Collection and Identification of Allelopathic Compounds from the Undisturbed Root System of Bigalta Limpograss (Hemarthria altissima).

abstract：:The ATP content of isolated wheat (Triticum aestivum L. var. Polk) embryos increases 5-fold during the first 30 minutes and 10-fold during the first hour of germination to 80% of maximum. The ATP level remains at approximately 800 nanomoles per gram of tissue during the next 15 hours. ADP, AMP, and total adenosine pho...

journal_title：Plant physiology

authors： Obendorf RL,Marcus A

更新日期：1974-05-01 00:00:00

abstract：:One of the most abundant proteins in maize (Zea mays L.) embryos is the molecular weight 63,000 globulin encoded by the Glb1 gene. To obtain DNA clones corresponding to Glb1, a cDNA library corresponding to RNA from developing maize embryos was constructed in a lambda expression vector and screened with antibodies spe...

journal_title：Plant physiology

authors： Belanger FC,Kriz AL

更新日期：1989-10-01 00:00:00

abstract：:The linear response of photosynthesis to light at low photon flux densities is known to change abruptly in the vicinity of the light compensation point so that the quantum yield seems to decrease as radiation increases. We studied this ;Kok effect' in attached sunflower (Helianthus annuus L. cv IS894) leaves using gas...

journal_title：Plant physiology

authors： Sharp RE,Matthews MA,Boyer JS

更新日期：1984-05-01 00:00:00

abstract：:The regulation of cytokinin oxidase activity in callus tissues of Phaseolus vulgaris L. cv Great Northern has been examined using an assay based on the oxidation of N(6)-(Delta(2)-isopentenyl)adenine-8-(14)C (i(6) Ade-8-(14)C) to adenine. Solutions of exogenous cytokinins applied directly to the surface of the callus ...

journal_title：Plant physiology

authors： Chatfield JM,Armstrong DJ

更新日期：1986-02-01 00:00:00

abstract：:Saponaria vaccaria (Caryophyllaceae), a soapwort, known in western Canada as cowcockle, contains bioactive oleanane-type saponins similar to those found in soapbark tree (Quillaja saponaria; Rosaceae). To improve our understanding of the biosynthesis of these saponins, a combined polymerase chain reaction and expresse...

journal_title：Plant physiology

authors： Meesapyodsuk D,Balsevich J,Reed DW,Covello PS

更新日期：2007-02-01 00:00:00

abstract：:Phytohemagglutinin, the lectin of the common bean Phaseolus vulgaris, has a high mannose and a modified (fucosylated) oligosaccharide on each polypeptide. Fractionation by high performance liquid chromatography of tryptic digests of [(3)H]fucose or [(3)H]glucosamine labeled phytohemagglutinin, followed by amino acid s...

journal_title：Plant physiology

authors： Sturm A,Chrispeels MJ

更新日期：1986-05-01 00:00:00

abstract：:Microarray data can be used to derive understanding of the relationships between the genes involved in various biological systems of an organism, given the availability of databases of gene expression measurements from the complete spectrum of experimental conditions and materials. However, there have been no reports,...

journal_title：Plant physiology

authors： Lee TH,Kim YK,Pham TT,Song SI,Kim JK,Kang KY,An G,Jung KH,Galbraith DW,Kim M,Yoon UH,Nahm BH

更新日期：2009-09-01 00:00:00

abstract：:Exudate was collected periodically from the root systems of detopped tobacco plants. Volume, cations, and (42)K or (86)Rb transfer were measured. According to measurements of K by (42)K and by the flame photometer, when concentrations of KCl and KNO(3) were lower than 10(-2)m, the K in the exudate came mostly from a p...

journal_title：Plant physiology

authors： Wallace A,Ashcroft RT,Lunt OR

更新日期：1967-02-01 00:00:00

abstract：:A peptide (molecular mass 50 kilodaltons) that is immunologically related to tobacco osmotin was detected in cells of the halophyte Atriplex nummularia. This protein was constitutively expressed in both unadapted and NaCl-adapted cells. A predominant osmotin-like peptide (molecular mass 24 kilodaltons) was also found ...

journal_title：Plant physiology

authors： Casas AM,Nelson DE,Raghothama KG,D'Urzo MP,Singh NK,Bressan RA,Hasegawa PM

更新日期：1992-05-01 00:00:00

abstract：:In C3 plants large amounts of photorespiratory glycine (Gly) are converted to serine by the tetrahydrofolate (THF)-dependent activities of the Gly decarboxylase complex (GDC) and serine hydroxymethyltransferase (SHMT). Using 13C nuclear magnetic resonance, we monitored the flux of carbon through the GDC/SHMT enzyme sy...

journal_title：Plant physiology

authors： Prabhu V,Chatson KB,Lui H,Abrams GD,King J

更新日期：1998-01-01 00:00:00

abstract：:Exposing hybrid poplar (Populus maximowizii x trichocarpa) plants to ozone (O3) resulted in an acceleration of the visual symptoms of senescence and a decrease in the activity and quantity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). Whole plants, crude leaf extracts, and isolated intact chloroplasts ...

journal_title：Plant physiology

authors： Landry LG,Pell EJ

更新日期：1993-04-01 00:00:00

abstract：:Roots of Fe-sufficient and Fe-Deficient pea (Pisum sativum L.) were studied to determine the effect of Fe-deficiency on the activity of the root-cell plasmalemma Fe(2+) transport protein. Rates of Fe(III) reduction and short-term Fe(2+) influx were sequentially determined in excised primary lateral roots using Fe(III)...

journal_title：Plant physiology

authors： Grusak MA,Welch RM,Kochian LV

更新日期：1990-11-01 00:00:00

abstract：:Intercellular distribution of enzymes involved in amino nitrogen synthesis was studied in leaves of species representing three C(4) groups, i.e. Sorghum bicolor, Zea mays, Digitaria sanguinalis (NADP malic enzyme type); Panicum miliaceum (NAD malic enzyme type); and Panicum maximum (phosphoenolpyruvate carboxykinase t...

journal_title：Plant physiology

authors： Rathnam CK,Edwards GE

更新日期：1976-06-01 00:00:00

abstract：:Synechocystis PCC 6803 contains two types of glutathione peroxidase-like proteins (GPX-1 and GPX-2) that utilize NADPH but not reduced glutathione and unsaturated fatty acid hydroperoxides or alkyl hydroperoxides. The steady-state transcript level of gpx-1 gradually increased under oxidative stress conditions imposed ...

journal_title：Plant physiology

authors： Gaber A,Yoshimura K,Tamoi M,Takeda T,Nakano Y,Shigeoka S

更新日期：2004-09-01 00:00:00

abstract：:Wild type Gracilaria tikvahiae, a macrophytic red alga, and fourteen genetically characterized pigment mutants were analyzed for their biliprotein and chlorophyll contents. The same three biliproteins, phycoerythrin, phycocyanin, and allophycocyanin, which are found in the wild type are found in all the Mendelian and ...

journal_title：Plant physiology

authors： Kursar TA,van der Meer J,Alberte RS

更新日期：1983-10-01 00:00:00

abstract：:The peribacteroid membrane (PBM) forms the structural and functional interface between the legume plant and the rhizobia. The model legume Lotus japonicus was chosen to study the proteins present at the PBM by proteome analysis. PBM was purified from root nodules by an aqueous polymer two-phase system. Extracted prote...

journal_title：Plant physiology

authors： Wienkoop S,Saalbach G

更新日期：2003-03-01 00:00:00

abstract：:Using isopycnic sucrose gradients, we have ascertained the subcellular location of several enzymes involved in the processing of the N-linked oligosaccharides of glycoproteins in developing cotyledons of the common bean, Phaseolus vulgaris. All are localized in the endoplasmic reticulum (ER) or Golgi complex as determ...

journal_title：Plant physiology

authors： Sturm A,Johnson KD,Szumilo T,Elbein AD,Chrispeels MJ

更新日期：1987-11-01 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：:Natural variation allows the investigation of both the fundamental functions of genes and their role in local adaptation. As one of the essential macronutrients, sulfur is vital for plant growth and development and also for crop yield and quality. Selenium and sulfur are assimilated by the same process, and although p...

journal_title：Plant physiology

authors： Chao DY,Baraniecka P,Danku J,Koprivova A,Lahner B,Luo H,Yakubova E,Dilkes B,Kopriva S,Salt DE

更新日期：2014-11-01 00:00:00

abstract：:The uptake of iron (Fe) by VF-36 tomato plants as influenced by root temperature and manganese (Mn) nutrition was studied. Following a 1-week pretreatment period of various levels of Fe and Mn in the nutrient solution in a controlled temperature room, the uptake of (59)Fe from ferric ethylenediamine di(O-hydroxyphenyl...

journal_title：Plant physiology

authors： Riekels JW,Lingle JC

更新日期：1966-09-01 00:00:00

abstract：:Gross O2 evolution and uptake by attached, drought-stressed leaves of wheat (Triticum aestivum) were measured using a 16O2/ 18O2 isotope technique and mass spectrometry. The activity of photosystem II, determined from the rate of 16O2 evolution, is only slightly affected under drought conditions. During drought stress...

journal_title：Plant physiology

authors： Biehler K,Fock H

更新日期：1996-09-01 00:00:00

abstract：:Two methods for preparing membrane fractions from barley (Hordeum vulgare cv California Mariout 72) roots were compared in order to resolve reported differences between the characteristics of the plasma membrane ATPase of barley and that of other species. When microsomal membranes were prepared by a published procedur...

journal_title：Plant physiology

authors： Dupont FM,Hurkman WJ

更新日期：1985-04-01 00:00:00

abstract：:The interaction of low water potential effects on photosynthesis, and leaf K(+) levels in wheat (Triticum aestivum L.) plants was studied. Plants were grown at three K(+) fertilization levels; 0.2, 2, and 6 millimolar. With well watered plants, 2 millimolar K(+) supported maximal photosynthetic rates; 0.2 millimolar K...

journal_title：Plant physiology

authors： Gupta AS,Berkowitz GA,Pier PA

更新日期：1989-04-01 00:00:00

abstract：:An enzyme activity, found for the first time in plants, mainly located in the 22,000g supernatant of the crude extract of sprout apices of Helianthus tuberosus L. cv OB1 tubers, is able in vitro to covalently bind polyamines to endogenous substrates of different molecular weights. The major assay parameters, such as p...

journal_title：Plant physiology

authors： Serafini-Fracassini D,Del Duca S,D'Orazi D

更新日期：1988-07-01 00:00:00

abstract：:The occurrence of the biopolymers lignin and suberin was investigated with hypodermal (HCW) and endodermal cell walls (ECW) and xylem vessels (XV) isolated from Clivia miniata Reg. roots. Both biopolymers were detected in HCW and ECW, whereas in XV, typical aliphatic suberin monomers were missing and only representati...

journal_title：Plant physiology

authors： Zeier J,Schreiber L

更新日期：1997-04-01 00:00:00

abstract：:To study in detail the hypersensitive reaction, one of the major defense responses of plants against microbial infection, we used a model system of reduced complexity with cultured parsley (Petroselinum crispum) cells infected with the phytopathogenic fungus Phytophthora infestans. Experimental conditions were establi...

journal_title：Plant physiology

authors： Naton B,Hahlbrock K,Schmelzer E

更新日期：1996-09-01 00:00:00

abstract：:Experiments were designed to obtain evidence about the possible role of xanthophylls as abscisic acid (ABA) precursors in water-stressed leaves of Phaseolus vularis L. Leaves were exposed to (14)CO(2) and the specific activities of several major leaf xanthophylls and stress-induced ABA were determined after a chase in...

journal_title：Plant physiology

authors： Li Y,Walton DC

更新日期：1987-12-01 00:00:00

abstract：:When tested for ornithine and arginine decarboxylases, pyrrolizidine alkaloid-bearing Senecio riddellii, S. longilobus (Compositae), and Crotalaria retusa (Leguminosae) plants exhibited only ornithine decarboxylase activity. This contrasts with previous studies of four species of pyrrolizidine alkaloid-bearing Heliotr...

journal_title：Plant physiology

authors： Birecka H,Birecki M,Cohen EJ,Bitonti AJ,McCann PP

更新日期：1988-01-01 00:00:00

abstract：:Respiration utilizing NAD-linked substrates in mitochondria isolated from cotyledons of etiolated peas (Pisum sativum L. var. Homesteader) by sucrose density gradient centrifugation exhibited resistance to rotenone. The inhibited rate of alpha-ketoglutarate oxidation was equivalent to the recovered rate of malate oxid...

journal_title：Plant physiology

authors： Johnson-Flanagan AM,Spencer MS

更新日期：1981-12-01 00:00:00

abstract：:To study the role of the plastidial alpha-glucan phosphorylase in starch metabolism in the leaves of Arabidopsis, two independent mutant lines containing T-DNA insertions within the phosphorylase gene were identified. Both insertions eliminate the activity of the plastidial alpha-glucan phosphorylase. Measurement of o...

journal_title：Plant physiology

authors： Zeeman SC,Thorneycroft D,Schupp N,Chapple A,Weck M,Dunstan H,Haldimann P,Bechtold N,Smith AM,Smith SM

更新日期：2004-06-01 00:00:00