Microbial Community of a Sandy Beach Subterranean Estuary is Spatially Heterogeneous and Impacted by Winter Waves

IF 4.3 2区生物学 Q2 MICROBIOLOGY

Environmental microbiology Pub Date : 2024-12-22 DOI:10.1111/1462-2920.70009

Jessica A. Bullington, Kathryn Langenfeld, Jacob R. Phaneuf, Alexandria B. Boehm, Christopher A. Francis

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Abstract

Subterranean estuaries (STEs) are critical ecosystems at the interface of meteoric groundwater and subsurface seawater that are threatened by sea level rise. To characterize the influence of tides and waves on the STE microbial community, we collected porewater samples from a high-energy beach STE at Stinson Beach, California, USA, over the two-week neap-spring tidal transition during both a wet and dry season. The microbial community, analyzed by 16S rRNA gene (V4) amplicon sequencing, clustered according to consistent physicochemical features found within STEs. The porewater community harbored relatively abundant Proteobacteria, Verrucomicrobiota, and Bacteroidota, as well as members of the archaeal DPANN superphylum and bacterial Candidate Phyla Radiation (CPR). Tidal conditions were not associated with microbial community composition; however, a wave overtopping event significantly impacted the beach microbiome. As a baseline for environmental change, our results elucidate the unique dynamics of a STE microbiome with unprecedented temporal resolution, highlighting the transport of cellular material through beach porewater due to waves.

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沙地地下河口微生物群落的空间异质性及冬波影响

地下河口是大气地下水与地下海水交界的重要生态系统，受到海平面上升的威胁。为了描述潮汐和波浪对STE微生物群落的影响，我们在美国加利福尼亚州Stinson海滩的一个高能海滩STE收集了孔隙水样本，在湿季和干季的两周小潮-大潮转变期间。通过16S rRNA基因（V4）扩增子测序对微生物群落进行分析，根据在es中发现的一致的物理化学特征聚类。孔隙水群落拥有相对丰富的变形菌门、Verrucomicrobiota和Bacteroidota，以及古细菌DPANN超门和细菌候选辐射门（CPR）的成员。潮汐条件与微生物群落组成无关；然而，波浪漫过事件显著影响了海滩微生物群。作为环境变化的基线，我们的研究结果以前所未有的时间分辨率阐明了STE微生物组的独特动态，突出了由于波浪导致的海滩孔隙水中细胞物质的运输。

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来源期刊

Environmental microbiology 环境科学-微生物学

CiteScore

9.90

自引率

3.90%

发文量

427

审稿时长

2.3 months

期刊介绍： Environmental Microbiology provides a high profile vehicle for publication of the most innovative, original and rigorous research in the field. The scope of the Journal encompasses the diversity of current research on microbial processes in the environment, microbial communities, interactions and evolution and includes, but is not limited to, the following: the structure, activities and communal behaviour of microbial communities microbial community genetics and evolutionary processes microbial symbioses, microbial interactions and interactions with plants, animals and abiotic factors microbes in the tree of life, microbial diversification and evolution population biology and clonal structure microbial metabolic and structural diversity microbial physiology, growth and survival microbes and surfaces, adhesion and biofouling responses to environmental signals and stress factors modelling and theory development pollution microbiology extremophiles and life in extreme and unusual little-explored habitats element cycles and biogeochemical processes, primary and secondary production microbes in a changing world, microbially-influenced global changes evolution and diversity of archaeal and bacterial viruses new technological developments in microbial ecology and evolution, in particular for the study of activities of microbial communities, non-culturable microorganisms and emerging pathogens