Communities of fungal endophytes in leaves of Fraxinus ornus are highly diverse |
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| Institution: | 1. Department of Oceanography, University of Concepción, Concepción, Chile;2. COPAS Sur-Austral, University of Concepción, Concepción, Chile;3. Graduate Program in Oceanography, Department of Oceanography, University of Concepcion, Concepcion, Chile;4. Interdisciplinary Center for Aquaculture Research (INCAR), University of Concepción, Concepción, Chile;5. Programa de Investigación Marina de Excelencia (PIMEX), Faculty of Natural and Oceanographic Sciences, University of Concepción, Concepción, Chile;1. Dept of Biology, Trinity University, San Antonio, TX, 78212, USA;2. Dept of Biology, University of New Mexico, Albuquerque, NM, 87131, USA;3. The Rocky Mountain Biological Laboratory, Gothic, CO, 81224, USA;4. Dept of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, 37996, USA;1. Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Science, Southwest University, Chongqing 400715, China;2. Provincial Key Lab of Rural Energy Engineering, Yunnan Normal University, Kunming 650092, China |
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| Abstract: | Communities of endophytic fungi in leaves of Manna ash (Fraxinus ornus) were examined to both the north and south of the Alps, i.e. within and beyond the native range of this tree species. Almost all leaves examined had been colonized by endophytic fungi. One hundred and two morphotypes were found, and 62 of them were identified to genus or species level using ITS sequencing and micromorphology. Venturia orni was most frequent and occurred in almost one third (32%) of the 1536 examined leaf segments. It was five times more abundant than Colletotrichum acutatum, the second most frequent endophyte. Other frequently isolated endophytes include Paraconiothyrium sp. 1, Mycosphaerella aurantia, Septoria cretae, Botryosphaeria dothidea and Boeremia exigua. The ash dieback pathogen was not isolated. The endophyte communities differed between the north and south of the Alps and the individual tree types had a distinct influence within sites. |
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| Keywords: | Ash dieback Host jump Plant resistance Global warming |
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