Low diversity and high host preference of ectomycorrhizal fungi in western Amazonia, a neotropical biodiversity hotspot
Autor: | Leho Tedersoo, Mohammad Bahram, Milton Zambrano, Renato Valencia, Ave Sadam |
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Rok vydání: | 2009 |
Předmět: |
Tropical Climate
biology Coccoloba Ecology Molecular Sequence Data Biodiversity Fungi Species diversity Rainforest Sequence Analysis DNA Plants biology.organism_classification Microbiology Ectosymbiosis Mycorrhizae DNA Ribosomal Spacer Species richness Ecuador DNA Fungal Ecology Evolution Behavior and Systematics Neea Guapira |
Zdroj: | The ISME journal. 4(4) |
ISSN: | 1751-7370 |
Popis: | Information about the diversity of tropical microbes, including fungi is relatively scarce. This study addresses the diversity, spatial distribution and host preference of ectomycorrhizal fungi (EcMF) in a neotropical rainforest site in North East Ecuador. DNA sequence analysis of both symbionts revealed relatively low richness of EcMF as compared with the richness of temperate regions that contrasts with high plant (including host) diversity. EcMF community was positively autocorrelated up to 8.5+/-1.0-m distance-roughly corresponding to the canopy and potentially rooting area of host individuals. Coccoloba (Polygonaceae), Guapira and Neea (Nyctaginaceae) differed by their most frequent EcMF. Two-thirds of these EcMF preferred one of the host genera, a feature uncommon in boreal forests. Scattered distribution of hosts probably accounts for the low EcMF richness. This study demonstrates that the diversity of plants and their mycorrhizal fungi is not always related and host preference among EcMF can be substantial outside the temperate zone. |
Databáze: | OpenAIRE |
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