ChazarencBrissonMerlin2010

Référence

Chazarenc, F., Brisson, J. and Merlin, G. (2010) Seasonal and spatial changes of microorganism communities in constructed wetlands: A community level physiological profiling analysis. International Journal of Chemical Engineering, 2010(Article ID 490240):6. (Scopus )

Résumé

In constructed wetlands, microorganisms associated with plants are assumed to play a major role. A one-year survey was conducted in five vertical flow constructed wetland systems that had been operating from 2 months to 8 years in small French villages (100-500 People Equivalent) to provide a better understanding of microbiological activity. The objective of our study was to highlight the most important factor generating variability between microorganisms communities compared to treatment performances. Results of community level physiological profiling using Biolog Ecoplates were analyzed using principal component analysis. The greatest microbial activity was observed in the oldest wetland during summer. Profiles of fed and rest bed were differentiated by the nature of the main carbon source metabolized. Whereas carbohydrates and carboxylic acids appeared to be better assimilated with fed beds, it seemed that phosphate compounds as well as amines allowed better growth in the plates inoculated with samples of rest beds. In all fed beds, the most important parameters affecting the diversity were the season and the age of the wetlands. There were only slight profile differences between surface and subsurface samples and between the first and second stage samples. Copyright © 2010 Florent Chazarenc et al.

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@ARTICLE { ChazarencBrissonMerlin2010,
    AUTHOR = { Chazarenc, F. and Brisson, J. and Merlin, G. },
    TITLE = { Seasonal and spatial changes of microorganism communities in constructed wetlands: A community level physiological profiling analysis },
    JOURNAL = { International Journal of Chemical Engineering },
    YEAR = { 2010 },
    VOLUME = { 2010 },
    NUMBER = { Article ID 490240 },
    PAGES = { 6 },
    ABSTRACT = { In constructed wetlands, microorganisms associated with plants are assumed to play a major role. A one-year survey was conducted in five vertical flow constructed wetland systems that had been operating from 2 months to 8 years in small French villages (100-500 People Equivalent) to provide a better understanding of microbiological activity. The objective of our study was to highlight the most important factor generating variability between microorganisms communities compared to treatment performances. Results of community level physiological profiling using Biolog Ecoplates were analyzed using principal component analysis. The greatest microbial activity was observed in the oldest wetland during summer. Profiles of fed and rest bed were differentiated by the nature of the main carbon source metabolized. Whereas carbohydrates and carboxylic acids appeared to be better assimilated with fed beds, it seemed that phosphate compounds as well as amines allowed better growth in the plates inoculated with samples of rest beds. In all fed beds, the most important parameters affecting the diversity were the season and the age of the wetlands. There were only slight profile differences between surface and subsurface samples and between the first and second stage samples. Copyright © 2010 Florent Chazarenc et al. },
    COMMENT = { Export Date: 2 September 2010 Source: Scopus Art. No.: 490240 doi: 10.1155/2010/490240 },
    ISSN = { 1687806X (ISSN) },
    OWNER = { Luc },
    TIMESTAMP = { 2010.09.02 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-77954570583&partnerID=40&md5=5358c1b094fb4668ab2f7153d0f980ed },
}

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