Biology:Listeria grayi
| Listeria grayi | |
|---|---|
Scientific classification 
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| Domain: | Bacteria |
| Phylum: | Bacillota |
| Class: | Bacilli |
| Order: | Bacillales |
| Family: | Listeriaceae |
| Genus: | Listeria |
| Species: | L. grayi
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| Binomial name | |
| Listeria grayi Larsen et al. 1966[1]
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Listeria grayi is a species of bacteria. It is a Gram-positive, facultatively anaerobic, motile, non-spore-forming bacillus. It is non-hemolytic. The species was first proposed in 1966. It is named after M.L. Gray, an early researcher in L. monocytogenes[2] There are two subspecies of L. grayi: L. gray subs. grayi, and L. grayi subsp. murrayi.[3]
Listeria murrayi (named after a co-founder of L. monocytogenes) was originally a separate species of Listeria when proposed in 1971.[4] However, there was controversy over whether L. grayi and L. murrayi were the same species, or belonged in genus Listeria altogether. In 1974, researchers suggested that a new genus be created for the two species, called, Murraya,[5] although furthers studies by other researchers in 1987 proposed that the two species remain in Listeria.[6] In 1996, further studies showed that L. murrayi was a subspecies of L. grayi.[2]
References
- ↑ Larsen, H. E., & Seeliger, H. P. R. (1966). A mannitol fermenting Listeria: Listeria grayi sp. n. In Proceedings of the Third International Symposium on Listeriosis. Bilthoven.
- ↑ 2.0 2.1 Rocourt, J.; Boerlin, P.; Grimont, F.; Jacquet, C.; Piffaretti, J. C. (1992). "Assignment of Listeria grayi and Listeria murrayi to a single species, Listeria grayi, with a revised description of Listeria grayi". International Journal of Systematic Bacteriology 42 (1): 171–4. doi:10.1099/00207713-42-1-171. PMID 1736964.
- ↑ Sallen, B.; Rajoharison, A.; Desvarenne, S.; Quinn, F.; Mabilat, C. (1996). "Comparative analysis of 16S and 23S rRNA sequences of Listeria species". International Journal of Systematic Bacteriology 46 (3): 669–74. doi:10.1099/00207713-46-3-669. PMID 8782674.
- ↑ Welshimer, H. J.; Meredith, A. L. (1971). "Listeria murrayi. Sp. N.: A Nitrate-Reducing Mannitol-Fermenting Listeria". International Journal of Systematic Bacteriology 21: 3–7. doi:10.1099/00207713-21-1-3.
- ↑ Stuart, S. E.; Welshimer, H. J. (1974). "Taxonomic Reexamination of Listeria Pirie and Transfer of Listeria grayi and Listeria murrayi to a New Genus, Murraya". International Journal of Systematic Bacteriology 24 (2): 177–185. doi:10.1099/00207713-24-2-177.
- ↑ Rocourt, J.; Wehmeyer, U.; Cossart, P.; Stackebrandt, E. (1987). "Proposal to Retain Listeria murrayi and Listeria grayi in the Genus Listeria". International Journal of Systematic Bacteriology 37 (3): 298–300. doi:10.1099/00207713-37-3-298.
External links
Wikidata ☰ Q3834923 entry
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