福建农业学报2023，Vol.38Issue(10)：1204-1213,10.DOI:10.19303/j.issn.1008-0384.2023.10.009
不同环境因子对桉树枝瘿姬小蜂生长适应性的影响
Adaptation of Leptocybe invase to Varying Environmental Conditions
摘要
Abstract
[Objective]Adaptability to environmental variations of Leptocybe invase Fisher et LaSalle for growth and survival was investigated based on the physiological mechanisms of the pest in dealing with the adverse conditions.[Methods]Geography-,temperature-,and host-specific morphological indicators,respiratory intensity,and activities of protective enzymes(such as,superoxide dismutase,catalase,peroxidase)and detoxification enzymes(such as,acetylcho-linesterase,carboxylesterase,glutathione-S-transferase,polyphenol oxidase)of the insect were analyzed.[Results]The morphological indicators of L.invase were inversely correlated to the latitude of the area it lived in.Its respiratory intensity and protective enzyme activity were relatively stable between 20℃and 30℃.However,a surrounding temperature beyond 30℃significantly raised the respiration rate and reduced the protective enzyme activity,while below 20℃significantly decreased both.The diet also induced morphological differentiations in the insect.For instance,and the activities of 4 detoxification enzymes(acetylcholinesterase,carboxylesterase,glutathione-S-transferase,and polyphenol oxidase)were higher in the insects fed on DH201-2(Eucalyptus grandis×E.tereticornis)than those on E.exserta.[Conclusion]L.invase found in areas of lower latitude were smaller in body size than those of higher latitude.They thrived between 20℃and 30℃.And the host plants on which they infested affected their morphology as well as the detoxification enzymes in the insect.关键词
环境因子/桉树枝瘿姬小蜂/形态指标/呼吸强度/保护酶/解毒酶Key words
Environmental factors/Leptocybe invase Fisher et LaSalle/morphological indicators/respiratory intensity/protective enzymes/detoxification enzymes分类
农业科技引用本文复制引用
刘雅,符元慧,郭春晖,陈文佳,杨奇龙,杨振德,谢金婷,李俊珏..不同环境因子对桉树枝瘿姬小蜂生长适应性的影响[J].福建农业学报,2023,38(10):1204-1213,10.基金项目
国家自然科学基金面上项目(31971664) （31971664）
