Spirochaeta dissipatitropha Pikuta et al. 2009 Pikuta E.V. Hoover R.B. Bej A.K. Marsic D. Whitman W.B. Krader P. Spirochaeta dissipatitropha sp. nov., an alkaliphilic, obligately anaerobic bacterium, and emended description of the genus Spirochaeta Ehrenberg 1835 2009 59 7 1798 1804 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.016733-0 19578151