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Paullinia cupana  is associated with a diverse community of pathogenic and endophytic microorganisms. We isolated and identified endophytic fungal communities from the roots and seeds of  P .  cupana  genotypes susceptible and tolerant to anthracnose that grow in two sites of the Brazilian Amazonia forest. We assessed the antibacterial, antitumor and genotoxic activity  in vitro  of compounds isolated from the strains  Trichoderma asperellum  (1BDA) and  Diaporthe phaseolorum  (8S). In concert, we identified eight fungal species not previously reported as endophytes; some fungal species capable of inhibiting pathogen growth; and the production of antibiotics and compounds with bacteriostatic activity against  Pseudomonas aeruginosa  in both susceptible and multiresistant host strains. The plant genotype, geographic location and specially the organ influenced the composition of  P .  cupana  endophytic fungal community. Together, our findings identify important functional roles of endophytic species found within the microbiome of  P .  cupana . This hypothesis requires experimental validation to propose management of this microbiome with the objective of promoting plant growth and protection.

Diversity of cultivable fungal endophytes in Paullinia cupana (Mart.) Ducke and bioactivity of their secondary metabolites