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缺硼与低温对黄瓜幼苗一些生理反应的影响

摘要

营养液培养试验表明,缺硼明显降低黄瓜幼苗植株的生长量,植株叶片细胞质膜K~(+)的渗漏增加,细胞结构受损。此外,叶片中蔗糖和还原糖都明显积累。缺硼的上述反应在低温胁迫时表现更为明显。充分供硼可以减轻低温对细胞膜的伤害。

关键词： 黄瓜; 硼; 质膜透性; 碳水化合物

Effects of boron-deficiency and low temperature on some physiological responses of cucumber seedlings

Abstract

Solution culture was conducted to study the effects of boron deficiency and low temperature on some physiological responses of cucumber (Cucumis sativus L. cv. Zhongnong No. 1101) seedlings. The results showed that under the boron-deficient condition the growth of seedling was inhibited, the leakage of K~(+) from plasma membrane of leaf cells was enhanced, and the cell inner structure was damaged. All of these changes were more pronounced at low temperature. Furthermore, the contents of sucrose and reducing sugar in primary leaves were also accumulated.

Key words: Cumuber;Boron;The integrity of plasma membranes;Carbohydrate

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引用本文：

. 缺硼与低温对黄瓜幼苗一些生理反应的影响[J]. 生理学报 1998; 50 (1): .

. Effects of boron-deficiency and low temperature on some physiological responses of cucumber seedlings. Acta Physiol Sin 1998; 50 (1): (in Chinese with English abstract).