Lipopeptides produced by Bacillus subtilis as new biocontrol products against fusariosis in ornamental plants

Environmental Science and Pollution Research International
Gabriela MihalacheFrançois Krier

Abstract

In this study, we have investigated the effects of three lipopeptides (fengycin, surfactin and mycosubtilin) produced by different strains of Bacillus subtilis against the phytopathogenic fungi Fusarium oxysporum f. sp. iridacearum, which affects the ornamental bulb plant populations of Iris sp. The antifungal effects were tested using minimum inhibitory concentration assay, determination of mycelium growth and spore germination inhibition rates. Also, in vivo tests on infected rhizomes and scanning electron microscopy were employed. Mycosubtilin alone and in combination with fengycin or/and surfactin showed potent inhibitory activity at concentrations as low as 5 μg ml-1 which is 100 times lower compared to Topsin M, a common chemical fungicide frequently used against fusariosis in ornamental plants. An enhancement of mycosubtilin antifungal activity was observed when it was used in combination with surfactin due to a synergistic effect. At a concentration of 20 μg ml-1, mycosubtilin inhibited the growth of the mycelium up to 49% and the spore germination ability up to 26% in comparison to control. In addition, significant changes on the macro- and micro-morphology have been observed. The antifungal activity is related to the ...Continue Reading

References

Apr 20, 2001·Journal of Applied Microbiology·A L MoyneS Tuzun
Aug 9, 2005·Applied and Environmental Microbiology·Valérie LeclèrePhilippe Jacques
Apr 13, 2007·Molecular Plant-microbe Interactions : MPMI·Diego RomeroAlejandro Pérez-García
Jul 6, 2007·Applied Microbiology and Biotechnology·J WangJ Yao
Feb 22, 2008·Trends in Microbiology·Marc Ongena, Philippe Jacques
Oct 7, 2008·Mycologia·G W T Wilson, M M Williamson
Mar 12, 2010·Applied Microbiology and Biotechnology·François CouttePascal Dhulster
Apr 16, 2013·Bioresource Technology·Max BéchetPhilippe Jacques
Apr 12, 2014·Applied Microbiology and Biotechnology·Jovana DeravelPhilippe Jacques
Jul 22, 2014·Molecular Plant Pathology·Giovanni FaraceStéphan Dorey
Jan 30, 2015·BioMed Research International·Khem Raj Meena, Shamsher S Kanwar
Oct 28, 2013·Soft Matter·Ian W HamleyPhilippe Jacques
Jul 17, 2015·Environmental Science and Pollution Research International·Ines MnifDhouha Ghribi

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Citations

Oct 31, 2018·Environmental Science and Pollution Research International·Dorra Ben AbdallahOlfa Frikha-Gargouri
May 20, 2021·Critical Reviews in Biotechnology·Moutoshi ChakrabortyTofazzal Islam
Jun 15, 2021·Frontiers in Bioengineering and Biotechnology·Jean-Sébastien GuezFrançois Coutte

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