阐明Metarhizium对Euschistus heros (Hemiptera: Pentatomidae) 蛋的致病性
Aline Nunes da Silva1, Janaína Brandão Seibert1, Jhonattan Rodríguez Guerrero1
1Department of Entomology and Acarology, Escola Superior de Agricultura 'Luiz de Queiroz', University of São Paulo (ESALQ-USP), Av. Pádua Dias, 11, Piracicaba, SP CEP 13418-900, Brazil.
Journal of invertebrate pathology
|January 27, 2025
概括
昆虫病原菌如Metarhizium anisopliae和Metarhizium pingshaense会降解昆虫卵壁,防止它们化. 这些真菌利用卵脂进行生长,通过透和营养吸收来证实它们的杀卵效果.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 微生物学 微生物学
- 植物病理学 植物病理学
背景情况:
- 昆虫病原菌的杀卵机制尚未完全理解.
- 一个假设表明,发芽的真菌子的代谢活动可以使昆虫胚胎在没有直接透的情况下无法生存.
研究的目的:
- 研究Metarhizium anisopliae和Metarhizium pingshaense在昆虫蛋上的杀卵效应和潜在机制.
- 将这些真菌的杀卵策略与Beauveria bassiana进行比较.
主要方法:
- 用Metarhizium真菌处理的昆虫蛋的显微镜检查.
- 分析真菌与卵壁和内部结构的相互作用.
- 从蛋转移到真菌菌的营养物质的观察.
主要成果:
- Metarhizium anisopliae和Metarhizium pingshaense显著降低了的化率,降至3%以下.
- 的生长和透导致了昆虫卵壁的退化.
- 观察到脂质从蛋迁移到真菌菌根中,这表明营养吸收.
结论:
- Metarhizium真菌通过物理透和卵壁的降解表现出杀卵效应.
- 这些真菌利用卵脂储备作为其发展的营养来源.
- 这些发现支持了物理透和营养获取在真菌诱导的杀卵活动中的作用.
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