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Interactions between dark septate endophytes, ectomycorrhizal fungi and root pathogens in vitro.

Authors :
Berthelot, Charlotte
Leyval, Corinne
Chalot, Michel
Blaudez, Damien
Source :
FEMS Microbiology Letters. Jul2019, Vol. 366 Issue 13, pN.PAG-N.PAG. 1p. 1 Color Photograph, 4 Graphs.
Publication Year :
2019

Abstract

Dark septate endophytes (DSEs) are widely distributed worldwide and can promote plant growth. Therefore, they are considered potentially important plant allies, especially in stressful environments. Previous studies have reported that DSEs cohabit roots with other microorganisms such as ectomycorrhizal (ECM), endophytic and pathogenic fungi/oomycetes. However, interactions between different DSE species have not yet been reported, and studies on the interactions between DSEs and other fungi are scarce. Using a simple and reproducible pairwise growth assay in vitro , we studied the synergistic/antagonistic interactions between eight DSEs, two ECM fungi and three root pathogens. Most of the DSE/DSE outcomes were neutral. Interestingly, we identified several DSE strains acting in synergy with other strains, as well as strains that could potentially act as biocontrol agents. Notably, three metal-tolerant DSE strains, namely, Cadophora sp. Leptodontidium sp. and Phialophora mustea , could decrease the growth of the root phytopathogens Pythium intermedium , Phytophthora citricola and Heterobasidion annosum. The present data are discussed in the general context of the use of fungal consortia as inocula in the tree-based phytomanagement of marginal lands. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
03781097
Volume :
366
Issue :
13
Database :
Academic Search Index
Journal :
FEMS Microbiology Letters
Publication Type :
Academic Journal
Accession number :
138297205
Full Text :
https://doi.org/10.1093/femsle/fnz158