Site of action of inhibitors of carbon dioxide assimilation by whole lettuce chloroplasts.

abstract：:The esterification of methylecgonine (2-carbomethoxy-3β-tropine) with benzoic acid is the final step in the biosynthetic pathway leading to the production of cocaine in Erythoxylum coca. Here we report the identification of a member of the BAHD family of plant acyltransferases as cocaine synthase. The enzyme is capabl...

journal_title：Plant physiology

authors： Schmidt GW,Jirschitzka J,Porta T,Reichelt M,Luck K,Torre JC,Dolke F,Varesio E,Hopfgartner G,Gershenzon J,D'Auria JC

更新日期：2015-01-01 00:00:00

abstract：:Through a single genetic transformation in onion (Allium cepa), a crop recalcitrant to genetic transformation, we suppressed the lachrymatory factor synthase gene using RNA interference silencing in six plants. This reduced lachrymatory synthase activity by up to 1,544-fold, so that when wounded the onions produced si...

journal_title：Plant physiology

authors： Eady CC,Kamoi T,Kato M,Porter NG,Davis S,Shaw M,Kamoi A,Imai S

更新日期：2008-08-01 00:00:00

abstract：:Gametophore-over-producing mutants of the moss, Physcomitrella patens, when grown in liquid culture export high levels of cytokinin into their culture medium. The cytokinin produced by these mutants is postulated to account for their peculiar phenotype, that of mosses treated with exogenous cytokinin. N(6)-(Delta(2)-i...

journal_title：Plant physiology

authors： Wang TL,Horgan R,Cove D

更新日期：1981-09-01 00:00:00

abstract：:Synechocystis (PCC 6714) is photoinhibited at low photon flux density when illuminated in medium devoid of Na(+). Photosynthetic activity and variable fluorescence yield were measured in intact cells during the course of inhibition and during recovery from inhibition in order to characterize sequential inhibitory even...

journal_title：Plant physiology

authors： Zhao J,Brand JJ

更新日期：1989-09-01 00:00:00

abstract：:We have analyzed gene regulation of the Lhc supergene family in poplar (Populus spp.) and Arabidopsis (Arabidopsis thaliana) using digital expression profiling. Multivariate analysis of the tissue-specific, environmental, and developmental Lhc expression patterns in Arabidopsis and poplar was employed to characterize ...

journal_title：Plant physiology

authors： Klimmek F,Sjödin A,Noutsos C,Leister D,Jansson S

更新日期：2006-03-01 00:00:00

abstract：:The pattern of endoproteolytic activities occurring during wheat (Triticum aestivum, cultivar Chinese Spring) grain development was investigated. Total endoprotease activity, assayed in solution with azocasein as a substrate, increased during the early stages of grain development to reach a maximum at 15 d postanthesi...

journal_title：Plant physiology

authors： Dominguez F,Cejudo FJ

更新日期：1996-11-01 00:00:00

abstract：:Young plants of five Nicotiana tabacum L. genotypes were examined for activity of nicotine biosynthetic enzymes. Genotypes near isogenic except at two loci each with two alleles controlling nicotine level were used in a comparison of the four homozygous allelic combinations producing high, high intermediate, low inter...

journal_title：Plant physiology

authors： Saunders JW,Bush LP

更新日期：1979-08-01 00:00:00

abstract：:Visible absorption spectra are presented for the Azolla caroliniana Willd.-Anabaena azollae Strass. association and the individual partners. Although absorption by the phycobiliproteins of the endophytic cyanobacterium clearly complements the absorption by the fern pigments, their contribution to the absorption spectr...

journal_title：Plant physiology

authors： Tyagi VV,Ray TB,Mayne BC,Peters GA

更新日期：1981-12-01 00:00:00

abstract：:In higher plants, three subfamilies of sucrose nonfermenting-1 (Snf1)-related protein kinases have evolved. While the Snf1-related protein kinase 1 (SnRK1) subfamily has been shown to share pivotal roles with the orthologous yeast Snf1 and mammalian AMP-activated protein kinase in modulating energy and metabolic homeo...

journal_title：Plant physiology

authors： Zheng Z,Xu X,Crosley RA,Greenwalt SA,Sun Y,Blakeslee B,Wang L,Ni W,Sopko MS,Yao C,Yau K,Burton S,Zhuang M,McCaskill DG,Gachotte D,Thompson M,Greene TW

更新日期：2010-05-01 00:00:00

abstract：:Enzyme assays on organelles isolated from the endosperm of germinating castor bean (Ricinus communis) by sucrose density gradient centrifugation showed that fatty acid synthesis from [(14)C]malonyl-CoA was localized exclusively in the plastids. The optimum pH was 7.7 and the products was mainly free palmitic and oleic...

journal_title：Plant physiology

authors： Vick B,Beevers H

更新日期：1978-08-01 00:00:00

abstract：:Cyanobacteria have efficient carbon concentration mechanisms and suppress photorespiration in response to inorganic carbon (Ci) limitation. We studied intracellular Ci limitation in the slow-growing CO2/HCO3 (-)-uptake mutant ΔndhD3 (for NADH dehydrogenase subunit D3)/ndhD4 (for NADH dehydrogenase subunit D4)/cmpA (fo...

journal_title：Plant physiology

authors： Orf I,Klähn S,Schwarz D,Frank M,Hess WR,Hagemann M,Kopka J

更新日期：2015-11-01 00:00:00

abstract：:Plants are able to integrate exogenous 1-deoxy-D-xylulose (DX) into the 2C-methyl-D-erythritol 4-phosphate pathway, implicated in the biosynthesis of plastidial isoprenoids. Thus, the carbohydrate needs to be phosphorylated into 1-deoxy-D-xylulose 5-phosphate and translocated into plastids, or vice versa. An enzyme ca...

journal_title：Plant physiology

authors： Hemmerlin A,Tritsch D,Hartmann M,Pacaud K,Hoeffler JF,van Dorsselaer A,Rohmer M,Bach TJ

更新日期：2006-10-01 00:00:00

abstract：:We present four examples of attenuation of the transformed phenotype caused by the root-inducing, left-hand, transferred DNA from Agrobacterium rhizogenes in tobacco (Nicotiana tabacum). The first was associated with a genetic variable (homozygosity for the T-DNA), and the second was induced at the physiological level...

journal_title：Plant physiology

authors： Martin-Tanguy J,Sun LY,Burtin D,Vernoy R,Rossin N,Tepfer D

更新日期：1996-05-01 00:00:00

abstract：:The BEL1-like family of transcription factors is ubiquitous in plants and plays important roles in regulating development. They function in tandem with KNOTTED1 types to bind to a double TTGAC motif in the upstream sequence of target genes. StBEL5 of potato (Solanum tuberosum) functions as a mobile RNA signal that is ...

journal_title：Plant physiology

authors： Sharma P,Lin T,Hannapel DJ

更新日期：2016-01-01 00:00:00

abstract：:Previous experiments using in situ RNA hybridization have shown that the mRNAs encoding phenylalanine ammonia-lyase, 4-coumarate:coenzyme A ligase, and pathogenesis-related protein 1 accumulated transiently around fungal infection sites in parsley (Petroselinum crispum) leaf buds. These studies have now been extended ...

journal_title：Plant physiology

authors： Reinold S,Hahlbrock K

更新日期：1996-09-01 00:00:00

abstract：:procera (pro) is a tall tomato (Solanum lycopersicum) mutant carrying a point mutation in the GRAS region of the gene encoding SlDELLA, a repressor in the gibberellin (GA) signaling pathway. Consistent with the SlDELLA loss of function, pro plants display a GA-constitutive response phenotype, mimicking wild-type plant...

journal_title：Plant physiology

authors： Carrera E,Ruiz-Rivero O,Peres LE,Atares A,Garcia-Martinez JL

更新日期：2012-11-01 00:00:00

abstract：:Ethylene production from tomato (Lycopersicum esculentum L. cv. Rutgers) plants based on a clinostat doubled during the first 2 hours of rotation. Carbon dioxide blocked the appearance of leaf epinasty normally associated with plants rotated on a clinostat. These results support the idea that epinasty of clinostated p...

journal_title：Plant physiology

authors： Leather GR,Forrence LE

更新日期：1972-02-01 00:00:00

abstract：:In climates that experience short growing seasons due to drought, heat, or end-of-season frost, early flowering is a highly desirable trait for chickpea (Cicer arietinum). In this study, we mapped, sequenced, and characterized Early flowering3 (Efl3), an ortholog of Arabidopsis (Arabidopsis thaliana) EARLY FLOWERING3 ...

journal_title：Plant physiology

authors： Ridge S,Deokar A,Lee R,Daba K,Macknight RC,Weller JL,Tar'an B

更新日期：2017-10-01 00:00:00

abstract：:Silene vulgaris (Moench) Garcke has evolved populations with extremely high levels of copper tolerance. To evaluate the role of metallothioneins (MTs) in copper tolerance in S. vulgaris, we screened a cDNA library derived from a highly copper-tolerant population using Arabidopsis-based MT probes and identified an MT2b...

journal_title：Plant physiology

authors： van Hoof NA,Hassinen VH,Hakvoort HW,Ballintijn KF,Schat H,Verkleij JA,Ernst WH,Karenlampi SO,Tervahauta AI

更新日期：2001-08-01 00:00:00

abstract：:The photometric method was used to test a possibility proposed recently that a new photoreceptor with maximum activity at 620 nm is involved in mediating chloroplast rotation in Mougeotia (Z Lechowski, J Bialczyk [1988] Plant Physiol 88: 189-193). The hypothesis was tested under conditions of continuous dichromatic un...

journal_title：Plant physiology

authors： Walczak T,Gabrỳs H,Appenroth KJ

更新日期：1990-09-01 00:00:00

abstract：:The metabolism of d- and l-methionine by immature cotyledons of soybean (Glycine max, L. cv Elf) grown in culture has been investigated using solid-state (13)C and (15)N nuclear magnetic resonance. d-Methionine is taken up by the cotyledons and converted to an amide, most likely by N-malonylation. About 16% of the l-m...

journal_title：Plant physiology

authors： Coker GT,Garbow JR,Schaefer J

更新日期：1987-03-01 00:00:00

abstract：:Spinach (Spinacia oleracea CV Bloomsdale Long Standing) leaf cytoplasmic starch phosphorylase and rabbit muscle phosphorylase a were inactivated by incubation with partially purified leaf extract in the presence of ATP and Mg(2+). The inactivating factor(s) were heat stable and susceptible to protease attack. Phosphor...

journal_title：Plant physiology

authors： Hammond JB,Preiss J

更新日期：1983-12-01 00:00:00

abstract：:Cucumber (Cucumis sativus L., cv Poinsette) plants were sprayed with 20 millimolar 5-aminolevulinic acid and then incubated in the dark for 14 hours. The intact chloroplasts were isolated from the above plants in the dark and were exposed to weak light (250 micromoles per square meter per second). Within 30 minutes, p...

journal_title：Plant physiology

authors： Chakraborty N,Tripathy BC

更新日期：1992-01-01 00:00:00

abstract：:A nonphotosynthetic phosphoenolpyruvate carboxylase (EC 4.1.1.31) was partially purified from the cytosol of root nodules of alfalfa. The enzyme was purified 86-fold by ammonium sulfate fractionation, DEAE-cellulose, hydroxylapatite chromatography, and reactive agarose with a final yield of 32%. The enzyme exhibited a...

journal_title：Plant physiology

authors： Vance CP,Stade S

更新日期：1984-05-01 00:00:00

abstract：:Long-term aging of potato (Solanum tuberosum) seed-tubers resulted in a loss of patatin (40 kD) and a cysteine-proteinase inhibitor, potato multicystatin (PMC), as well as an increase in the activities of 84-, 95-, and 125-kD proteinases. Highly active, additional proteinases (75, 90, and 100 kD) appeared in the oldes...

journal_title：Plant physiology

authors： Kumar GN,Houtz RL,Knowles NR

更新日期：1999-01-01 00:00:00

abstract：:To study the effect of O(2) on the photosynthetic and glycolate pathways, maize leaves were exposed to (14)CO(2) during steady-state photosynthesis in 21 or 1% O(2). At the two O(2) concentrations after a (14)CO(2) pulse (4 seconds) followed by a (12)CO(2) chase, there was a slight difference in CO(2) uptake and in th...

journal_title：Plant physiology

authors： Morot-Gaudry JF

更新日期：1980-12-01 00:00:00

abstract：:Methionine (Met) S-methyltransferase (MMT) catalyzes the synthesis of S-methyl-Met (SMM) from Met and S-adenosyl-Met (Ado-Met). SMM can be reconverted to Met by donating a methyl group to homocysteine (homo-Cys), and concurrent operation of this reaction and that mediated by MMT sets up the SMM cycle. SMM has been hyp...

journal_title：Plant physiology

authors： Kocsis MG,Ranocha P,Gage DA,Simon ES,Rhodes D,Peel GJ,Mellema S,Saito K,Awazuhara M,Li C,Meeley RB,Tarczynski MC,Wagner C,Hanson AD

更新日期：2003-04-01 00:00:00

abstract：:Gibberellins (GAs) are involved in regulation of many aspects during plant development. To investigate the impact of altered GA levels on plant growth and metabolism, transgenic tobacco (Nicotiana tabacum) plants have been engineered to express either a GA20-oxidase (AtGA20-ox) or a GA2-oxidase (AtGA2-ox) gene from Ar...

journal_title：Plant physiology

authors： Biemelt S,Tschiersch H,Sonnewald U

更新日期：2004-05-01 00:00:00

abstract：:The response of the membrane potential to HCO(3) (-) supply has been studied in the cyanobacterium Anabaena variabilis strain M-3 under various conditions. Changes in potential were followed with the aid of the lipophilic cation tetraphenyl phosphonium bromide.Addition of HCO(3) (-) to CO(2)-depleted cells resulted in...

journal_title：Plant physiology

authors： Kaplan A,Zenvirth D,Reinhold L,Berry JA

更新日期：1982-04-01 00:00:00

abstract：:Salinity-induced alterations in tomato (Lypersicon esculentum Mill. cv Heinz 1350) root plasma membrane properties were studied and characterized using a membrane vesicle system. Equivalent rates of MgATP-dependent H(+)-transport activity were measured by quinacrine fluorescence (DeltapH) in plasma membrane vesicles i...

journal_title：Plant physiology

authors： Suhayda CG,Giannini JL,Briskin DP,Shannon MC

更新日期：1990-06-01 00:00:00