Biotechnology of Plant Osmotic Stress Tolerance Physiological and Molecular Considerations

Wang, Wang‐Xia; Vinocur, Basia; Shoseyov, O.; Altman, Arie

doi:10.17660/actahortic.2001.560.54

Cited by 181 publications

(90 citation statements)

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“…The damage effects of soil water deficit (SWD) include arrays of morphological, physiological, biochemical and molecular changes (Wang et al, 2001). Meanwhile, SWD often causes oxidative stress, which imposes the origin reaction of reactive oxygen species (ROS), such as hydrogen peroxide (H 2 O 2 ) and superoxide anion radical (O 2…”

Section: Introductionmentioning

confidence: 99%

Increased Tolerance of Citrus (<i>Citrus tangerina</i>) Seedlings to Soil Water Deficit after Mycorrhizal Inoculation: Changes in Antioxidant Enzyme Defense System

Ni¹,

Zou²,

Wu³

et al. 2013

Not Bot Hort Agrobot Cluj

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Arbuscular mycorrhizal fungi (AMF) can enhance tolerance of plants to soil water deficit, whereas morphological observations of reactive oxygen species and antioxidant enzyme system are poorly studied. The present study thereby evaluated temporal variations of the antioxidant enzyme system in citrus (Citrus tangerina) seedlings colonized by Glomus etunicatum and G. mosseae over a 12-day period of soil drying. Root colonization by G. etunicatum and G. mosseae decreased with soil drying days from 32.0 to 1.0% and 50.1 to 4.5% in 0-day to 12-day, respectively. Compared to the non-AM controls, the AMF colonized plants had significantly lower tissue (both leaves and roots) hydrogen peroxide (H 2 O 2 ) and superoxide anion radical (O 2•-) concentrations during soil water deficit, whereas 1.03-1.92, 1.25-1.84 and 1.18-1.69 times higher enzyme activity in superoxide dismutase, peroxidase (POD) and catalase. In situ leaf H 2 O 2 and root POD location also showed that AM seedlings had less leaf H 2 O 2 but higher root POD accumulation. Furthermore, significantly higher root infection and antioxidant enzymatic activities in plants colonized with G. mosseae expressed than with G. etunicatum during the soil drying. These results demonstrated that the AMs could confer greater tolerance of citrus seedlings to soil water deficit through an enhancement in their antioxidant enzyme defence system whilst an decrease level in H 2 O 2 and O 2•-.

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Section: Introductionmentioning

confidence: 99%

Increased Tolerance of Citrus (<i>Citrus tangerina</i>) Seedlings to Soil Water Deficit after Mycorrhizal Inoculation: Changes in Antioxidant Enzyme Defense System

Ni¹,

Zou²,

Wu³

et al. 2013

Not Bot Hort Agrobot Cluj

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“…Soil salinity is a widespread environmental problem that has been found to affect over 77 million hectares or about 5% of the arable land worldwide (Wang et al, 2001;Athar and Ashraf, 2009). Due to climate change this salt affected areas are increasing day by day and assumed to affect 50% of cultivable land by the midth of 21 st century (Mahajan and Tuteja, 2005).…”

Section: Introductionmentioning

confidence: 99%

Variations of Growth Parameters in Some Aromatic Rice Verities under Salt Stress

Rahman

Naim

Matin

et al. 2017

Bangladesh Agron. J.

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“…Biochemical and physiological parameters in higher plants cultivated in salt or water-deficit conditions have been developed as effective indices for tolerant screening in plant breeding programs (Ashraf and Harris 2004;Parida and Das 2005;Ashraf and Foolad 2007). Both waterdeficit and salt-stresses detrimentally affect plant growth and developmental processes, which have been reported in terms of biochemical, physiological and morphological changes (Hasegawa et al 2000;Wang et al 2001;Parida and Das 2005). The objective of the present study was to identify the morpho-physiological and biochemical changes of bread wheat in response to salinity stress (S1 and S2) levels.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Selected Indian Bread Wheat (Triticum aestivumL.) Genotypes for Morpho-physiological and Biochemical Characterization under Salt Stress Conditions

Singh¹,

Sengar²

2016

Cereal Research Communications

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Wheat is the second most important crop after rice in India and occupies approximately 28.5 million hectare area. Salinity is one of the major factors reducing plant growth and productivity worldwide, and affects about 7% of world's total land area. In India about 6.73 million hectare land area is salt affected. The aim of this study was to investigate the morpho-physiological and biochemical response of wheat to temporal salinity (EC iw = 10.0 dSm -1 ) exposures. Ten wheat genotypes were evaluated in two successive growing seasons (2012)(2013)(2014), with complete randomized design with three replications under both salinity stress and non-stress conditions. The morpho-physiological and biochemical character measured in this investigation, inhibited under both salt stresses (S1 & S2) conditions but much more significantly inhibited under long-term salinity exposure (S2) than S1 because interrupting the metabolic process of plant, resulting in reduced growth and productivity. According to correlation result, selection of high yield genotypes can be done based on plant height (0.649*), tiller plant -1 (0.808**) and leaf area (0.687*). The multivariate morphophysiological and biochemical parameters should be further used to develop salinity tolerance in wheat breeding improvement programmes.

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Biotechnology of Plant Osmotic Stress Tolerance Physiological and Molecular Considerations

Cited by 181 publications

References 0 publications

Increased Tolerance of Citrus (<i>Citrus tangerina</i>) Seedlings to Soil Water Deficit after Mycorrhizal Inoculation: Changes in Antioxidant Enzyme Defense System

Increased Tolerance of Citrus (<i>Citrus tangerina</i>) Seedlings to Soil Water Deficit after Mycorrhizal Inoculation: Changes in Antioxidant Enzyme Defense System

Variations of Growth Parameters in Some Aromatic Rice Verities under Salt Stress

Evaluation of Selected Indian Bread Wheat (Triticum aestivumL.) Genotypes for Morpho-physiological and Biochemical Characterization under Salt Stress Conditions

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