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dc.contributor.authorFardeau, Marie-Laureen_US
dc.contributor.authorSalinas, Monica Bonillaen_US
dc.contributor.authorL'Haridon, Stephaneen_US
dc.contributor.authorJeanthon, Christianen_US
dc.contributor.authorVerhe, Fredericen_US
dc.contributor.authorCayol, Jean-Lucen_US
dc.contributor.authorPatel, Bharaten_US
dc.contributor.authorGarcia, Jean-Louisen_US
dc.contributor.authorOllivier, Bernarden_US
dc.description.abstractNovel thermophilic, anaerobic, Gram-positive, rod-shaped bacteria, strains SL9 and OCA1, were isolated from oilfields in France and Australia, respectively. Both strains, together with Thermoanaerobacter yonseiensis KB-1T (=DSM 13777T), Thermoanaerobacter tengcongensis MB4T (=DSM 15242T) and Carboxydibrachium pacificum JMT (=DSM 12653T), possessed genomic (DNA-DNA hybridization studies) and phylogenetic similarities with Thermoanaerobacter subterraneus SEBR 7858T (=DSM 13054T), which was isolated recently from an oilfield reservoir in south-west France. Marked phenotypic differences exist between the three oilfield isolates (T. subterraneus, strain OCA1 and strain SL9): they include temperature range for growth and substrates used. Differences were also observed in the DNA G+C contents of all organisms. Similarly to T. subterraneus, strains SL9 and OCA1, and also T. yonseiensis, T. tengcongensis and Carboxydibrachium pacificum, produced acetate and L-alanine as major end products of glucose metabolism [0縭1簠mol L-alanine produced (mol glucose consumed)-1] and reduced thiosulfate, but not sulfate, to sulfide. Because of these significant metabolic and phylogenetic differences between the oilfield isolates (T. subterraneus, strain OCA1 and strain SL9), T. yonseiensis, T. tengcongensis and Carboxydibrachium pacificum and other Thermoanaerobacter species, it is proposed to reassign them as a novel genus and species, Caldanaerobacter subterraneus gen. nov., sp. nov., comb. nov., with the creation of four novel subspecies, Caldanaerobacter subterraneus subsp. subterraneus subsp. nov., comb. nov., Caldanaerobacter subterraneus subsp. yonseiensis subsp. nov., comb. nov., Caldanaerobacter subterraneus subsp. tengcongensis subsp. nov., comb. nov. and Caldanaerobacter subterraneus subsp. pacificus subsp. nov., comb. nov.en_US
dc.publisherSociety of General Microbiologyen_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofjournalInternational Journal of Systematic and Evolutionary Microbiologyen_US
dc.subject.fieldofresearchHISTORY AND ARCHAEOLOGYen_US
dc.titleIsolation from oil reservoirs of novel thermophilic anaerobes phylogenetically related to Thermoanaerobacter subterraneus: reassignment of T. subterraneus, Thermoanaerobacter yonseiensis, Thermoanaerobacter tengcongensis and Carboxydibrachium pacificum ten_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.hasfulltextNo Full Text

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