Characterization of arbuscular mycorrhizal fungal communities associated withvineyards in northwestern Iran

Arbuscular mycorrhizal fungi (AMF) establish beneficial symbiotic associations with plants, enhancing their nutrient uptake, growth, and stress tolerance. The present study was aimed to investigate AMF spore density, species composition, colonization patterns, correlation of these indices soil physicochemical parameters at four vineyards located in one the most important grape-producing regions Iran (West Azerbaijan province). Forty-three samples were collected from grapeproducing during July-August 2019. total abundance ranged 39-647 spores per 100 g dry soil. Twelve species, representing six genera (Rhizophagus, Funneliformis, Glomus, Septoglomus, Claroideoglomus, Scutellospora) identified. Rhizophagus fasciculatus frequently found a frequency 75%. Two identified G. glomerulatum Scutellospora calospora are new for mycoflora Iran. Significant negative correlations detected between attributes [spore (F%) as well intensity (M%)] phosphorus content. results provide insights into communities dynamics influenced by parameters, improving our understanding biological fertility grape production systems.