Journal
FRONTIERS IN MICROBIOLOGY
Volume 11, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fmicb.2020.01350
Keywords
Bacillus; rhizosphere; bioactive secondary metabolites; microbial interaction; biocontrol; molecular cross-talk; phenotype modulation
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Funding
- Interreg FWVL V portfolio project SmartBiocontrol
- F.R.S. - FNRS Fonds National de la Recherche Scientifique [30650620]
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Some members of root-associatedBacillusspecies have been developed as biocontrol agents due to their contribution to plant protection by directly interfering with the growth of pathogens or by stimulating systemic resistance in their host. As rhizosphere-dwelling bacteria, these bacilli are surrounded and constantly interacting with other microbes via different types of communications. With this review, we provide an updated vision of the molecular and phenotypic responses ofBacillusupon sensing other rhizosphere microorganisms and/or their metabolites. We illustrate howBacillusspp. may react by modulating the production of secondary metabolites, such as cyclic lipopeptides or polyketides. On the other hand, some developmental processes, such as biofilm formation, motility, and sporulation may also be modified upon interaction, reflecting the adaptation ofBacillusmulticellular communities to microbial competitors for preserving their ecological persistence. This review also points out the limited data available and a global lack of knowledge indicating that more research is needed in order to, not only better understand the ecology of bacilli in their natural soil niche, but also to better assess and improve their promising biocontrol potential.
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