【摘要】 根据雷竹笋期鞭侧芽吲哚乙酸氧化酶和过氧化物酶的测定分析表明，竹鞭侧芽的萌发受营养、水分等构成组织物质供给的限制，芽体间产生营养争夺，通过刚哚乙酸的氧化酶活性变化，调节吲哚乙酸含量，达到了影响侧芽生长的目的，在萌发芽中，吲哚乙酸氧化酶活性变化和芽体活跃生长区的出现相关；从竹鞭和竹鞭侧芽的过氧化物酶活性分析表明，过氧化物酶系统不仅在生长素的氧化降解中起作用，而且可能在木质素的生物合成或其它生理过程中起重要作用。更多还原

【Abstract】 Based on analysis of IAA oxidase and peroxidase in rhizome during shooting period of ph. praecox f. prevernalis,the results indicated the sprouting of rhizom bud was effected by nutrients,water etc,and the nutrition flight among the bud took place, which adjusted the content of IAA through the enzymatic activity of oxidase and peroxidase. Fromthe analysis of the enzymatic activity of peroxidase in rhizome bud,it was showed that peroxidase system played an important part not only in degrade reaction of growth hormone (GE)but also in lignin biosynthesis or other physiogical processes更多还原