Photosynthesis, Growth, and Ultraviolet Irradiance Absorbance of Cucurbita pepo L. Leaves Exposed to Ultraviolet-B Radiation (280-315 nm).

abstract：:Legume-rhizobia symbiosis is a time-limited process due to the onset of senescence, which results in the degradation of host plant cells and symbiosomes. A number of transcription factors, proteases, and functional genes have been associated with nodule senescence; however, whether other proteases or transcription fac...

journal_title：Plant physiology

authors： Deng J,Zhu F,Liu J,Zhao Y,Wen J,Wang T,Dong J

更新日期：2019-12-01 00:00:00

abstract：:The effect of NaCl and Na(2)SO(4) salinity on NO(3) (-) assimilation in young barley (Hordeum vulgare L. var Numar) seedlings was studied. The induction of the NO(3) (-) transporter was affected very little; the major effect of the salts was on its activity. Both Cl(-) and SO(4) (2-) salts severely inhibited uptake of...

journal_title：Plant physiology

authors： Aslam M,Huffaker RC,Rains DW

更新日期：1984-10-01 00:00:00

abstract：:Dark H(2) metabolism was studied in marine and fresh water red algae, the green alga, Chlamydomonas, and mosses. A time variable and temperature-sensitive anaerobic incubation was required prior to H(2) evolution. H(2) evolution was sensitive to disalicylidenepropanediamine. An immediate H(2) uptake was observed in th...

journal_title：Plant physiology

authors： Ben-Amotz A,Erbes DL,Riederer-Henderson MA,Peavey DG,Gibbs M

更新日期：1975-07-01 00:00:00

abstract：:Phaseolus vulgaris mitochondria incubated in sucrose swell rapidly upon the addition of phospholipase A. Bovine serum albumin inhibits the swelling. The release of free fatty acids as a result of phospholipase A action on the mitochondria is detected only in the presence of bovine serum albumin, which promotes the hyd...

journal_title：Plant physiology

authors： Earnshaw MJ,Truelove B

更新日期：1970-03-01 00:00:00

abstract：:The distribution of solutes in the various cells of sugar beet (Beta vulgaris L.) source leaves, petioles, and sink leaves was studied in tissue prepared by freeze-substitution. The differences in degree of cryoprotection indicated that sieve elements and companion cells of the source leaf, petiole, and sink leaf cont...

journal_title：Plant physiology

authors： Geiger DR,Giaquinta RT,Sovonick SA,Fellows RJ

更新日期：1973-12-01 00:00:00

abstract：:Evidence that indoleacetic acid (IAA) conjugates are metabolized via enzyme-catalyzed hydrolysis to free IAA and that their biological activities are related to the rates at which they are hydrolyzed by the tissue is presented. These conclusions are based on the following observations. Slow but continuous decarboxylat...

journal_title：Plant physiology

authors： Hangarter RP,Good NE

更新日期：1981-12-01 00:00:00

abstract：:Trehalose, an alpha,alpha-diglucoside, induced a rapid blackening and death of shoot tips of Cuscuta reflexa (dodder) cultured in vitro. The onset of toxic symptom was delayed if any of the several sugars which support the in vitro growth of Cuscuta was supplied with trehalose. The rate of trehalose uptake or its accu...

journal_title：Plant physiology

authors： Veluthambi K,Mahadevan S,Maheshwari R

更新日期：1982-06-01 00:00:00

abstract：:The effect of leaf water deficit on net CO(2) assimilation was studied under two conditions: in one, the stomata were allowed to contribute to the regulation of CO(2) assimilation; in the other, air was forced through the leaf at a constant rate to overcome the effects of change in stomatal resistance accompanying cha...

journal_title：Plant physiology

authors： Mederski HJ,Chen LH,Curry RB

更新日期：1975-04-01 00:00:00

abstract：:Although researchers have established that DNA methylation and active demethylation are dynamically regulated in plant cells, the molecular mechanism for the regulation of active DNA demethylation is not well understood. By using an Arabidopsis (Arabidopsis thaliana) line expressing the Promoter RESPONSIVE TO DEHYDRAT...

journal_title：Plant physiology

authors： Wang C,Dong X,Jin D,Zhao Y,Xie S,Li X,He X,Lang Z,Lai J,Zhu JK,Gong Z

更新日期：2015-03-01 00:00:00

abstract：:Induction of secreted acid phosphatase (APase) is a universal response of higher plants to phosphate (Pi) limitation. These enzymes are thought to scavenge Pi from organophosphate compounds in the rhizosphere and thus to increase Pi availability to plants when Pi is deficient. The tight association of secreted APase w...

journal_title：Plant physiology

authors： Wang L,Li Z,Qian W,Guo W,Gao X,Huang L,Wang H,Zhu H,Wu JW,Wang D,Liu D

更新日期：2011-11-01 00:00:00

abstract：:In recent years, access to complete genomic sequences, coupled with rapidly accumulating data related to RNA and protein expression patterns, has made it possible to determine comprehensively how genes contribute to complex phenotypes. However, for major crop plants, publicly available, standard platforms for parallel...

journal_title：Plant physiology

authors： Close TJ,Wanamaker SI,Caldo RA,Turner SM,Ashlock DA,Dickerson JA,Wing RA,Muehlbauer GJ,Kleinhofs A,Wise RP

更新日期：2004-03-01 00:00:00

abstract：:Either NO(3) (-) (16 millimolar) or NH(4) (+) (1 millimolar) completely inhibited infection and nodulation of white clover seedlings (Trifoliin repens) inoculated with Rhizobium trifolii. The binding of R. trifolii to root hairs and the immunologically detectable levels of the plant lectin, trifoliin, on the root hair...

journal_title：Plant physiology

authors： Dazzo FB,Brill WJ

更新日期：1978-07-01 00:00:00

abstract：:Petunia (Petunia hybrida) pollen requires flavonols (Fl) to germinate. Adding kaempferol to Fl-deficient pollen causes rapid and synchronous germination and tube outgrowth. We exploited this system to identify genes responsive to Fls and to examine the changes in gene expression that occur during the first 0.5 h of po...

journal_title：Plant physiology

authors： Guyon VN,Astwood JD,Garner EC,Dunker AK,Taylor LP

更新日期：2000-06-01 00:00:00

abstract：:The active transport of CO(2) in the cyanobacterium Synechococcus UTEX 625 was inhibited by H(2)S. Treatment of the cells with up to 150 micromolar H(2)S + HS(-) at pH 8.0 had little effect on Na(+)-dependent HCO(3) (-) transport or photosynthetic O(2) evolution, but CO(2) transport was inhibited by more than 90%. CO(...

journal_title：Plant physiology

authors： Espie GS,Miller AG,Canvin DT

更新日期：1989-09-01 00:00:00

abstract：:Crude aqueous extracts from Arabidopsis leaves were subjected to chromatographic separations, after which the different fractions were monitored for antimicrobial activity using the fungus Neurospora crassa as a test organism. Two major fractions were obtained that appeared to have the same abundance in leaves from un...

journal_title：Plant physiology

authors： Tierens KF,Thomma BP,Brouwer M,Schmidt J,Kistner K,Porzel A,Mauch-Mani B,Cammue BP,Broekaert WF

更新日期：2001-04-01 00:00:00

abstract：:Two isoforms of fructose 1,6-bisphosphatase are present in the green alga Selenastrum minutum. The isoenzymes can be separated with ionexchange chromatography or acid precipitation. The stability of the two isoenzymes differ largely. The acid insoluble enzyme exhibits properties similar to that of the enzyme from the ...

journal_title：Plant physiology

authors： Botha FC,Turpin DH

更新日期：1990-08-01 00:00:00

abstract：:The functional and thermodynamic characteristics of the ubiquinolcytochrome (Cyt) c oxidoreductase in a Cyt b/c(1)-enriched fraction (defined S-1) isolated from Jerusalem artichoke mitochondria (JAM) (Helianthus tuberosus), have been analyzed. Fraction S-1, obtained through deoxycholate-KCl fractionation procedure, co...

journal_title：Plant physiology

authors： Esposti MD,Flamini E,Zannoni D

更新日期：1985-03-01 00:00:00

abstract：:Fresh fruit and vegetables are a major source of ascorbic acid (vitamin C), an important antioxidant for the human diet and also for plants. Ascorbic acid content in fruit exhibits a quantitative inheritance. Quantitative trait loci (QTL) for ascorbic acid content have been mapped in three tomato populations derived f...

journal_title：Plant physiology

authors： Stevens R,Buret M,Duffé P,Garchery C,Baldet P,Rothan C,Causse M

更新日期：2007-04-01 00:00:00

abstract：:Lipoxidase, in the cotyledons of squash (Cucurbita moscata) seedlings grown in the dark, reached its peak activity on the fifth day and then declined to its lowest activity on the eighth day. Under continuous irradiation, the rate of enzyme disappearance was accelerated by red (655 mmu) and was retarded by far-red (73...

journal_title：Plant physiology

authors： Surrey K

更新日期：1967-03-01 00:00:00

abstract：:A method for the preparation of developmentally staged microspores and young pollen from maize (Zea mays) has been devised. The preparations are of sufficient purity and quantity for biochemical analysis, including the analysis of steady-state protein and RNA populations associated with each stage. A major transition ...

journal_title：Plant physiology

authors： Bedinger PA,Edgerton MD

更新日期：1990-02-01 00:00:00

abstract：:A water-soluble chlorophyll protein (WSCP) in cauliflower (Brassica oleracea L.) was purified and its N-terminal sequence was determined. Forty-six of 48 residues of the sequence completely matched those of the drought-induced 22-kD protein (BnD22) in rapeseed (Brassica napus L.). All 40 sequenced residues of WSCP fro...

journal_title：Plant physiology

authors： Nishio N,Satoh H

更新日期：1997-10-01 00:00:00

abstract：:The EGG CELL1 (EC1) gene family of Arabidopsis (Arabidopsis thaliana) comprises five members that are specifically expressed in the egg cell and redundantly control gamete fusion during double fertilization. We investigated the activity of all five EC1 promoters in promoter-deletion studies and identified SUF4 (SUPPRE...

journal_title：Plant physiology

authors： Resentini F,Cyprys P,Steffen JG,Alter S,Morandini P,Mizzotti C,Lloyd A,Drews GN,Dresselhaus T,Colombo L,Sprunck S,Masiero S

更新日期：2017-01-01 00:00:00

abstract：:Cysthathionine [gamma]-synthase (CS), an enzyme involved in methionine biosynthesis, was purified from an acetone powder prepared from wheat (Triticum aestivum L.). After several chromatographic steps and radiolabeling of the partially purified enzyme with sodium cyanoboro[3H]hydride, a single polypeptide with a molec...

journal_title：Plant physiology

authors： Kreft BD,Townsend A,Pohlenz HD,Laber B

更新日期：1994-04-01 00:00:00

abstract：:Ethylene at hormonally significant levels inhibited net photosynthesis of the cultivated peanut (Arachis hypogaea L.) as measured by gas analysis. Upon the removal of ethylene, the inhibition was naturally overcome at the concentration-exposure duration combinations tested. Increased length of exposure of 1 microliter...

journal_title：Plant physiology

authors： Pallas JE,Kays SJ

更新日期：1982-08-01 00:00:00

abstract：:Protoplasts and intact chloroplasts isolated from Agropyron smithii Rybd. were utilized in an effort to determine the limiting factor(s) for photosynthesis at supraoptimal temperatures. Saturated CO(2)-dependent O(2) evolution had a temperature optimum of 35 degrees C for both protoplasts and intact chloroplasts. A sh...

journal_title：Plant physiology

authors： Kobza J,Uribe EG,Williams GJ

更新日期：1984-06-01 00:00:00

abstract：:Chlorophyll a fluorescence of Synechococcus UTEX 625 was quenched during the transport of inorganic carbon, even when CO(2) fixation was inhibited by iodoacetamide. Measurements with a pulse modulation fluorometer showed that at least 75% of the quenching was due to oxidation of Q(a), the primary acceptor of photosyst...

journal_title：Plant physiology

authors： Miller AG,Espie GS,Canvin DT

更新日期：1988-09-01 00:00:00

abstract：:Alternative oxidase (AOX) is encoded in small multigene families in plants. Functional analysis of the Arabidopsis (Arabidopsis thaliana) alternative oxidase 1c (AtAOX1c) promoter, an AOX gene not induced by oxidative stress, indicated that regulation of expression was complex, with the upstream promoter region contai...

journal_title：Plant physiology

authors： Ho LH,Giraud E,Lister R,Thirkettle-Watts D,Low J,Clifton R,Howell KA,Carrie C,Donald T,Whelan J

更新日期：2007-04-01 00:00:00

abstract：:The binding of ferredoxin-NADP reductase to spinach chloroplast membranes was studied by washing the membranes with different media. Release of the enzyme from the thylakoids was greater in 0.75 millimolar EDTA but was not complete inasmuch as 20% the activity remained membrane-bound after three washes.A Scatchard plo...

journal_title：Plant physiology

authors： Carrillo N,Vallejos RH

更新日期：1982-01-01 00:00:00

abstract：:Solid-state nuclear magnetic resonance relaxation experiments were used to study the rigidity and spatial proximity of polymers in sugar beet (Beta vulgaris) cell walls. Proton T1rho decay and cross-polarization patterns were consistent with the presence of rigid, crystalline cellulose microfibrils with a diameter of ...

journal_title：Plant physiology

authors： Renard CM,Jarvis MC

更新日期：1999-04-01 00:00:00

abstract：:Cold hardiness of leaf blades, leaf sheaths, culms, rhizomes, and leaf buds in wintering Sasa senanensis (Fr. et Sav.) Rehder, a dwarf bamboo, was studied paying special attention to the types of resistance mechanisms which were determined with differential thermal analysis. Coincidence of LT(25) (lethal temperature a...

journal_title：Plant physiology

authors： Ishikawa M

更新日期：1984-05-01 00:00:00