نتایج جستجو برای: drought and salinity stress

تعداد نتایج: 16908325  

Lycium depressum L. is the only native tree-like life-form species inhabited in saline and alkaline regions of Turkmen Sahra located at Golestan province in Northern Iran. During past years, efforts have been made to increase vegetation cover of the area by cultivation of L. depressum L. to reduce water and wind erosions and dust storm challenges; however, the cultivation of t...

2016
Jiajia Hou Pingping Jiang Shoumei Qi Ke Zhang Qiuxia He Changzheng Xu Zhaohua Ding Kewei Zhang Kunpeng Li

Salinity and drought severely affect both plant growth and productivity, making the isolation and characterization of salinity- or drought-inducible promoters suitable for genetic improvement of crop resistance highly desirable. In this study, a 1468-bp sequence upstream of the translation initiation codon ATG of the promoter for ZmGAPP (maize Type-II H+-pyrophosphatase gene) was cloned. Nine 5...

2017
Md. Shahadat Hossain Mirza Hasanuzzaman Md. Ekramul Hoque Homayra Huq Motiar Rohman

This experiment was conducted to study the role of glyoxalase system in conferring salinity and drought stress in Brassica spp. Two Brassica genotypes viz. BARI Sharisha16 (tolerant) and Tori7 (susceptible) were exposed to salt (16 dS m) and drought for 2, 4 and 6 days. The comparative study of two Brassica genotypes under salinity and drought stresses revealed that BARI Sharisha16 is more tole...

Journal: :Journal of experimental botany 2012
Julia Krasensky Claudia Jonak

Plants regularly face adverse growth conditions, such as drought, salinity, chilling, freezing, and high temperatures. These stresses can delay growth and development, reduce productivity, and, in extreme cases, cause plant death. Plant stress responses are dynamic and involve complex cross-talk between different regulatory levels, including adjustment of metabolism and gene expression for phys...

Journal: :تولید گیاهان زراعی 0

this study was aimed to assess of priming effects on soluble proteins and antioxidant enzymes of as a nigella sativa medicinal plant under different levels of salinity and drought. two greenhouse factorial experiments with three replicated randomized complete block design were conducted.treatments included five levels of priming (potassium nitrate 1% and salicylic acid 0.2 mm in 6 hours, potass...

Journal: :international journal of advanced biological and biomedical research 0
mohammad hadi jorenush department of natural resources, institute of applied scientific higher education of jahad-e agriculture, iran mohsen rajabi department of medicinal plants, applied scientific university of jahad-e agriculture, hamedan, iran

objective: germination is one of the most important stages of plants growth that affected by environmental stresses, especially drought and salinity. methods: in order to study of artichoke germination under different levels of salinity and drought, two separate experiments were performed. the four levels of salinity by nacl (0, 50, 100, 150 mm) with three replications and five levels of drough...

Journal: :Plant physiology 2006
Chui E Wong Yong Li Aurelie Labbe David Guevara Paulo Nuin Brett Whitty Claudia Diaz G Brian Golding Gordon R Gray Elizabeth A Weretilnyk Marilyn Griffith Barbara A Moffatt

Thellungiella, an Arabidopsis (Arabidopsis thaliana)-related halophyte, is an emerging model species for studies designed to elucidate molecular mechanisms of abiotic stress tolerance. Using a cDNA microarray containing 3,628 unique sequences derived from previously described libraries of stress-induced cDNAs of the Yukon ecotype of Thellungiella salsuginea, we obtained transcript profiles of i...

2016
Hongli Zhang Jiajia Hou Pingping Jiang Shoumei Qi Changzheng Xu Qiuxia He Zhaohua Ding Zhiwu Wang Kewei Zhang Kunpeng Li

Salinity and drought often affect plant growth and crop yields. Cloning and identification of salinity and drought stress inducible promoters is of great significance for their use in the genetic improvement of crop resistance. Previous studies showed that phosphatidylinositol synthase is involved in plant salinity and drought stress responses but its promoter has not been characterized by far....

2016
Mingzhu Dou Sanhong Fan Suxin Yang Rongfeng Huang Huiyun Yu Xianzhong Feng

Ectopic expression of the MYB transcription factor of AmROSEA1 from Antirrhinum majus has been reported to change anthocyanin and other metabolites in several species. In this study, we found that overexpression of AmRosea1 significantly improved the tolerance of transgenic rice to drought and salinity stresses. Transcriptome analysis revealed that a considerable number of stress-related genes ...

Journal: :آب و خاک 0
علی شهیدی محمدجواد نحوی نیا مسعود پارسی نژاد عبدالمجید لیاقت

abstract various mathematical water uptake models have been introduced for plants response to combined drought and salinity stress. the reduction functions are classified as additive, multiplicative and conceptual models. in this study six different macroscopic reduction functions, namely; van genuchten (additive and multiplicative), dirksen et al., van dam et al, skaggs et al and homaee were e...

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