Fibrobacter

Fibrobacter

Fibrobacter
Scientific classification Edit this classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Fibrobacterota
Class: Fibrobacteria
Order: Fibrobacteriales
Family: Fibrobacteraceae
Genus: Fibrobacter
Montgomery et al. 1988[1]
Type species
Fibrobacter succinogenes
(Hungate 1950) Montgomery et al. 1988
Species[1]

Fibrobacter is a genus of Gram-negative, rod-shaped and obligately anaerobic bacteria in the family Fibrobacteraceae of the phylum Fibrobacterota. Members of the genus degrade cellulose and other plant cell-wall polysaccharides and occur in the gastrointestinal tracts of herbivorous mammals.[2]

The genus contains two species with validly published names: Fibrobacter intestinalis and Fibrobacter succinogenes.[1] F. succinogenes, the type species, is commonly associated with the rumen, whereas strains of F. intestinalis have been isolated from the lower intestinal tracts of non-ruminant animals.[3] Genome comparisons have identified substantial diversity among cultured strains and differences in the numbers of genes encoding carbohydrate-active enzymes between lineages associated with the rumen and hindgut.[4]

Taxonomy

The genus was established in 1988 after comparison of 16S rRNA sequences showed that the species then known as Bacteroides succinogenes was not closely related to the type species of Bacteroides. It was transferred to Fibrobacter as F. succinogenes, and F. intestinalis was described at the same time.[3]

The name Fibrobacter combines the Latin word fibra, meaning "fibre" or "filament", with the Neo-Latin word bacter, meaning "rod", referring to a rod-shaped bacterium that subsists on fibre.[1]

References

  1. ^ a b c d Fibrobacter in LPSN; Freese, H. M.; Meier-Kolthoff, J. P.; Sardà Carbasse, J.; Afolayan, A. O.; Göker, M. (29 October 2025). "TYGS and LPSN in 2025: a Global Core Biodata Resource for genome-based classification and nomenclature of prokaryotes within DSMZ Digital Diversity". Nucleic Acids Research. 53: D1–D12. doi:10.1093/nar/gkaf1110.
  2. ^ Ransom-Jones, Emma; Jones, David L.; McCarthy, Alan J.; McDonald, James E. (2012). "The Fibrobacteres: an important phylum of cellulose-degrading bacteria". Microbial Ecology. 63 (2): 267–281. doi:10.1007/s00248-011-9998-1. PMID 22213055.
  3. ^ a b Montgomery, Larry; Flesher, Berdena; Stahl, David A. (1988). "Transfer of Bacteroides succinogenes (Hungate) to Fibrobacter gen. nov. as Fibrobacter succinogenes comb. nov. and description of Fibrobacter intestinalis sp. nov". International Journal of Systematic Bacteriology. 38 (4): 430–435. doi:10.1099/00207713-38-4-430.
  4. ^ Neumann, Anthony P.; Suen, Garret (2018). "The phylogenomic diversity of herbivore-associated Fibrobacter spp. is correlated to lignocellulose-degrading potential". mSphere. 3 (6) e00593-18. doi:10.1128/mSphere.00593-18. PMC 6291624. PMID 30541780.

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