The biology and chemistry of a mutualism between a soil bacterium and a mycorrhizal fungus.

Autor:	Anckaert A; Microbial Processes and Interactions Laboratory, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, Avenue de la Faculté d'Agronomie, Bat. 9B, 5030 Gembloux, Belgique. Electronic address: adrien.anckaert@uliege.be., Declerck S; Laboratory of Mycology, Earth and Life Institute, Université catholique de Louvain-UCLouvain, Croix du Sud 2, L7.05.06, 1348 Louvain-la-Neuve, Belgique., Poussart LA; Microbial Processes and Interactions Laboratory, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, Avenue de la Faculté d'Agronomie, Bat. 9B, 5030 Gembloux, Belgique., Lambert S; Microbial Processes and Interactions Laboratory, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, Avenue de la Faculté d'Agronomie, Bat. 9B, 5030 Gembloux, Belgique., Helmus C; Microbial Processes and Interactions Laboratory, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, Avenue de la Faculté d'Agronomie, Bat. 9B, 5030 Gembloux, Belgique., Boubsi F; Microbial Processes and Interactions Laboratory, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, Avenue de la Faculté d'Agronomie, Bat. 9B, 5030 Gembloux, Belgique., Steels S; Microbial Processes and Interactions Laboratory, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, Avenue de la Faculté d'Agronomie, Bat. 9B, 5030 Gembloux, Belgique., Argüelles-Arias A; Microbial Processes and Interactions Laboratory, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, Avenue de la Faculté d'Agronomie, Bat. 9B, 5030 Gembloux, Belgique., Calonne-Salmon M; Laboratory of Mycology, Earth and Life Institute, Université catholique de Louvain-UCLouvain, Croix du Sud 2, L7.05.06, 1348 Louvain-la-Neuve, Belgique., Ongena M; Microbial Processes and Interactions Laboratory, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, Avenue de la Faculté d'Agronomie, Bat. 9B, 5030 Gembloux, Belgique. Electronic address: marc.ongena@uliege.be.
Jazyk:	angličtina
Zdroj:	Current biology : CB [Curr Biol] 2024 Oct 01. Date of Electronic Publication: 2024 Oct 01.
DOI:	10.1016/j.cub.2024.09.019
Abstrakt:	Arbuscular mycorrhizal (AM) fungi (e.g., Rhizophagus species) recruit specific bacterial species in their hyphosphere. However, the chemical interplay and the mutual benefit of this intricate partnership have not been investigated yet, especially as it involves bacteria known as strong producers of antifungal compounds such as Bacillus velezensis. Here, we show that the soil-dwelling B. velezensis migrates along the hyphal network of the AM fungus R. irregularis, forming biofilms and inducing cytoplasmic flow in the AM fungus that contributes to host plant root colonization by the bacterium. During hyphosphere colonization, R. irregularis modulates the biosynthesis of specialized metabolites in B. velezensis to ensure stable coexistence and as a mechanism to ward off mycoparasitic fungi and bacteria. These mutual benefits are extended into a tripartite context via the provision of enhanced protection to the host plant through the induction of systemic resistance. Competing Interests: Declaration of interests The authors declare no competing interests. (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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