Quorum-quenching endophytic bacteria inhibit disease caused by Pseudomonas syringae pv. syringae in Citrus cultivars.

Journal of Basic Microbiology
Seyyedeh Leila Akbari KiaroodSaeid Nasrollanejad

Abstract

Two strains of 64 endophytic bacteria, Bacillus cereus Si-Ps1 and Pseudomonas azotoformans La-Pot3-3, isolated from Citrus sinensis and C. sinensis var. Thomson's leaves, respectively, reduced N-acyl homoserine-based quorum sensing in bioindicator strain Pseudomonas syringae pv. syringae (Pss) B728a and the biofilm production and swarming motility of field isolate Pss 3289. A homolog of aiiA gene encoding an AHL-lactonase was found in B. cereus (Si-Ps1), suggesting that this isolate can degrade the quorum-sensing signal molecules of Pss 3289. The crude extract of endophytic bacterium, B. cereus (Si-Ps1), inhibited Pss 3289 biofilm formation after 48 and 96 h by 55% and 58%, respectively. Similar reductions in biofilm formation were conferred by crude extracts of P. azotoformans (La-Pot3-3). Correspondingly, the number of planktonic cells in cultures treated with these extracts was higher than in control cultures, indicating a direct effect on biofilm formation and not on cell growth. In greenhouse assays, the virulence of Pss 3289 to different citrus cultivars was decreased when coinoculated with these endophytic bacteria.

References

Feb 13, 1999·FEMS Microbiology Letters·E A Emmert, J Handelsman
Mar 28, 2002·Applied and Environmental Microbiology·Yi-Hu DongLian-Hui Zhang
Feb 4, 2003·Nature Reviews. Drug Discovery·David Davies
Oct 9, 2003·Applied and Environmental Microbiology·Jean J HuangJared R Leadbetter
Sep 29, 2004·FEMS Microbiology Reviews·Ruth DanielsJan Michiels
Jan 11, 2005·Trends in Microbiology·Christophe Beloin, Jean-Marc Ghigo
Jul 27, 2005·Molecular Plant-microbe Interactions : MPMI·Beatriz QuiñonesSteven E Lindow
Oct 1, 1987·Applied and Environmental Microbiology·D M Haefele, S E Lindow
May 1, 1993·Applied and Environmental Microbiology·S E LindowG A Beattie
Sep 18, 2007·Advances in Applied Microbiology·Yevgeniy TurovskiyMichael L Chikindas
Nov 11, 2008·Applied and Environmental Microbiology·Ryan W Shepherd, Steven E Lindow
Jun 18, 2010·Environmental Microbiology·Glenn F J DullaSteven E Lindow
Jan 29, 2011·Critical Reviews in Microbiology·Vipin Chandra Kalia, Hemant J Purohit
Dec 25, 2012·Journal of Bacteriology·Jonathan D Partridge, Rasika M Harshey
Feb 27, 2016·PloS One·Farid BeikiElena García-Valdés
Sep 2, 2015·Journal of Neuromuscular Diseases·Edoardo MalfattiJocelyn Laporte

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Related Feeds

Biofilms

Biofilms are adherent bacterial communities embedded in a polymer matrix and can cause persistent human infections that are highly resistant to antibiotics. Discover the latest research on Biofilms here.