Journal
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
Volume 42, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.bcab.2022.102337
Keywords
Phenazine gene; Phenolic compounds; Phluoroglucinol; Pyrogallol; Quorum sensing; Resorcinol; (Sukamto)
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Funding
- University of Zabol, Zabol, Iran [IR-UOZ-GR-2735]
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Biofilm formation is a major protective mechanism for microbial survival under stressed conditions, regulated by quorum sensing and phenazine genes. Compounds like phenolic and iron chelators negatively affect biofilm formation, while mutations in certain genes can cause bacteria to lose their ability to form biofilms. Additionally, Cdi-GMP plays a positive role in promoting irreversible attachment during biofilm formation.
Formation of biofilm is one of the major protective mechanisms of survival of microbes under stressed conditions. It is regulated by the quorum sensing (QS) and phenazine (phz) gene. The phenolic and iron chelators compounds negatively impacts the biofilm formation. They exert antiQS activity and disrupt biofilm forming genes. Mutations in oprD gene (an imipenem resistance factor), Psl, alginate, and Pel genes make bacteria lose their ability to form biofilms. Similarly, Cdi-GMP is the positive regulator of biofilm formation. It plays an equally positive role in transferring reversible to irreversible attachment during biofilm formation. Proteins such as GGDEF and EAL can control the production/non-production by regulating several systems. The potential of biofilm formation enables bacteria to show remarkable resistance against a wide range of antibiotics. Therefore, many studies are currently carried out to remove such resistant bacteria worldwide; hence, this research evaluates all molecular mechanisms regulating biofilm formation.
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