Title: Functional diversity and redundancy across fish gut, sediment and water bacterial communities

Abstract

Here, this work explores the functional diversity and redundancy in a bacterial metacommunity constituted of three habitats (sediment, water column and fish gut) in a coastal lagoon under anthropogenic pressure. Comprehensive functional gene arrays covering a wide range of ecological processes and stress resistance genes to estimate the functional potential of bacterial communities were used. Then, diversity partitioning was used to characterize functional diversity and redundancy within (α), between (β) and across (γ) habitats. It was showed that all local communities exhibit a highly diversified potential for the realization of key ecological processes and resistance to various environmental conditions, supporting the growing evidence that macro-organisms microbiomes harbour a high functional potential and are integral components of functional gene dynamics in aquatic bacterial metacommunities. Several levels of functional redundancy at different scales of the bacterial metacommunity were observed (within local communities, within habitats and at the metacommunity level). The findings indicated a high potential for the realization of spatial ecological insurance within this ecosystem, that is, the functional compensation among microorganisms for the realization and maintenance of key ecological processes, within and across habitats. Finally, the role of macro-organisms as dispersal vectors of microbes and their potential influence on marine metacommunitymore » dynamics were discussed.« less

Authors:

Escalas, Arthur ^[1]; Troussellier, Marc ^[2]; Yuan, Tong ^[3]; Bouvier, Thierry ^[2]; Bouvier, Corinne ^[2]; Mouchet, Maud A. ^[4]; Flores Hernandez, Domingo ^[5]; Ramos Miranda, Julia ^[5]; Zhou, Jizhong ^[6]; Mouillot, David ^[7]

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+ Show Author Affiliations

1. Univ. of Oklahoma, Norman, OK (United States)
2. Université Montpellier (France). IRD‐CNRS‐UM‐IFREMER
3. Institute for Environmental Genomics and Department of Microbiology and Plant BiologyUniversity of OklahomaNorman OK73019 USA
4. National Museum of Natural History, Paris (France)
5. Universidad Autonoma de Campeche (Mexico)
6. Univ. of Oklahoma, Norman, OK (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Tsinghua Univ., Beijing (China)
7. Université Montpellier (France). IRD‐CNRS‐UM‐IFREMER; James Cook Univ., Townsville, QLD (Australia)

Publication Date:

2017-06-15

Research Org.:

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:

USDOE Office of Science (SC)

OSTI Identifier:

1567090

Grant/Contract Number:  

AC02-05CH11231

Resource Type:

Accepted Manuscript

Journal Name:

Environmental Microbiology

Additional Journal Information:

Journal Volume: 19; Journal Issue: 8; Journal ID: ISSN 1462-2912

Publisher:

Wiley

Country of Publication:

United States

Language:

English

Subject:

59 BASIC BIOLOGICAL SCIENCES