@article{mbs:/content/journal/ijsem/10.1099/ijs.0.026963-0, author = "Mori, Koji and Suzuki, Ken-ichiro and Urabe, Tetsuro and Sugihara, Maki and Tanaka, Kenji and Hamada, Moriyuki and Hanada, Satoshi", title = "Thioprofundum hispidum sp. nov., an obligately chemolithoautotrophic sulfur-oxidizing gammaproteobacterium isolated from the hydrothermal field on Suiyo Seamount, and proposal of Thioalkalispiraceae fam. nov. in the order Chromatiales", journal= "International Journal of Systematic and Evolutionary Microbiology", year = "2011", volume = "61", number = "10", pages = "2412-2418", doi = "https://doi.org/10.1099/ijs.0.026963-0", url = "https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.026963-0", publisher = "Microbiology Society", issn = "1466-5034", type = "Journal Article", abstract = "A novel mesophilic, facultatively anaerobic, sulfur-oxidizing bacterial strain, designated gps61T, was isolated from a surface rock sample collected from the hydrothermal field of Suiyo Seamount on the Izu-Bonin Arc in the Western Pacific Ocean. Cells of the isolate were rod-shaped with a single sheathed polar flagellum. Neither extensive internal membranes nor storage materials were present in the cells. In a 20 % CO2 atmosphere, strain gps61T grew using thiosulfate, sulfur or tetrathionate as electron donors and oxygen or nitrate as electron acceptors. Other substrates, including organic acids and sugars, did not support growth, indicating that strain gps61T was an obligate chemolithoautotroph. 16S rRNA gene sequence analysis revealed that strain gps61T was closely related to Thioprofundum lithotrophicum 106T (98.5 % sequence similarity) in the order Chromatiales. Phylogenetic trees grouped strain gps61T and Thioprofundum lithotrophicum in the same cluster along with Thioalkalispira microaerophila and Thiohalophilus thiocyanoxidans, but it was apparent from the analysis that the novel strain had definitely departed from the family lineage. On the basis of its phylogenetic position along with its morphological and physiological characteristics, strain gps61T ( = NBRC 101261T  = DSM 18546T) represents a novel species of the genus Thioprofundum, for which the name Thioprofundum hispidum sp. nov. is proposed. In addition, we propose a novel family name, Thioalkalispiraceae, in the order Chromatiales, to accommodate the genera Thioalkalispira, Thiohalophilus and Thioprofundum.", }