Abstract:
:The purification and characterization of a pectic polymer, rhamnogalacturonan I, present in the primary cell walls of dicots is described. Rhamnogalacturonan I accounts for approximately 7% of the mass of the walls isolated from suspension-cultured sycamore cells. As purified, rhamnogalacturonan I has a molecular weight of approximately 200,000 and is composed primarily of l-rhamnosyl, d-galacturonosyl, l-arabinosyl, and d-galactosyl residues. The backbone of rhamnogalacturonan I is thought to be composed predominantly of d-galacturonosyl and l-rhamnosyl residues in a ratio of approximately 2:1. About half of the l-rhamnosyl residues are 2-linked and are glycosidically attached to C(4) of a d-galacturonosyl residue. The other half of the l-rhamnosyl residues are 2,4-linked and have a d-galacturonosyl residue glycosidically attached at C(2). Sidechains averaging 6 residues in length are attached to C(4) of the l-rhamnosyl residues. There are many different sidechains, containing variously linked l-arabinosyl, and/or d-galactosyl residues.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
McNeil M,Darvill AG,Albersheim Pdoi
10.1104/pp.66.6.1128subject
Has Abstractpub_date
1980-12-01 00:00:00pages
1128-34issue
6eissn
0032-0889issn
1532-2548journal_volume
66pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::Interactions between putrescine and membrane function were examined with the use of a recently developed microelectrode system that enables us simultaneously to quantify membrane potentials and net K(+) fluxes associated with individual cells at the root surface of an intact corn (Zea mays L.) seedling. In contrast to...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.90.3.988
更新日期:1989-07-01 00:00:00
abstract::A method to fractionate corn (Zea mays L. B73) mitochondria into soluble proteins, high molecular weight soluble proteins, and membrane proteins was developed. These fractions were analyzed by both sodium dodecyl sulfate-polyacrylamide gel electrophoresis and assays of mitochondrial enzyme activities. The Krebs cycle ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.97.4.1381
更新日期:1991-12-01 00:00:00
abstract::AGL15 (AGAMOUS-like 15), a member of the MADS-domain family of regulatory factors, accumulates preferentially in the organs and tissues derived from double fertilization in flowering plants (i.e. the embryo, suspensor, and endosperm). The developmental role of AGL15 is still undefined. If it is involved in embryogenes...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.120.1.121
更新日期:1999-05-01 00:00:00
abstract::We have proposed that the lateral inequality of auxin associated with the phototropic response is a consequence of a light-induced impairment of basipolar transport of the hormone. If this is so, the dose-response curve for photoinhibition of auxin transport should resemble that for phototropism. Further, the waveleng...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.44.4.491
更新日期:1969-04-01 00:00:00
abstract::The effect of initial oxygen concentration on the rate and extent of oxidation of the respiratory chain carriers of anaerobic mitochondria from mung bean (Phaseolus aureus) seedlings was examined. The substrate was succinate, with malonate added to give malonate to succinate ratios of 6 to 12, thereby minimizing the f...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.50.1.95
更新日期:1972-07-01 00:00:00
abstract::Gene expression in the aleurone and endosperm is highly regulated during both seed development and germination. Studies of alpha-amylase expression in the aleurone of barley (Hordeum vulgare) have generated the current paradigm for hormonal control of gene expression in germinating cereal grain. Gene expression studie...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.106.3.929
更新日期:1994-11-01 00:00:00
abstract::Flowering of the facultative long-day plant Arabidopsis is controlled by several endogenous and environmental factors, among them gibberellins (GAs) and day length. The promotion of flowering by long days involves an endogenous clock that interacts with light cues provided by the environment. Light, and specifically p...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.007625
更新日期:2002-12-01 00:00:00
abstract::Nitrate releases seed dormancy in Arabidopsis (Arabidopsis thaliana) Columbia accession seeds in part by reducing abscisic acid (ABA) levels. Nitrate led to lower levels of ABA in imbibed seeds when included in the germination medium (exogenous nitrate). Nitrate also reduced ABA levels in dry seeds when provided to th...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.126938
更新日期:2009-02-01 00:00:00
abstract::Mitochondria from cotyledons of Vigna sesquipedalis (L.) Fruwirth (starchy seed) showed no NAD-isocitric dehydrogenase (NAD-IDH) activity by the methods which have been known to be useful for the detection of NAD-IDH in mitochondria of plants including castor bean and alaska pea. When the Vigna cotyledon mitochondria ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.44.2.262
更新日期:1969-02-01 00:00:00
abstract::Oleosins are unique and major proteins localized on the surface of oil bodies in diverse seed species. We purified five different oleosins (maize [Zea mays L.] KD 16 and KD 18, soybean [Glycine max L.] KD 18 and KD 24, and rapeseed [Brassica campestris L.] KD 20), and raised chicken antibodies against them. These anti...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.94.3.1282
更新日期:1990-11-01 00:00:00
abstract::Mitochondria isolated from Kalanchoë daigremontiana, a Crassulacean acid metabolism plant, decarboxylate added malate to pyruvate at rates of up to 100 micromoles per hour per milligram original chlorophyll in the presence of ADP. Omitting ADP reduces this rate by approximately 50%. Antimycin A inhibits malate decarbo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.65.4.675
更新日期:1980-04-01 00:00:00
abstract::We have studied the effects of ATP and ADP on the oxidation of malate by coupled and uncoupled mitochondria prepared from etiolated hypocotyls of mung bean (Vigna radiata L.).In coupled mitochondria, ATP (1 millimolar) increased pyruvate production and decreased oxaloacetate formation without altering the rate of oxyg...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.76.1.21
更新日期:1984-09-01 00:00:00
abstract::Arbuscular mycorrhiza (AM) is a mutual symbiosis that involves a complex symbiotic interface over which nutrients are exchanged between the plant host and the AM fungus. Dozens of genes in the host are required for the establishment and functioning of the interaction, among them nutrient transporters that mediate the ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.15.00310
更新日期:2015-07-01 00:00:00
abstract::This study concerns the selective absorption of K and Rb or of K and Na by intact sugar beet (Beta vulgaris) plants from modified conventional nutrient solutions over an extended period of plant growth. Long term results agreed with those of short term experiments by other investigators using excised root systems and ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.47.5.709
更新日期:1971-05-01 00:00:00
abstract::Strigolactones (SLs) are plant hormones that suppress lateral shoot branching, and act to regulate root hair elongation and lateral root formation. Here, we show that SLs are regulators of plant perception of or response to low inorganic phosphate (Pi) conditions. This regulation is mediated by MORE AXILLARY GROWTH2 (...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.112.202358
更新日期:2012-11-01 00:00:00
abstract::In a survey of over 300 nonevergreen dicots in 69 families, many species were found to have translucent patterns attributed to the presence of bundle-sheath extensions (BSE) on the small and ultimate veinlets. The BSE have been shown by others to inhibit transverse air movement within leaves, and it has been suggested...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.99.4.1677
更新日期:1992-08-01 00:00:00
abstract::Ecophysiological models predict quantitative traits of one genotype in any environment, whereas quantitative trait locus (QTL) models predict the contribution of alleles to quantitative traits under a limited number of environments. We have combined both approaches by dissecting into effects of QTLs the parameters of ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.013839
更新日期:2003-02-01 00:00:00
abstract::The hypothesis of optimal stomatal conductance predicts conductance should vary with changes of the vapor pressure difference between leaf and air (VPD) to keep the partial derivative of transpiration rate (E) with respect to assimilation rate (A) constant ( partial differentialE/ partial differentialA = lambda). Stom...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.79.3.614
更新日期:1985-11-01 00:00:00
abstract::Leaves of woad (Isatis tinctoria L.) were found to incorporate efficiently tritiated indoleacetaldoxime and (35)S from (35)S-l-cystine into glucobrassicin and sulfoglucobrassicin. Time course of incorporation of (35)S from (35)S-cystine into the glucosinolates indicated that glucobrassicin was formed first and then su...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.50.1.43
更新日期:1972-07-01 00:00:00
abstract::The actin cytoskeleton is hypothesized to play a major role in gravity perception and transduction mechanisms in roots of plants. To determine whether actin microfilaments (MFs) are involved in these processes in stem-like organs, we studied gravitropism in Arabidopsis inflorescence stems and hypocotyls. Localization ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.010804
更新日期:2002-02-01 00:00:00
abstract::Transcription of the Arabidopsis thaliana gene encoding ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) activase (RCA) is organ-specific, light-responsive, and regulated by the circadian clock. RCA is transcribed throughout the green parts of the plant, but not in roots and petals. Responses elicited by shor...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.112.1.43
更新日期:1996-09-01 00:00:00
abstract::Changes in neutral sugar, uronic acid, and protein content of tomato (Lycopersicon esculentum Mill) cell walls during ripening were characterized. The only components to decline in amount were galactose, arabinose, and galacturonic acid. Isolated cell walls of ripening fruit contained a water-soluble polyuronide, poss...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.63.1.117
更新日期:1979-01-01 00:00:00
abstract::Transgenic tobacco plants carrying a fusion between the nopaline synthase (nos) promoter and chloramphenicol acetyltransferase (CAT) reporter gene (cat) were studied for their inducibility by salicylic acid (SA) or methyl jasmonate (MJ) treatments. Either chemical significantly increased CAT activity to a level much h...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.1.97
更新日期:1993-09-01 00:00:00
abstract::We report the characterization of cis-acting elements involved in light regulation of the nuclear gene (GapA) that encodes the A subunit of glyceraldehyde 3-phosphate dehydrogenase in Arabidopsis thaliana. Our previous deletion analyses indicate that the -277 to -195 upstream region of GapA is essential for light indu...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.112.4.1563
更新日期:1996-12-01 00:00:00
abstract::Here, we investigated the physiological role of Arabidopsis (Arabidopsis thaliana) AtNUDX6, the gene encoding ADP-ribose (Rib)/NADH pyrophosphohydrolase, using its overexpressor (Pro35S:AtNUDX6) or disruptant (KO-nudx6). The level of NADH in Pro35S:AtNUDX6 and KO-nudx6 plants was decreased and increased, respectively,...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.153569
更新日期:2010-04-01 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
pub_type: 杂志文章
doi:10.1104/pp.69.6.1247
更新日期:1982-06-01 00:00:00
abstract::When the midribs of untreated traps of Dionaea muscipula are frozen in liquid nitrogen after rapid closure, they contain significantly less ATP than those frozen before closure. Exogenous ATP causes a significant increase in the rate of mechanically stimulated trap closure. Illuminated traps close faster than those ke...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.51.1.17
更新日期:1973-01-01 00:00:00
abstract::Increased levels of solar ultraviolet (290-320 nm) (UV-B) radiation could have profound effects on plant proteins because the aromatic amino acids in proteins absorb strongly in this spectral region. We have investigated the effects of UV-B radiation on plant proteins and have observed a novel 66-kD protein. This prod...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.1.221
更新日期:1995-09-01 00:00:00
abstract::We have determined the levels of photosystem II activity and polypeptide abundance in whole leaves and isolated bundle sheath and mesophyll cells of C(4), "C(4)-like," and C(3) species of the genus Flaveria (Asteraceae). On a chlorophyll basis, the whole leaf levels of the D1, D2, and 34-kilodalton photosystem II poly...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.98.3.1154
更新日期:1992-03-01 00:00:00
abstract::In response to a moisture gradient, roots exhibit hydrotropism to control the orientation of their growth. To exhibit hydrotropism, however, they must overcome the gravitropism that is dominant on Earth. We found that moisture gradient or water stress caused immediate degradation of the starch anchors, amyloplasts, in...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.102.018853
更新日期:2003-06-01 00:00:00