Inducing Salt Tolerance in Wheat by Exogenously Applied Ascorbic Acid through Different Modes

Athar, Habib‐ur‐Rehman; Khan, Ameer; Ashraf, Muhammad

doi:10.1080/01904160903242334

Cited by 73 publications

(38 citation statements)

References 28 publications

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“…ratios and ultimately caused better biomass production. Such improvement in plant salt tolerance due to exogenous AsA has been reported in some earlier studies (Athar et al 2008(Athar et al , 2009Dolatabadian and Jouneghani 2009;Farouk 2011;Ejaz et al 2012). Furthermore, this increase in maize plant biomass was negatively associated with Na ?…”

Section: Discussionmentioning

confidence: 66%

Modulations in plant water relations and tissue-specific osmoregulation by foliar-applied ascorbic acid and the induction of salt tolerance in maize plants

et al. 2015

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Plant water status and cellular osmotic adjustments play a key role in the salt tolerance of plants. An experiment was conducted to assess the influence of foliarapplied ascorbic acid (AsA) on the plant water relations, cellular osmotic adjustments, uptake, and accumulation of different ions in the two high yielding maize cultivars (Agaiti-2002 and EV-1098) at early growth stage under salt stress (120 mM NaCl). Salt stress altered growth, water relation attributes, osmolytes accumulation, and decreased the uptake of K ? , Ca 2? , P, and N, while increased the uptake and accumulation of Na ? in different plant parts (leaf, stem, and root). Exogenous AsA increased the accumulation of AsA in different plant parts, particularly in leaves and roots. Moreover, AsA application resulted in the accumulation of proline and glycinebetaine (GB) in the roots and leaves of both maize cultivars when under salt stress. Foliar application of AsA also increased the uptake of minerals such as K ? , Ca 2? , P, and N and decreased the uptake and accumulation of Na ? in different plant parts. Taken together, the AsA-induced enhanced accumulation of osmolytes (GB and proline) and AsA increased the K ? / Na ? ratio, and more accumulation of beneficial nutrients in the roots and leaves enhanced water uptake from soil and reduced the negative effects of Na ? in the salt-stressed maize plants. The results suggested that foliar-applied AsA either accelerated the tissue-specific translocation of AsA or altered the de novo synthesis of AsA to mitigate the adverse effects of salinity in maize plants.

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Section: Discussionmentioning

confidence: 66%

Modulations in plant water relations and tissue-specific osmoregulation by foliar-applied ascorbic acid and the induction of salt tolerance in maize plants

et al. 2015

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“…Apart from the dose, mode of application is also a factor to initiate the protective effect by exogenous AsA. In their study Athar et al [115] found differential effects when…”

Section: Antioxidantmentioning

confidence: 99%

Approaches to Enhance Salt Stress Tolerance in Wheat

Hasanuzzaman¹,

Rahman²,

Anee³

et al. 2017

Wheat Improvement, Management and Utilization

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Wheat is consumed as a staple food by more than 36% of world population. Wheat provides nearly 55% of the carbohydrates and 20% of the food calories consumed globally. The productivity of wheat is often adversely affected by salt stress which is associated with decreased germination percentage, reduced growth, altered reproductive behavior, altered enzymatic activity, disrupted photosynthesis, damage of ultrastructure of cellular components, hormonal imbalance, and oxidative stress. Different approaches have been adopted to improve plant performance under salt stress: introduction of genes, screening of better performing genotypes, and crop improvement through conventional breeding methods which are often not so successful and suitable due to time-consuming or reduction of plant vigor with the succession of time. Uses of exogenous phytoprotectants, seed priming, nutrient management, and application of plant hormone are convenient for improving plant performances. This chapter reviews the mechanism of damage of wheat plants under salt stress and also the recent approaches to improve growth and productivity of salt-affected wheat plants emphasizing the use of exogenous phytoprotectants from the available literature.

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“…AsA regulates stress response as a result of a complex sequence of biochemical reactions such as activation or suppression of key enzymatic reactions, induction of stress responsive proteins synthesis, and the production of various chemical defense compounds (Khan et al 2011). The protective role of AsA in plant cells from the adverse effects of salt stress was described by Athar et al (2009) and Younis et al (2010).…”

Section: Introductionmentioning

confidence: 98%

Effects of ascorbic acid and gibberellin A3 on alleviation of salt stress in common bean (Phaseolus vulgaris L.) seedlings

et al. 2012

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Salinity, a severe environmental factor, has limited the growth and productivity of crops. Many compounds have been applied to minimize the harmful effects of salt stress on plant growth. An experiment was conducted to investigate the interactive effects of exogenous ascorbic acid (AsA) and gibberellic acid (GA 3 ) on common bean (Phaseolus vulgaris L. cv. Naz) seedlings under salt stress. The changes of growth parameters, photosynthetic and non-photosynthetic pigments and potassium content showed that the addition of 1 mM AsA and/or 0.05 mM GA 3 considerably decreased the oxidative damage in common bean plants treated with 200 mM NaCl. The NaCl-stressed seedlings exposed to AsA or GA 3 , specifically in their combination, exhibited an improvement in sodium accumulation in both roots and shoots, as compared to NaCl-treated plants. NaCl treatment increased hydrogen peroxide (H 2 O 2 ) content and lipid peroxidation indicated by accumulation of malondialdehyde (MDA), whereas the interaction of AsA with GA 3 decreased the amounts of MDA and H 2 O 2 . In the meantime, interactive effect of these substances enhanced protein content and the activity of the antioxidant enzyme, guaiacol peroxidase, in common bean plants under salt stress. It was concluded that synergistic interaction between AsA and GA 3 could alleviate the adverse effects of salinity on P. vulgaris seedlings.

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Inducing Salt Tolerance in Wheat by Exogenously Applied Ascorbic Acid through Different Modes

Cited by 73 publications

References 28 publications

Modulations in plant water relations and tissue-specific osmoregulation by foliar-applied ascorbic acid and the induction of salt tolerance in maize plants

Modulations in plant water relations and tissue-specific osmoregulation by foliar-applied ascorbic acid and the induction of salt tolerance in maize plants

Approaches to Enhance Salt Stress Tolerance in Wheat

Effects of ascorbic acid and gibberellin A3 on alleviation of salt stress in common bean (Phaseolus vulgaris L.) seedlings

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