Abstract:
:Several genes encoding putative glutathione peroxidase have been isolated from a variety of plants, all of which show the highest homology to the phospholipid hydroperoxide isoform. Several observations suggest that the proteins are involved in biotic and abiotic stress responses. Previous studies on the regulation of gpx1, the Citrus sinensis gene encoding phospholipid hydroperoxide isoform, led to the conclusion that salt-induced expression of gpx1 transcript and its encoded protein is mediated by oxidative stress. In this paper, we describe the induction of gpx1 promoter:uidA fusions in stable transformants of tobacco (Nicotiana tabacum) cultured cells and plants. We show that the induction of gpx1 by salt and oxidative stress occurs at the transcriptional level. gpx1 promoter analysis confirmed our previous assumption that the salt signal is transduced via oxidative stress. We used induction of the fusion construct to achieve better insight into, and to monitor salt-induced oxidative stress. The gpx1 promoter responded preferentially to oxidative stress in the form of hydrogen peroxide, rather than to superoxide-generating agents. Antioxidants abolished the salt-induced expression of gpx1 promoter, but were unable to eliminate the induction by H2O2. The commonly employed NADPH-oxidase inhibitor diphenyleneiodonium chloride and catalase inhibited the H2O2-induced expression of gpx1 promoter, but did not affect its induction by salt. Our results led us to conclude that salt induces oxidative stress in the form of H2O2, its production occurs in the intracellular space, and its signal transduction pathway activating the gpx1 promoter is different from the pathway induced by extracellular H2O2.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Avsian-Kretchmer O,Gueta-Dahan Y,Lev-Yadun S,Gollop R,Ben-Hayyim Gdoi
10.1104/pp.104.041921subject
Has Abstractpub_date
2004-07-01 00:00:00pages
1685-96issue
3eissn
0032-0889issn
1532-2548pii
pp.104.041921journal_volume
135pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::An interval on barley (Hordeum vulgare L.) chromosome 7 accounting for significant quantitative trait locus effects for winter hardiness were detected in a winter (Dicktoo) x spring (Morex) barley population (P.M. Hayes, T. Blake, T.H.H. Chen, S. Tragoonrung, F. Chen, A. Pan, and B. Liu [1993] Genome 36: 66-71). Two m...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.3.1233
更新日期:1995-07-01 00:00:00
abstract::CTF7 is an essential gene in yeast that is required for the formation of sister chromatid cohesion. While recent studies have provided insights into how sister chromatid cohesion is established, less is known about how specifically CTF7 facilitates the formation of cohesion, and essentially nothing is known about how ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.157560
更新日期:2010-10-01 00:00:00
abstract::The delivery of proteins instead of DNA into plant cells allows for a transient presence of the protein or enzyme that can be useful for biochemical analysis or genome modifications. This may be of particular interest for genome editing, because it can avoid DNA (transgene) integration into the genome and generate pre...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.113.233650
更新日期:2014-02-01 00:00:00
abstract::A physical analysis of water movement through elongating soybean (Glycine max L. Merr.) hypocotyls was made to determine why significant water potentials persist in growing tissues even though the external water potentials were zero and transpiration is virtually zero. The analysis was based on a water transport theor...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.62.3.423
更新日期:1978-09-01 00:00:00
abstract::Chloroplasts have been isolated from 4- to 6-day-old corn (Zea mays) leaves capable of assimilating 45 micromoles CO(2) per milligram chlorophyll per hour. The effects of various factors such as inorganic phosphate, reducing agents, inhibitors, intermediates of the photosynthetic carbon reduction cycle, organic acids,...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.49.4.607
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::Concanavalin A, soybean (Glycine max L.) lectin, castor bean (Ricinus communis L.) lectin, and peanut (Arachis hypogaea L.) lectin were able to agglutinate protoplasts prepared from a variety of plant species. The seven other lectins tried were unable to agglutinate those protoplasts tested. Protoplasts prepared from ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.61.4.626
更新日期:1978-04-01 00:00:00
abstract::Folates typically have gamma-linked polyglutamyl tails that make them better enzyme substrates and worse transport substrates than the unglutamylated forms. The tail can be shortened or removed by the vacuolar enzyme gamma-glutamyl hydrolase (GGH). It is known that GGH is active only as a dimer and that plants can hav...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.124479
更新日期:2008-10-01 00:00:00
abstract::This study examines the capacity of intact spinach (Spinacia oleracea L.) chloroplasts to fix (14)CO(2) when supplied with Benson-Calvin cycle intermediates in the presence of 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU). Under these conditions, substantial (14)CO(2) fixation occurred in the light but not in the dar...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.72.2.321
更新日期:1983-06-01 00:00:00
abstract::The saturating photon flux density (400 to 700 nanometers) for induction of flowering of the long day plant Anagallis arvensis L. was 1,900 micromoles per square meter per second (6,000 foot-candles) when an 8-hour daylength was extended to 24 hours by a single period of supplementary irradiation. The saturating photo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.62.5.802
更新日期:1978-11-01 00:00:00
abstract::In Ankistrodesmus braunii, in the absence of CO(2), i.e. in CO(2)-free air or N(2), photosynthetic nitrate uptake and nitrate reduction were inhibited, especially at low pH. Under such conditions, glucose stimulated nitrate uptake and reduction to almost the same level in the pH range between 6 and 8.5. CO(2) at 0.03%...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.59.1.18
更新日期:1977-01-01 00:00:00
abstract::A 2-step, 1-dimensional thin-layer chromatographic procedure for isolating indoleacetic acid (IAA) was developed and utilized in investigations of the biosynthesis of IAA from tryptophan-(14)C in cell-free extracts of pea (Pisum sativum L.) shoot tips. Identification of a (14)C-product as IAA was by (a) co-chromatogra...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.42.12.1787
更新日期:1967-12-01 00:00:00
abstract::Both salicylic acid and ferricyanide induce flowering in the long-day plant Lemna gibba L., strain G3 under 8- and 9-hour short days. In both cases the effect is daylength-dependent. Salicylic acid is ineffective on daylengths less than 8 hours and ferricyanide is ineffective on daylengths less than 5 hours. When both...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.65.6.1058
更新日期:1980-06-01 00:00:00
abstract::We studied the relationship between ethylene and gravity-induced upward bending of bermudagrass (Cynodon dactylon L. Pers.) stolons. Ethylene production begins within 3 hours of the onset of gravistimulation, and increases thereafter until the 15th hour, after which it declines. There is a close positive relationship ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.91.4.1251
更新日期:1989-12-01 00:00:00
abstract::Long-term aging of potato (Solanum tuberosum) seed-tubers resulted in a loss of patatin (40 kD) and a cysteine-proteinase inhibitor, potato multicystatin (PMC), as well as an increase in the activities of 84-, 95-, and 125-kD proteinases. Highly active, additional proteinases (75, 90, and 100 kD) appeared in the oldes...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.119.1.89
更新日期:1999-01-01 00:00:00
abstract::The subcellular locations of Ca(2+)-ATPases in the membranes of cauliflower (Brassica oleracea L.) inflorescences were investigated. After continuous sucrose gradient centrifugation a 111-kD calmodulin (CaM)-stimulated and caM-binding Ca(2+)-ATPase (BCA1; P. Askerlund [1996] Plant Physiol 110: 913-922; S. Malmström, P...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.114.3.999
更新日期:1997-07-01 00:00:00
abstract::Breeding crops with the quality of broad-spectrum disease resistance using genetic resources is one of the principal goals of crop improvement. However, the molecular mechanism of broad-spectrum resistance remains largely unknown. Here, we show that GH3-2, encoding an indole-3-acetic acid (IAA)-amido synthetase, media...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.163774
更新日期:2011-01-01 00:00:00
abstract::The vascular cambium produces secondary xylem and phloem in plants and is responsible for wood formation in forest trees. In this study we used a microscale mass-spectrometry technique coupled with cryosectioning to visualize the radial concentration gradient of endogenous indole-3-acetic acid (IAA) across the cambial...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.117.1.113
更新日期:1998-05-01 00:00:00
abstract::Oligomeric proanthocyanidins (PAs) composed primarily of epicatechin units accumulate in the seed coats of the model legume Medicago truncatula, reaching maximal levels at around 20 d after pollination. Genes encoding the single Medicago anthocyanidin synthase (ANS; EC 1.14.11.19) and leucoanthocyanidin reductase (LAR...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.107.107326
更新日期:2007-11-01 00:00:00
abstract::The knotted1 (kn1) homeobox (knox) gene family was first identified through gain-of-function dominant mutants in maize (Zea mays). Class I knox members are expressed in meristems but excluded from leaves. In maize, a loss-of-function phenotype has only been characterized for kn1. To assess the function of another knox...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.113.228791
更新日期:2014-01-01 00:00:00
abstract::C-TERMINALLY ENCODED PEPTIDEs (CEPs) control root system architecture in a non-cell-autonomous manner. In Medicago truncatula, MtCEP1 affects root development by increasing nodule formation and inhibiting lateral root emergence by unknown pathways. Here, we show that the MtCEP1 peptide-dependent increase in nodulation...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.16.00113
更新日期:2016-08-01 00:00:00
abstract::An oligomycin concentration that specifically inhibits oxidative phosphorylation was added to isolated barley (Hordeum vulgare L.) leaf protoplasts at various irradiances and carbon dioxide concentrations. At saturating as well as low light intensities, photosynthetic oxygen evolution was decreased as a result of the ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.102.3.947
更新日期:1993-07-01 00:00:00
abstract::The translocation of radioactive photosynthate was studied in blades detached from plants which had been grown in nutrient solution with and without potassium. Basipetal translocation decreased in the blades of plants deprived of potassium, even when deficiency symptoms were not visible. In such slightly potassium-def...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.45.2.183
更新日期:1970-02-01 00:00:00
abstract::The stamen, which consists of an anther and a filament, is the male reproductive organ in a flower. The specification of stamen identity in Arabidopsis (Arabidopsis thaliana) is controlled by a combination of the B genes APETALA3 (AP3) and PISTILLATA, the C gene AGAMOUS (AG), and the E genes SEPALLATA1 (SEP1) to SEP4....
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.145896
更新日期:2009-11-01 00:00:00
abstract::Plant species differ in response to high available manganese (Mn), but the mechanisms of sensitivity and tolerance are poorly understood. In solution culture, greater than or equal to 30 µm Mn decreased the growth of soybean (Glycine max), but white lupin (Lupinus albus), narrow-leafed lupin (Lupin angustifolius), and...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.15.00726
更新日期:2015-11-01 00:00:00
abstract::The kinetic parameters of auxin transport in suspension-cultured soybean (Glycine max [L.] Merr.) root cells were investigated. The same processes that are responsible for polar indoleacetic acid (IAA) transport in other plant tissues were found to occur in soybean root cells. These include (a) passive diffusion of th...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.96.1.184
更新日期:1991-05-01 00:00:00
abstract::We identified a dwarf transgenic hybrid poplar (Populus tremula x Populus alba) after screening of 627 independent activation-tagged transgenic lines in tissue culture, greenhouse, and field environments. The cause of the phenotype was a hyperactivated gene encoding GA 2-oxidase (GA2ox), the major gibberellin (GA) cat...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.020354
更新日期:2003-07-01 00:00:00
abstract::A study was made of diurnal trends in net photosynthetic rate and carbohydrate levels of unifoliolate leaves of soybean (Glycine max L. Merrill) under constant environmental conditions (50,000-lux light intensity, 24.5 C air temperature, 60% relative humidity, and 300 microliters of CO(2) per liter of air).Net photosy...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.51.5.871
更新日期:1973-05-01 00:00:00
abstract::An NaCl-resistant line has been developed from suspension-cultured tobacco cells (Nicotiana tabacum/gossii) by stepwise increases in the NaCl concentration in the medium. Resistance showed stability through at least 24 generations in the absence of added NaCl.Above an external NaCl concentration of 35 millimolar, prol...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.73.3.624
更新日期:1983-11-01 00:00:00
abstract::Endosperm liquid bathes the embryo of Phaseolus vulgaris from the heart stage through the late cotyledon state. This liquid was aspirated from many ovules of the same stage, pooled, and analyzed for the following constituents and parameters: [List: see text]. ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.51.3.454
更新日期:1973-03-01 00:00:00