RRC ID 75205
著者 Han S, Tang R, Yang S, Xie CJ, Narsing Rao MP, Liu GH, Zhou SG.
タイトル Two ferric-reducing bacteria Geothrix terrae sp. nov. and Geothrix alkalitolerans sp. nov., isolated from paddy soil.
ジャーナル Arch Microbiol
Abstract Two Gram-staining-negative strains, designated SG184T and SG263T were isolated from paddy soils in Fujian Province, China. The 16S rRNA gene sequence similarities between strains SG184T, SG263T, and the related type strain Geothrix fermentans DSM 14018T were 98.6% and 99.1%, respectively. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) between the two strains and G. fermentans DSM 14018T were below the cut-off level (95% for ANI and 70% for dDDH) recommended as the criterion for interspecies taxon affiliation. Further, phylogenetic and phylogenomic trees indicated that strains SG184T and SG263T clustered with the member of the genus Geothrix. The menaquinone was MK-8, and the main fatty acids were iso-C15:0 and iso-C13:0 3OH. The genomic DNA G + C content of SG184T and SG263T was 68.07% and 68.05%, respectively. Additionally, two strains had iron reduction ability and could reduce ferrihydrite to ferrous iron. Based on the morphological, biochemical, chemotaxonomic and genome analysis, the two isolated strains represent two novel species of the genus Geothrix, for which the names Geothrix terrae sp. nov. and Geothrix alkalitolerans sp. nov. are proposed. The type strains are SG184T (= GDMCC1.3134 T = JCM39321T) and SG263T (= GDMCC 1.3316 T = JCM 39325T), respectively.
巻・号 204(12)
ページ 699
公開日 2022-11-11
DOI 10.1007/s00203-022-03293-y
PII 10.1007/s00203-022-03293-y
PMID 36357805
MeSH Bacteria / genetics Bacterial Typing Techniques DNA, Bacterial / genetics Fatty Acids / analysis Iron Phylogeny RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Soil* Soil Microbiology*
リソース情報
一般微生物 JCM 39321 テ「ツ€ツ雨CM 39325