Ben Aissa F., Postec A., Erauso G., Payri Claude, Pelletier Bernard, Hamdi M., Fardeau Marie-Laure, Ollivier Bernard. (2015). Characterization of Alkaliphilus hydrothermalis sp nov., a novel alkaliphilic anaerobic bacterium, isolated from a carbonaceous chimney of the Prony hydrothermal field, New Caledonia. Extremophiles, 19 (1), p. 183-188. ISSN 1431-0651.
Titre du document
Characterization of Alkaliphilus hydrothermalis sp nov., a novel alkaliphilic anaerobic bacterium, isolated from a carbonaceous chimney of the Prony hydrothermal field, New Caledonia
Année de publication
2015
Auteurs
Ben Aissa F., Postec A., Erauso G., Payri Claude, Pelletier Bernard, Hamdi M., Fardeau Marie-Laure, Ollivier Bernard
Source
Extremophiles, 2015,
19 (1), p. 183-188 ISSN 1431-0651
A novel anaerobic, alkaliphilic, Gram-positive staining bacterium was isolated from a hydrothermal chimney in the Prony Bay, New Caledonia. This strain designated FatMR1(T) grew at temperatures from 20 to 55 A degrees C (optimum 37 A degrees C) and at pH between 7.5 and 10.5 (optimum 8.8-9). NaCl is not required for growth (optimum 0.2-0.5 %), but is tolerated up to 3 %. Sulfate, thiosulfate, elemental sulfur, sulfite, nitrate and nitrite are not used as terminal electron acceptors. Strain FatMR1(T) fermented pyruvate, yeast extract, peptone and biotrypcase and used fructose as the only sugar. The main fermentation products from fructose and proteinaceous compounds (e.g. peptone and biotrypcase) were acetate, H-2 and CO2. Crotonate was disproportionated to acetate and butyrate. The predominant cellular fatty acids were C-14:0 and C-16:0. The G + C content of the genomic DNA was 37.1 mol %. On the basis of phylogenetic, genetic, and physiological properties, strain FatMR1(T) (=DSM 25890(T), =JCM 18390(T)) belonging to the phylum Firmicutes, class Clostridia, order Clostridiales, is proposed as a novel species of the genus Alkaliphilus, A. hydrothermalis sp. nov.
Plan de classement
Ecologie, systèmes aquatiques [036]
;
Biotechnologies [084]
Description Géographique
NOUVELLE CALEDONIE
Localisation
Fonds IRD [F B010063622]
Identifiant IRD
fdi:010063622
