Presencia de hongos micorrízico arbusculares en tres diferentes zonas de Bosque Altoandino

Abstract

The High Andean forests are part of the high mountain ecosystems, distributed between 2800 and 3400 meters of altitude, being the high Andean region of Colombia is one of the most diverse in the world. These forests play fundamental roles in the hydrological cycle, being environments with an abundance of water through wetlands and water networks, but despite their great value of importance, they have a high degree of anthropic intervention. The objective of this work was to analyze the soil microbiota and possible mycorrhizal fungus-plant associations through the evaluation of the presence of arbuscular mycorrhizal fungi in three different areas of high Andean forest: Guasca, Guatavita and Chia, by means of the methods of spore isolation and counting, and root colonization method, finding a high abundance of spores in the three zones, compared to previous studies in this type of forest, presence of root colonization in almost all species studied demonstrating the generalist relationship arbuscular mycorrhizal fungus-plant, and a greater number of spores in plant species with the presence of epiphytic orchids of the genera Stelis and Epidendrum.