviated by free radical scavenging systems acting to terminate this chain reaction. Hence, the relative sensitivi...

journal_title：Plant physiology

authors： Madamanchi NR,Alscher RG

更新日期：1991-09-01 00:00:00

abstract：:Harsh hakea (Hakea prostrata R.Br.) is a member of the Proteaceae family, which is highly represented on the extremely nutrient-impoverished soils in southwest Australia. When phosphorus is limiting, harsh hakea develops proteoid or cluster roots that release carboxylates that mobilize sparingly soluble phosphate in t...

journal_title：Plant physiology

authors： Shane MW,Cramer MD,Funayama-Noguchi S,Cawthray GR,Millar AH,Day DA,Lambers H

更新日期：2004-05-01 00:00:00

abstract：:Investigation was made on the effect of partial depletion of polyamines (PAs), induced by treatment with inhibitors of the biosynthesis of PAs, on the distribution of cells at each phase of the cell cycle in Catharanthus roseus (L.) G. Don. cells in suspension cultures, using flow cytometry. More cells treated with in...

journal_title：Plant physiology

authors： Maki H,Ando S,Kodama H,Komamine A

更新日期：1991-08-01 00:00:00

abstract：:Evidence is presented that intracellular ammonium is trapped in vacuoles of maize (Zea mays L.) root tips because of rapid movement of ammonia between cytoplasm and vacuoles. The concentration of cytoplasmic ammonium is estimated to be <15 mum at extracellular ammonium concentrations up to 1 mm. The implications for p...

journal_title：Plant physiology

authors： Roberts JK,Pang MK

更新日期：1992-11-01 00:00:00

abstract：:Researchers have long endeavored to produce modified fatty acids in easily managed crop plants where they are not natively found. An important step toward this goal has been the biosynthesis of these valuable products in model oilseeds. The successful production of such fatty acids has revealed barriers to the broad a...

journal_title：Plant physiology

authors： Lunn D,Smith GA,Wallis JG,Browse J

更新日期：2018-06-01 00:00:00

abstract：:Northern blot hybridization analyzes revealed that poly(A(+)) RNAs homologous to eight heat shock (HS)-specific cDNA clones were induced by arsenite (As) or Cd treatments. The mRNAs accumulated slower, and maximum accumulations were consistently lower than HS-induced levels. Prolonged treatment with low concentrations...

journal_title：Plant physiology

authors： Edelman L,Czarnecka E,Key JL

更新日期：1988-04-01 00:00:00

abstract：:We screened a total of 1365 pea (Pisum sativum) lines for response to inoculation with Agrobacterium tumefaciens, strain B6, and characterized resistance in one cultivar, Sweet Snap. Sweet Snap seedlings were highly resistant to tumorigenesis under most conditions. Resistance was overcome at inoculum concentrations of...

journal_title：Plant physiology

authors： Robbs SL,Hawes MC,Lin HJ,Pueppke SG,Smith LY

更新日期：1991-01-01 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：:The primary storage protein of oat (Avena sativa L.) seeds, globulin, was shown to have a specific carbohydrate-binding activity. The globulin was capable of hemagglutinating rabbit red blood cells and this hemagglutination was inhibited by the beta-glucan, laminarin, as well as by carbohydrate which had been cleaved ...

journal_title：Plant physiology

authors： Langston-Unkefer PJ,Gade W

更新日期：1984-03-01 00:00:00

abstract：:The proton transport properties of plasma membrane and tonoplast vesicles isolated from red beet (Beta vulgaris L.) storage tissue were examined and compared. Membrane vesicles isolated with 250 millimolar KCl in the homogenization media and recovered at low density following sucrose density gradient centrifugation di...

journal_title：Plant physiology

authors： Giannini JL,Briskin DP

更新日期：1987-07-01 00:00:00

abstract：:We found similarities between the effects of low night temperatures (5 degrees C-10 degrees C) and slowly imposed water stress on photosynthesis in grapevine (Vitis vinifera L.) leaves. Exposure of plants growing outdoors to successive chilling nights caused light- and CO(2)-saturated photosynthetic O(2) evolution to ...

journal_title：Plant physiology

authors： Flexas J,Badger M,Chow WS,Medrano H,Osmond CB

更新日期：1999-10-01 00:00:00

abstract：:Suberin is a complex hydrophobic polymer that acts as a barrier controlling water and solute fluxes and restricting pathogen infections. Suberin is deposited immediately outside of the plasmalemma in the cell wall of certain tissues such as endodermis of roots, aerial and underground periderms, and seed coats. Suberin...

journal_title：Plant physiology

authors： Delude C,Fouillen L,Bhar P,Cardinal MJ,Pascal S,Santos P,Kosma DK,Joubès J,Rowland O,Domergue F

更新日期：2016-07-01 00:00:00

abstract：:Seeds of paper birch (Betula papyrifera Marsh.) were induced to germinate by prechilling at 3 C or by red light. The light requirement was mediated by phytochrome and the action of phytochrome during prechilling was investigated. Red irradiation (R) prior to prechilling markedly enhanced the effectiveness of the prech...

journal_title：Plant physiology

authors： Bevington JM

更新日期：1981-04-01 00:00:00

abstract：:Yariv phenylglycosides [1,3,5-tri(p-glycosyloxyphenylazo)-2,4,6-trihydroxybenzene] are a group of chemical compounds that selectively bind to arabinogalactan proteins (AGPs), a type of plant proteoglycan. Yariv phenylglycosides are widely used as cytochemical reagents to perturb the molecular functions of AGPs as well...

journal_title：Plant physiology

authors： Kitazawa K,Tryfona T,Yoshimi Y,Hayashi Y,Kawauchi S,Antonov L,Tanaka H,Takahashi T,Kaneko S,Dupree P,Tsumuraya Y,Kotake T

更新日期：2013-03-01 00:00:00

abstract：:The Dunaliella salina photosynthetic apparatus organization and function was investigated in wild type (WT) and a mutant (zea1) lacking all beta,beta-epoxycarotenoids derived from zeaxanthin (Z). The zea1 mutant lacked antheraxanthin, violaxanthin, and neoxanthin from its thylakoid membranes but constitutively accumul...

journal_title：Plant physiology

authors： Jin E,Yokthongwattana K,Polle JE,Melis A

更新日期：2003-05-01 00:00:00

abstract：:Although a number of plant natural products are derived from benzoic acid, the biosynthesis of this structurally simple precursor is poorly understood. Hypericum calycinum cell cultures accumulate a benzoic acid-derived xanthone phytoalexin, hyperxanthone E, in response to elicitor treatment. Using a subtracted comple...

journal_title：Plant physiology

authors： Gaid MM,Sircar D,Müller A,Beuerle T,Liu B,Ernst L,Hänsch R,Beerhues L

更新日期：2012-11-01 00:00:00

abstract：:A number of plants have been surveyed with respect to isolation by mild grinding in large quantities of leaf cells. The extent of recovery of mesophyll cells per unit leaf area was found to vary with plant species and the method of grinding. Greater than 70% recovery was obtained from the leaves of Canna indica L., Cr...

journal_title：Plant physiology

authors： Kulandaivelu G,Gnanam A

更新日期：1974-10-01 00:00:00

abstract：:In culture, the phytopathogenic fungus Phytophthora cryptogea secretes a protein which elicits hypersensitive-like necroses and protects tobacco plants against invasion by the pathogen Phytophthora parasitica var. nicotianae. This protein, named cryptogein, has been purified and its amino acid sequence determined. In ...

journal_title：Plant physiology

authors： Blein JP,Milat ML,Ricci P

更新日期：1991-02-01 00:00:00

abstract：:The structure of phosphatidylinositol in barley (Hordeum vulgare) aleurone layers was investigated by chemical degradation. In vivo myo-[2-(3)H]inositol-labeled phosphatidylinositol was first converted to glycerophosphoinositol and, subsequently, after removal of the glycerol moiety, to inositol monophosphate. Here, w...

journal_title：Plant physiology

authors： Murthy PP,Pliska-Matyshak G,Keranen LM,Lam P,Mueller HH,Bhuvarahamurthy N

更新日期：1992-04-01 00:00:00