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Significance of Sulphur nutrition against metal induced oxidative stress in plants

Author(s): Mohd Mazid | Khan Zeba H. | Saima Quddusi | Taqi Ahmed Khan | Firoz Mohammad

Journal: Journal of Stress Physiology & Biochemistry
ISSN 1997-0838

Volume: 7;
Issue: 3;
Start page: 165;
Date: 2011;
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Keywords: Xylem transport | phloem transport | oxidative stress | translocation | antioxidant | chelation

Sulphur (S) is available to plants as sulphate (SO42-) in the soil to the roots and as gaseous SO2 in the atmosphere to the shoots. Of all the macronutrient, S is perhaps the nutrient which has attracted the most attention in soil science and plant nutrition due to its potential defensive characteristics to pests, good nutritive potentiality to crops and its relative immobility in the soil-plant system. This review highlights the mechanisms of uptake and translocation of S from soil and its transport in xylem and phloem tissues of plants. Moreover, it also throws new insights, have led us to revisit the hypothesis of S chelation in reference to oxidative stress induced by heavy metals sequestration.
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