caa a22 4500 39755236X CHVBK 20180308164753.0 cr unu---uuuuu 161202e199602 xx s 000 0 eng 10.1111/j.1574-6941.1996.tb00201.x doi (NATIONALLICENCE)oxford-10.1111/j.1574-6941.1996.tb00201.x Bacterial abundance and diversity in the Barbados Trench determined by phospholipid analysis [Elektronische Daten] [J. Guezennec, A. Fiala-Medioni] The Barbados trench is characterized by large fields of volcanoes and mounds located over a distance of 30 km above the northern slope of a basement ridge corresponding to an inactive transform fault. Sediments from various locations were collected and analyzed for their lipid contents. Bacterial input to the overall biomass was estimated through the analysis of phospholipid ester-linked fatty acid (PLFA) profiles and glycerol ether lipids. Results indicated a eubacterial biomass estimated to be 109cells (g dry wt)−1. Individual fatty acid profiles revealed the presence of sulfur-oxidizing bacteria common to many deep-sea sites but also a large contribution of type I and type II methanotrophs to the eubacterial biomass. The presence of methanotrophs was further supported by the analysis of specific biomarkers of these microorganisms as well as some unusual trans fatty acid isomers. Anaerobic bacteria and presumbly sulfate reducing bacteria were also present, as well as archaebacteria and primarily methanogens, as indicated by glycerol ether lipid analysis. © 1996 Federation of European Microbiological Societies. All rights reserved Microbial biomass nationallicence Community structure nationallicence Fatty acid nationallicence Guezennec J. IFREMER, Centre de Brest, DRO/EP/LBMH, BP 70, 29280 Plouzane, France aut Fiala-Medioni A. Observatoire Océanologique ARAGO, Université P. and M. Curie, URA 117, 66650 Banuyls-sur-mer, France aut FEMS Microbiology Ecology Blackwell Publishing Ltd 19/2(1996-02), 83-93 19:2<83 1996 19 femsec https://doi.org/10.1111/j.1574-6941.1996.tb00201.x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1111/j.1574-6941.1996.tb00201.x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Guezennec J. IFREMER, Centre de Brest, DRO/EP/LBMH, BP 70, 29280 Plouzane, France aut NATIONALLICENCE 700 1- Fiala-Medioni A. Observatoire Océanologique ARAGO, Université P. and M. Curie, URA 117, 66650 Banuyls-sur-mer, France aut NATIONALLICENCE 773 0- FEMS Microbiology Ecology Blackwell Publishing Ltd 19/2(1996-02), 83-93 19:2<83 1996 19 femsec Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford