However, colonization was lower when plants were grown under nonsterile conditions, especially in the shoot tissues.
Recovery of T. stromaticum from field-grown trees showed that isolates belonging to genetic group II are more persistent (>120 days) as endophytes than isolates from group I. Endophytic colonization of cacao plants by T. stromaticum did not result in plant growth promotion nor induced resistance against M. perniciosa on seedlings that had been treated 30 days prior to application of the pathogen.