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当前位置: 首页 > 文章 > 抑太保对亚洲玉米螟表皮酚氧化酶及几丁质酶活力的影响 昆虫学报 1992,35 (3) 306-311
Position: Home > Articles > EFFECTS OF ATABRON ON PHENOLOXIDASE AND CHITINASE IN THE CUTICLE OF OSTRINIA FURNACALIS LARVA Acta Entomologica Sinica 1992,35 (3) 306-311

抑太保对亚洲玉米螟表皮酚氧化酶及几丁质酶活力的影响

作  者：
吴刚;尚稚珍
单  位：
福建农学院埴物保护系;南开大学元素有机化学研究所
关键词：
亚洲玉米螟;抑太保;酚氧化酶;几丁质酶
摘  要：
采用饲喂法,抑太保(Atabron,IKI-7899)对亚洲玉米螟Ostrinia furnacalis幼虫的LC_(50)约是灭幼脲Ⅰ号的1/10。体内和体外实验表明,抑太保及灭幼脲Ⅰ号均能导致幼虫表皮酚氧化酶及几丁质酶活力显著增高。与对照相比,饲喂抑太保及灭幼脲Ⅰ号,五龄幼虫表皮酚氧化酶活力分别增长276.00％和28.00％、几丁质酶活力分别增长42.25％和13.62％;腹腔注射抑太保及灭幼脲Ⅰ号,五龄幼虫表皮酚氧化酶活力分别增长74.86％和37.98％、几丁质酶活力分别增长68.18％和28.86％。我们认为,酚氧化酶及几丁质酶活力的增高应是抑太保及灭幼脲Ⅰ号导致玉米螟死亡的重要原因。
译  名：
EFFECTS OF ATABRON ON PHENOLOXIDASE AND CHITINASE IN THE CUTICLE OF OSTRINIA FURNACALIS LARVA
作  者：
WU GANG(Department of Plant. Protection, Fujian Agricultural College, Fuzhou 350002)SHANG ZHI-ZHEN(Institute of Elcmento-organic Chemistry, Nankai Universege, Fuzhou 350002)
关键词：
Ostrinia furnacalis-atabron-phenaloxidase-chitinase
摘  要：
Atabron (chlorfluazuron, IKI-7899), a new chitin inhibitor, is a very effective pesticide. The symptom of Ostrinia furnacalis larva treated with atabron was found to be similar to that by TH6040 (diflubenzuron). However, there is a great difference in their toxicity, atabron being 110 times higher. Our experimental results indicated that this difference was due to the difference in promoting the phenoloxidase and chitinase activities in the larval cuticle. The activity of cuticular phenoloxidase of fifth instar larvae fed with atabron or TH6040 increased 276% and 28% respectively, and the activity of chi inase 42.3% and 13.6% respectively. When they were injected into the abdomen of the fifth instar larvae, the increase of phenoloxidase was 74.9% and 39% respectively, and the increase of chitinase 68.2% and 28.9% respectively. The increase of phenoloxiase and chitinase activities are presumably the important factors impeding the growth and ecdysis of the corn borer larvae.

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