Ancylobacter dichloromethanicus sp. nov. - a new aerobic facultatively methylotrophic bacterium utilizing dichloromethane.

Julia Firsova , Nina Doronina , Elke Lang (1) , Cathrin Spröer (2) , Stéphane Vuilleumier (3, 4, 5) , Yuri Trotsenko

1 Paléobiodiversité et paléoenvironnements
2 DSMZ - German Collection of Microorganismes and Cell Cultures
3 CEEB - Centre of Ecology, Evolution and Biogeochemistry
4 EPFL - EPFL Institut de Génie de l'environnement EPFL
5 GMGM - Génétique moléculaire, génomique, microbiologie

A novel aerobic facultative methylotroph was isolated from contaminated soil. The organism (strain DM16) is a Gram-negative asporogenous non-motile curved rod multiplying by binary fission. Cells are neutrophilic and mesophilic. This strain utilized dichloromethane, methanol, formate and formaldehyde along with a variety of polycarbon compounds. Strain DM16 employs the ribulosebisphosphate pathway for C(1) assimilation. The DNA G+C content is 64.5mol%. The major ubiquinone is Q-10. The dominant cellular fatty acids are 18:1omega7c (58.6%), cyclo-19:0omega8c (34.8%) and 16:0 (3.2%). Sequencing of the 16S rRNA gene and DNA-DNA hybridization experiments clearly indicated that this methylotroph should be classified as a new species within genus Ancylobacter -Ancylobacter dichloromethanicus sp. nov. with the type strain DM16(T) (DSM 21507(T)=VKM B-2484(T)).

Domaines: Biochimie, Biologie Moléculaire

Julia Firsova, Nina Doronina, Elke Lang, Cathrin Spröer, Stéphane Vuilleumier, et al.. Ancylobacter dichloromethanicus sp. nov. - a new aerobic facultatively methylotrophic bacterium utilizing dichloromethane.. Systematic and Applied Microbiology, 2009, 32 (4), pp.227-32. ⟨10.1016/j.syapm.2009.02.002⟩. ⟨hal-00390610⟩