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Plant-mycorrhizal fungus co-occurrence network lacks substantial structure [Oikos]

par Frédéric Magné - publié le

The interactions between plants and arbuscular mycorrhizal fungi (AMF) maintain a crucial link between macroscopic organisms and the soil microbial world. These interactions are of extreme importance for the diversity of plant communities and ecosystem functioning. Despite this importance, only recently has the structure of plant-AMF interaction networks been studied. These recent studies, which used genetic data, suggest that these networks are highly structured, very similar to plant-animal mutualistic networks. However, the assembly process of plant-AMF communities is still largely unknown, and an important feature of plant-AMF interactions has not been incorporated : they occur at an extremely localized scale. Studying plant-AMF networks in a spatial context seems therefore a crucial step.(...)

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