Kühdorf K, Münzenberger B, Begerow D, Gómez-Laurito J, Hüttl R F
Leibniz Centre for Agricultural Landscape Research (ZALF), Institute for Landscape Biogeochemistry, Eberswalder Straße 84, 15374, Müncheberg, Germany.
Ruhr-University of Bochum, AG Geobotany, Universitätsstraße 150, 44780, Bochum, Germany.
Mycorrhiza. 2016 Aug;26(6):497-513. doi: 10.1007/s00572-016-0688-1. Epub 2016 Mar 11.
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.
新热带山地森林中杨梅叶越橘（Arbutoidea，杜鹃花科）的杨梅状菌根很少被描述。迄今为止，文献中仅记载了与真菌物种蒙氏疣柄牛肝菌、润滑胶膜菌和某种角担菌的菌根共生关系。丝膜菌属是物种最为丰富的外生菌根分类群之一，假定有2000多种。在本研究中，对哥斯达黎加塔拉曼卡山脉的两个地点进行了采样，杨梅叶越橘是该地区的特有物种，与哥斯达黎加栎生长在一起。采用rDNA序列分析和形态分型相结合的方法，将33个采样的丝膜菌菌根系统归入皮伞亚属、粘盖丝膜菌亚属和毛盖丝膜菌亚属。使用特定的植物引物来鉴定宿主植物。在此，我们展示了所有发现的丝膜菌的系统发育数据，并从形态学和解剖学上描述了四种杨梅状菌根系统。
