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Effects of NaCl stress on H~(+)-ATPase and H~(+)-PPase activities of tonoplast-enriched vesicles isolated from the roots of salt-tolerant mutant of wheat and its wild type

Guo Fangqing, Huang Hao, Tang Zhangcheng

Shanghai Institute of Plant Physiology,Chinese Academy of Sciences.Shanghai 200032

Abstract

The analyzing results of characterization of tonoplast polypeptides showed that the 58 kD peptide was absent in wild type under control condition and salt stress a small amount of this peptide was found. The mutant had a relatively mire amount of the 58 kD peptide under control condition or salt stress treatment, but its 29 kD peptide disappeared under control condition. We discussed the relationship between the enhancement of H~(+)-translocating abilities and the increase of H~(+)-ATPase and H~(+)-PPase activities in the tonoplast-enriched vesicles isolated from roots of the mutant and wild type treated with salt stress.

Key words: Wheat;NaCl stress;Tonoplast;H~(+)-ATPase;H~(+)-PPase

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Citing This Article：

Guo Fangqing, Huang Hao, Tang Zhangcheng. Effects of NaCl stress on H~(+)-ATPase and H~(+)-PPase activities of tonoplast-enriched vesicles isolated from the roots of salt-tolerant mutant of wheat and its wild type. Acta Physiol Sin 1999; 51 (4): (in Chinese with English abstract).