Open AccessThe Genome Sequence of the Crenarchaeon Acidilobus saccharovorans Supports a New Order, Acidilobales , and Suggests an Important Ecological Role in Terrestrial Acidic Hot Springs
Author(s) -
Andrey V. Mardanov,
Vitali Svetlitchnyi,
Alexey V. Beletsky,
M. I. Prokofeva,
E. A. Bonch-Osmolovskaya,
Nikolai V. Ravin,
K. G. Skryabin
Publication year - 2010
Publication title -
applied and environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 324
eISSN - 1070-6291
pISSN - 0099-2240
DOI - 10.1128/aem.00599-10
Subject(s) - biology , ecology , order (exchange) , sequence (biology) , genome , evolutionary biology , computational biology , genetics , gene , finance , economics
Acidilobus saccharovorans is an anaerobic, organotrophic, thermoacidophilic crenarchaeon isolated from a terrestrial hot spring. We report the complete genome sequence ofA. saccharovorans , which has permitted the prediction of genes for Embden-Meyerhof and Entner-Doudoroff pathways and genes associated with the oxidative tricarboxylic acid cycle. The electron transfer chain is branched with two sites of proton translocation and is linked to the reduction of elemental sulfur and thiosulfate. The genomic data suggest an important role of the orderAcidilobales in thermoacidophilic ecosystems whereby its members can perform a complete oxidation of organic substrates, closing the anaerobic carbon cycle.