Nuevos registros de Trichoderma crassum para México y su variación morfológica en diferentes ecosistemas

Trichoderma fungi are used as biocontrol agents and as a secondary metabolites source. In this study we report the morphological and molecular identification including DNA sequences from ITS and tef1 genes of six Hypocrea crassa/Trichoderma crassum strains isolated from an agricultural ecosystem cultivated with banana (Musa spp.) and four from a tropical semideciduous forest ecosystem located in the Papaloapan region. The soil physicochemical characteristics of its habitat were determined.