Microorganisms associated with epiphytic orchids in southern Ecuador (Loja and Zamora-Chinchipe provinces)

Ximena Galván; María de los Ángeles Paute; Stefania  Cevallos

doi:10.30550/j.lil/2360

Autores

Ximena Galván Universidad Técnica Particular de Loja (UTPL), Carrera de Bioquímica y Farmacia, Loja, provincia de Loja, Ecuador. https://orcid.org/0009-0008-5592-0601
María de los Ángeles Paute Universidad Técnica Particular de Loja (UTPL), Carrera de Bioquímica y Farmacia. Loja, provincia de Loja, Ecuador. https://orcid.org/0009-0001-9452-5101
Stefania Cevallos Universidad Técnica Particular de Loja (UTPL), Departamento de Ciencias Biológicas y Agropecuarias, Microbial Systems Ecology and Evolution (MS2E) Research Group. Loja, provincia de Loja, Ecuador. https://orcid.org/0000-0001-5638-5112

DOI:

https://doi.org/10.30550/j.lil/2360

Palavras-chave:

Epiphytic orchids, microbial isolation, roots

Resumo

Orchids (Orchidaceae) are one of the most diverse groups of vascular plants, owing their ability to form mutualistic associations with various microorganisms present in their roots. The objective of this study was to isolate and taxonomically identify fungi and bacteria colonizing the roots of five species of epiphytic orchids from southern Ecuador: Stelis superbiens Lindl., Cyrtochilum myanthum (Lindl.) Kraenz, Masdevallia rosea Lindl., Epidendrum rhopalostele Hágsater & Dodson, and Cyrtochilum flexuosum Kunth. A total of 52 samples were collected at two sites in southern Ecuador. Seventeen fungal isolates were obtained, belonging to the families Dermateaceae, Aspergillaceae, Herpotrichiellaceae, Nectriaceae, and Polyporaceae. In addition, six bacteria belonging to the families Pseudomonadaceae, Burkholderiaceae, and Comamonadaceae were also isolated. The results provide information on the diversity of microorganisms harbored by the roots of the studied species and may serve as a baseline for future research on their ecological interactions and potential application in orchid conservation programs.

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