文献类型：期刊文献

中文题名：不同温度处理对‘绿世界’卡特兰花芽分化及内源激素动态变化的影响

英文题名：The Effect of Different Temperature Treatments on Dynamic Changes of Endogenous Hormones and Flower-bud Differentiation of 'Green World' Cattleya

作者：郑宝强[1] 王雁[1] 彭镇华[1] 李莉[2]

第一作者：郑宝强

机构：[1]中国林业科学研究院林业研究所国家林业局林木培育重点实验室;[2]河北农业大学园艺学院

年份：2010

卷号：23

期号：6

起止页码：833-838

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家林业局"948"项目(2006-4-C07;2005-4-37)

语种：中文

中文关键词：卡特兰;花芽分化;温度;新叶;内源激素

外文关键词：Cattleya; flower-bud differentiation; temperature; new leaves; endogenous hormones

分类号：S731

摘要：运用酶联免疫法,测定了卡特兰在花芽分化期经3种不同温度处理其新叶内源激素的动态变化,结果表明:(1)25℃/20℃处理能显著促进花芽分化,30℃/25℃处理花芽能正常分化,35℃/30℃处理抑制花芽分化;(2)25℃/20℃、30℃/25℃处理的新生叶片中赤霉素(GA3)、玉米素(ZR)、脱落酸(ABA)含量增加,吲哚乙酸(IAA)含量减少;35℃/30℃处理抑制新生叶片中GA3、ZR、ABA含量,促进IAA含量,而较低的GA3、ZR、ABA含量和较高水平的IAA含量不利于花芽分化;(3)35℃/30℃处理使GA3/IAA、GA3/ZR的比值处于一个较为稳定的状态,而这种状态不利于花芽分化。保持较低的IAA/ZR与IAA/ABA水平,有利花芽分化的继续进行。
The changes of endogenous hormones in the new leaves of Cattleya during the flower-bud differentiation phase with 3 temperature treatments were determined by ELISA.The results indicated that：（1） The flower-bud differentiation was significantly accelerated under the treatment of 25 ℃/20 ℃,which was normal under treatment of 30 ℃/25 ℃ and inhibited under treatment of 35 ℃/30 ℃;（2） The contents of GA3,ZR,and ABA were promoted while IAA was inhibited under the treatments of 25 ℃/20 ℃ and 30 ℃/25 ℃.It was opposite under the treatment of 35 ℃/30 ℃.The low contents of GA3,ZR,ABA and high content of IAA were not good for flower-bud differentiation;（3） The rates of GA3/IAA and GA3/ZR kept stable under the treatment of 35 ℃/30 ℃ which was not good for flower-bud differentiation.Lower rates of IAA/ZR and IAA/ABA was required to keep the flower-bud differentiation continuing.