Changes in endogenous hormone concentrations during inflorescence induction and development in pineapple (Ananas comosus cv. Smooth Cayenne) by ethephon

文献类型： 外文期刊

第一作者： Liu Sheng-hui

作者： Liu Sheng-hui;Zang Xiao-ping;Sun Guang-ming;Liu Sheng-hui;Zang Xiao-ping;Sun Guang-ming

作者机构：

关键词： Pineapple;inflorescence initiation;inflorescence development;endogenous hormone

期刊名称：AFRICAN JOURNAL OF BIOTECHNOLOGY （ 影响因子：0.573； 五年影响因子：0.794 ）

ISSN： 1684-5315

年卷期： 2011 年 10 卷 53 期

页码：

收录情况： SCI

摘要： This study investigated the changes of five endogenous hormones in the shoot apex and the white bases of D-leaf during the inflorescence induction and development of 'Smooth Cayenne' pineapple, using 14-month-old pot-grown plants as material and ethephon as flower forcing agent. Results showed that application of ethephon increased the level of endogenous ethylene (C(2)H(4)), abscisic acid (ABA) and 2-isopentyl adenine (2-iP) while it decreased the concentration of indole-3-acetic acid (IAA), gibberellic acid (GA(3)) and zeatin (ZT), and led to the transition of vegetative growth to inflorescence initiation. After inflorescence initiation, the contents of C(2)H(4), ABA and 2-iP declined but the contents of IAA, ABA and ZT increased. These results indicated that low levels of IAA, GA(3) and ZT and high levels of C(2)H(4), ABA and 2-iP facilitated inflorescence initiation, while high levels of ZT, IAA and GA(3) and low levels of C(2)H(4) and ABA facilitated inflorescence development.

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