温度改变了海洋微生物群中的相互作用和关键类型
Ewa Merz1, Riley J Hale1, Erik Saberski1
1Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92037, United States.
The ISME journal
|December 30, 2025
概括
海洋微生物通常相互作用,积极的关系比负面的更频繁. 这些相互作用随着水温的变化而变化,影响海洋微生物群.
科学领域:
- 海洋微生物学 海洋微生物学
- 生态生态学 生态生态学
- 生物地质化学生物地质化学
背景情况:
- 海洋微生物对全球生物地化学循环和食物网至关重要.
- 了解生物相互作用是微生物社区动态的关键,但大多数是未知的.
- 野生海洋微生物的相互作用在很大程度上仍然没有表征.
研究的目的:
- 量化微生物相互作用及其在沿海环境中的时间变化.
- 确定海洋微生物群中的关键类型及其特征.
- 评估环境变化,特别是水温对微生物相互作用的影响.
主要方法:
- 实证动态建模应用于沿海微生物社区组成的六年数据集.
- 量化了微生物种类之间的相互作用的频率,强度和标志 (正/负).
- 分析了随着时间的推移以及对温度波动的反应而发生的相互作用模式和关键类型的变化.
主要成果:
- 海洋微生物与大约20%的其他种类相互作用,其中80%的相互作用是弱的.
- 积极的互动比负面的更为普遍.
- 对于社区结构至关重要的基石类型,不一定是最丰富的,并且显示时间顺序.
- 水温升高 (13°C范围) 导致社区互动性降低 (33%下降),并转向更积极的互动 (11%增加).
结论:
- 海洋微生物的相互作用是常见的,主要是促进性的,高度动态的.
- 环境因素,如水温显著影响微生物相互作用的结构和性质.
- 基石类型的身份和作用不是静态的,而是随着时间的推移和环境条件的变化而变化.
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