将细菌对浮游植物生长的影响与微生物群落组成和共发生模式联系起来
Cecilia Costas-Selas1, Sandra Martínez-García1, Erick Delgadillo-Nuño1
1Centro de Investigación Mariña, Universidade de Vigo, Departamento de Ecoloxía e Bioloxía Animal, 36310, Vigo, Spain.
Marine environmental research
|November 30, 2023
概括
藻类和细菌之间的微生物相互作用显著影响植物浮游生物群落. 细菌可以对藻类生长产生负面或积极的影响,影响多样性和社区聚集.
科学领域:
- 微生物生态学 微生物生态学
- 海洋生物学 海洋生物学
- 物理学的生理学
背景情况:
- 植物浮游生物群体的聚集和对环境变化的反应是复杂的.
- 微藻-细菌相互作用越来越被认为是水生生态系统的关键因素.
研究的目的:
- 研究细菌群落对浮游植物生长和多样性的影响.
- 阐明植物浮游生物和细菌之间的相互作用 (正,负或中性) 的性质.
主要方法:
- 来自42个抗生素生物试验的部分16S和18SrRNA基因的分析.
- 在活跃细菌群落的存在和缺席下评估植物浮游生物的生长.
- 植物浮游生物-细菌协会的植物遗传学和共发生网络分析.
主要成果:
- 细菌在18个生物试验中对植物浮游生物生长产生了显著的负面影响,在5个生物试验中产生了积极影响.
- 当细菌产生负面影响时,浮游生物的多样性会减少.
- 像Thalasiossira spp.,Chlorophytes,Vibrionaceae和Alteromonadales这样的特定种类显示出基于相互作用结果的差异性丰度.
- 在Chlorophyta-Alteromonadales和Bacillariophyceae-Alteromonadales之间观察到积极的同时发生.
结论:
- 植物浮游生物与细菌的相互作用在构建微生物群落中起着关键作用.
- 这些相互作用影响了植物浮游生物的多样性和社区动态.
- 这项研究强调了微藻-细菌关系的复杂性和上下文依赖性.
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