RRC ID 3047
Author Ueki A, Akasaka H, Suzuki D, Ueki K.
Title Paludibacter propionicigenes gen. nov., sp. nov., a novel strictly anaerobic, Gram-negative, propionate-producing bacterium isolated from plant residue in irrigated rice-field soil in Japan.
Journal Int J Syst Evol Microbiol
Abstract A strictly anaerobic, propionate-producing bacterial strain (WB4T) isolated from rice plant residue in anoxic rice-field soil in Japan was characterized phenotypically and phylogenetically. Cells were Gram-negative, non-motile, non-spore-forming, short rods. The strain utilized various sugars and produced propionate and acetate as major fermentation products with a small amount of succinate. The optimum growth temperature was 30 degrees C. Oxidase, catalase and nitrate-reducing activities were negative. The major cellular fatty acids were anteiso-C(15 : 0), C(15 : 0) and anteiso-C(17 : 0) 3-OH. Menaquinone MK-8(H4) was the major respiratory quinone. The genomic DNA G+C content was 39.3 mol%. Phylogenetic analysis based on the 16S rRNA gene sequence placed the strain in the phylum 'Bacteroidetes'. The closest relative to strain WB4T was an environmental clone from water contaminated with equine manure (sequence similarity of 99.7 %) and the strain formed a distinct cluster with other environmental clones mainly from freshwater sediments. The closest recognized species were members of the genus Dysgonomonas, with 16S rRNA gene sequence similarities of 90.9-89.8 %. Bacteroides merdae was the next closest recognized species (similarity of 88.7 % to the type strain). Given that the ecological, physiological and chemotaxonomic characteristics of strain WB4T were different from those of any related species, a new genus and species Paludibacter propionicigenes gen. nov., sp. nov., is proposed to accommodate it. The type strain is WB4T (= JCM 13257T = DSM 17365T).
Volume 56(Pt 1)
Pages 39-44
Published 2006-1-1
DOI 10.1099/ijs.0.63896-0
PII 56/1/39
PMID 16403864
MeSH Agriculture Base Composition Fatty Acids Gram-Negative Anaerobic Bacteria / chemistry Gram-Negative Anaerobic Bacteria / classification* Gram-Negative Anaerobic Bacteria / isolation & purification Gram-Negative Anaerobic Bacteria / physiology Molecular Sequence Data Propionates / metabolism RNA, Bacterial / genetics RNA, Ribosomal, 16S / genetics Sequence Homology, Nucleic Acid Soil Microbiology* Species Specificity Temperature
IF 2.415
Times Cited 149
WOS Category MICROBIOLOGY
Resource
Pathogenic microorganisms JCM 13257? JCM 9497? JCM 10827?