Megasphaera

Megasphaera is a genus of Bacillota bacteria classified within the class Negativicutes.[1][2]

Not to be confused with Magosphaera.

Megasphaera
Scientific classification
Domain:
Bacteria
Phylum:
Bacillota
Class:
Negativicutes
Order:
Veillonellales
Family:
Veillonellaceae
Genus:
Megasphaera

Rogosa 1971
Type species
Megasphaera elsdenii
(Gutierrez et al. 1959) Rogosa 1971
Species

See text

This classification has been reexamined.[3] It appears that this genus is a member of the Clostridia.

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[1] and National Center for Biotechnology Information (NCBI)[2]

16S rRNA based LTP_01_2022[4][5][6] 120 marker proteins based GTDB 07-RS207[7][8][9]
Megasphaera
 

M. micronuciformis Marchandin et al. 2003

 
 
 
 

M. hutchinsoni Srinivasan et al. 2021

 
 

M. lornae Srinivasan et al. 2021

 
 
 
 
 

M. massiliensis Padmanabhan et al. 2016

 
 
 

M. elsdenii (Gutierrez et al. 1959) Rogosa 1971

 
 

M. indica Lanjekar et al. 2014

 
 
 
 
 

M. hexanoica Jeon et al. 2017

 
 
 
 

M. paucivorans Juvonen and Suihko 2006

 
 

M. sueciensis Juvonen and Suihko 2006

 
 
 
 
 

Anaeroglobus geminatus Carlier et al. 2002

 
 

M. stantonii Maki & Looft 2018

 
 
 
 

M. cerevisiae Engelmann and Weiss 1986

 
 

M. vaginalis Srinivasan et al. 2021 non Bordigoni et al. 2020

 
 
 
 
 
 
 
 
 
 

Megasphaera paucivorans

 
 
Anaeroglobus
 

Megasphaera vaginalis

 
 
 

"Colibacter massiliensis" Mailhe et al. 2017

 
 
 

Megasphaera micronuciformis

 
 

Anaeroglobus geminatus

 
 
 
 
 
"Caecibacter"
 

"Megasphaera hominis"

 
 

"Caecibacter massiliensis" Ricaboni et al. 2017
(incl. Megasphaera hexanoica)

 
 
Megasphaera
 
 

M. hutchinsoni

 
 

M. lornae

 
 
 
 
 

M. cerevisiae

 
 

M. stantonii

 
 
 
 

M. elsdenii

 
 

M. massiliensis

 
 
 
 
 
 
 

Unassigned species:

  • "M. butyrica" Hitch et al. 2021
  • "M. vaginalis" Bordigoni et al. 2020 non Srinivasan et al. 2021

See also

References
  1. J.P. Euzéby. "Megasphaera". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2022-09-09.
  2. Sayers; et al. "Megasphaera". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2022-09-09.
  3. Yutin N, Galperin MY (2013) A genomic update on Clostridial phylogeny: Gram-negative spore formers and other misplaced Clostridia. Environ Microbiol doi: 10.1111/1462-2920.12173
  4. "The LTP". Retrieved 23 February 2022.
  5. "LTP_all tree in newick format". Retrieved 23 February 2022.
  6. "LTP_01_2022 Release Notes" (PDF). Retrieved 23 February 2022.
  7. "GTDB release 07-RS207". Genome Taxonomy Database. Retrieved 20 June 2022.
  8. "bac120_r207.sp_labels". Genome Taxonomy Database. Retrieved 20 June 2022.
  9. "Taxon History". Genome Taxonomy Database. Retrieved 20 June 2022.
  • Arik, H. D., Gulsen, N., Hayirli, A., & Alatas, M. S. (2019). Efficacy of Megasphaera elsdenii inoculation in subacute ruminal acidosis in cattle. Journal of animal physiology and animal nutrition, 103(2), 416–426.
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