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Effect of Soil drought on ethylene evolution, polyamine accumulation and cell membrane in flag leaf of winter wheat

Xu Zhenzhu, Yu Zhenwen, Qi Xinhua, Yu Songlie

Department of Agronomy, Shangdong Agricultural University. Taian 271018,Shandong

Abstract

Ethylene evolution and polyamine contents increased as soil drought developed only in the growing flag leaf of wheat, but the contents of spermine and spermidine decreased at the end of grain filling. The degree of lipid peroxidation decreased when flag leaves were sprayed with spermidine solution (500mg/L). With the development of soil drought, malondialdehyde contents and plasmalemma permeability increased. Under soil drought, linolenic acid content decreased, resulting in low index of unsaturated fatty acid, other fatty acid didn^t change significantly. Under severe water stress, The activity of peroxidase increased slightly.

Key words: Soil drought;Winter wheat;Ethylene;Polyamine;Membrane lipid peroxidation; Fatty acid

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Citing This Article：

Xu Zhenzhu, Yu Zhenwen, Qi Xinhua, Yu Songlie. Effect of Soil drought on ethylene evolution, polyamine accumulation and cell membrane in flag leaf of winter wheat. Acta Physiol Sin 1995; 47 (3): (in Chinese with English abstract).