Abstract:
:Seed dormancy is a common phase of the plant life cycle, and several parts of the seed can contribute to dormancy. Whole seeds, seeds lacking the testa, embryos, and isolated aleurone layers of Arabidopsis (Arabidopsis thaliana) were used in experiments designed to identify components of the Arabidopsis seed that contribute to seed dormancy and to learn more about how dormancy and germination are regulated in this species. The aleurone layer was found to be the primary determinant of seed dormancy. Embryos from dormant seeds, however, had a lesser growth potential than those from nondormant seeds. Arabidopsis aleurone cells were examined by light and electron microscopy, and cell ultrastructure was similar to that of cereal aleurone cells. Arabidopsis aleurone cells responded to nitric oxide (NO), gibberellin (GA), and abscisic acid, with NO being upstream of GA in a signaling pathway that leads to vacuolation of protein storage vacuoles and abscisic acid inhibiting vacuolation. Molecular changes that occurred in embryos and aleurone layers prior to germination were measured, and these data show that both the aleurone layer and the embryo expressed the NO-associated gene AtNOS1, but only the embryo expressed genes for the GA biosynthetic enzyme GA3 oxidase.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Bethke PC,Libourel IG,Aoyama N,Chung YY,Still DW,Jones RLdoi
10.1104/pp.106.093435subject
Has Abstractpub_date
2007-03-01 00:00:00pages
1173-88issue
3eissn
0032-0889issn
1532-2548pii
pp.106.093435journal_volume
143pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::The chemical identity of the reactive oxygen species (ROS) and its subcellular origin will leave a specific imprint on the transcriptome response. In order to facilitate the appreciation of ROS signaling, we developed a tool that is tuned to qualify this imprint. Transcriptome data from experiments in Arabidopsis (Ara...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.113.218206
更新日期:2013-10-01 00:00:00
abstract::Photosynthetic rate, ribulose 1,5-bisphosphate carboxylase activity, specific leaf weight, and leaf concentrations of carbohydrates, proteins, chlorophyll, and inorganic phosphate were determined periodically from midbloom until maturity in leaves of soybean plants (Glycine max L., var. Hodgson) from which reproductiv...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.61.3.394
更新日期:1978-03-01 00:00:00
abstract::Young cabbage plants (Brassica oleracea L. var. capitata) that were exposed to an atmosphere at 50% relative humidity transpired freely and accumulated significant quantities of (45)Ca in the leaves. Plants that were enclosed by plastic bags to stop transpiration from all leaves exhibited guttation with the developmen...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.60.6.854
更新日期:1977-12-01 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
pub_type: 杂志文章
doi:10.1104/pp.126.4.1519
更新日期:2001-08-01 00:00:00
abstract::Starch and storage proteins determine the weight and quality of cereal grains. Synthesis of these two grain components has been comprehensively investigated, but the transcription factors responsible for their regulation remain largely unknown. In this study, we investigated the roles of NAM, ATAF, and CUC (NAC) trans...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.20.00984
更新日期:2020-12-01 00:00:00
abstract::The levels of endogenous brassinosteroids (BRs) and the expression of the biosynthesis/metabolism/perception genes involved have been investigated during the development and germination of pea (Pisum sativum) seeds. When seeds were rapidly growing, the level of biologically active BRs (brassinolide [BL] and castastero...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.106.093096
更新日期:2007-04-01 00:00:00
abstract::Recent advances in the development of methods for measuring cytoplasmic Ca(2+) levels in higher plant cells are discussed. Emphasis is placed on the new generation of Ca(2+)-sensitive fluorescent dyes particularly fura-2 and indo-1. These dyes offer many advantages for the measurement of cytosolic Ca(2+) levels. They ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.93.3.841
更新日期:1990-07-01 00:00:00
abstract::The auxin-inducible homeobox gene Oshox1 of rice (Oryza sativa) is a positive regulator of procambial cell fate commitment, and its overexpression reduces the sensitivity of polar auxin transport (PAT) to the PAT inhibitor 1-N-naphthylphthalamic acid (NPA). Here, we show that wild-type rice leaves formed under conditi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.009167
更新日期:2002-11-01 00:00:00
abstract::The evolutionarily conserved YidC/Oxa1/Alb3 proteins are involved in the insertion of membrane proteins in all domains of life. In plant mitochondria, individual knockouts of OXA1a, OXA2a, and OXA2b are embryo-lethal. In contrast to other members of the protein family, OXA2a and OXA2b contain a tetratricopeptide repea...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.18.01286
更新日期:2019-02-01 00:00:00
abstract::The influence of light on asexual fruiting and mycelial growth of Phycomyces blakesleeanus Burgeff was studied by means of fruiting body counts and size measurements in cultures on solid media under varied incubation conditions. Five types of photoresponses were shown by ATCC Strain 8743a: (a) photoinduction of giant ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.51.3.570
更新日期:1973-03-01 00:00:00
abstract::L-myo-inositol 1-phosphate synthase (EC 5.5.1.4) from cyanobacterial (Spirulina platensis), algal (Euglena gracilis), and higher plant (Oryza sativa, Vigna radiata) sources was purified to electrophoretic homogeneity, biochemically characterized, and compared. Both chloroplastic and cytosolic forms of the enzyme were ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.115.2.727
更新日期:1997-10-01 00:00:00
abstract::The light and CO(2) response of (a) photosynthesis, (b) the activation state and total catalytic efficiency (k(cat)) of ribulose-1,5-bisphosphate carboxylase (rubisco), and (c) the pool sizes of ribulose 1,5-bisphosphate, (RuBP), ATP, and ADP were studied in the C(3) annuals Chenopodium album and Phaseolus vulgaris at...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.94.4.1735
更新日期:1990-12-01 00:00:00
abstract::Elevated carbon dioxide (CO2) in leaves closes stomatal apertures. Research has shown key functions of the β-carbonic anhydrases (βCA1 and βCA4) in rapid CO2-induced stomatal movements by catalytic transmission of the CO2 signal in guard cells. However, the underlying mechanisms remain unclear, because initial studies...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.15.00646
更新日期:2015-10-01 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
pub_type: 杂志文章
doi:10.1104/pp.20.00873
更新日期:2020-10-01 00:00:00
abstract::Intact spinach and barley chloroplast normally incorporate (14)C-acetate into palmitate and oleate as the major (14)C fatty acids. Addition of nitrite markedly altered the relative patterns of the products with the appearance of stearate, a drop in oleate, but no marked change in palmitate. Arsenite greatly increased ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.49.4.497
更新日期:1972-04-01 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::A physiologically significant level of intracellular carbonic anhydrase has been identified in Chlamydomonas reinhardtii after lysis of the cell wall-less mutant, cw15, and two intracellular polypeptides have been identified which bind to anti-carbonic anhydrase antisera. The susceptibility of the intracellular activi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.89.3.904
更新日期:1989-03-01 00:00:00
abstract::The spontaneous occurrence of resistance to the herbicide glyphosate in weed species has been an extremely infrequent event, despite over 20 years of extensive use. Recently, a glyphosate-resistant biotype of goosegrass (Eleusine indica) was identified in Malaysia exhibiting an LD(50) value approximately 2- to 4-fold ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.001560
更新日期:2002-07-01 00:00:00
abstract::Partial submergence of deepwater rice (Oryza sativa L. cv Habiganj Aman II) elicits three responses: enhancement of internodal elongation, inhibition of leaf growth, and promotion of adventitious root formation. All three responses can be induced in isolated stem sections by treatment with ethylene. Dose-response curv...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.84.2.395
更新日期:1987-06-01 00:00:00
abstract::Influx and accumulation of K(+) in barley (Hordeum vulgare L. cv Fergus) roots were measured at two temperatures (10 degrees C and 20 degrees C) in plants which had been grown with roots and shoots at 20 degrees C (HT plants), with roots and shoots at 10 degrees C (LT plants), and with roots at 10 degrees C and shoots...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.74.3.730
更新日期:1984-03-01 00:00:00
abstract::During monocarpic senescence in soybean (Glycine max [L.] Merrill cv. Anoka) there is a remobilization of nitrogen from the leaves to the seeds, and it has been hypothesized that this loss of nitrogen from the leaves induces foliar yellowing. The phloem in a small segment of the petiole between the pods and the target...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.69.4.754
更新日期:1982-04-01 00:00:00
abstract::A beta-primeverosidase from tea (Camellia sinensis) plants is a unique disaccharide-specific glycosidase, which hydrolyzes aroma precursors of beta-primeverosides (6-O-beta-D-xylopyranosyl-beta-D-glucopyranosides) to liberate various aroma compounds, and the enzyme is deeply concerned with the floral aroma formation i...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.102.011023
更新日期:2002-12-01 00:00:00
abstract::Red pines (Pinus resinosa Ait.) were grown in a pasteurized sandy loam either unamended with phosphate or fertilized with one of two levels of phosphate (34 or 136 mg/kg) as superphosphate, and with and without addition of Hebeloma arenosa inoculum. Shoot and total dry weights of mycorrhizal seedlings grown in soil un...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.100.2.713
更新日期:1992-10-01 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
pub_type: 杂志文章
doi:10.1104/pp.69.4.978
更新日期:1982-04-01 00:00:00
abstract::Regulation of apoplastic NH4+ concentration in leaves of oilseed rape (Brassica napus L.) was studied using a vacuum-infiltration technique that allowed controlled manipulations of the apoplastic solution. In leaves infiltrated with NH4+-free solution, the apoplastic NH4+ concentration returned in less than 1.5 min to...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.118.4.1361
更新日期:1998-12-01 00:00:00
abstract::Single-cell RNA sequencing (scRNA-seq) has been used extensively to study cell-specific gene expression in animals, but it has not been widely applied to plants. Here, we describe the use of a commercially available droplet-based microfluidics platform for high-throughput scRNA-seq to obtain single-cell transcriptomes...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.18.01482
更新日期:2019-04-01 00:00:00
abstract::We report the molecular cloning and sequence of the cDNA coding for the biotin-containing subunit of the chloroplastic acetylcoenzyme A (CoA) carboxylase (ACCase) of Arabidopsis thaliana (CAC1). The 3' end of the CAC1 sequence, coding for a peptide of 94 amino acids, which includes a putative biotinylation motif, was ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.2.619
更新日期:1995-10-01 00:00:00
abstract::The tissue distributions of dhurrin [p-hydroxy-(S)-mandelonitrile-beta-d-glucoside] and of enzymes involved in its metabolism have been investigated in leaf blades of light-grown Sorghum bicolor seedlings. Enzymic digestion of these leaves using cellulase has enabled preparations of epidermal and mesophyll protoplasts...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.63.6.1022
更新日期:1979-06-01 00:00:00
abstract::Root nodules were harvested from chamber-grown soybean (Glycine max L. Merrill cv Woodworth) plants throughout development. Apparent nitrogenase activity (acetylene reduction) peaked before seeds began to develop, but a significant amount of activity remained as the seeds matured. Nodule senescence was defined as the ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.71.4.797
更新日期:1983-04-01 00:00:00
abstract::Why the leaves of many woody species accumulate anthocyanins prior to being shed has long puzzled biologists because it is unclear what effects anthocyanins may have on leaf function. Here, we provide evidence for red-osier dogwood (Cornus stolonifera) that anthocyanins form a pigment layer in the palisade mesophyll l...
journal_title:Plant physiology
pub_type: 杂志文章
doi:
更新日期:2001-10-01 00:00:00