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Evaluation of Arbuscular Mycorrhizal Fungi from humid tropical areas of Ecuador

Abstract:

The study approached the symbiotic analysis among Arbuscular Mycorrhizal Fungi and trees of Ecuadorian humid tropics, through physical separation techniques spores were isloted to determinate the Arbuscular Mycorrhizal Fungi density per soils gram, also the mycorrhization percentage of representative flora was determinated by the presence of Mycorrhizal structures inside the evaluated plants roots, additionally, it was performanced a physical-chemistry analysis of soil. The different analyzes showed an average density of spores, a mycorrhization percentage over 50 % in the representative flora. The predominant genera of spores were taxonomically identified as Acaulospora, Ambispora, Claroideoglomus, Diversispora, Entrophospora, Funneliformis, Gigaspora, Glomus, Pacispora and Scutellospora, there has been about 15 species in selected zones. Concluding that there is a great diversity of arbuscular mycorrhizal fungi in the ecuadorian humid tropics.