Lactobacillus paragasseri
| Lactobacillus paragasseri | |
|---|---|
Scientific classification 
| |
| Missing taxonomy template (fix): | Lactobacillus |
| Species: | Template:Taxonomy/LactobacillusL. paragasseri
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| Binomial name | |
| Template:Taxonomy/LactobacillusLactobacillus paragasseri Tanizawa et al. 2018[1]
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| Type strain | |
| ATCC 4963 = JCM 5343 = KCTC 3172 = LMG 11478 = NCFB 1375 = NCIMB 8931 = VPI 0334[1] | |
Lactobacillus paragasseri is a species of lactic acid bacterium in the family Lactobacillaceae. It is closely related to Lactobacillus gasseri. Its cells are Gram-positive, rod-shaped, non-motile, non-spore-forming, and catalase-negative.[2] The type strain is facultatively anaerobic and was isolated from human feces.[3]
Taxonomy
The species was delineated through a genome-based reassessment of strains JCM 5343T, JCM 5344, and JCM 1130, which had previously been identified as L. gasseri.[2] A later genomic survey found that the full-length 16S rRNA gene sequences of L. paragasseri and L. gasseri differ by only two nucleotides. Twenty publicly deposited genomes labelled as L. gasseri were reassigned to L. paragasseri using whole-genome comparisons.[4] Whole-genome data are therefore generally needed to distinguish the two species reliably.[4]
The specific epithet combines the Greek prefix para-, meaning resembling, with gasseri, the epithet of L. gasseri; the name therefore means “resembling Lactobacillus gasseri”.[1]
Characteristics
The strains used to delimit the species grow at temperatures from 25 to 45 °C and in medium containing 2.0% sodium chloride. Their major cellular fatty acids are C16:0 and C18:1 ω9c.[2] The type strain forms circular, grey-white colonies on MRS agar.[3]
Isolation sources
Genome metadata and associated literature have recorded L. paragasseri isolates from human stool and other gastrointestinal samples, the vaginal tract, urine, lung or aspirate samples, breast milk, a wound, and the oral cavity.[4]
The type strain, JCM 5343T, was isolated from human feces,[3] while strain JCM 5344 was isolated from the vaginal tract.[5] Genome-sequenced strains have also been cultured from catheterized and voided urine. Three strains were recovered from voided urine samples from women with type 2 diabetes.[6]
Genomic and biochemical studies
In a comparative analysis of 79 publicly available L. gasseri and L. paragasseri genome assemblies, every L. paragasseri genome examined contained genes for one or both of the bacteriocins gassericin T and gassericin S.[4]
In vitro characterization of the type strain identified a bile salt hydrolase that hydrolyzed conjugated bile salts and also showed activity against penicillin.[7]
References
- ↑ 1.0 1.1 1.2 "Species: Lactobacillus paragasseri". List of Prokaryotic names with Standing in Nomenclature. Leibniz Institute DSMZ. Retrieved 14 August 2026.
- ↑ 2.0 2.1 2.2 Tanizawa, Yasuhiro; Tada, Ipputa; Kobayashi, Hisami; Endo, Akihito; Maeno, Shintaro; Toyoda, Atsushi; Arita, Masanori; Nakamura, Yasukazu; Sakamoto, Mitsuo; Ohkuma, Moriya; Tohno, Masanori (2018). "Lactobacillus paragasseri sp. nov., a sister taxon of Lactobacillus gasseri, based on whole-genome sequence analyses". International Journal of Systematic and Evolutionary Microbiology. 68 (11): 3512–3517. doi:10.1099/ijsem.0.003020. PMID 30226464.
- ↑ 3.0 3.1 3.2 "Lactobacillus paragasseri 5". BacDive. Leibniz Institute DSMZ. Retrieved 14 August 2026.
- ↑ 4.0 4.1 4.2 4.3 Ene, Adriana; Stegman, Natalie; Wolfe, Alan J.; Putonti, Catherine (2022). "Genomic insights into Lactobacillus gasseri and Lactobacillus paragasseri". PeerJ. 10. doi:10.7717/peerj.13479. PMC 9186330 Check
|pmc=value (help). PMID 35694384 Check|pmid=value (help). Unknown parameter|article-number=ignored (help) - ↑ "Lactobacillus paragasseri B3". BacDive. Leibniz Institute DSMZ. Retrieved 14 August 2026.
- ↑ Jackson, Briana; Stegman, Natalie; Sedano, Cerena; Steiling, Maria; Putonti, Catherine (2024). "Draft genome sequences of Lactobacillus paragasseri strains isolated from the female urinary tract". Microbiology Resource Announcements. 13 (2). doi:10.1128/mra.01123-23. PMID 38132637 Check
|pmid=value (help). Unknown parameter|article-number=ignored (help) - ↑ Kusada, Hiroyuki; Arita, Masanori; Tohno, Masanori; Tamaki, Hideyuki (2022). "Bile salt hydrolase degrades β-lactam antibiotics and confers antibiotic resistance on Lactobacillus paragasseri". Frontiers in Microbiology. 13. doi:10.3389/fmicb.2022.858263. PMC 9207391 Check
|pmc=value (help). PMID 35733973 Check|pmid=value (help). Unknown parameter|article-number=ignored (help)
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