Organic matter lability modifies the vertical structure of methane-related microbial communities in lake sediments.
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Rissanen AJ, Jilbert T, Simojoki A, Mangayil R, Aalto SL, Khanongnuch R, Peura S, Jäntti H
Microbiol Spectr 11 (5) e0195523 [2023-10-17; online 2023-09-12]
Lakes are important natural emitters of the greenhouse gas methane (CH4). It has been shown that eutrophication, via increasing the input of labile organic matter (OM) into lake sediments and subsequently affecting the redox conditions, increases methane emissions from lake sediments through increased sediment methane production rates and decreased methane oxidation efficiency. However, the effect of organic matter lability on the structure of the methane-related microbial communities of lake sediments is not known. In this study, we show that, besides the activity, also the structure of lake sediment methane producing and consuming microbial community is significantly affected by changes in the sediment organic matter lability.
PubMed 37698418
DOI 10.1128/spectrum.01955-23
Crossref 10.1128/spectrum.01955-23