نتایج جستجو برای: abiotic stresses

تعداد نتایج: 53215  

2012
Sávio Pinho dos Reis Aline Medeiros Lima Cláudia Regina Batista de Souza

Abiotic stresses such as extremes of temperature and pH, high salinity and drought, comprise some of the major factors causing extensive losses to crop production worldwide. Understanding how plants respond and adapt at cellular and molecular levels to continuous environmental changes is a pre-requisite for the generation of resistant or tolerant plants to abiotic stresses. In this review we ai...

2017
Andrea Chini Walid Ben-Romdhane Afif Hassairi Mourad A M Aboul-Soud

Plant phenotypic plasticity determines plant adaptation to changing environments and agricultural productivity. Phytohormones are essential plant signalling molecules regulating this plasticity through complex signalling networks. Jasmonates (JAs) are key phytohormones regulating many aspects of growth, development and defence responses. An important role of JAs in tolerance to abiotic stresses...

Journal: :Trends in plant science 2016
Andreas Savvides Shawkat Ali Mark Tester Vasileios Fotopoulos

Crop plants are subjected to multiple abiotic stresses during their lifespan that greatly reduce productivity and threaten global food security. Recent research suggests that plants can be primed by chemical compounds to better tolerate different abiotic stresses. Chemical priming is a promising field in plant stress physiology and crop stress management. We review here promising chemical agent...

Journal: :Plant physiology 2014
Rafi Shaik Wusirika Ramakrishna

Abiotic and biotic stress responses are traditionally thought to be regulated by discrete signaling mechanisms. Recent experimental evidence revealed a more complex picture where these mechanisms are highly entangled and can have synergistic and antagonistic effects on each other. In this study, we identified shared stress-responsive genes between abiotic and biotic stresses in rice (Oryza sati...

2015
Navjyoti Chakraborty Navneet Singh Kanwaljeet Kaur Nandula Raghuram

G-protein signaling components have been implicated in some individual stress responses in Arabidopsis, but have not been comprehensively evaluated at the genetic and biochemical level. Stress emerged as the largest functional category in our whole transcriptome analyses of knock-out mutants of GCR1 and/or GPA1 in Arabidopsis (Chakraborty et al., 2015a,b). This led us to ask whether G-protein s...

2017
Xiaoyi Zhu Chunqian Huang Liang Zhang Hongfang Liu Jinhui Yu Zhiyong Hu Wei Hua

Drought and heat stress are major causes of lost plant crop yield. In the future, high levels of CO2, in combination of other abiotic stress factors, will become a novel source of stress. Little is known of the mechanisms involved in the acclimation responses of plants to this combination of abiotic stress factors, though it has been demonstrated that heat shock transcription factors (Hsfs) are...

Journal: :genetics in the 3rd millennium 0
mahya bahmani reza maali-amiri

plants face many biotic and abiotic stresses at the same time during their growth under field conditions. plants responses toward combined stresses are often more complex than their responses to one type of stress in a way that the results of these responses are called as cross tolerance. this mixture of stresses activates specific models of gene expression that causes special signaling network...

2015
Arjun Sham Khaled Moustafa Salma Al-Ameri Ahmed Al-Azzawi Rabah Iratni Synan AbuQamar

Plants have evolved with intricate mechanisms to cope with multiple environmental stresses. To adapt with biotic and abiotic stresses, plant responses involve changes at the cellular and molecular levels. The current study was designed to investigate the effects of combinations of different environmental stresses on the transcriptome level of Arabidopsis genome using public microarray databases...

2016
Vemanna S Ramu Anjugam Paramanantham Venkategowda Ramegowda Basavaiah Mohan-Raju Makarla Udayakumar Muthappa Senthil-Kumar

In nature plants are often simultaneously challenged by different biotic and abiotic stresses. Although the mechanisms underlying plant responses against single stress have been studied considerably, plant tolerance mechanisms under combined stress is not understood. Also, the mechanism used to combat independently and sequentially occurring many number of biotic and abiotic stresses has also n...

2014
Karine Gallardo Pierre-Emmanuel Courty Christine Le Signor Daniel Wipf Vanessa Vernoud

Drought and salinity are two frequently combined abiotic stresses that affect plant growth, development, and crop productivity. Sulfate, and molecules derived from this anion such as glutathione, play important roles in the intrinsic responses of plants to such abiotic stresses. Therefore, understanding how plants facing environmental constraints re-equilibrate the flux of sulfate between and w...

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