Características culturales de hongos aislados desde raíces de orquídeas y rizoides de hepáticas en el Parque Nacional Podocarpus

Abstract

Abstract: Certain plant species have developed symbiosis with microorganisms that exploit their metabolic potentials. Among these are fungi, which could form mutualistic interactions with orchids and liverworts. In recent years, molecular tools have been used to get to know the diversity of these fungi, however, limited cultural characterization with taxonomic importance is still limited. Therefore, this study made a cultural characterization (macro and microscopic structures) of fungi isolated in three culture media such as SDA, PDA and MEA from roots of orchids and rhizoids of liverworts of the Podocarpus National Park, Cajanuma sector. Of 62 isolated fungi (16 orchid root fragments, 27 liver rhizoid fragments, and 19 liverwort thalli) 14 different morphotypes were grouped according to the growth characteristics (macroscopic and microscopic) evaluated at 14 days of incubation. The results by descriptive tests showed an increase in the speed of mycelial growth in the SDA and PDA culture media, but that at the microscopic level the structures were still similar in SDA, MEA and PDA. On the other hand, the microscopic characteristics presented only asexual structures showing the requirement of these fungi for rigorous environmental and nutritional conditions. Being a key piece for future research with ecological and bioprospecting importance.