Effect of bacterial quorum sensing and mechanism of antimicrobial resistance

Dantuluri Veerabhadra Raju, Aberam Nagarajan, Soumya Pandit, Moupriya Nag, Dibyajit Lahiri, Vijay Upadhye

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Biofilm is considered to be the protective environment of a large number of sessile microcolonies that protect the cells from various types of environmental stresses. The sessile microcolonies communicate through a density-dependent communication system known as quorum sensing (Q.S.). This mechanism results in the development of various compounds associated with the development of antimicrobial resistance. Antimicrobial resistance is the condition where the microbes develop resistance to the drug. The microbes can show resistance toward the drug in various processes, such as inactivating the drug and preventing its uptake by going through certain modifications in its cell wall. It uses a special pump in which once the drug enters the microbes it will pump out the drug through a special membrane pump. These can be classified according to the antimicrobial activity mechanism. Most antimicrobial agents tend to Impede the cell wall synthesis and inhibit the protein, nucleic acid synthesis and metabolic pathways inhibiting. The capability of the microbes to resist the antimicrobial agents either acquired naturally or from other microbes. Furthermore, various factors affect antimicrobial resistance, such as overuse of common antibiotics and improper prescription in which the broad-spectrum drug is prescribed. Overdosage of the antimicrobial agent can increase the patient's risk of getting infected by the pathogen, showing sensitivity to the drug. This review will focus on the mechanism of quorum sensing and the cause of the development of antimicrobial.

Original languageEnglish
Article number102409
JournalBiocatalysis and Agricultural Biotechnology
StatePublished - 1 Aug 2022
Externally publishedYes


  • Antimicrobial
  • Biofilm
  • Quorum sensing
  • Quorum sensing molecule
  • Resistance

ASJC Scopus subject areas

  • Biotechnology
  • Food Science
  • Bioengineering
  • Applied Microbiology and Biotechnology
  • Agronomy and Crop Science


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