Low Temperature Storage of Eggs Improve the Development and Reproduction of Locusta migratoria (Orthoptera: Acrididae)

文献类型： 外文期刊

第一作者： Jia, Miao

作者： Jia, Miao;Zhao, Xia;Wang, Lei;Tu, Xiongbing;Wang, Guangjun;Nong, Xiangqun;Zhang, Zehua

作者机构：

关键词： oriental migratory locust;the intrinsic rate of increase;4 A degrees C;esterase;phenol oxidase

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.381； 五年影响因子：2.568 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Locusta migratoria L. is an insect with significant economic value. Improving the long-term storage of L. migratoria eggs will help promote the large-scale rearing of this insect. We assessed multiple fitness parameters and enzyme activities of locusts emerged from eggs exposed to 4 A degrees C for 1-4 wk. Locusts emerged from eggs stored at 4 A degrees C for 2 wk showed significantly improved development and reproduction compared with locusts emerged from eggs stored for other time periods. The preimaginal survival rate increased significantly after 2-wk storage while it decreased significantly after 4-wk storage compared with other storage times. The fecundity, hatching rate, and growth rate increased significantly after 2-wk storage, but decreased significantly after 1, 3, and 4 wk compared with the control. However, the preimaginal developmental duration decreased significantly after 2-wk storage but increased significantly after storage for 1, 3, and 4 wk compared with the control. The activities of esterase, glutathione-S-transferases, phenol oxidase, and chitinase were obviously fluctuated with changes in intrinsic rate of increase (r(m)). These results showed that eggs stored at 4 A degrees C for 2 wk could improve the development and reproduction of locust emerged from eggs, and four enzymes activities in above could reflect the health of locust. Our results could be useful in developing large-scale rearing protocols for L. migratoria.

分类号： Q969.9

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