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一种新的昆虫病原性线虫物种及其与一个 fakultative necromenic 线虫物种的关联

M B Ávila-López^1,2, D I Hernandez-Mena³, J E Ibarra⁴

¹Comisión Intersecretarial de Bioseguridad de los Organismos Genéticamente Modificados (CIBIOGEM-SECIHTI), Av. Insurgentes Sur 1582, Ciudad de México 03940, México.

|February 24, 2025

概括

在Galleria mellonella幼虫被昆虫病原性线虫 (Heterorhabditis kankabi和Metarhabditis rainai) 和细菌线虫混合感染时,发现了强烈的协会内部竞争. 细菌线虫破坏了虫病原性线虫的生命周期,迫使它们寻找新的宿主.

科学领域:

遗体学遗体学是一个学科.
昆虫病理学昆虫病理学
分子遗传学分子遗传学

背景情况:

Galleria mellonella幼虫容易受到各种线虫感染.
协会内部的竞争可以显著影响寄生虫的生命周期和宿主利用.

研究的目的:

为了识别和描述涉及Galleria mellonella混合感染的线虫物种.
为了研究宿主体内的虫病原体和细菌菌线虫之间的竞争性相互作用.

主要方法:

使用光和电子显微镜分离和识别线虫.
通过对ITS和28S核糖体DNA区域的测序进行分子鉴定.
遗传学分析以确定物种关系.

主要成果:

两种昆虫病原性线虫物种, *Heterorhabditis kankabi* n. sp. 这两种线虫. 和 *Metarhabditis rainai *,也被确定.
细菌菌线虫,M. rainai,作为一个可选的死体线虫,消耗资源.
这种资源竞争阻止了昆虫病原性线虫的发展,并促使宿主被驱逐.

结论:

混合感染可以导致复杂的协会内部竞争动态.
*Metarhabditis rainai* 呈现可选性体行为,对昆虫病原性线虫的成功产生负面影响.
了解这些相互作用对于涉及昆虫病原性线虫的生物控制策略至关重要.

关键词:

细菌菌体是一种细菌.昆虫病原性线虫昆虫病原性线虫梅罗内拉画廊 (Galleria mellonella) 是一个著名的画廊.异种类型的甲虫 (Heterorhabditis kankabi n. sp.) 已经被发现.梅塔哈比迪斯 (Metarhabditis rainai) 是一个常见的疾病.

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