摘要
为了寻找不污染环境的“生物合理途径”新型杀虫剂，研究了马尾松毛虫和荔蝽体内的多酚氧化酶。发现马尾松毛虫幼虫的多酚氧化酶活力与虫龄大小成正相关。多来宝（ｅｔｏｆｅｎｐｒｏｘ）处理１００ｍｉｎ后，５龄幼虫的多酚氧化酶为正常虫体的３．６倍。荔蝽３龄若虫经乙醇处理１０ｍｉｎ后，多酚氧化酶活力为正常虫体的２．７倍；荔蝽３龄若虫经菟丝子（Ｃｕｓｃｕｔａｊａｐｏｎｉｃａ）和夹竹桃（Ｎｅｒｉｕｍｉｎｄｉｃｕｍ）的混合醇提液处理６０ｍｉｎ，多酚氧化酶活力为正常虫体的２．４倍、经乙醇单独处理荔蝽３龄若虫后多酚氧化酶活力为正常虫体的２．７倍。
The activities of polyphenol oxidase in the Massonpine caterpiliar (Dendrolimus punctatus Walker)showed positive correlation with age increase in instars. After treatal with etofenprox, the activity of polyphenol oxidase of fifth instar larvae was 3. 6 times that of nomal larvae. After treating with the extracts of Cuscuta japonica Choisy and Nerium indicum Mill respectively, the activity of polyphenol oxidase in the bugs(Tessaratoma popillosa Drury) was 2. 4 times that of normal larvae.
出处
《广西科学》
CAS
1996年第2期48-50,共3页
Guangxi Sciences
关键词
马尾松
毛虫
荔蝽
多酚氧化酶
杀虫剂
Dendrolimus punctatus
Tessaratoma popillosa
Polyphenol oxidase
