AbstractMicroorganisms stimulating the establishment of mycorrhizal symbiosis (a review).A review of the literature on the relationships between rhizospheric microbial communities and mycorrhizal development shows very strong interactions. Many cases of stimulation by microorganisms of the symbiosis establishment and stability have been reported. The stimulating microorganisms of the symbiosis establishment and stability have been reported. The stimulating microorganisms belong to a wide range of taxonomic groups and some of them are very closely associated with the mycorrhizal fungus in its symbiotic form, suggesting a co‐evolution toward mutual benefit. The positive interactions can be the result of a number of mechanisms: direct trophic effects, detoxication, indirect effects through action on the root, antagonism to other microorganisms inhibiting the mycorrhizal development. The practical implications of the present knowledge on the subject are discussed, leading to the conclusion that some sort of integrated biological control of mycorrhizal symbioses is worth developing, in order to improve the efficiency of mycorrhizal inoculatio
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