نتایج جستجو برای: salt stress

تعداد نتایج: 509169  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Surekha Katiyar-Agarwal Jianhua Zhu Kangmin Kim Manu Agarwal Xinmiao Fu Alex Huang Jian-Kang Zhu

The adverse effects of high salt on plants include Na(+) toxicity and hyperosmotic and oxidative stresses. The plasma membrane-localized Na(+)/H(+) antiporter SOS1 functions in the extrusion of toxic Na(+) from cells and is essential for plant salt tolerance. We report here that, under salt or oxidative stress, SOS1 interacts through its predicted cytoplasmic tail with RCD1, a regulator of oxid...

2010
Mercedes Hernandez Nieves Fernandez-Garcia Pedro Diaz-Vivancos Enrique Olmos

Salinity affects normal growth and development of plants depending on their capacity to overcome the induced stress. The present study was focused on the response and regulation of the antioxidant defence system in Brassica oleracea roots under short and long salt treatments. The function and the implications of hydrogen peroxide as a stressor or as a signalling molecule were also studied. Two ...

Journal: :Plant & cell physiology 2009
Yuichi Tada Takaaki Kashimura

To identify key proteins in the regulation of salt tolerance in the mangrove plant Bruguiera gymnorhiza, proteome analysis of samples grown under conditions of salt stress was performed. Comparative two-dimensional electrophoresis revealed that two, three and one protein were differentially expressed in the main root, lateral root and leaf, respectively, in response to salt stress. Among these,...

Journal: :Annals of botany 2009
M M Chaves J Flexas C Pinheiro

BACKGROUND Plants are often subjected to periods of soil and atmospheric water deficits during their life cycle as well as, in many areas of the globe, to high soil salinity. Understanding how plants respond to drought, salt and co-occurring stresses can play a major role in stabilizing crop performance under drought and saline conditions and in the protection of natural vegetation. Photosynthe...

Journal: :desert 0
h. abbasdokht associate professor, shahrood university of technology, shahrood, iran m.r. edalatpisheh ph.d. student, queen’s land university, australia

in order to study of the effect of priming and salinity on physiological and chemical characteristics of wheat(triticum aestivum l.), an experiment was carried out at the experimental farm of shiraz university. results showedthat primed plants significantly reduced its gas exchanges by accelerating senescence under a series of salt stress,which became more serious along with the increasing of s...

امام, یحیی, دیانت, زهرا, دیانت, زهره, مقصودی, کبری,

In order to evaluate morphological and physiological responses of sorghum (Pegah ‎cultivar) to salt stress (0, 5, 10 and 15 dS/m) and different salicylic acid (SA) levels ‎‎(0, 0.75 and 1.5 mM), an experiment was carried out in research green house of ‎college of Agriculture Shiraz University during 2012 using a factorial as randomized ‎complete block design with four replications. The results ...

2011
Zeng Tao Yanjun Kou Hongbo Liu Xianghua Li Jinghua Xiao Shiping Wang

Although allelic diversity of genes has been shown to contribute to many phenotypic variations associated with different physiological processes in plants, information on allelic diversity of abiotic stress-responsive genes is limited. Here it is shown that the alleles OsWRKY45-1 and OsWRKY45-2 play different roles in abscisic acid (ABA) signalling and salt stress adaptation in rice. The two al...

.Salt stress is one of the major abiotic stresses especially in arid and semi-arid regions. This investigation was conducted to evaluate the effects of the salt stress on Ascorbate Peroxidase (APX) and Superoxide Dismutase (SOD) activities in safflower genotypes based in on a factorial experiment as a Completely Randomized Design (CRD) with three replications. The experimental factors were six ...

دولت آبادیان, آریا, شریفی, مظفر, مدرس ثانوی, سیدعلی محمد,

In order to study the effects of salt stress and leaf feeding by ascorbic acid on antioxidant enzyme activity, proline accumulation and lipid peroxidation on leaves and roots of Brassica napus L. cvs. Okapi, an experiment was conducted as a factorial in a completely random design with three replications. Plants were exposed to salt stresses by NaCl solution (200 mM) and foliar were treated by a...

Journal: :علوم گیاهان زراعی ایران 0
فریبا ابویی مهریزی دانشجوی سابق ارشد علیرضا عباسی استادیار دانشگاه تهران علی اکبر شاه نجات بوشهری استاد، پردیس کشاورزی و منابع طبیعی کرج، دانشکده علوم زراعی و دامی، گروه زراعت و اصلاح نباتات، تخصص: ژنتیک مولکولی و مهندسی ژنتیک بهمن یزدی صمدی استاد دانشگاه تهران هوشنگ علیزاده استادیار دانشگاه تهران

abiotic stress are the main factors causing low growth and yield in crops. osmotic stress is an important stress and in case of salinity stress is presuming at the first step. there are different experimental and computational methods to study plant response to stress and lead to better understanding of mechanism involved in these conditions and improvement of plant tolerance to stress. upstrea...

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