Vertical structure of the bacterial diversity in meromictic Fayetteville Green Lake,MicrobiologyOpen

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Vertical structure of the bacterial diversity in meromictic Fayetteville Green Lake
MicrobiologyOpen ( IF 3.9 ) Pub Date : 2021-08-03 , DOI: 10.1002/mbo3.1228
Kaleigh R Block ₁ , Joy M O'Brien ₁ , William J Edwards ₁ , Cassandra L Marnocha ₁

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The permanently stratified water columns in euxinic meromictic lakes produce niche environments for phototrophic sulfur oxidizers and diverse sulfur metabolisms. While Green Lake (Fayetteville, New York, NY) is known to host a diverse community of ecologically important sulfur bacteria, analyses of its microbial communities, to date, have been largely based on pigment analysis and smaller datasets from Sanger sequencing techniques. Here, we present the results of next-generation sequencing of the eubacterial community in the context of the water column geochemistry. We observed abundant purple and green sulfur bacteria, as well as anoxygenic photosynthesis-capable cyanobacteria within the upper monimolimnion. Amidst the phototrophs, we found other sulfur-cycling bacteria including sulfur disproportionators and chemotrophic sulfur oxidizers, further detailing our understanding of the sulfur cycle and microbial ecology of euxinic, meromictic lakes.

中文翻译：

半聚体费耶特维尔绿湖细菌多样性的垂直结构

微生分流湖中永久分层的水柱为光养硫氧化剂和多种硫代谢创造了利基环境。虽然绿湖（纽约州费耶特维尔）拥有多种具有重要生态意义的硫细菌群落，但迄今为止对其微生物群落的分析主要基于色素分析和桑格测序技术的较小数据集。在这里，我们展示了水体地球化学背景下真细菌群落的下一代测序结果。我们在上部单层微生物中观察到丰富的紫色和绿色硫细菌，以及具有缺氧光合作用能力的蓝细菌。在光养生物中，我们发现了其他硫循环细菌，包括硫歧化菌和化能硫氧化菌，进一步详细说明了我们对硫循环和微生、分流湖泊的微生物生态的理解。

更新日期：2021-08-03

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