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Mycorrhizal microbiomes

Complex microbial communities including both prokaryotes and eukaryotes colonize and interact with mycorrhizal fungal hyphae, sporocarps/fruitbodies, or the mycorrhizosphere. These microbial communities could well be responsible for positive, as well as negative interactions with the establishment, development and function of mycorrhizal symbioses. Research on mycorrhizal microbiomes has been particularly facilitated by recent explosion of cultivation-independent and high-throughput molecular genetic approaches to identify total and active microbial communities at the scales from single cells to ecosystems, and by using isotope labeling and advanced microscopy techniques. This session shall cover a range of subjects, focusing on the strength of association of mycorrhizal fungi and other microbes (from loose to tight), including mycorrhizal-helper bacteria, facilitation and competition for resources with saprophytic soil microbes, cross-feeding, trophic cascades as well as endocellular symbionts (bacteria-like organelles) within the hyphae of mycorrhizal fungi, stressing the perspective on function and spatial arrangements.

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