Article (Scientific journals)
Stimulation of Fengycin-Type Antifungal Lipopeptides in Bacillus amyloliquefaciens in the Presence of the Maize Fungal Pathogen Rhizomucor variabilis.
Zihalirwa Kulimushi, Parent; Arguelles Arias, Anthony; Franzil, Laurent et al.
2017In Frontiers in Microbiology, 8, p. 850
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Keywords :
Bacillus; Rhizomucor; biological control; fengycin; signaling
Abstract :
[en] Most isolates belonging to the Bacillus amyloliquefaciens subsp. plantarum clade retain the potential to produce a vast array of structurally diverse antimicrobial compounds that largely contribute to their efficacy as biocontrol agents against numerous plant fungal pathogens. In that context, the role of cyclic lipopeptides (CLPs) has been well-documented but still little is known about the impact of interactions with other soil-inhabiting microbes on the expression of these molecules. In this work, we wanted to investigate the antagonistic activity developed by this bacterium against Rhizomucor variabilis, a pathogen isolated from diseased maize cobs in Democratic Republic of Congo. Our data show that fengycins are the major compounds involved in the inhibitory activity but also that production of this type of CLP is significantly upregulated when co-cultured with the fungus compared to pure cultures. B. amyloliquefaciens is thus able to perceive fungal molecules that are emitted and, as a response, up-regulates the biosynthesis of some specific components of its antimicrobial arsenal.
Disciplines :
Microbiology
Author, co-author :
Zihalirwa Kulimushi, Parent 
Arguelles Arias, Anthony ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Microbial, food and biobased technologies
Franzil, Laurent
Steels, Sebastien
Ongena, Marc ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Microbial, food and biobased technologies
Language :
English
Title :
Stimulation of Fengycin-Type Antifungal Lipopeptides in Bacillus amyloliquefaciens in the Presence of the Maize Fungal Pathogen Rhizomucor variabilis.
Publication date :
2017
Journal title :
Frontiers in Microbiology
eISSN :
1664-302X
Publisher :
Frontiers, Lausanne, Switzerland
Volume :
8
Pages :
850
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 February 2018

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