Nitrogen Utilization in Lemna: I. Relations between Net Nitrate Flux, Nitrate Reduction, and in Vitro Activity and Stability of Nitrate Reductase.

abstract：:Plants, algae, and cyanobacteria have developed mechanisms to decrease the energy arriving at reaction centers to protect themselves from high irradiance. In cyanobacteria, the photoactive Orange Carotenoid Protein (OCP) and the Fluorescence Recovery Protein are essential elements in this mechanism. Absorption of stro...

journal_title：Plant physiology

authors： Thurotte A,Lopez-Igual R,Wilson A,Comolet L,Bourcier de Carbon C,Xiao F,Kirilovsky D

更新日期：2015-09-01 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：:Germination of embryonic axes from dormant grain is inhibited by low concentrations of abscisic acid (ABA) compared with axes from nondormant grain. Incubation of dormant grain axes in 0.05 to 50 micromolar ABA caused the prolonged synthesis of a set of heat-stable proteins. Two of these proteins were identified as de...

journal_title：Plant physiology

authors： Ried JL,Walker-Simmons MK

更新日期：1990-06-01 00:00:00

abstract：:Rates of net photosynthesis and translocation, CO(2) diffusive resistances, levels of carbohydrates, total protein, chlorophyll, and inorganic phosphate, and ribulose 1,5-diphosphate carboxylase activity were measured in soybean (Glycine max L. Merrill) leaves to ascertain the effect of altered assimilate demand. To i...

journal_title：Plant physiology

authors： Thorne JH,Koller HR

更新日期：1974-08-01 00:00:00

abstract：:Sucrose synthase (SUS) is phosphorylated on a major, amino-terminal site located at Ser-15 (S15) in the maize (Zea mays) SUS1 protein. Site- and phospho-specific antibodies against a phosphorylated S15 (pS15) peptide allowed direct analysis of S15 phosphorylation in relation to membrane association. Immunoblots of the...

journal_title：Plant physiology

authors： Hardin SC,Winter H,Huber SC

更新日期：2004-04-01 00:00:00

abstract：:A light-induced shrinkage of chloroplasts in vivo could be detected with chloroplasts isolated within 2 minutes of harvesting pea plants. As determined both by packed volume and Coulter counter, the mean volume of chloroplasts from plants in the dark was 39 mu(3), whereas it was 31 mu(3) for chloroplasts from plants i...

journal_title：Plant physiology

authors： Nobel PS

更新日期：1968-05-01 00:00:00

abstract：:As part of a more detailed study on plant tumorigenesis, the action of gibberellic acid (GA(3)) in wounded potato tuber tissues as a model system has been evaluated. GA(3) stimulates total RNA synthesis in wounded tissues, the optimal concentration being 0.1 micromolar. The responsiveness of the tissue toward the horm...

journal_title：Plant physiology

authors： Wielgat B

更新日期：1979-11-01 00:00:00

abstract：:Cellulose is the most abundant biopolymer in the world, the main load-bearing element in plant cell walls, and represents a major sink for carbon fixed during photosynthesis. Previous work has shown that photosynthetic activity is partially regulated by carbohydrate sinks. However, the coordination of cellulose biosyn...

journal_title：Plant physiology

authors： Wormit A,Butt SM,Chairam I,McKenna JF,Nunes-Nesi A,Kjaer L,O'Donnelly K,Fernie AR,Woscholski R,Barter MC,Hamann T

更新日期：2012-05-01 00:00:00

abstract：:An interval on barley (Hordeum vulgare L.) chromosome 7 accounting for significant quantitative trait locus effects for winter hardiness were detected in a winter (Dicktoo) x spring (Morex) barley population (P.M. Hayes, T. Blake, T.H.H. Chen, S. Tragoonrung, F. Chen, A. Pan, and B. Liu [1993] Genome 36: 66-71). Two m...

journal_title：Plant physiology

authors： Van Zee K,Chen FQ,Hayes PM,Close TJ,Chen T

更新日期：1995-07-01 00:00:00

abstract：:We used three-dimensional structured illumination microscopy (3D-SIM) to obtain subdiffraction ("super-resolution") images of plasmodesmata (PD) expressing a green fluorescent protein-tagged viral movement protein (MP) in tobacco (Nicotiana tabacum). In leaf parenchyma cells, we were able to resolve individual compone...

journal_title：Plant physiology

authors： Fitzgibbon J,Bell K,King E,Oparka K

更新日期：2010-08-01 00:00:00

abstract：:The mode of abscisic acid (ABA) uptake was studied in excised leaf and root tissue discs of sugar beet (Beta vulgaris L.). Discs were incubated in buffered medium that contained 1 mm CaCl(2) and [(14)C]ABA. The sensitivity of ABA uptake to metabolic inhibitors and temperature indicated that the ABA transport system ha...

journal_title：Plant physiology

authors： Daie J,Wyse R

更新日期：1983-06-01 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：: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：:Injection of [(14)C]tryptophan into one seed in a soybean fruit resulted in recovery of radiolabel in a fraction that cochromatographed with indoleacetic acid (IAA) through three successive high performance liquid chromatography separations. Label was found in the putative IAA fraction in all of the fruit tissues samp...

journal_title：Plant physiology

authors： Hein MB,Brenner ML,Brun WA

更新日期：1986-10-01 00:00:00

abstract：:Based on the ability of phytosiderophores to chelate other heavy metals besides iron (Fe), phytosiderophores were suggested to prevent graminaceous plants from cadmium (Cd) toxicity. To assess interactions between Cd and phytosiderophore-mediated Fe acquisition, maize (Zea mays) plants were grown hydroponically under ...

journal_title：Plant physiology

authors： Meda AR,Scheuermann EB,Prechsl UE,Erenoglu B,Schaaf G,Hayen H,Weber G,von Wirén N

更新日期：2007-04-01 00:00:00

abstract：:Five recombinant inbred lines (RILs) of Arabidopsis (Arabidopsis thaliana), previously selected from the Bay-0 x Shahdara RIL population on the basis of differential leaf senescence phenotypes (from early senescing to late senescing) when cultivated under nitrogen (N)-limiting conditions, were analyzed to monitor meta...

journal_title：Plant physiology

authors： Diaz C,Lemaître T,Christ A,Azzopardi M,Kato Y,Sato F,Morot-Gaudry JF,Le Dily F,Masclaux-Daubresse C

更新日期：2008-07-01 00:00:00

abstract：:A new isolation procedure has resulted in an improved yield of stable 68S chloroplast ribosomes from Euglena gracilis var. bacillaris. Chloroplasts are isolated by suspending the cells in buffer I (sorbitol, 250 mm; sucrose, 250 mm; Ficoll, 2.5% [w/v]; magnesium acetate, 1 mm; bovine serum albumin, 0.01% [w/v]; mercap...

journal_title：Plant physiology

authors： Schwartzbach SD,Freyssinet G,Schiff JA

更新日期：1974-04-01 00:00:00

abstract：:While the metabolic networks in developing seeds during the period of reserve accumulation have been extensively characterized, much less is known about those present during seed desiccation and subsequent germination. Here we utilized metabolite profiling, in conjunction with selective mRNA and physiological profilin...

journal_title：Plant physiology

authors： Fait A,Angelovici R,Less H,Ohad I,Urbanczyk-Wochniak E,Fernie AR,Galili G

更新日期：2006-11-01 00:00:00

abstract：:Proanthocyanidins (PAs) are secondary metabolites that contribute to plant protection and crop quality. Persimmon (Diospyros kaki) has a unique characteristic of accumulating large amounts of PAs, particularly in its fruit. Normal astringent-type and mutant nonastringent-type fruits show different PA accumulation patt...

journal_title：Plant physiology

authors： Akagi T,Katayama-Ikegami A,Kobayashi S,Sato A,Kono A,Yonemori K

更新日期：2012-02-01 00:00:00

abstract：:Excised corn roots, Zea mays, had radioactively labeled solution applied at two points along their length, for 1 minute, and were then kept in dilute, unlabeled nutrient solution. During this "chase" period, exudate was collected at 1-minute intervals, and its content of radioions was determined. Two pulses of label a...

journal_title：Plant physiology

authors： Epstein E,Norlyn JD

更新日期：1973-10-01 00:00:00

abstract：:Pathogen-associated molecular patterns (PAMPs) trigger plant defenses when perceived by surface-localized immune receptors. PAMP-triggered immunity (PTI) plays a vital role in the resistance of plants to numerous potential pathogens. MicroRNA (miRNA) biogenesis is known to be important for PTI, but miRNA species invol...

journal_title：Plant physiology

authors： Li Y,Zhang Q,Zhang J,Wu L,Qi Y,Zhou JM

更新日期：2010-04-01 00:00:00

abstract：:Aluminum-activated malate transporters (ALMTs) form an important family of anion channels involved in fundamental physiological processes in plants. Because of their importance, the role of ALMTs in plant physiology is studied extensively. In contrast, the structural basis of their functional properties is largely unk...

journal_title：Plant physiology

authors： Zhang J,Baetz U,Krügel U,Martinoia E,De Angeli A

更新日期：2013-10-01 00:00:00

abstract：:Experiments were performed to confirm that the aldimine bond formation is a spontaneous reaction, because attempts to find an enzyme catalyzing the last decisive step in betaxanthin biosynthesis, the aldimine formation, failed. Feeding different amino acids to betalain-forming hairy root cultures of yellow beet (Beta ...

journal_title：Plant physiology

authors： Schliemann W,Kobayashi N,Strack D

更新日期：1999-04-01 00:00:00

abstract：:Introduction of the pea (Pisum sativum L.) lectin (PSL) gene into white clover (Trifolium repens L.) hairy roots facilitates nodulation by the nitrogen-fixing bacterium Rhizobium leguminosarum biovar viciae, which normally nodulates pea and not white clover (C.L. Diaz, L.S. Melchers, P.J.J. Hooykaas, B.J.J. Lugtenberg...

journal_title：Plant physiology

authors： Diaz CL,Logman T,Stam HC,Kijne JW

更新日期：1995-12-01 00:00:00

abstract：:Lettuce (Lactuca sativa) seeds var. Grand Rapids could be maintained many weeks in the dark without germination. Following illumination with white light, a gradual increase in polyribosome population up to the time of germination was demonstrated by sucrose gradient centrifugation. Polysomes could not be detected in i...

journal_title：Plant physiology

authors： Mitchell RC,Villiers TA

更新日期：1972-12-01 00:00:00

abstract：:Translocation profiles along the path were studied using a modified flap-feeding technique for the simultaneous application of THO and (14)C-sucrose. A re-evaluation of a mathematical model for phloem transport with reversible lateral exchange of tracer along the path indicates that lower apparent velocities for THO a...

journal_title：Plant physiology

authors： Cataldo DA,Christy AL,Coulson CL

更新日期：1972-05-01 00:00:00

abstract：:An oligomycin concentration that specifically inhibits oxidative phosphorylation was added to isolated barley (Hordeum vulgare L.) leaf protoplasts at various irradiances and carbon dioxide concentrations. At saturating as well as low light intensities, photosynthetic oxygen evolution was decreased as a result of the ...

journal_title：Plant physiology

authors： Kromer S,Malmberg G,Gardestrom P

更新日期：1993-07-01 00:00:00

abstract：:Following excision, etiolated epicotyl segments of Pisum sativum L. cv. Alaska exhibit a marked hyperpolarization of membrane potential which is followed by a linear accumulation of K(+) when segments are incubated in Higinbotham nutrient solution. Segments aged for several hours and then reexcised display only a slig...

journal_title：Plant physiology

authors： Pierce WS

更新日期：1981-04-01 00:00:00

abstract：:The effect of salicylic acid (SA) on respiration and mitochondrial function was examined in tobacco (Nicotiana tabacum) suspension cell cultures in the range of 0.01 to 5 mm. Cells rapidly accumulated SA up to 10-fold of the externally applied concentrations. At the lower concentrations, SA accumulation was transitory...

journal_title：Plant physiology

authors： Norman C,Howell KA,Millar AH,Whelan JM,Day DA

更新日期：2004-01-01 00:00:00

abstract：:Membrane fractions from mature silver beet (Beta vulgaris) deveined leaf and leaf stem homogenates have associated Ca(2+) -dependent protein kinase. The Ca(2+) -dependent protein kinase activity is associated with plasma membranes (density 1.14-1.18 grams per cubic centimeter) as determined from copurification on isop...

journal_title：Plant physiology

authors： Klucis E,Polya GM

更新日期：1988-09-01 00:00:00