Abstract:
:The chloroplast response in the green alga Dunaliella salina to irradiance stress was investigated. Cells were grown under low light (LL) at 100 [mu]mol photons m-2 s-1 or high light (HL) at 2000 [mu]mol photons m-2 s-1 incident intensity. LL-grown cells had a low chlorophyll (Chl) a/b ratio, an abundance of light-harvesting complex II proteins (LHC-II), and a large Chl antenna size. HL-grown cells had a higher Chl a/b ratio, relatively fewer LHC-II, and a small Chl antenna size. The more abundant higher molecular mass subunits of the LHC-II (approximately 31 kD) were selectively depleted from the thylakoid membrane of HL-grown cells. Light-shift experiments defined the kinetics of change in the subunit composition of the LHC-II and suggested distinct mechanisms in the acclimation of thylakoids to HL or LL conditions. The results showed that irradiance exerts a differential regulation on the expression of various Lhcb genes. The specific polyclonal antibodies used in this work, raised against the purified LHC-II, cross-reacted with a polypeptide of approximately 20 kD in HL-grown samples. In this work we examined the dynamics of induction of this novel protein and discuss its function in terms of a chloroplast response to the level of irradiance.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Webb MR,Melis Adoi
10.1104/pp.107.3.885subject
Has Abstractpub_date
1995-03-01 00:00:00pages
885-893issue
3eissn
0032-0889issn
1532-2548pii
107/3/885journal_volume
107pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::The Type II mutants of the cyanobacterium Synechococcus PCC7942 (G.D. Price, M.R. Badger [1989] Plant Physiol 91: 514-525) are able to accumulate a large pool of inorganic carbon inside the cell, but are unable to utilize it for CO(2) fixation, resulting in a high CO(2)-requiring phenotype. We have isolated a 3.5-kb B...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.100.2.794
更新日期:1992-10-01 00:00:00
abstract::A toxic effect of alpha,alpha-trehalose in an angiospermic plant, Cuscuta reflexa (dodder), is described. This disaccharide and its analogs, 2-aminotrehalose and 4-aminotrehalose, induced a rapid blackening of the terminal region of the vine which is involved in elongation growth. From the results of in vitro growth o...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.68.6.1369
更新日期:1981-12-01 00:00:00
abstract::Hormonal and plant factors regulating the development of the inhibited cotyledonary buds of Lycopersicon esculentum Mill. cv. ;Fireball' seedlings were studied. Excision of the immature plumular leaves of 5- to 20- millimeter length significantly stimulated bud development after 2 to 4 days, but excision of leaves exc...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.62.2.276
更新日期:1978-08-01 00:00:00
abstract::In celery (Apium graveolens L.), long-distance transport of reduced carbon occurs both in the form of sucrose (Suc) and mannitol. The presence of mannitol has been related to the resistance of celery to salt stress. To investigate the transport events occurring during salt stress, we have cloned the H(+)/Suc transport...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.122.4.1447
更新日期:2000-04-01 00:00:00
abstract::An important component of conventional sense, antisense, and double-strand RNA-based gene silencing constructs is the transcriptional terminator. Here, we show that this regulatory element becomes obsolete when gene fragments are positioned between two oppositely oriented and functionally active promoters. The resulti...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.106.082271
更新日期:2006-08-01 00:00:00
abstract::The relationship of triazine resistance to decreased plant productivity was investigated in Senecio vulgaris L. F(1) reciprocal hybrids were developed from pure-breeding susceptible (S) and resistant (R) lines. The four biotypes (S, S x R, R, R x S) were compared in terms of atrazine response, electron transport, carb...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.87.1.183
更新日期:1988-05-01 00:00:00
abstract::The brown planthopper, Nilaparvata lugens, is a pest that threatens rice (Oryza sativa) production worldwide. While feeding on rice plants, planthoppers secrete saliva, which plays crucial roles in nutrient ingestion and modulating plant defense responses, although the specific functions of salivary proteins remain la...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.17.00755
更新日期:2018-01-01 00:00:00
abstract::To determine the driving forces for symplastic sugar flux between mesophyll and phloem, gradients of sugar concentrations and osmotic pressure were studied in leaf tissues of two Scrophulariaceae species, Alonsoa meridionalis and Asarina barclaiana. A. meridionalis has a typical symplastic configuration of minor-vein ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.105.068312
更新日期:2006-01-01 00:00:00
abstract::Mg-chelatase catalyzes the first step unique to the chlorophyll branch of tetrapyrrole biosynthesis, namely the insertion of Mg into protoporphyrin IX (Proto). Mg-chelatase was assayed in intact chloroplasts from semi-green cucumber (Cucumis sativus, cv Sumter) cotyledons. In the presence of Proto and MgATP, enzyme ac...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.95.4.1189
更新日期:1991-04-01 00:00:00
abstract::Seed number and quality are key traits determining plant fitness and crop yield and rely on combined competence in male and female fertilities. Sucrose metabolism is central to reproductive success. It remains elusive, though, how individual sucrose metabolic enzymes may regulate the complex reproductive processes. He...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.16.00197
更新日期:2016-05-01 00:00:00
abstract::Opaque or nonvitreous phenotypes relate to the seed architecture of maize (Zea mays) and are linked to loci that control the accumulation and proper deposition of storage proteins, called zeins, into specialized organelles in the endosperm, called protein bodies. However, in the absence of null mutants of each type of...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.154690
更新日期:2010-05-01 00:00:00
abstract::Respiration utilizing NAD-linked substrates in mitochondria isolated from cotyledons of etiolated peas (Pisum sativum L. var. Homesteader) by sucrose density gradient centrifugation exhibited resistance to rotenone. The inhibited rate of alpha-ketoglutarate oxidation was equivalent to the recovered rate of malate oxid...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.68.6.1211
更新日期:1981-12-01 00:00:00
abstract::Phosphate (Pi) deficiency strongly limits plant growth, and plant roots foraging the soil for nutrients need to adapt to optimize Pi uptake. Ca2+ is known to signal in root development and adaptation but has to be tightly controlled, as it is highly toxic to Pi metabolism. Under Pi starvation and the resulting decreas...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.18.01469
更新日期:2019-04-01 00:00:00
abstract::To obtain detailed information about gene expression during stamen development in Arabidopsis (Arabidopsis thaliana), we compared, by microarray analysis, the gene expression profile of wild-type inflorescences to those of the floral mutants apetala3, sporocyteless/nozzle, and male sterile1 (ms1), in which different a...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.107.104422
更新日期:2007-11-01 00:00:00
abstract::Decomposition of 2-chloroethylphosphonic acid (Ethephon) was studied in dried films at various water vapor pressures (0.6 to 86.9 millimeters Hg, 3.2 to 93.9% relative humidity) and temperatures (20, 30, 40, and 50 C) at pH 6.3 and 7.0. The rate of decomposition could be determined equally well by [(14)C]Ethephon or e...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.63.3.474
更新日期:1979-03-01 00:00:00
abstract::Water conductance through Abies amabilis seedlings was measured while the roots were exposed to temperatures from 15 to 0.25 degrees C. Before conductance was measured, the seedlings were preconditioned for 3 months at either a high temperature (23 degrees C) or a low temperature (3 degrees C). For both groups of seed...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.74.1.77
更新日期:1984-01-01 00:00:00
abstract::Cysthathionine [gamma]-synthase (CS), an enzyme involved in methionine biosynthesis, was purified from an acetone powder prepared from wheat (Triticum aestivum L.). After several chromatographic steps and radiolabeling of the partially purified enzyme with sodium cyanoboro[3H]hydride, a single polypeptide with a molec...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.4.1215
更新日期:1994-04-01 00:00:00
abstract::The phospholipid dependence of the UDP-glucose sterol glucosyl transferase (UDPG-SGTase) from maize coleoptiles was previously demonstrated using the partially purified and highly delipidated enzyme, in the presence of the detergent Triton X-100 (P Ullmann, P Bouvier-Navé, P Benveniste [1987] Plant Physiol 85: 51-55)....
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.91.2.567
更新日期:1989-10-01 00:00:00
abstract::The transcription factors LEAFY (LFY) and APETALA1 (AP1), together with the AP1 paralog CAULIFLOWER (CAL), control the onset of flower development in a partially redundant manner. This redundancy is thought to be mediated, at least in part, through the regulation of a shared set of target genes. However, whether these...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.17.00098
更新日期:2017-06-01 00:00:00
abstract::Cyanobacteria are oxygenic photosynthetic prokaryotes that are the progenitors of the chloroplasts of algae and plants. These organisms harvest light using large membrane-extrinsic phycobilisome antenna in addition to membrane-bound chlorophyll-containing proteins. Similar to eukaryotic photosynthetic organisms, cyano...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.111.192849
更新日期:2012-04-01 00:00:00
abstract::The patterns of expression for genes encoding several C4 photosynthetic enzymes were examined in light-grown and dark-grown (etiolated) cotyledons of amaranth (Amaranthus hypochondriacus), a dicotyledonous C4 plant. The large subunit and small subunit of ribulose-1,5-bisphosphate carboxylase (RuBPCase), phosphoenolpyr...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.102.4.1085
更新日期:1993-08-01 00:00:00
abstract::As a step to understanding how the photoreceptor phytochrome acts to change the transcription of specific nuclear genes in Lemna gibba, we wish to compare promoter elements involved in negative regulation by phytochrome with those involved in positive regulation. We have isolated three genes negatively regulated by ph...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.101.3.915
更新日期:1993-03-01 00:00:00
abstract::Ethylene-induced inhibition of elongation and promotion of lateral expansion in the stems of etiolated pea (Pisum sativum L. var Alaska) seedlings is not associated with any alteration of auxin-stimulated proton extrusion. Indeed, lateral expansion in response to ethylene apparently requires an acidified wall since it...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.73.2.413
更新日期:1983-10-01 00:00:00
abstract::Phosphinothricin (PPT) is the active component of a family of environmentally safe, nonselective herbicides. Resistance to PPT in transgenic crops has been reported by nuclear expression of a bar transgene encoding phosphinothricin acetyltransferase, a detoxifying enzyme. We report here expression of a bacterial bar g...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.125.4.1585
更新日期:2001-04-01 00:00:00
abstract::Plants of Zea mays were grown with their roots confined to growing tubes, consisting of cylindrical or spherical glass tubes fitted at the bottom with a stopcock. Nutrient solution was circulated past the roots, and when a plant was 21 to 25 days old, the stopcock was closed, the root excised from the plant and connec...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.85.1.164
更新日期:1987-09-01 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::Protein phosphorylation, catalyzed by the opposing actions of protein kinases and phosphatases, is a cornerstone of cellular signaling and regulation. Since their discovery, protein phosphatases have emerged as highly regulated enzymes with specificity that rivals their counteracting kinase partners. However, despite ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.111.182493
更新日期:2011-12-01 00:00:00
abstract::Enriched mitochondrial fractions isolated from durum wheat seedlings via differential centrifugation exhibited classical cyanide- or antimycin A-insensitive O(2) uptake which was inhibited by either salicylhydroxamic acid or propyl gallate. Further purification of this fraction using Percoll density gradients resulted...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.67.3.594
更新日期:1981-03-01 00:00:00
abstract::Immature soybean embryos were isolated from soybean [Glycine max (L.) Merr.] seeds at various stages of development to study their accumulation of [(14)C]sucrose in vitro. Isolated embryos accumulate sucrose at a constant rate over several hours, the label entering large, endogenous pools of sucrose from which starch,...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.70.4.953
更新日期:1982-10-01 00:00:00
abstract::Oat (Avena sativa L.) seeds harvested at 2-day intervals from anthesis to maturity were tested for their ability to incorporate [(35)S]sulfate into protein. Incorporation of [(35)S]sulfate into TCA-insoluble material began 2 to 4 days postanthesis (DPA), reached a peak 14 to 16 DPA, and was barely detectable by 24 DPA...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.84.2.337
更新日期:1987-06-01 00:00:00