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Glutathione S-Transferase Activity in Cotton Plants and Callus Subjected to Salt Stress

M.C. Lucas, T. Fowler, D.R. Gossett


Callus tissue of Coker 312 adapted to grow at 150 mM and 250 mM NaCl showed significant increases of glutathione S-transferase activity (GST) compared to callus tissue grown at 0 mM NaCl. Greenhouse-grown salt-tolerant Acala 1517-88 plants treated with either O or 150 mM NaCl were also analyzed for differences in GST activity. The Acala 1517-88 exhibited increased levels of GST when stressed. The NaCl-induced increase in the activity of GST suggests that this enzyme may increase the cell's ability to respond to lipid peroxidation induced by salt stress.

Reprinted from Proceedings of the 1996 Beltwide Cotton Conferences pp. 1177 - 1178
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998