Syntrophomonas erecta sporosyntropha Wu et al. 2006 Wu C. Liu X. Dong X. Syntrophomonas erecta subsp. sporosyntropha subsp. nov., a spore-forming bacterium that degrades short chain fatty acids in co-culture with methanogens 2006 29 6 457 462 Systematic and Applied Microbiology Syst Appl Microbiol 0723-2020 10.1016/j.syapm.2006.01.003 16455220