Alternative Oxidase Activity in Tobacco Leaf Mitochondria (Dependence on Tricarboxylic Acid Cycle-Mediated Redox Regulation and Pyruvate Activation).

abstract：:Polysaccharide analyses of mutants link several of the glycosyltransferases encoded by the 10 CesA genes of Arabidopsis to cellulose synthesis. Features of those mutant phenotypes point to particular genes depositing cellulose predominantly in either primary or secondary walls. We used transformation with antisense co...

journal_title：Plant physiology

authors： Burn JE,Hocart CH,Birch RJ,Cork AC,Williamson RE

更新日期：2002-06-01 00:00:00

abstract：:Distinct organellar forms of the beta-oxidation enzyme enoyl-coenzyme A (CoA) hydratase were partially purified and characterized from 2-day germinated pea (Pisum sativum L.) seedlings. The purification was accomplished by disruption of purified mitochondria or peroxisomes, (NH(4))(2)SO(4) fractionation, and gel perme...

journal_title：Plant physiology

authors： Miernyk JA,Thomas DR,Wood C

更新日期：1991-02-01 00:00:00

abstract：:From a study of the effects of Ca ions on the nodulation of subterranean clover in flowing culture solutions it is concluded that root infection or nodule initiation has a higher Ca requirement than either nodule development or host plant growth in the presence of fixed nitrogen.Increasing Ca concentration from 246 to...

journal_title：Plant physiology

authors： Lowther WL,Loneragan JF

更新日期：1968-09-01 00:00:00

abstract：:Enolase (2-phospho-D-glycerate hydrolase, EC 4.2.1.11) has been identified as an anaerobic stress protein in Echinochloa oryzoides based on the homology of its internal amino acid sequence with those of enolases from other organisms, by immunological reactivity, and induction of catalytic activity during anaerobic str...

journal_title：Plant physiology

authors： Fox TC,Mujer CV,Andrews DL,Williams AS,Cobb BG,Kennedy RA,Rumpho ME

更新日期：1995-10-01 00:00:00

abstract：:The breakdown of sucrose to feed both hexoses into glycolytic carbon flow can occur by the sucrose synthase pathway. This uridine diphosphate (UDP) and pyrophosphate (PPi)-dependent pathway was biochemically characterized using soluble extracts from several plants. The sucrolysis process required the simultaneous pres...

journal_title：Plant physiology

authors： Xu DP,Sung SJ,Loboda T,Kormanik PP,Black CC

更新日期：1989-06-01 00:00:00

abstract：:DEAD-box RNA helicases (DBRHs) modulate RNA secondary structure, allowing RNA molecules to adopt the conformations required for interaction with their target proteins. RH50 is a chloroplast-located DBRH that colocalizes and is coexpressed with GUN1, a central factor in chloroplast-to-nucleus signaling. When combined w...

journal_title：Plant physiology

authors： Paieri F,Tadini L,Manavski N,Kleine T,Ferrari R,Morandini P,Pesaresi P,Meurer J,Leister D

更新日期：2018-01-01 00:00:00

abstract：:The effect of various periods of pretreatment in CaSO(4) solutions (aging) on the absorption of Na and K by bean stem slices was investigated. Freshly sliced tissue absorbed Na over the entire range of concentrations studied (0.02-50 mm). Potassium absorption by fresh tissue was nil at concentrations below 0.5 mm but ...

journal_title：Plant physiology

authors： Rains DW

更新日期：1969-04-01 00:00:00

abstract：:In red clover (Trifolium pratense) leaves, phaselic acid (2-O-caffeoyl-L-malate) accumulates to several mmol kg(-1) fresh weight and is a crucial component of a natural system that prevents protein breakdown during harvest and storage of this forage crop. Previously, we identified HCT2, a red clover gene encoding a hy...

journal_title：Plant physiology

authors： Sullivan ML,Zarnowski R

更新日期：2011-03-01 00:00:00

abstract：:When water uptake by growing cells is prevented, the turgor pressure and the tensile stress in the cell wall are reduced by continued wall loosening. This process, termed in vivo stress relaxation, provides a new way to study the dynamics of wall loosening and to measure the wall yield threshold and the physiological...

journal_title：Plant physiology

authors： Cosgrove DJ

更新日期：1987-01-01 00:00:00

abstract：:Using tissue blotting and immunocytolocalization, we have investigated the appearance and accumulation of polygalacturonase (PG) during tomato (Lycopersicon esculentum Mill.) fruit ripening. Results show that PG first appears in the collumella region followed by sequential appearance in the exopericarp and endopericar...

journal_title：Plant physiology

authors： Tieman DM,Handa AK

更新日期：1989-05-01 00:00:00

abstract：:Magnesium-28 was applied to specific leaves of bean (Phaseolus vulgaris) and barley (Hordeum vulgare) plants. After 24 hours, as much as 7% of the absorbed Mg was exported from the treated bean leaves and 11% was transported basipetally from the treated zone of the barley leaves. Transport of Mg did not occur past a h...

journal_title：Plant physiology

authors： Steucek GL,Koontz HV

更新日期：1970-07-01 00:00:00

abstract：:To gain some insight into the mechanism of plant programmed cell death, certain features of cytochrome c (cyt c) release were investigated in heat-shocked tobacco (Nicotiana tabacum) Bright-Yellow 2 cells in the 2- to 6-h time range. We found that 2 h after heat shock, cyt c is released from intact mitochondria into t...

journal_title：Plant physiology

authors： Vacca RA,Valenti D,Bobba A,Merafina RS,Passarella S,Marra E

更新日期：2006-05-01 00:00:00

abstract：:Biosynthesis of the polyamines putrescine, spermidine, and spermine is induced in response to pathogen infection of plants. Putrescine, which is produced from Arg, serves as a metabolic precursor for longer polyamines, including spermidine and spermine. Polyamine acetylation, which has important regulatory functions i...

journal_title：Plant physiology

authors： Lou YR,Bor M,Yan J,Preuss AS,Jander G

更新日期：2016-06-01 00:00:00

abstract：:Ion and oxygen uptake were studied on aging bean stem slices. Oxygen uptake was high immediately after slicing, decreased to a minimum at 100 minutes, and then increased again. Ion uptake per unit of O(2) uptake data suggested that metabolic energy was utilized almost exclusively for sodium transport in fresh tissue b...

journal_title：Plant physiology

authors： Floyd RA,Rains DW

更新日期：1971-05-01 00:00:00

abstract：:A chimeric gene containing the patatin promoter and the transit-peptide region of the small-subunit carboxylase gene was utilized to direct expression of Escherichia coli glycogen synthase (glgA) to potato (Solanum tuberosum) tuber amyloplasts. Expression of the glgA gene product in tuber amyloplasts was between 0.007...

journal_title：Plant physiology

authors： Shewmaker CK,Boyer CD,Wiesenborn DP,Thompson DB,Boersig MR,Oakes JV,Stalker DM

更新日期：1994-04-01 00:00:00

abstract：:We have isolated a starch mutant that was deficient in starch-branching enzyme I (BEI) from the endosperm mutant stocks of rice (Oryza sativa) induced by the treatment of fertilized egg cells with N-methyl-N-nitrosourea. The deficiency of BEI in this mutant was controlled by a single recessive gene, tentatively design...

journal_title：Plant physiology

authors： Satoh H,Nishi A,Yamashita K,Takemoto Y,Tanaka Y,Hosaka Y,Sakurai A,Fujita N,Nakamura Y

更新日期：2003-11-01 00:00:00

abstract：:In many plant species, a subset of the genes of the chloroplast genome is transcribed by RpoTp, a nuclear-encoded plastid-targeted RNA polymerase. Here, we describe the positional cloning of the SCABRA3 (SCA3) gene, which was found to encode RpoTp in Arabidopsis (Arabidopsis thaliana). We studied one weak (sca3-1) and...

journal_title：Plant physiology

authors： Hricová A,Quesada V,Micol JL

更新日期：2006-07-01 00:00:00

abstract：:Potassium citrate (10 mM, pH 6) inhibits the growth of cultured (Glycine max L.) cells when urea is the sole nitrogen source. Ureadependent citrate toxicity is overcome by three separate additions to the growth medium: (a) NH(4)Cl (20 mM); (b) high levels of MgCl(2) (10 mM) or CaCl(2) (5-10 mM); (c) low levels of NiSO...

journal_title：Plant physiology

authors： Polacco JC

更新日期：1977-05-01 00:00:00

abstract：:The profile of endogenous cytokinins in a genetic tumor line of tobacco, namely, Nicotiana glauca (Grah.) x Nicotiana langsdorffii (Weinm.), following 1 to 10 weeks of growth on solid medium was determined by radioimmunoassay. (3)H-labeled cytokinins of high specific activity were added during tissue extraction to cor...

journal_title：Plant physiology

authors： Nandi SK,Palni LM,Parker CW

更新日期：1990-11-01 00:00:00

abstract：:Nitrogen is an essential macronutrient required for plant growth and development. A number of genes respond to nitrogen starvation conditions. However, the functions of most of these nitrogen starvation-responsive genes are unclear. Our recent survey suggested that many microRNAs (miRNAs) are responsive to nitrogen st...

journal_title：Plant physiology

authors： He H,Liang G,Li Y,Wang F,Yu D

更新日期：2014-02-01 00:00:00

abstract：:A survey of leaf soluble amino acids was conducted for four subtropical seagrasses grown at several salinities. Proline functioned as an organic osmoticum in Halodule wrightii Aschers., Thallasia testudinum Banks ex Koenig, and Ruppia maritima L., while alanine functioned in an osmoregulatory capacity in Halophila eng...

journal_title：Plant physiology

authors： Pulich WM

更新日期：1986-01-01 00:00:00

abstract：:With rising food demands, crop production on salinized lands is increasingly necessary. Sunflower (Helianthus annuus), a moderately salt-tolerant crop, exhibits a tradeoff where more vigorous, high-performing genotypes have a greater proportional decline in biomass under salinity stress. Prior research has found devia...

journal_title：Plant physiology

authors： Temme AA,Kerr KL,Masalia RR,Burke JM,Donovan LA

更新日期：2020-10-01 00:00:00

abstract：:We previously cloned and sequenced a cDNA encoding soybean ferric leghemoglobin reductase (FLbR), an enzyme postulated to play an important role in maintaining leghemoglobin in a functional ferrous state in nitrogen-fixing root nodules. This cDNA was sub-cloned into an expression plasmid, pTrcHis C, and overexpressed ...

journal_title：Plant physiology

authors： Ji L,Becana M,Sarath G,Shearman L,Klucas RV

更新日期：1994-09-01 00:00:00

abstract：:Plant architecture is optimized for the local light environment. In response to foliar shade or neighbor proximity (low red to far-red light), some plant species exhibit shade-avoiding phenotypes, including increased stem and hypocotyl growth, which increases the likelihood of outgrowing competitor plants. If shade pe...

journal_title：Plant physiology

authors： Procko C,Crenshaw CM,Ljung K,Noel JP,Chory J

更新日期：2014-07-01 00:00:00

abstract：:Transcriptome resources for the medicinal plant Glaucium flavum were searched for orthologs showing identity with characterized O-methyltransferases (OMTs) involved in benzylisoquinoline alkaloid biosynthesis. Seven recombinant proteins were functionally tested using the signature alkaloid substrates for six OMTs: nor...

journal_title：Plant physiology

authors： Chang L,Hagel JM,Facchini PJ

更新日期：2015-10-01 00:00:00

abstract：:The analysis of substituent constants for the lipophilic and electronic factors in the auxin activity of substituted phenylacetic acids in elongation of coleoptile segments shows that these factors parallel those for the phenoxyacetic acids but assign reactivity in growth promotion to the meta position of phenylacetic...

journal_title：Plant physiology

authors： Muir RM,Fujita T,Hansch C

更新日期：1967-11-01 00:00:00

abstract：:Root iron mobilization genes are induced by iron deficiency downstream of an unknown signaling mechanism. The FER gene, encoding a basic helix-loop-helix domain protein and putative transcription factor, is required for induction of iron mobilization genes in roots of tomato (Lycopersicon esculentum). To study upstrea...

journal_title：Plant physiology

authors： Brumbarova T,Bauer P

更新日期：2005-03-01 00:00:00

abstract：:Heat treatment (37 degrees C) of transgenic tobacco (Nicotiana tabacum) plants led to a reversible reduction or complete loss of transgene-encoded activities in about 40% of 10 independent transformants carrying the luciferase-coding region fused to the 355 cauliflower mosaic virus or the soybean small subunit promote...

journal_title：Plant physiology

authors： Neumann K,Dröge-Laser W,Köhne S,Broer I

更新日期：1997-11-01 00:00:00

abstract：:As a response to insect attack, maize (Zea mays) has inducible defenses that involve large changes in gene expression and metabolism. Piercing/sucking insects such as corn leaf aphid (Rhopalosiphum maidis) cause direct damage by acquiring phloem nutrients as well as indirect damage through the transmission of plant vi...

journal_title：Plant physiology

authors： Tzin V,Fernandez-Pozo N,Richter A,Schmelz EA,Schoettner M,Schäfer M,Ahern KR,Meihls LN,Kaur H,Huffaker A,Mori N,Degenhardt J,Mueller LA,Jander G

更新日期：2015-11-01 00:00:00

abstract：:Pyridine nucleotide pools were measured in intact plastids from roots of barley (Hordeum vulgare L.) during the onset of NO2- assimilation and compared with the in vitro effect of the NADPH/NADP ratio on the activity of plastidic glucose-6-phosphate dehydrogenase (G6PDH, EC 1.1.1.49) from N-sufficient or N-starved roo...

journal_title：Plant physiology

authors： Wright DP,Huppe HC,Turpin DH

更新日期：1997-08-01 00:00:00