Abstract

TRIANA-VALLEJOS, Jairo Alberto; BAILON-AIJON, Concepción  and  CIFUENTES-CASTELLANOS, Johan Manuel. Morphological description and molecular characterization of fungi associated with the root of Masdevallia coccinea Linden ex Lindl. rev.udcaactual.divulg.cient. [online]. 2022, vol.25, n.1, e2098.  Epub June 13, 2022. ISSN 0123-4226.  https://doi.org/10.31910/rudca.v25.n1.2022.2098.

Masdevallia coccinea is a striking orchid, endemic to Colombia, used in the generation of ornamental hybrids, with more than a decade classified as an endangered species. Among the techniques used for in vitro and ex situ propagation of species of the Orchidaceae family, mycorrhizal symbiosis is studied, because this mycoheterotrophic family depends on a correlation with these fungi to survive in the early stages of development in the wild. In order to characterize and identify the fungi associated with the roots of M. coccinea, a histological study was carried out on roots and 10 isolates were morphologically, macroscopically and molecularly characterized from micropreparations. M. coccinea is identified as an orchid with different mycorrhizal colonization patterns and with possible endophytic effects of the genera Aspergillus, Scopulariopsis, Trichoderma, Ilyonectria and the order Xylariales under ex situ conditions.

Keywords : Endophytic fungi; Mycorrhiza; Orchid; Orchid fungi; Root colonization.

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