Mangrove microbial diversity and the impact of trophic contamination

MARINE POLLUTION BULLETIN

卷:66

Article

Bouchez, Agnes^1,2  Pascault, Noemie^1,2  Chardon, Cecile^1,2  Bouvy, Marc³  Cecchi, Philippe⁴  Lambs, Luc⁵  Herteman, Melanie⁵  Fromard, Francois⁵  Got, Patrice³  Leboulanger, Christophe³ 

[1] INRA, UMR CARRTEL, F-742003 Thonon Les Bains, France

[2] Univ Savoie, UMR CARRTEL, F-73370 Le Bourget Du Lac, France

[3] Univ Montpellier 2, UMR Ecol Syst Marins Cotiers 5119, IRD, F-34095 Montpellier 5, France

[4] IRD, UMR G Eau, F-34196 Montpellier 5, France

[5] CNRS, UMR 5245, ECOLAB, F-31062 Toulouse, France

关键词: Mangrove;    Nutrient load;    Biofilm;    Microbial communities;   

DOI  :  10.1016/j.marpolbul.2012.11.015

来源: Elsevier

【 摘 要 】

Mangroves are threatened ecosystems that provide numerous ecosystem services, especially through their wide biodiversity, and their bioremediation capacity is a challenging question in tropical areas. In a mangrove in Mayotte, we studied the potential role of microbial biofilm communities in removing nutrient loads from pre-treated wastewater. Microbial community samples were collected from tree roots, sediments, water, and from a colonization device, and their structure and dynamics were compared in two areas: one exposed to sewage and the other not. The samples from the colonization devices accurately reflected the natural communities in terms of diversity. Communities in the zone exposed to sewage were characterized by more green algae and diatoms, higher bacteria densities, as well as different compositions. In the area exposed to sewage, the higher cell densities associated with specific diversity patterns highlighted adapted communities that may play a significant role in the fate of nutrients. (C) 2012 Elsevier Ltd. All rights reserved.

【 授权许可】

Free