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乙烯在豌豆植株顶端优势中的作用

李春俭

中国农业大学植物营养系.北京 100094

摘要

用人工合成细胞分裂素BAP和CPPU处理豌豆植株叶腋可诱导处理部位侧芽的生长,同时伴有大量乙烯产生;用乙烯合成抑制剂AVG处理或植株去顶同样可导致侧芽生长,但乙烯释放量却明显少于对照,表明侧芽的生长与乙烯释放量的多少无关。而3种物质处理后诱导产生的侧芽的数目、长度及其鲜重与处理部位内源IAA含量的增加则呈正相关。

关键词： 豌豆; 乙烯; 顶端优势; 细胞分裂素; AVG

Role of ethylene in apical dominance of pea plants

Li Chunjian

Department of Plant Nutrition,China Agricultural University.Beijing 100094

Abstract

The application of synthetic cytokinin BAP and CPPU to the second node of pea plants (Pisum sativum L.) stimulated the growth of lateral buds, and a concomitant increase of ethylene production. Decapitation or treatment with AVG also induced growth of the lateral buds, but ethylene production was even less than the control. The number, length and weight of lateral buds induced by treatments with CPPU, BAP and AVG were positively correlated to the increase of the concentration of endogenous IAA in the treated tissues. The results demonstrated that ethylene was not directly involved in apical dominance.

Key words: Pea;Ethylene;Apical dominance;Cytokinin;AVG

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引用本文：

李春俭. 乙烯在豌豆植株顶端优势中的作用[J]. 生理学报 1997; 49 (3): .

Li Chunjian. Role of ethylene in apical dominance of pea plants. Acta Physiol Sin 1997; 49 (3): (in Chinese with English abstract).