HEMOLYMPH JUVENILE-HORMONE ESTERASE-ACTIVITY IN SYNCHRONOUS LAST INSTAR LARVAE OF THE CABBAGE-LOOPER, TRICHOPLUSIA-NI

被引：108

作者：

SPARKS, TC ^{[1
]}

WILLIS, WS ^{[1
]}

SHOREY, HH ^{[1
]}

HAMMOCK, BD ^{[1
]}

机构：

[1] UNIV CALIF RIVERSIDE, DEPT ENTOMOL, DIV TOXICOL & PHYSIOL, RIVERSIDE, CA 92521 USA

来源：

JOURNAL OF INSECT PHYSIOLOGY | 1979年 / 25卷 / 02期

基金：

美国国家卫生研究院;

关键词：

degradation; development; esterase; juvenile hormone; Noctuidae; Trichoplusia ni;

D O I：

10.1016/0022-1910(79)90090-8

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Weight and time of moult during the last instar of the cabbage looper (Trichoplusia ni) were examined and used to select last instar larvae that had similar rates of development. Haemolymph protein content and titres of haemolymph esterases hydrolyzing juvenile hormone I, juvenile hormone III, and α-naphthyl acetate were monitored during the last instar using these closely timed larvae. Juvenile hormone I and juvenile hormone III esterase profiles were very similar and differed markedly from the α-naphthyl acetate esterase and protein content profiles. Two major peaks of juvenile hormone esterase activity were observed, one before ecdysone release and the other just prior to pupal ecdysis. Juvenile hormone I was hydrolyzed 15 times faster than juvenile hormone III when assayed at 5 × 10-6 M. © 1979.

引用

页码：125 / 132

页数：8

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