title: Arbutoid mycorrhizas of the genus Cortinarius from Costa Rica.
abstract: Arbutoid mycorrhizas of Comarostaphylis arbutoides (Arbutoidea, Ericaceae) from neotropical montane forests are rarely described. To date, only mycorrhizal associations with the fungal species Leccinum monticola, Leotia lubrica and Sebacina sp. are known from literature. The genus Cortinarius is one of the most species-rich ectomycorrhizal taxa with over 2000 assumed species. In this study, two sites in the Cordillera de Talamanca of Costa Rica were sampled, where Com. arbutoides is endemic and grows together with Quercus costaricensis. Using a combined method of rDNA sequence analysis and morphotyping, 33 sampled mycorrhizal systems of Cortinarius were assigned to the subgenera Dermocybe, Phlegmacium and Telamonia. Specific plant primers were used to identify the host plant. Here, we present the phylogenetic data of all found Cortinarii and describe four of the arbutoid mycorrhizal systems morphologically and anatomically.
authors.affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Institute for Landscape Biogeochemistry, Eberswalder Straße 84, 15374, Müncheberg, Germany. Katja.Kuehdorf@zalf.de.
authors.forename: K
authors.initials: K
authors.lastname: Kühdorf
authors.affiliation: Leibniz Centre for Agricultural Landscape Research (ZALF), Institute for Landscape Biogeochemistry, Eberswalder Straße 84, 15374, Müncheberg, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Münzenberger
authors.affiliation: Ruhr-University of Bochum, AG Geobotany, Universitätsstraße 150, 44780, Bochum, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Begerow
authors.affiliation: University of Costa Rica, Escuela de Biología, San José, CP 11501-2060, Costa Rica.
authors.forename: J
authors.initials: J
authors.lastname: Gómez-Laurito
authors.affiliation: Brandenburg University of Technology Cottbus-Senftenberg, Chair of Soil Protection and Recultivation, Box 101344, 03013, Cottbus, Germany.|German Research Centre of Geosciences Potsdam (GFZ), Telegrafenberg, 14473, Potsdam, Germany.
authors.forename: R F
authors.initials: RF
authors.lastname: Hüttl
mesh_terms: D055363:Cortinarius / Q000145:classification*; D003364:Costa Rica; D004271:DNA, Fungal / Q000235:genetics*; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D038821:Mycorrhizae / Q000145:classification*; D010802:Phylogeny; D029963:Quercus / Q000382:microbiology*
chemical_list: D004271:DNA, Fungal; D021903:DNA, Ribosomal Spacer
keywords: Anatomy; Central America; Morphology; Secondary cloud forest