エガセラ属

エガセラ属（Eggerthella）は、真正細菌の放線菌門コリオバクテリウム綱エガセラ目エガセラ科に属する属の一つである。 エガセラ属の菌種は好気性、非胞子形成性、非運動性、グラム陽性の単独或いは2連又は数個の連鎖桿菌である。ヒトの大腸と糞便から見出され、潰瘍性大腸炎、肝臓及び肛門の膿瘍、並びに全身性菌血症の原因の一つである。 基準株であるエガセラ・レンタ（Eggerthella lenta）は1999年以前はユウバクテリウム・レンツム（Eubacterium lentum）として知られていた。1980年以前の名前はバクテロイデス・レンツム（Bacteroides lentus）であり、この菌株を1935年に発見したArnold Eggerthに因んでこの属の名称は決められた。 エガセラ属細菌は識別が困難なため、特性が十分に知られていない。病原菌として、今後の研究が進められることが期待されている。全身に広がる疾病を引き起こす傾向が知られている。 ^ a b c William G. Wade, Julia Downes, David Dymock, Sarah J. Hiom, Andrew J. Weightman, Floyd E. Dewhirst, Bruce J. Paster, Nia Tzellas, Brittney Coleman (01 April 1999). “The family Coriobacteriaceae: reclassification of Eubacterium exiguum ( Poco etal. 1996 ) and Peptostreptococcus heliotrinreducens ( Lanigan 1976 ) as Slackia exigua gen. nov., comb. nov. and Slackia heliotrinireducens gen. nov., comb. nov., and Eubacterium lentum (Prevot 1938) as Eggerthella lenta gen. nov., comb. nov.”. International Journal of Systematic and Evolutionary Microbiology 49 (2): 595-600. doi:10.1099/00207713-49-2-595. PMID 10319481.  ^ a b c “Notification that new names and new combinations have appeared in volume 49, part 2, of the IJSB”. International Journal of Systematic and Evolutionary Microbiology 49 (3): 937-939. (01 July 1999). doi:10.1099/00207713-49-3-937.  ^ a b c Arnold H. Eggerth (1 September 1935). “The Gram-positive Non-spore-bearing Anaerobic Bacilli of Human Feces”. Journal of Bacteriology 30 (3): 277–299. doi:10.1128/jb.30.3.277-299.1935. PMC 543656. PMID 16559837. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC543656/.  ^ Yajun Ge, Jing Yang, Xin-He Lai, Dong Jin, Shan Lu, Gui Zhang, Ying Huang, Xuelian Luo, Han Zheng, Yuanmeihui Tao, Tingting Yuan, Lianfeng Li, Xiaoyan Zhang, Jianguo Xu (13 July 2021). “Enorma shizhengliae sp. nov. and Eggerthella guodeyinii sp. nov., two new members of the family Coriobacteriaceae”. International Journal of Systematic and Evolutionary Microbiology 71 (7): 4840. doi:10.1099/ijsem.0.004840. PMID 34255621.  ^ Aharon Oren, George M. Garrity (29 October 2021). “Notification that new names of prokaryotes, new combinations, and new taxonomic opinions have appeared in volume 71, part 7 of the IJSEM”. International Journal of Systematic and Evolutionary Microbiology 71 (10): 5006. doi:10.1099/ijsem.0.005006.  ^ a b Susanna K P Lau, Patrick C Y Woo, Gibson K S Woo, Ami M Y Fung, Michelle K M Wong, King-Man Chan, Dorothy M W Tam, Kwok-Yung Yuen (August 2004). “Eggerthella hongkongensis sp. nov. and eggerthella sinensis sp. nov., two novel Eggerthella species, account for half of the cases of Eggerthella bacteremia”. Diagnostic Microbiology and Infectious Disease 49 (4): 255-263. doi:10.1016/j.diagmicrobio.2004.04.012. PMID 15313530.  ^ “List of new names and new combinations previously effectively, but not validly, published”. International Journal of Systematic and Evolutionary Microbiology 56 (9): 2025-2027. (01 September 2006). doi:10.1099/ijs.0.64643-0.  ^ Dieco Würdemann, Brian J. Tindall, Rüdiger Pukall, Heinrich Lünsdorf, Carsten Strömpl, Theresa Namuth, Hannes Nahrstedt, Melissa Wos-Oxley, Stephan Ott, Stephan Schreiber, Kenneth N. Timmis, Andrew P. A. Oxley (01 June 2009). “Gordonibacter pamelaeae gen. nov., sp. nov., a new member of the Coriobacteriaceae isolated from a patient with Crohn's disease, and reclassification of Eggerthella hongkongensis Lau et al. 2006 as Paraeggerthella hongkongensis gen. nov., comb. nov.”. International Journal of Systematic and Evolutionary Microbiology 59 (6): 1405-1415. doi:10.1099/ijs.0.005900-0. PMID 19502325.  ^ “Genus Eggerthella”. List of Prokaryotic names with Standing in Nomenclature. 2023年1月11日閲覧。 ^ Susanna KP Lau, Patrick CY Woo, Ami MY Fung, King-man Chan, Gibson KS Woo, Kwok-yung Yuen (01 December 2004). “Anaerobic, non-sporulating, Gram-positive bacilli bacteraemia characterized by 16S rRNA gene sequencing”. Journal of Medical Microbiology 53 (Pt 12): 1247–1253. doi:10.1099/jmm.0.45803-0. PMID 15585505. http://jmm.sgmjournals.org/cgi/content/full/53/12/1247#H8-12.  ^ Susanna K P Lau, Patrick C Y Woo, Gibson K S Woo, Ami M Y Fung, Michelle K M Wong, King-Man Chan, Dorothy M W Tam, Kwok-Yung Yuen (August 2004). “Eggerthella hongkongensis sp. nov. and Eggerthella sinensis sp. nov., two novel Eggerthella species, account for half of the cases of Eggerthella bacteremia”. Diagnostic Microbiology and Infectious Disease 49 (4): 255–263. doi:10.1016/j.diagmicrobio.2004.04.012. PMID 15313530.  ^ Kageyama, A.; Y. Benno; T. Nakase (1999). “Phylogenetic evidence for the transfer of Eubacterium lentum to the genus Eggerthella as Eggerthella lenta gen. nov., comb. nov”. Int. J. Syst. Bacteriol. 49 (4): 1725–1732. doi:10.1099/00207713-49-4-1725. PMID 10555354. http://ijs.sgmjournals.org/cgi/content/abstract/49/4/1725.  ^ Moore, W. E. C; E.P. Cato; L.V. Holdeman (1971). “Eubacterium lentum (Eggerth) Prevot 1938: emendation of description and designation of the neotype strain”. Int. J. Syst. Bacteriol. 21 (4): 299–303. doi:10.1099/00207713-21-4-299.  ^ B. J. Gardiner, T. M. Korman, R. K. Junckerstorff (11 March 2014). “Eggerthella lenta Bacteremia Complicated by Spondylodiscitis, Psoas Abscess, and Meningitis”. Journal of Clinical Microbiology 52 (4): 1278-80. doi:10.1128/JCM.03158-13. PMC 3993484. PMID 24430458. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3993484/.  Euzéby (2007年). “Eggerthella”. List of Prokaryotic names with Standing in Nomenclature. 2007年11月23日閲覧。