共生性内微生物减少了宿主对前所未有的热浪的脆弱性
Gerardo I Zardi1, Jonathan R Monsinjon2, Laurent Seuront3
1Normandie Université, UNICAEN, Laboratoire Biologie des Organismes et Ecosystèmes Aquatiques, UMR, 8067 BOREA, (CNRS, MNHN, UPMC, UCBN, IRD-207), CS 14032 14000, Caen, France; Department of Zoology and Entomology, Rhodes University, Grahamstown, 6140, South Africa; CCMAR-CIMAR - Associated Laboratory, University of Algarve, Campus de Gambelas, Faro, 8005-139, Portugal.
Marine environmental research
|June 27, 2024
概括
贝中的内体微生物减轻热应激,显著提高了海洋热浪期间的生存率. 这种共生在脆弱的潮间生态系统中提供了至关重要的生存优势.
科学领域:
- 海洋生物学 海洋生物学
- 生态生态学 生态生态学
- 交生研究 交生研究
背景情况:
- 潮间生态系统面临来自严重海洋热浪的日益严重的威胁.
- Mytilus edulis (蓝贝) 由于环境的高度变化,容易受到热应激的影响.
- 贝内的内体微生物可以改变贝的特性,潜在地减轻热应激.
研究的目的:
- 在2022年英吉利海峡热浪期间,调查内皮质微生物在缓解Mytilus edulis热应激中的作用.
- 量化由内石-贝共生所提供的热缓冲效应.
- 探索这种共生对种群和相关生态系统的生态影响.
主要方法:
- 在2022年英吉利海峡热浪期间的现场观测.
- 部署仿生温度记录器来测量鱼体温.
- 具有和没有内分泌共生体的贝之间的生存率和热概况的比较.
主要成果:
- 微生物感染显著提高了的生存率,特别是在更高,更热的海岸区域.
- 内体共生生物提供了一个热缓冲区,与非感染的贝相比,观察到高达3.2°C的温度差异.
- 在极端热应激条件下,保护作用更为明显.
结论:
- 内分泌物-贝类共生是贝类对极端高温事件的弹性的一个关键因素.
- 这种相互作用影响类的生存,珊瑚礁建设能力,并对生物多样性和生态系统服务产生级联影响.
- 无生物因素动态地塑造了内分泌微生物和贝类之间的寄生-互惠关系.
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