您好，欢迎访问新疆农业科学院 机构知识库！
新疆农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Activin β Is Critical for Larval-Pupal Transition in the 28 Spotted Lady Beetle Henosepilachna vigintioctopunctata

文献类型： 外文期刊

作者： Fu, Kai-Yun 1 ; Chen, Feng 3 ; Jin, Lin 3 ; Li, Guo-Qing 3 ;

作者机构： 1.Xinjiang Acad Agr Sci, Inst Plant Protect, Xinjiang Key Lab Agr Biosafety, Urumqi, Xinjiang, Peoples R China

2.Minist Agr, Key Lab Intergraded Management Harmful Crop Vermin, Urumqi, Peoples R China

3.Nanjing Agr Univ, Coll Plant Protect, State & Local Joint Engn Res Ctr Green Pesticide I, Dept Entomol,State Key Lab Agr & Forestry Biosecur, Nanjing, Peoples R China

关键词： activin beta; baboon isoform; Henosepilachna vigintioctopunctata; metamorphosis; pigmentation

期刊名称：ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：1.9； 五年影响因子：2.2 ）

ISSN： 0739-4462

年卷期： 2025 年 118 卷 1 期

页码：

收录情况： SCI

摘要： The activin cascade is activated when a pair of extracellular ligand (Myoglianin, Myo; Activin beta, Act beta; Dawdle, Daw) binds to two pairs of transforming growth factor beta (TGF) serine-threonine receptor kinases, TGF-beta type I (Baboon, Babo) and II receptors. However, the roles of activin way have not well been explored in non-Drosophilid insects. In the present paper, we compared the functions of Activin beta (Act beta) ligand and receptor isoform BaboB in post-embryonic development in a defoliating ladybird Henosepilachna vigintioctopunctata. RNA interference (RNAi) for Hvact beta but not Hvbabob upregulated juvenile hormone signal, reduced ecdysone pathway and impaired larval-pupal transformation. The arresting Hvact beta RNAi larvae formed pupa-specific black markings below the larval exuviae. Thus, the impairment of metamorphosis may be caused by failing to complete ecdysis behavior due to nonfunctional muscles. Consistently, larval body sizes were smaller and adult appendages were shorter in the Hvact beta RNAi larvae, in contrast to those in the Hvbabob depleted beetles. Conversely, knockdown of Hvbabob but not Hvact beta changed the pigmentation of adult elytra. Our results suggest that Act beta exerts regulative roles in JH production, ecdysteroidogenesis and organ remodeling, thus contributing to modulate the larva-pupa-adult transformation, through a BaboB independent way in H. vigintioctopunctata.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：新疆农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台