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Scientific classification
Domain: Bacteria
Phylum: Elusimicrobia
Geissinger et al. 2010
  • Elusimicrobaeota Oren et al. 2015

The phylum Elusimicrobia, previously known as "Termite Group 1", has been shown to be widespread in different ecosystems like marine environment, sewage sludge, contaminated sites and soils. The high abundance of 'Elusimicrobia' representatives is only evidenced for the lineage of symbionts found in termites.[1]

The first organism to be cultured was Elusimicrobium minutum; however, other two species have been partially described and placed in a separate class, known as Endomicrobia.[2]


The phylogeny is based on 16S rRNA-based LTP release 123 by 'The All-Species Living Tree' Project.[3]


Elusimicrobium minutum Geissinger et al. 2010


Chloracidobacterium thermophilum Tank & Bryant 2015

Pyrinomonas methylaliphatogenes Crowe et al. 2014


Blastocatella fastidiosa Foesel, Rohde & Overmann 2013


A. kavangonensis Huber et al. 2014

A. famidurans Huber et al. 2014


The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) [4] and National Center for Biotechnology Information (NCBI)[5]

Notes: ♠ Strains found at the National Center for Biotechnology Information (NCBI) but not listed in the List of Prokaryotic names with Standing in Nomenclature (LSPN)


  1. ^ Herlemann, D.P.R.; Geissinger, O.; Brune, A. (2007). "The Termite Group I phylum is highly diverse and widespread in the environment.". Appl. Environ. Microbiol. 73 (20): 6682–6685. doi:10.1128/AEM.00712-07. PMC 2075069Freely accessible. PMID 17704269. 
  2. ^ Stingl, U.; et al. (2005). "Endomicrobia: Cytoplasmic Symbionts of Termite Gut Protozoa Form a Separate Phylum of Prokaryotes.". Appl. Environ. Microbiol. 71 (3): 1473–1479. doi:10.1128/AEM.71.3.1473-1479.2005. PMC 1065190Freely accessible. PMID 15746350. 
  3. ^ 'The All-Species Living Tree' Project."16S rRNA-based LTP release 123 (full tree)" (PDF). Silva Comprehensive Ribosomal RNA Database. Retrieved 2016-03-20. 
  4. ^ J.P. Euzéby. "Elusimicrobia". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2011-11-17. 
  5. ^ Sayers; et al. "Elusimicrobia". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2011-06-05.