Fusarium mangiferae侵染对凯特杧内源激素含量的影响  

Effects of Fusarium mangiferae on Endogenous Hormone Contents in Mangifera indica Keitt

作　　者：柳凤[1,2] 欧雄常[1] 詹儒林[1] 韦继光[2] 常金梅[1] 

机构地区：[1]中国热带农业科学院南亚热带作物研究所农业部热带果树生物学重点实验室,广东湛江524091 [2]广西大学农学院,广西南宁530004

出　　处：《热带作物学报》2015年第7期1238-1241,共4页Chinese Journal of Tropical Crops

基　　金：中央级非盈利性研究机构基本科研业务费研究专项(No.1630062014007);农业行业科研专项(No.201203092-3);四川省科技计划项目(No.2014NZ0026)

摘　　要：为探讨杧果感染畸形病过程中顶芽内源激素含量的变化规律,以凯特杧为试验材料,测定了接种病菌(Fusarium mangiferae)后顶芽内生长素(IAA)、赤霉素(GA3)和脱落酸(ABA)含量的变化情况。结果表明:接种病菌后,杧果顶芽内赤霉素和生长素含量急速上升,且在整个试验阶段明显高于健康处理,脱落酸含量在试验后期不断升高;分析发现,F.mangiferae侵染能够显著影响杧果顶芽内源激素的含量,改变IAA/ABA和GA3/ABA的平衡,致使杧果的生长发育受到影响,进而引发畸形病的产生。In order to study the effect of pathogens causing malformation on the endogenous hormone contents in Mangifera indica Keitt, we detected the changes of IAA, GA3 and ABA contents in buds affected by Fusarium maangiferae. The results showed that the contents of endogenous IAA and GA3 rose rapidly and were significantly higher than the control at at whole period after inoculation; ABA content rose at the late period after inoculation. The pathogens could affect the contents of IAA, GA3 and ABA in mango significantly and disturbed the balance of IAA/ABA and GA3/ABA, which affected the growth and development of mango, related to the mango malformation disease causing.

关 键 词：杧果 畸形病 FUSARIUM mangiferae 内源激素 

分 类 号：S667.7[农业科学—果树学]