[en] Microbial natural products are widely explored for their therapeutic potential. Understanding the underlying evolutionary and adaptive forces driving their production remains a fundamental question in biology. Amphiphilic cyclic lipopeptides (CLPs), a prominent category of bacterial specialized metabolites, show strong antimicrobial activity, particularly against phytopathogens. It is thus assumed that these compounds are deployed by soil- or rhizosphere-dwelling bacteria as microbial weapons in competitive natural environments. Here, we challenge this reductionist perspective and present evidence that Bacillus CLPs are prominent chemical mediators of ecological interactions. They help Bacillus to communicate, compete, defend against predators, or cooperate and establish mutualistic relationships with other (micro)organisms. Additional parallel examples are highlighted in other genera, such as Pseudomonas. This broader perspective underscores the need for further investigation into the role of CLPs in shaping the adaptive strategies of key rhizobacterial species.
Höfte, Monica ✱; Laboratory of Phytopathology, Faculty of Bioscience Engineering, Ghent University, Ghent, 9000, Belgium
Arguelles-Arias, Anthony; Microbial Processes and Interactions laboratory, TERRA Research Centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux, 5030, Belgium
Deleu, Magali ✱; Université de Liège - ULiège > TERRA Research Centre > Chemistry for Sustainable Food and Environmental Systems (CSFES)
Ongena, Marc ✱; Université de Liège - ULiège > TERRA Research Centre > Microbial technologies
✱ These authors have contributed equally to this work.
Language :
English
Title :
Bacillus lipopeptides as key players in rhizosphere chemical ecology.
F.R.S.-FNRS - Fonds de la Recherche Scientifique Interreg Europe
Funding text :
The authors would like to thank Thibault Meyer, Gregory Hoff, and Guillaume Gilliard for insightful discussions during the preparation of this review. G.B. is recipient of a FRIA fellowship at the F.R.S.-FNRS (National Fund for Scientific Research in Belgium). M.D. and M.O. are respectively senior research associate and research director at F.R.S.-FNRS. Work in the laboratory of M.O. was supported by the EU Interreg V France-Wallonie-Vlaanderen portfolio SmartBiocontrol (Agreement grant No. 731077 ), the PDR research project ID 26084552 and the EOS project ID 30650620 (FWO/F.R.S.-FNRS).
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