Fish predation risk alters the microbiota of Daphnia in the process of inducing its life-history defence traits

IF 2.8 2区生物学 Q2 ECOLOGY

Freshwater Biology Pub Date : 2024-02-26 DOI:10.1111/fwb.14235

Qi Liu, Hui Chen, Siddiq Akbar, Lei Gu, Yunfei Sun, Zhou Yang

引用次数: 0

Abstract

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鱼类捕食风险在诱导水蚤生活史防御特征的过程中改变了水蚤的微生物区系

宿主相关微生物群是宿主适应多变环境条件的重要媒介。然而，鱼类捕食风险是否会改变水蚤肠道微生物群的组成，同时也会诱导水蚤的生命史防御特性，目前仍不清楚。研究捕食风险对猎物相关微生物区系的影响，可能有助于我们从微生物的角度加深对诱导性反捕食防御的理解。本研究以大型水蚤为模式生物，研究了大型水蚤生命史中反捕食防御过程中水蚤肠道以及整个水蚤和培养基中微生物区系的变化。还评估了这些变化与发育阶段的关系。结果表明，捕食风险可同时诱导水蚤的抗捕食防御，并重塑相关微生物群的组成。水蚤的肠道微生物群对发育阶段和捕食风险都有反应。在捕食风险下，肠道微生物群的香农多样性随着发育阶段的不同而显著下降。在捕食风险下，伯克霍尔德菌科和黄杆菌科等优势菌的丰度降低，并随着发育阶段的增加而进一步降低。功能预测结果表明，捕食风险的存在主要削弱了大菱鲆肠道中微生物的整体功能，尤其是代谢功能。微生物功能的削弱在性成熟期最为明显。此外，在捕食风险条件下，水蚤整个肠道和解剖肠道中的独特操作分类单元数量明显高于对照组。根据筛选结果，盘尾丝菌属（尔闻科）可以明显区分有无捕食风险的解剖肠样本。本研究为水蚤微生物群的结构特征和功能作用提供了更多的见解，并从微生物的角度加深了我们对诱导性抗捕食防御的理解。此外，本研究还强调了诱导防御特征与微生物区系改变之间可能存在的复杂关联，这值得进一步研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Freshwater Biology 生物-海洋与淡水生物学

CiteScore

5.90

自引率

3.70%

发文量

162

审稿时长

2 months

期刊介绍： Freshwater Biology publishes papers on all aspects of the ecology of inland waters, including rivers and lakes, ground waters, flood plains and other freshwater wetlands. We include studies of micro-organisms, algae, macrophytes, invertebrates, fish and other vertebrates, as well as those concerning whole systems and related physical and chemical aspects of the environment, provided that they have clear biological relevance. Studies may focus at any level in the ecological hierarchy from physiological ecology and animal behaviour, through population dynamics and evolutionary genetics, to community interactions, biogeography and ecosystem functioning. They may also be at any scale: from microhabitat to landscape, and continental to global. Preference is given to research, whether meta-analytical, experimental, theoretical or descriptive, highlighting causal (ecological) mechanisms from which clearly stated hypotheses are derived. Manuscripts with an experimental or conceptual flavour are particularly welcome, as are those or which integrate laboratory and field work, and studies from less well researched areas of the world. Priority is given to submissions that are likely to interest a wide range of readers. We encourage submission of papers well grounded in ecological theory that deal with issues related to the conservation and management of inland waters. Papers interpreting fundamental research in a way that makes clear its applied, strategic or socio-economic relevance are also welcome. Review articles (FRESHWATER BIOLOGY REVIEWS) and discussion papers (OPINION) are also invited: these enable authors to publish high-quality material outside the constraints of standard research papers.