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Soil pH mediates the balance between stochastic and deterministic assembly of bacteria

Cited 352 time in wos
Cited 364 time in scopus
Title
Soil pH mediates the balance between stochastic and deterministic assembly of bacteria
Other Titles
천이 토양에서 박테리아의 확률론적이고 결정론적인 집합의 균형을 중재하는 토양 pH
Authors
Binu, M.
Lee, Yoo Kyung
Jonathan Adams
Dong Ke
Kim, Mincheol
James Stegen
Keywords
bacterial communitymeta-analysissoil pH
Issue Date
2018
Citation
Binu, M., et al. 2018. "Soil pH mediates the balance between stochastic and deterministic assembly of bacteria". ISME JOURNAL, 12(4): 1072-1083.
Abstract
Little is known about the factors affecting the relative influence of stochastic and deterministic processes that governs the assembly of microbial communities in successional soils. Here, we conducted a meta-analysis of bacterial communities using six different successional soils datasets, scattered across different regions, with different pH conditions in early and late successional soils. We found that extreme acidic or alkaline pH conditions lead to assembly of phylogenetically more clustered bacterial communities through deterministic processes, whereas pH conditions close to neutral lead to phylogenetically less clustered bacterial communities with more stochasticity. We suggest that the influence of pH, rather than successional age, is the main driving force in producing trends in phylogenetic assembly of bacteria, and that pH also influences the relative balance of stochastic and deterministic processes along successional soils. Given that pH had a much stronger association with community assembly than did successional age, we evaluated whether the inferred influence of pH was maintained when studying globally-distributed samples collected without regard for successional age. This dataset confirmed the strong influence of pH, suggesting that the influence of soil pH on community assembly processes occurs globally. Extreme pH conditions likely exert more stringent limits on survival and fitness, imposing strong selective pressures through ecological and evolutionary time. Taken together, these findings suggest that the degree to which stochastic vs. deterministic processes shape soil bacterial community assembly is a consequence of soil pH rather than successional age.
URI
https://repository.kopri.re.kr/handle/201206/8561
DOI
http://dx.doi.org/10.1038/s41396-018-0082-4
Type
Article
Station
Dasan Station
Indexed
SCI
Appears in Collections  
2017-2018, Investigating terrestrial ecosystem changes in response to deglaciation in the Brøgger Peninsular (17-18) / Lee, Yoo Kyung (PE17280)
2014-2016, Environmental Change Studies Based on The Arctic Dasan Station: in terms of Geology, Atmospheric Science, and Ecology (14-16) / Lee; Yookyung (PE14030; PE15030; PE16030)
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