化感物质阿魏酸对小麦幼苗内源激素水平的影响  

Effects of allelochemical ferulic acid on endogenous hormone level of wheat seedling.

作　　者：刘秀芬[1] 胡晓军[1] 

机构地区：[1]中国科学院生态环境研究中心,北京100085

出　　处：《中国生态农业学报》2001年第1期86-88,共3页Chinese Journal of Eco-Agriculture

基　　金：国家自然科学基金项目(29675032);"九五"中国科学院重点项目(KZ952-SI-230)

摘　　要：研究了化感物质阿魏酸(FA)在0.25mmol/L、2.50mmol/L浓度下对小麦幼苗内源激素——生长素(IAA)、赤霉素(GA)、细胞分裂素(ZR)和脱落酸(ABA)含量的影响,并测定了培养液中剩余阿魏酸量。结果表明,在2.50mmol/L处理的培养液中剩余阿魏酸量在3～10d内下降最快,14d后98％以上阿魏酸消失。不同浓度阿魏酸对小麦幼苗中4种内源激素的含量表现为0.25mmol/L与对照差别不大,2.50mmol/L样品中的含量均呈上升趋势,但生长素、赤霉素、细胞分裂素在小麦体内大量积累,反而抑制了小麦幼苗的生长,同时诱导脱落酸含量升高。The effects of ferulic acid (FA) on content of endogenous hormone--indole acetic acid (IAA), gib-berellin (GA), cytokinin (ZR) and abscisic acid (ABA) of wheat seedling are studied. The results show that the residual ferulic acid of culture solution was decreased very fast from day three to day ten. After two weeks up to 98% FA were not found. The contents of four endogenous hormones showed insignificant difference at 0.25mmol/L and a increase at 2.50mmol/L comparing with the contrast. The accumulation of IAA, GA and ZR in wheat inhibited the growth of wheat seeding and induced ABA increment.

关 键 词：化感物质 阿魏酸 小麦 幼苗 内源激素 作用机理 

分 类 号：S512.101[农业科学—作物学]