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LuxS quorum sensing system mediating Lactobacillus plantarum probiotic characteristics.
- Source :
-
Archives of Microbiology . Sep2021, Vol. 203 Issue 7, p4141-4148. 8p. - Publication Year :
- 2021
-
Abstract
- Lactobacillus plantarum is one of common probiotics in fermented foods. Quorum sensing (QS) is a common communication way within bacteria. It is not clear whether the probiotic properties of L. plantarum mediated by QS. Here, Lb. plantarum YM-4–3 was examined for resistance of pH, bile, antimicrobial and luxS gene expression pattern. The study found that: (1) the supernatant of YM-4–3 had bacteriostatic effect to Escherichia coli O157:H7, Listeria monocytogenes and Staphylococcus aureus; (2) Lb. plantarum YM-4–3 shown tolerance property to the strongest acid culture that pH value of 3; (3) the bile tolerance of Lb. plantarum YM-4–3 was significant difference with the growth stage, the early exponential phase of the growth culture can tolerate bile of 0.4% (w/v), while the stationary growth stage can only tolerate bile of 0.2%; (4) Lb. plantarum YM-4–3 luxS gene was contrary expression along with the growth. (5) Compared with the wild-type strain, the adhesion ability of Lb. plantarum YM-4–3 ΔluxS was decreased obviously. These results showed that AI-2 LuxS quorum sensing system mediating Lb. plantarum acid, bile tolerance, antimicrobial and adhesion of probiotics. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03028933
- Volume :
- 203
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Archives of Microbiology
- Publication Type :
- Academic Journal
- Accession number :
- 151880751
- Full Text :
- https://doi.org/10.1007/s00203-021-02404-5