Please use this identifier to cite or link to this item: http://dspace.utpl.edu.ec/jspui/handle/123456789/19288
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dc.contributor.authorSetaro, S.es_ES
dc.contributor.authorHaug, I.es_ES
dc.contributor.authorOberwinkler, F.es_ES
dc.contributor.authorWeiss, M.es_ES
dc.contributor.authorNebel, M.es_ES
dc.contributor.authorPreussing, M.es_ES
dc.contributor.authorSuarez Chacon, J.es_ES
dc.date.accessioned2017-06-16T22:03:17Z-
dc.date.available2017-06-16T22:03:17Z-
dc.date.submitted02/01/2008es_ES
dc.identifierhttp://dx.doi.org/10.1016/j.baae.2007.03.007es_ES
dc.identifier.isbn14391791es_ES
dc.identifier.otherhttp://dx.doi.org/10.1016/j.baae.2007.03.007es_ES
dc.identifier.urihttp://dspace.utpl.edu.ec/handle/123456789/19288-
dc.description.abstractMycorrhizas of vascular plants and mycorrhiza-like associations of liverworts and hornworts are integral parts of terrestrial ecosystems, but have rarely been studied in tropical mountain rain forests. The tropical mountain rain forest area of the Reserva Biológica San Francisco in South Ecuador situated on the eastern slope of the Cordillera El Consuelo is exceptionally rich in tree species, ericads and orchids, but also in liverworts. Previous light and electron microscopical studies revealed that tree roots are well colonized by structurally diverse Glomeromycota, and that epiphytic, pleurothallid orchids form mycorrhizas with members of the Tulasnellales and the Sebacinales (Basidiomycota). Sebacinales also occurred in mycorrhizas of hemiepiphytic ericads and Tulasnellales were found in liverworts belonging to the Aneuraceae. On the basis of these findings, we hypothesized that symbiotic fungi with a broad host range created shared guilds or even fungal networks between different plant species and plant families. To test this hypothesis, molecular phylogenetic studies of the fungi associated with roots and thalli were carried out using sequences of the nuclear rDNA coding for the small subunit rRNA (nucSSU) of Glomeromycota and the large subunit rRNA (nucLSU) of Basidiomycota. Sequence analyses showed that Sebacinales and Tulasnellales were only shared within but not between ericads and orchids or between liverworts and orchids, respectively. Regarding arbuscular-mycorrhiza-forming trees, however, 18 out of 33 Glomus sequence types were shared by two to four tree species belonging to distinct families. Nearly all investigated trees shared one sequence type with another tree individual. Host range and potential shared guilds appeared to be restricted to the plant family level for Basidiomycota, but were covering diverse plant families in case of Glomeromycota. Given that the sequence types as defined here correspond to fungal species, our findings indicate potential fungal networks between trees. © 2007 Gesellschaft f�r �kologie.es_ES
dc.languageIngléses_ES
dc.subjectandean clade of ericaceaees_ES
dc.subjectaneuraceaees_ES
dc.subjectfungal networkses_ES
dc.subjectglomuses_ES
dc.subjectnuclsues_ES
dc.subjectnucssues_ES
dc.subjectpleurothallid orchidses_ES
dc.subjectreserva biológica san franciscoes_ES
dc.subjectsebacinaleses_ES
dc.subjecttulasnellaleses_ES
dc.titleGuilds of mycorrhizal fungi and their relation to trees, ericads, orchids and liverworts in a neotropical mountain rain forestes_ES
dc.typeArticlees_ES
dc.publisherBasic and Applied Ecologyes_ES
Appears in Collections:Artículos de revistas Científicas



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