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在Exolontha castanea (Coleoptera: Melolonthinae) 的复合眼中,潜在的动态光适应的微观结构特征和机制

Xiankun Shang¹, Jili Wei², Wei Liu³

¹Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China.

Journal of insect physiology

|November 7, 2025

概括

一种甘害虫Exolontha castanea具有具有性二态的复合眼睛. 它们的眼睛通过改变色素细胞长度和颗粒迁移来适应光.

科学领域:

昆虫学昆虫学是一门学科.
昆虫形态学昆虫形态学
视觉生态学视觉生态学

背景情况:

在中国,Exolontha castanea幼虫是甘的重要地下害虫.
成人E.castanea表现出强烈的飞行和积极的光毒性,表明视觉系统发达.

研究的目的:

研究女性和男性E. castanea的复合眼睛的外部形态,内部微观结构和光感应的适应性.
了解这种甘害虫的视觉功能和光毒素的结构基础.

主要方法:

光显微镜 (LM) 的使用
扫描电子显微镜 (SEM) 的使用
传输电子显微镜 (TEM) 的使用

主要成果:

复合眼睛表现出半岛形的canthus和性大小二态 (女性更大,有更多的方面).
眼睛是光学叠加类型的,具有欧孔晶体体和每个ommatidium的八个视网膜细胞.
动态光适应包括调节原性色素细胞长度和色素颗粒迁移,与光强度相关.

结论:

E. castanea 拥有复杂的复合眼睛,适应光强度调节.
眼睛尺寸的性二态可能与行为差异或生态角色有关.
了解这些视觉适应可以为E. castanea的害虫防治策略提供信息.

关键词:

复合眼是一个复合眼.埃克索伦塔·卡斯塔尼亚 (Exolontha castanea) 是一个鱼类.适应光线的适应.微观结构的微观结构两性二形态主义是什么?

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