Resource niche overlap promotes stability of bacterial community metabolism in experimental microcosms

Frontiers in Microbiology
Ellard R HuntingWim Admiraal

Abstract

Decomposition of organic matter is an important ecosystem process governed in part by bacteria. The process of decomposition is expected to benefit from interspecific bacterial interactions such as resource partitioning and facilitation. However, the relative importance of resource niche breadth (metabolic diversity) and resource niche overlap (functional redundancy) on decomposition and the temporal stability of ecosystem processes received little scientific attention. Therefore, this study aims to evaluate the effect of an increase in bacterial community resemblance on both decomposition and the stability of bacterial metabolism in aquatic sediments. To this end, we performed laboratory microcosm experiments in which we examined the influence of bacterial consortia differing in number and composition of species on bacterial activity (Electron Transport System Activity, ETSA), dissolved organic carbon production and wavelet transformed measurements of redox potential (Eh). Single substrate affinities of the individual bacterial species were determined in order to calculate the metabolic diversity of the microbial community. Results presented here indicate that bacterial activity and organic matter decomposition increase with w...Continue Reading

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Citations

Aug 24, 2016·Frontiers in Microbiology·Reed M StubbendieckPaul D Straight
Mar 2, 2017·Applied Microbiology and Biotechnology·Mengyao GuiJinren Ni
Jul 16, 2020·International Journal of Biometeorology·Ellard R HuntingDaniel Robert
Aug 28, 2020·Frontiers in Microbiology·Peter DeinesThomas C G Bosch
May 2, 2019·Frontiers in Physiology·Ellard R HuntingMark O Gessner
Aug 8, 2019·Indian Journal of Microbiology·Hitesh Tikariha, Hemant J Purohit
Jan 27, 2017·Frontiers in Microbiology·Emily B GrahamJames C Stegen
Nov 20, 2021·Nature Communications·Zihan WangSergei Maslov
Dec 17, 2021·The Science of the Total Environment·Ying ZhangJianbo Guo

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