Table 1.
Biological and physiological functions of AHL molecules.
| AHL molecules | Biological and physiological functions | Bacteria/host | References |
|---|---|---|---|
| C4-HSL | Tissue infection; biofilm formation | Vibrio vulnificus; Vibrio sinaloensis | Valiente et al., 2009; Tan P. W. et al., 2014 |
| C6-HSL | Biofouling; bacterial cells attachment; multidrug resistance; carpospore liberation; pili assembly | Bosea massiliensis; Escherichia coli; Bacteroides fragilis; Shewanella algae; Acinetobacter baumannii | Pumbwe et al., 2008; Luo et al., 2015; Okutsu et al., 2015; Singh et al., 2015; Jamuna and Ravishankar, 2016 |
| 3-OH-C6-HSL | Phenazine production | Pseudomonas chlororaphis subsp. aurantiaca | Morohoshi et al., 2017 |
| 3-oxo-C6-HSL | Bioluminescence; pigmentation; prodigiosin production; biofouling | V. fischeri; Serratia marcescens; B. massiliensis | Eberhard et al., 1981; Horng et al., 2002; Okutsu et al., 2015 |
| C8-HSL | Sliding motility; biofilm formation; oxidative stress protection | S. marcescens; P. aeruginosa; Burkholderia pseudomallei | Horng et al., 2002; Lumjiaktase et al., 2006; Abbas et al., 2007 |
| 3-oxo-C8-HSL | Violacein production; biofouling | Pseudoalteromonas ulvae; B. massiliensis | Mireille Aye et al., 2015; Okutsu et al., 2015 |
| C10-HSL | Biofouling; extracellular hydrolytic enzymes production; plant virulence and pathogenicity; biofilm formation; primary root length inhibition | Lysobacter sp.; Pantoea ananatis; Pseudomonas fuscovaginae; Serratia liquefaciens; Aeromonas sobria; Arabidopsis thaliana (host) | Mattiuzzo et al., 2011; Zhao et al., 2014; Jatt et al., 2015; Okutsu et al., 2015; Zhang et al., 2016 |
| 3-oxo-C10-HSL | Mupirocin resistance; biofouling; extracellular protease activation; hemolysin activation | Pseudomonas fluorescens; Lysobacter sp.; Vibrio fluvialis | El-Sayed et al., 2001; Wang et al., 2013; Okutsu et al., 2015 |
| C12-HSL | Biofilm formation; plant virulence factor activation; bacterial pathogenicity | S. enteritidis; P. fuscovaginae | Mattiuzzo et al., 2011; Campos-Galvao et al., 2016 |
| 3-OH-C12-HSL | Biofilm formation; bacterial pathogenicity | Vibrio scophthalmi | Garcia-Aljaro et al., 2012 |
| 3-oxo-C12-HSL | Inflammation; immune response activation; host immune response activation; swimming and adhesion inhibition; biofilm formation | P. aeruginosa; P. ulvae; A. hydrophila | Khajanchi et al., 2009; Vikstrom et al., 2009; Davis et al., 2010; Mireille Aye et al., 2015 |
| 3-oxo-C14-HSL | Callose deposition; accumulation of phenolic compounds; lignification of cell walls enhancement; modulation of membrane dipole potential | P. aeruginosa; Arabidopsis thaliana (host) | Davis et al., 2010; Schenk et al., 2014 |
| 3-OH-C14-HSL | Plant pigmentation | Rhodospirillum rubrum | Mastroleo et al., 2013 |