title: Desulfopila inferna sp. nov., a sulfate-reducing bacterium isolated from the subsurface of a tidal sand-flat.
abstract: A Gram-negative, rod-shaped, sulfate-reducing bacterium (strain JS_SRB250Lac(T)) was isolated from a tidal sand-flat in the German Wadden Sea. 16S rRNA gene sequence analysis showed that strain JS_SRB250Lac(T) belonged to the Desulfobulbaceae (Deltaproteobacteria), with Desulfopila aestuarii MSL86(T) being the closest recognized relative (94.2 % similarity). Higher similarity (96.6 %) was shared with 'Desulfobacterium corrodens' IS4, but this name has not been validly published. The affiliation of strain JS_SRB250Lac(T) to the genus Desulfopila was further supported by analysis of aprBA gene sequences and shared physiological characteristics, in particular the broad range of organic electron donors used for sulfate reduction. Compared with Desulfopila aestuarii MSL86(T), strain JS_SRB250Lac(T) additionally utilized butyrate and succinate and grew chemolithoautotrophically with hydrogen as an electron donor. CO dehydrogenase activity was demonstrated, indicating that the reductive acetyl-CoA pathway (Wood-Ljungdahl pathway) was used for CO(2) fixation. Results of cellular fatty acid analysis allowed chemotaxonomic differentiation of strain JS_SRB250Lac(T) from Desulfopila aestuarii MSL86(T) by the presence of C(17 : 0) cyclo and the absence of hydroxy and unsaturated branched-chain fatty acids. Based on phylogenetic, physiological and chemotaxonomic characteristics, strain JS_SRB250Lac(T) represents a novel species of the genus Desulfopila, for which the name Desulfopila inferna sp. nov. is proposed. The type strain is JS_SRB250Lac(T) (=DSM 19738(T) =NBRC 103921(T)).
authors.affiliation: Institut für Chemie und Biologie des Meeres, Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, Postfach 2503, D-26111 Oldenburg, Germany.
authors.forename: Antje
authors.initials: A
authors.lastname: Gittel
authors.affiliation: Institut für Chemie und Biologie des Meeres, Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, Postfach 2503, D-26111 Oldenburg, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Seidel
authors.affiliation: Bremen Institute for Materials Testing, Paul-Feller-Strasse 1, D-28199 Bremen, Germany.
authors.forename: Jan
authors.initials: J
authors.lastname: Kuever
authors.affiliation: Max Planck Institute for Marine Microbiology, Celsiusstrasse 1, D-28359 Bremen, Germany.
authors.forename: Alexander S
authors.initials: AS
authors.lastname: Galushko
authors.affiliation: Institut für Chemie und Biologie des Meeres, Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, Postfach 2503, D-26111 Oldenburg, Germany.
authors.forename: Heribert
authors.initials: H
authors.lastname: Cypionka
authors.affiliation: Institut für Chemie und Biologie des Meeres, Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, Postfach 2503, D-26111 Oldenburg, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Könneke
mesh_terms: D001483:Base Sequence; D020564:Deltaproteobacteria / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D005227:Fatty Acids / Q000032:analysis; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012623:Seawater / Q000382:microbiology*; D013431:Sulfates / Q000378:metabolism
chemical_list: D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S; D013431:Sulfates