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| Henri, Pauline A.; Rommevaux-jestin, Celine; Lesongeur, Francoise; Mumford, Adam; Emerson, David; Godfroy, Anne; Menez, Benedicte. |
| To explore the capability of basaltic glass to support the growth of chemosynthetic microorganisms, complementary in situ and in vitro colonization experiments were performed. Microbial colonizers containing synthetic tholeitic basaltic glasses, either enriched in reduced or oxidized iron, were deployed off-axis from the Mid Atlantic Ridge on surface sediments of the abyssal plain (35°N; 29°W). In situ microbial colonization was assessed by sequencing of the 16S rRNA gene and basaltic glass alteration was characterized using Scanning Electron Microscopy, micro-X-ray Absorption Near Edge Structure at the Fe-K-edge and Raman microspectroscopy. The colonized surface of the reduced basaltic glass was covered by a rind of alteration made of iron-oxides trapped... |
| Tipo: Text |
Palavras-chave: Basaltic glass; Zetaproteobacteria; Bio-mediated alteration; Iron-oxidation; Abyssal plain. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00378/48894/49332.pdf |
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