Expanding the Trichoderma harzianum species complex: Three new species from Argentine natural and cultivated ecosystems
Fecha
2021-06-22
Tipo
artículo original
Autores
Barrera, Viviana Andera
Iannone, Leopoldo Javier
Romero, Andrea Irene
Chaverri Echandi, Priscila
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Resumen
A study was performed on a collection of 84 isolates from decaying plant tissues and soils in
Argentina previously identified as Trichoderma harzianum. Based on multiple phenotypic characters
and multilocus phylogenetic analyses, 10 species were distinguished, three of which are described
as new species: T. austroindianum, T. hortense, and T. syagri. Among the remaining seven identified
species, the following five can be added to the Argentine mycobiota: T. afarasin, T. afroharzianum,
T. endophyticum, T. guizhouense, and T. neotropicale. Trichoderma afroharzianum and
T. endophyticum were the most frequent species found in the samples. In addition, a collection of
isolates previously identified as T. harzianum with antagonistic abilities were reidentified as
T. afroharzianum, thus highlighting the importance of correct identification of biocontrol species.
Descripción
Palabras clave
Actin, Calmodulin, Phylogeny, Systematics, Taxonomy, Translation elongation factor 1 alfa, 3 new taxa