Abstract:
:Prolonged growth of cell cultures of sycamore (Acer pseudoplatanus L.) on agar medium containing myo-inositol-2-(3)H resulted in incorporation of label predominately into uronosyl and pentosyl units of cell wall polysaccharides. Procedures normally used to distinguish between pectic substance and hemicellulose yielded carbohydrate-rich fractions with solubility characteristics ranging from pectic substance to hemicellulose yet the uronic acid and pentose composition of these fractions was decidedly pectic. Galacturonic acid was the only uronic acid present in each fraction. Subfractionation of alkali-soluble (hemicellulosic) polysaccharide by neutralization followed by ethanol precipitation gave 3 fractions, a water-insoluble, an ethanol-insoluble, and an ethanol-soluble fraction, each progressively poorer in galacturonic acid units and progressively richer in arabinose units; all relatively poor in xylose units.Apparently, processes involved in biosynthesis of primary cell wall continued to produce pectic substance during cell enlargement while processes leading to biosynthesis of typically secondary cell wall polysaccharide such as 4-0-methyl glucuronoxylan were not activated.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Roberts RM,Loewus Fdoi
10.1104/pp.41.9.1489subject
Has Abstractpub_date
1966-11-01 00:00:00pages
1489-98issue
9eissn
0032-0889issn
1532-2548journal_volume
41pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::Most chloroplast proteins are synthesized in the cytosol and imported into chloroplasts. Many imported proteins are further targeted to the thylakoid membrane and lumen by the SEC1, TAT, or SRP/ALB3 translocases. Others are targeted to the inner chloroplast envelope membrane by undescribed translocases. Recently, a se...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.17.00012
更新日期:2017-04-01 00:00:00
abstract::To examine the role of isoamylase1 (ISA1) in amylopectin biosynthesis in plants, a genomic DNA fragment from Aegilops tauschii was introduced into the ISA1-deficient rice (Oryza sativa) sugary-1 mutant line EM914, in which endosperm starch is completely replaced by phytoglycogen. A. tauschii is the D genome donor of w...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.051359
更新日期:2005-01-01 00:00:00
abstract::The time course of abscisic acid (ABA) accumulation during water stress and of degradation following rehydration was investigated by analyzing the levels of ABA and its metabolites phaseic acid (PA) and alkalihydrolyzable conjugated ABA in excised leaf blades of Xanthium strumarium. Initial purification was by reverse...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.66.4.672
更新日期:1980-10-01 00:00:00
abstract::Understanding the biochemistry of triacylglycerol (TAG) assembly is critical in tailoring seed oils to produce high-value products. Hydroxy-fatty acid (HFA) is one such valuable modified fatty acid, which can be produced at low levels in Arabidopsis (Arabidopsis thaliana) seed through transgenic expression of the cast...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.18.01409
更新日期:2019-03-01 00:00:00
abstract::Premature leaf senescence affects plant growth and yield in rice. NAD plays critical roles in cellular redox reactions and remains at a sufficient level in the cell to prevent cell death. Although numerous factors affecting leaf senescence have been identified, few involving NAD biosynthetic pathways have been describ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.15.01898
更新日期:2016-06-01 00:00:00
abstract::The rice plant (Oryza sativa L. cv Oochikara) is known to be a Si accumulator, but the mechanism responsible for the high uptake of Si by the roots is not well understood. We investigated the role of root hairs and lateral roots in the Si uptake using two mutants of rice, one defective in the formation of root hairs (...
journal_title:Plant physiology
pub_type: 杂志文章
doi:
更新日期:2001-12-01 00:00:00
abstract::The transfer of Nicotiana tabacum plants grown in low light (60 micromoles quanta per square meter per second) to higher light (360 micromoles quanta per square meter per second) was previously shown to induce adaptive stimulation of photosynthetic capacities. The variations of ribulose bisphosphate carboxylase/oxygen...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.84.4.1238
更新日期:1987-08-01 00:00:00
abstract::Lipase (triacylglycerol acylhydrolase [EC 3.1.1.3.]) was extracted from the microsomal fraction of cotyledons of dark grown seedlings of Canola (Brassica napus L. cv Westar) by treatment with Triton X-100. The enzyme was partially purified by chromatography on Sephacryl S-300 and DEAE Bio-Gel and was stable when store...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.91.4.1303
更新日期:1989-12-01 00:00:00
abstract::CDP-diglyceride:inositol transferase in endoplasmic reticulum fractions from castor bean (Ricinus communis) endosperm was partially characterized. The enzyme had a pH optimum of 8.5 and required Mn(2+) for activity. Maximal activity was at 1.5 millimolar MnCl(2). A K(m) of 0.30 mM was calculated for myo-inositol and 1...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.62.6.978
更新日期:1978-12-01 00:00:00
abstract::Selenium (Se) plays an indispensable role in human nutrition and has been implicated to have important health benefits, including being a cancer preventative agent. While different forms of Se vary in their anticarcinogenic efficacy, Se-methylselenocysteine (SeMSC) has been demonstrated to be one of the most effective...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.056549
更新日期:2005-05-01 00:00:00
abstract::Peroxisomes are single membrane-delimited subcellular organelles that carry out numerous vital metabolic reactions in nearly all eukaryotes. Peroxisomes alter their morphology, abundance, and enzymatic constituents in response to environmental cues, yet little is known about the underlying mechanisms. In this work, we...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.107.113555
更新日期:2008-03-01 00:00:00
abstract::Upon illumination of dark-grown maize seedlings (5 days old) with incandescent light, there occurred a nearly simultaneous increase, after a certain lag period, in the activities of enzymes engaged in the C(4) pathway and the Calvin-Benson cycle. The light-induced biosynthesis of chlorophyll (a and b) precedes the inc...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.65.2.198
更新日期:1980-02-01 00:00:00
abstract::To define the functions of genes previously identified by expression profiling as being rapidly light induced under phytochrome (phy) control, we are investigating the seedling de-etiolation phenotypes of mutants carrying T-DNA insertional disruptions at these loci. Mutants at one such locus displayed reduced responsi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.030007
更新日期:2003-12-01 00:00:00
abstract::Photosystem I electron transport activity has been found to be considerably higher in a decaploid tall fescue (Festuca arundinacea Schreb.) genotype as compared to a common hexaploid genotype. The decaploid genotype also displayed a higher photosystem whole chain (Photosystem II plus Photosystem I uncoupled) activity,...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.68.5.1110
更新日期:1981-11-01 00:00:00
abstract::We have used (13)C-labeled sugars and nuclear magnetic resonance (NMR) spectrometry to study the metabolic pathway of starch biosynthesis in developing wheat grain (Triticum aestivum cv Mardler). Our aim was to examine the extent of redistribution of (13)C between carbons atoms 1 and 6 of [1-(13)C] or [6-(13)C]glucose...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.87.2.311
更新日期:1988-06-01 00:00:00
abstract::Radioactive gibberellin A(5) ((3)H-GA(5)) was synthesized from gibberellic acid. When it was applied to dwarf peas grown in the dark, an average of 3% was converted to another acid gibberellin within 48 hours. The biological activity of the metabolite did not account for the response to applied GA(5). GA(5) is therefo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.45.1.56
更新日期:1970-01-01 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
pub_type: 杂志文章
doi:10.1104/pp.15.01240
更新日期:2015-10-01 00:00:00
abstract::The eukaryotic genome is duplicated exactly once per cell division cycle. A strategy that limits every replication origin to a single initiation event is tightly regulated by a multiprotein complex, which involves at least 20 protein factors. A key player in this regulation is the evolutionary conserved hexameric MCM2...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.105.074294
更新日期:2006-02-01 00:00:00
abstract::When air-dry urediospores of the wheat stem rust, Puccinia graminis f. sp. tritici, are exposed to temperatures below freezing, their germinability is markedly reduced, even after prolonged thawing at room temperature. Germinability is fully restored by a brief heat-shock or by vapor phase hydration. We have found tha...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.47.2.289
更新日期:1971-02-01 00:00:00
abstract::The Bamboo mosaic virus (BaMV) is a positive-sense, single-stranded RNA virus. Previously, we identified that the chloroplast phosphoglycerate kinase (chl-PGK) from Nicotiana benthamiana is one of the viral RNA binding proteins involved in the BaMV infection cycle. Because chl-PGK is transported to the chloroplast, we...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.113.229666
更新日期:2013-12-01 00:00:00
abstract::The vacuoles of lower epidermal strips from Vicia faba exhibit an intrinsic green fluorescence when incubated in alkaline buffers. Using an alkaline-induced absorbance change as a spectrophotometric assay, the major pigment responsible for this fluorescence was isolated and identified as the flavonoid: kaempferol 3-O-...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.69.2.522
更新日期:1982-02-01 00:00:00
abstract::Through a biochemical and a genetic approach, we have identified several plant genes encoding methylthioribose (MTR) kinase, an enzyme involved in recycling of methionine through the methylthioadenosine (MTA) cycle. OsMTK1, an MTR kinase from rice (Oryza sativa), is 48.6 kD in size and shows cooperative kinetics with ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.053587
更新日期:2004-12-01 00:00:00
abstract::The dark respiration rate of discs from fully expanded tobacco leaves (Nicotiana tabacum) increased linearly with decreasing diameter, the relative increase being independent of leaf age. The wound respiration responsible for this situation reached a plateau within 15 minutes of excision. Metabolite analysis gave evid...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.57.1.80
更新日期:1976-01-01 00:00:00
abstract::Light-dependent formation of ribulose-1,5 diphosphate is completely inhibited by low concentrations of 3-(3,4-dichlorophenyl)-1,1-dimethylurea which do not severely affect cyclic photophosphorylation. Also in Scenedesmus mutant number 11, capable of cyclic photophosphorylation, cellular ribulose-1,5 diphosphate-levels...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.49.6.904
更新日期:1972-06-01 00:00:00
abstract::The circadian RNA-binding protein CHLAMY1 from the green alga Chlamydomonas reinhardtii consists of two subunits named C1 and C3. Changes in the C1 level cause arrhythmicity of the phototaxis rhythm, while alterations in the level of C3 lead to acrophase shifts. Thus, CHLAMY1 is involved in maintaining period and phas...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.118570
更新日期:2008-08-01 00:00:00
abstract::Large changes in indole-3-acetic acid (IAA) levels occur during growth of Lemna gibba G-3 in sterile culture. The levels of IAA were measured in plants during a 45 day growth cycle using HPLC and isotope dilution analysis followed by selected ion current monitoring GC-MS analysis with (13)C(6)-IAA as the internal stan...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.86.2.522
更新日期:1988-02-01 00:00:00
abstract::Stimulation of stem elongation on green cuttings of Phaseolus aureus by malformin occurred only in red light and was specifically reversible by subsequent treatment with far red radiation. Inhibition of stem elongation of etiolated cuttings by malformin in the dark was alleviated by red light and was repeatedly revers...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.60.4.622
更新日期:1977-10-01 00:00:00
abstract::Root and stem segments from soybean (Merrill cv. ;Bragg') showed an enhanced chemiluminescence upon mechanical injury. Roots emitted more light than did stems. Light emission was diminished by CN(-) and N(3) (-) but was not affected by rotenone and antimycin A. Catalase quenched chemiluminescence in wounded root segme...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.67.1.43
更新日期:1981-01-01 00:00:00
abstract::Nep1 is an extracellular fungal protein that causes necrosis when applied to many dicotyledonous plants, including invasive weed species. Using transmission electron microscopy, it was determined that application of Nep1 (1.0 micro g mL(-)(1), 0.1% [v/v] Silwet-L77) to Arabidopsis and two invasive weed species, spotte...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.102.019836
更新日期:2003-07-01 00:00:00
abstract::Various sterols and related steroids were tested for their ability to influence ethanol-induced electrolyte leakage from Hordeum vulgare roots. Cholesterol had the greatest influence and, depending on concentration, it stimulated or inhibited the loss of electrolyte. Cholesterol, however, was ineffective if the roots ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.54.4.624
更新日期:1974-10-01 00:00:00