Niabella hirudinis and Niabella drilacis sp. nov., isolated from the medicinal leech Hirudo verbana.
(2013) Niabella hirudinis and Niabella drilacis sp. nov., isolated from the medicinal leech Hirudo verbana. Int J Syst Evol Microbiol 63(Pt 9), 3487-3493.
Two Gram-negative, rod-shaped bacteria, strains E96(T) and E90(T), were isolated from medicinal leeches (Hirudo verbana) and characterized by a polyphasic taxonomic approach. Phylogenetic analysis based on the nearly full-length 16S rRNA gene sequence showed that the two strains shared 98.1% sequence similarity and were affiliated with the genus Niabella within the phylum Bacteroidetes, with 94.4-97.6% sequence similarity to type strains of species of the genus Niabella and highest sequence similarity to the type strain of Niabella aurantiaca (97.3 and 97.6%, respectively). Niabella-related 16S rRNA gene sequences were recently detected in the bladders of Hirudo verbana; however, no cultured representatives were so far available. Genomic fingerprint analysis using repetitive element primed (rep)- and randomly amplified polymorphic DNA (RAPD)-PCRs and DNA-DNA hybridization experiments clearly showed that the strains were different from each other (DNA-DNA relatedness values of 39.1%, reciprocal 28.0%) and from the type strains of N. aurantiaca (
doi: 10.1099/ijs.0.050823-0 PMID: 23543503