ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]2014
Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk.
Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 39 citations in OpenAlex.
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- Quorum Sensing and Spoilage Potential of Psychrotrophic Enterobacteriaceae Isolated from Milk.BioMed research international · 2018Article
- Dynamics of Aspen Roots Colonization by Pseudomonads Reveals Strain-Specific and Mycorrhizal-Specific Patterns of Biofilm Formation.Frontiers in microbiology · 2018Article
- Contribution of the Pseudomonas fluorescens MFE01 Type VI Secretion System to Biofilm Formation.PloS one · 2017Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Numerous bacteria coordinate gene expression in response to small signalling molecules in many cases known as acylhomoserine lactones (AHLs), which accumulate as a function of cell density in a process known as quorum sensing. This work aimed to determine if phenotypes that are important to define microbial activity in foods such as biofilm formation, swarming motility and proteolytic activity of two Pseudomonas fluorescens strains, isolated from refrigerated raw milk, are influenced by AHL molecules. The tested P. fluorescens strains did not produce AHL molecules in none of the evaluated media. We found that biofilm formation was dependent on the culture media, but it was not influenced by AHLs. Our results indicate that biofilm formation, swarming motility and proteolytic activity of the tested P. fluorescens strains are not regulated by acyl-homoserine lactones. It is likely that AHL-dependent quorum sensing system is absent from these strains.
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