Related Experiment Video
Updated: May 6, 2026

Adherence of Bacteria to Plant Surfaces Measured in the Laboratory
Published on: June 19, 2018
Quorum sensing activity of Enterobacter asburiae isolated from lettuce leaves
Yin Yin Lau1, Joanita Sulaiman, Jian Woon Chen
1Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia. kokgan@um.edu.my.
Abstract:
Bacterial communication or quorum sensing (QS) is achieved via sensing of QS signaling molecules consisting of oligopeptides in Gram-positive bacteria and N-acyl homoserine lactones (AHL) in most Gram-negative bacteria. In this study, Enterobacteriaceae isolates from Batavia lettuce were screened for AHL production. Enterobacter asburiae, identified by matrix-assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF-MS) was found to produce short chain AHLs. High resolution triple quadrupole liquid chromatography mass spectrometry (LC/MS) analysis of the E. asburiae spent supernatant confirmed the production of N-butanoyl homoserine lactone (C4-HSL) and N-hexanoyl homoserine lactone (C6-HSL). To the best of our knowledge, this is the first report of AHL production by E. asburiae.
More Related Videos
Related Concept Videos
Gene Regulation in Microbial Communities: Quorum Sensing
Bacterial Signaling
Stringent Response in E. coli
Bacterial Gastroenteritis

