The Role of Land Use Types and Water Chemical Properties in Structuring the Microbiomes of a Connected Lake System

Frontiers in Microbiology

Maya Lalzar¹  Assaf Malik¹  Lars Ganzert²  Daniel Sher³  Sophi Marmen³  Lior Blank⁴  Hans-Peter Grossart⁵  Ashraf Al-Ashhab⁶ 

[1] Bioinformatics Service Unit, University of Haifa, Haifa, Israel;Department of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany;Department of Marine Biology, Leon H. Charney School of Marine Sciences, University of Haifa, Haifa, Israel;Department of Plant Pathology and Weed Research, ARO, Volcani Center, Rishon Lezion, Israel;Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany;Microbial Metagenomics Division, Dead Sea and Arava Science Center, Masada, Israel;

关键词: microbiome;    lakes;    water parameters;    land use;    distribution;    cyanobacteria;   

DOI  :  10.3389/fmicb.2020.00089

来源: DOAJ

【 摘 要 】

Lakes and other freshwater bodies are intimately connected to the surrounding land, yet to what extent land-use affects the quality of freshwater and the microbial communities living in various freshwater environments is largely unknown. We address this question through an analysis of the land use surrounding 46 inter-connected lakes located within seven different drainage basins in northern Germany, and the microbiomes of these lakes during early summer. Lake microbiome structure was not correlated with the specific drainage basin or by basin size, and bacterial distribution did not seem to be limited by distance. Instead, land use within the drainage basin could predict, to some extent, NO2 + NO3 concentrations in the water, which (together with temperature, chlorophyll a and total phosphorus) correlated to some extent with the water microbiome structure. Land use directly surrounding the water bodies, however, had little observable effects on water quality or the microbiome. Several microbial lineages, including Cyanobacteria and Verrucomicrobia, were differentially partitioned between the lakes. Significantly more data, including time-series measurements of land use and water chemical properties, are needed to fully understand the interaction between the environment and the organization of microbial communities.

【 授权许可】

Unknown