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Título : SPECIES-RICH BUT DISTINCT ARBUSCULAR MYCORRHIZAL COMMUNITIES IN REFORESTATION PLOTS ON DEGRADED PASTURES AND IN NEIGHBORING PRISTINE TROPICAL MOUNTAIN RAIN FOREST
Otros títulos : Tropical Ecology 51(2): 125-148, 2010, © International Society for Tropical Ecology
Autor : AGUIRRE MENDOZA, NIKOLAY ARTURO
INGEBORG HAUG, TESFAYE WUBET
MICHAEL WEIß, MICHAEL WEBER
SVEN GÜNTER, INGRID KOTTKE
Palabras clave : Cedrela montana
degraded pastures
Glomeromycota
Heliocarpus americanus
Juglans neotropica
neotropical mountain rain forest
reforestation
ribosomal 18S RNA gene
Setaria sphacelata
Tabebuia chrysantha
Fecha de publicación : 2010
Resumen : For the first time in tropical mountain rain forest, arbuscular mycorrhizal fungal richness and community composition was investigated from planted seedlings of Cedrela montana, Heliocarpus americanus, Juglans neotropica and Tabebuia chrysantha in reforestation plots on degraded pastures. A segment of fungal 18S rDNA was sequenced from the mycorrhizas. Sequences were compared with those obtained from mycorrhizas of adult trees of 30 species in the neighboring, pristine tropical mountain rain forest. In total, 193 glomeromycotan sequences were analyzed, 130 of them previously unpublished. Members of Glomeraceae, Acaulosporaceae, Gigasporaceae and Archaeosporales were found in both habitats, with Glomus Group A sequences being by far the most diverse and abundant. Glomus Group A sequence type richness did not appear to differ between the habitats; a large number was observed in both. Glomus Group A sequence type composition, however, was found distinctly different. Seedlings were rarely colonized by fungi of the pristine forest but trapped a number of fungi known from other areas, which were rarely found in the pristine forest
URI : http://dspace.unl.edu.ec/jspui/handle/123456789/198
ISSN : 0564-329
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