Exogenously applied ascorbic acid alleviates salt-induced oxidative stress in wheat

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

doi:10.1016/j.envexpbot.2007.10.018

Cited by 336 publications

(182 citation statements)

References 34 publications

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“…It is clear that high level of endogenous AsA is essential effectively to maintain the antioxidant system that protects plants from oxidative damage due to abiotic and biotic stresses (Shigeoka et al, 2002). Salt induces a decrease in AsA content in wheat at the vegetative stage (Sairam et al, 2005) and at the reproductive stage (Athar et al, 2008). In agreement with this observation, our study showed that salinity induces a decrease in AsA in the two durum wheat cultivars particularly in the cv.…”

Section: Discussionsupporting

confidence: 81%

Comparison of an antioxidant system in tolerant and susceptible wheat seedlings in response to salt stress

Feki

Tounsi

Brini

2018

Span. j. agric. res.

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It has been demonstrated previously that the physiological and molecular analysis of seedlings of the tolerant (Om Rabia3) and susceptible (Mahmoudi) Tunisian wheat genotypes were different at short and long-term response to salinity. In this study, we examined the antioxidant defence system in seedlings of these two cultivars at short-term response to different NaCl concentrations. The findings showed that high salinity tolerance of cv. Om Rabia3, as manifested by lower decrease in its dry biomass, was associated with lower malondialdehyde and hydrogen peroxide contents, lower accumulation of the superoxide (O 2 -) in the roots and the shoots, and also lower decrease in ascorbate content than those in cv. Mahmoudi. Moreover, the expression of some genes coding for antioxidant enzymes such as the catalase, the superoxide dismutase and the peroxidase were enhanced by NaCl stress especially in the salt-tolerant cultivar. In parallel, their activities were increased in response to the same condition of stress and especially in the cv. Om Rabia3. Taken together, these data suggested that the capacity to limit oxidative damage is important for NaCl tolerance of durum wheat.

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Section: Discussionsupporting

confidence: 81%

Comparison of an antioxidant system in tolerant and susceptible wheat seedlings in response to salt stress

Feki

Tounsi

Brini

2018

Span. j. agric. res.

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“…Therefore, elevated levels of endogenous AsA in plants are necessary to offset oxidative stress in addition to regulating other plant metabolic processes (Smirnoff 2000;Athar et al 2008). Results obtained in this study reveal that Cd stress caused a sharp decrease in AsA content (Fig.…”

Section: Discussionmentioning

confidence: 65%

Up-regulation of antioxidant and glyoxalase systems by exogenous glycinebetaine and proline in mung bean confer tolerance to cadmium stress

Hossain

Hasanuzzaman

Fujita

2010

Physiol Mol Biol Plants

373

162

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“…In the current study, external supply of AsA appreciably enhanced growth parameters (shoot, root lengths, shoot, and root fresh and dry weights). Being a growth promoter, AsA positively influences the mineral uptake and diminishes the adverse effect of abiotic stresses (Wu and Zhang, 2002;Sheteawi, 2007;Athar et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

Alleviating Effect of Exogenous Application of Ascorbic Acid on Growth and Mineral Nutrients in Cadmium Stressed Barley (Hordeum vulgare) Seedlings

Ullah¹,

Javed²,

Wahid³

et al. 2015

IJAB

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An experiment was carried out in sand-filled pots under normal temperature (28±2ºC) to assess the role of exogenously applied ascorbic acid in alleviating the effect of cadmium (Cd) stress on four barley (Hordeum vulgare L.) genotypes (Jau-83, Jau-87, Paidar 91 and Haider 93). After germination, seedlings were exposed to different Cd concentrations (0, 100, 300, 500 and 700 µM CdCl2) along with AsA (200 mg L -1 ) and grown for 15 days. The results suggested that exposure to increased Cd levels caused a significant reduction in growth and mineral nutrients contents of barley seedlings. However, there was a noticeable difference in the effect of Cd on mineral concentrations among genotypes and the difference mainly coincided with differential accumulation of Cd in the shoot and root tissues. When AsA was applied to Cd-stressed plants, it decreased Cd accumulation in shoots and roots and also showed partial reversal of Cd stress effects. It was also observed that at the same Cd concentrations Cd tolerance index of Jau-83 was the highest among the four barley genotypes, indicating that Jau-83 had lower Cd contents in roots may be more tolerant to Cd stress. The application of AsA was effective in reducing the toxicity of increased Cd by reducing the root or shoots Cd contents, as well as by improving the seedling growth attributes and the mineral nutrients in barley.

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Exogenously applied ascorbic acid alleviates salt-induced oxidative stress in wheat

Cited by 336 publications

References 34 publications

Comparison of an antioxidant system in tolerant and susceptible wheat seedlings in response to salt stress

Comparison of an antioxidant system in tolerant and susceptible wheat seedlings in response to salt stress

Up-regulation of antioxidant and glyoxalase systems by exogenous glycinebetaine and proline in mung bean confer tolerance to cadmium stress

Alleviating Effect of Exogenous Application of Ascorbic Acid on Growth and Mineral Nutrients in Cadmium Stressed Barley (Hordeum vulgare) Seedlings

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