Clostridium chrysemydis sp. nov., isolated from the faecal material of a painted turtle

A strict anaerobic, Gram- stain- positive rod- shaped bacterium, designated PTT, was isolated from the faecal material of a painted turtle (Chrysemys picta). Based on a comparative 16S rRNA gene sequence analysis, the isolate was assigned to Clostridium sensu stricto with the highest sequence similarities to Clostridium moniliforme (97.4 %), Clostridium sardiniense (97.2 %) and the misclassified organism Eubacterium multiforme (97.1 %). The predominant cellular fatty acids of strain PTT were C14:0, C16: 0 and an unidentified product with an equivalent chain length of 14.969. The G+C content determined from the genome was 28.8 mol%. The fermentation end products from glucose were acetate and butyrate with no alcohols detected and trace amounts of CO2 and H2 also detected; no respiratory quinones were detected. Based on biochemical, phylogenetic, genotypic and chemotaxonomic criteria, the isolate represents a novel species of the genus Clostridium for which the name Clostridium chrysemydis sp. nov. is proposed. The type strain is strain PTT (=CCUG 74180T=ATCC TSD-219T).

Automated summary

A novel species of the genus Clostridium, named Clostridium chrysemydis, was isolated from the fecal material of a painted turtle. This strictly anaerobic, Gram-positive rod-shaped bacterium has a predominant cellular fatty acids composition of C14:0 and C16:0, with a G+C content of 28.8 mol%.