University of Tasmania
Browse

File(s) under permanent embargo

Seasonal variation in the function and diversity of methanotrophs in the littoral wetland of a boreal eutrophic lake

journal contribution
posted on 2023-05-19, 04:31 authored by Siljanen, HMP, Saari, A, Bodrossy, L, Martikanen, PJ
Littoral wetlands are responsible for most of the total methane (CH4) emissions from lake ecosystems. We show that seasonally variable hydrological and temperature conditions in the littoral wetland of a eutrophic boreal lake affect the community composition and gene transcription of methanotrophs measured by a particulate methane monooxygenase (pmoA) gene-targeted microarray. Type Ib freshwater-cluster methanotrophs were favoured by the high water level, and CH4 oxidation was positively correlated with their pmoA gene transcripts. In the dry subsite of the wetland, the more stagnant hydrological conditions in summer and autumn induced the dominance of type II methanotrophs over type I methanotrophs (community composition and pmoA gene transcripts). The relative abundance of type II methanotrophs increased in winter. The results provide new insight into the variation of methanotroph communities across seasons in littoral wetlands.

History

Publication title

FEMS Microbiology Ecology: (Federation of European Microbiological Societies)

Volume

80

Pagination

548-555

ISSN

0168-6496

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

Elsevier Science Bv

Place of publication

Po Box 211, Amsterdam, Netherlands, 1000 Ae

Rights statement

Copyright 2012 Federation of European Microbiological Societies

Repository Status

  • Restricted

Socio-economic Objectives

Assessment and management of benthic marine ecosystems

Usage metrics

    University Of Tasmania

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC