关键词: 钙调素, 乙烯, 果实, 梨

Abstract: Calmodulin (CaM) contents in flesh and seeds, ethylene (C₂H₄) production in peel, flesh and core during pear (Pyrus pyriforlia cv. Huanghua and Xiangnan) fruit storage were analyzed. The main results were as follows:(1) C₂H₄ production of Huanghua fruit and its different parts were higher than those of Xiangnan, and the time when ethylene peaks occurred in Huanghua were earlier than those of Xiangnan; (2) The sequences when ethylene peak occurred in tissues of two cultivars were the same, and the time when ethylene peak of core occurred was the earliest while that of peal was the latest; (3) The CaM content increased with the increasing of ethylene production, and after the ethylene concentration reached its peak, the CaM content decreased and fruit entered senescence process.

Key words: CaM, ethylene, fruit, pear