Ectomycorrhizal fungi diversity in a white sand forest in western Amazonia |
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Institution: | 1. Fundación Biodiversa Colombia, Carrera 22 # 41 - 80 Apto. 004, 111311, Bogotá D.C., Colombia;2. Laboratorio de Taxonomía y Ecología de Hongos, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, A. A. 1226, Medellín, Colombia;3. Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands;4. Microbiology, Utrecht University, Utrecht, The Netherlands;5. Universidad Regional Amazónica Ikiam, Tena-Napo, Ecuador;6. Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands |
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Abstract: | The genera Dicymbe and Aldina (Fabaceae) host ectomycorrhizal fungi (EcM) and are common in white sand forests (WSFs), a highly specialized habitat with a high level of plant endemism compared with terra-firme forests. In this study, we visited four times a 1-ha permanent plot established in a small patch of a WSF in the south of Colombia Amazonia. Forty-eight species of EcM fungi were recovered from sporocarps and 15 ITS species-level were detected from root tips. Seventeen species were new reports to Colombia and seven corresponded to undescribed species. These results confirm that this WSF supports a significant EcM fungal diversity. Most of the species found in this study have been previously reported to be associated with other legume and/or dipterocarp species from geographically distant forests. The long-distance occurrence combined with low host specificity, suggest the possibility of gene flow between geographically distant populations of EcM fungi in neotropical lowland rainforests. |
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Keywords: | Dipterocarpaceae Dispersion Ecology Fabaceae Host specificity Hymenochaetaceae Russulaceae |
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