温度影响环境获得的共生结果
Patrick T Stillson1,2, Kaisy Martinez1, Johnathan Adamson1
1Department of Biology, University of Texas at Arlington, 501 S Nedderman Drive, Arlington, TX 76019, United States.
The ISME journal
|March 21, 2025
概括
微生物共生结果取决于温度和细菌菌株. 环境中获取有益细菌可能有助于宿主适应气候变化.
科学领域:
- 共生关系是共生关系.
- 微生物生态学 微生物生态学
- 动物与微生物的相互作用
背景情况:
- 微生物共生对许多动物至关重要,但对环境变化 (如温度上升) 很敏感.
- 一个共生体的温度耐受性可以限制宿主的范围,但伴侣切换可能会扩大它.
- 东方叶脚虫 (Leptoglossus phyllopus) 依赖于环境中获得的Caballeronia细菌.
研究的目的:
- 为了测试Leptoglossus phyllopus-Caballeronia共生中的宿主结果是否随着共生菌株和温度而变化.
- 调查共生体的环境获取是否可以减轻热应激效应.
主要方法:
- 灵是在24-40°C的温度下养的.
- 灵被提供了六种不同的Caballeronia细菌菌株之一,具有不同的热最佳值.
- 测量了宿主体重,发育时间和生存时间.
主要成果:
- 主体结果显示了温度和菌株依赖的权衡,不同的菌株有利于主体在较低的温度和较高的温度下.
- 结果的差异在高温下最为显著,一些菌株造成严重的成本.
- 在Caballeronia的体外热优化没有预测体内宿主结果.
结论:
- 这种共生中取决于应变和温度的结果表明环境获取可能是有利的.
- 环境中对共生体的获取可能为宿主适应热应激提供好处,这挑战了垂直传输最佳性的假设.
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