Molecular identification of the mycorrhizal fungi of the epiparasitic plant Monotropastrum humile var. glaberrimum (Ericaceae) |
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| Authors: | Jun Yokoyama Tatsuya Fukuda Hirokazu Tsukaya |
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| Institution: | (1) Department of Ecology and Evolutionary Biology, Graduate School of Life Sciences, Tohoku University, Sendai, Japan;(2) Graduate School of Life Sciences, Tohoku University, Sendai, Japan;(3) National Institute for Basic Biology/Okazaki Institutes for Integrated Bioscience, Myodaiji-cho, Okazaki 444-8585, Japan;(4) Graduate University for Advanced Studies, Hayama, Japan;(5) Graduate School of Science, Kyoto University, Kyoto, Japan |
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| Abstract: | Achlorophyllous monotropoid plants (Monotropoideae, Ericaceae) are epiparasites that obtain all of their carbon from their host plants via connections with mycorrhizal fungi. The mycorrhizal fungi of the epiparasitic monotropoid Monotropastrum humile var. glaberrima were identified based on mitochondrial, large ribosomal DNA sequences, and were compared with those of another variety, M. humile var. humile. The fungi that inhabit M. humile var. glaberrimum belong to the Thelephoraceae, whereas that of M. humile var. humile is a member of the Russulaceae. Two explanations are possible for this phenomenon: a misunderstanding of the taxonomic position of M. humile var. glaberrimum, or a change in the fungal partner within the Monotropastrum. |
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| Keywords: | Epiparasitic plant Monotropastrum Mycorrhizal fungi Russulaceae Specificity Thelephoraceae |
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