Molecular characterisation of fungal endophytic morphospecies associated with the indigenous forest tree, Theobroma gileri, in Ecuador
2008
Thomas, Sarah (Sarah E) | Crozier, Jayne | Catherine Aime, M. | Evans, H. C. | Holmes, Keith A.
Fungal endophytes were isolated from healthy stems and pods of Theobroma gileri, an alternative host of the frosty pod rot pathogen of cacao. Non-sporulating isolates were grouped into 46 different morphological species according to their colony morphology. Many of these morphospecies were assumed to be basidiomycetes and, therefore, were of particular interest. Basidiomycetous endophytes have received far less attention than ascomycetes and also have potential as biological control agents of the basidiomycetous pathogens of T. cacao: Moniliophthora roreri (frosty pod rot pathogen) and M. perniciosa (witches' broom disease). The morphospecies were further characterised by molecular analyses. Amplification of the nuLSU was undertaken for phylogenetic placement of these non-sporulating cultures and revealed a total of 31 different taxa of which 15 were basidiomycetes belonging to the class Agaricomycetes, and 16 ascomycetes primarily belonging to the Sordariomycetes.
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