期刊
BIOLOGIA
卷 64, 期 5, 页码 893-897出版社
SPRINGER
DOI: 10.2478/s11756-009-0175-7
关键词
Dactylorhiza sambucina; ITS; mycorrhizal fungi; Orchidaceae
类别
We amplified and sequenced internal transcribed spacer (ITS) region of the nuclear ribosomal repeat from fungi in roots of Dactylorhiza sambucina (Orchidaceae) and used the extended database to identify the mycorrhizal fungi. We molecularly identified three ITS recovered from D. sambucina roots, one belonging to Rhizoctonia group, and two to ascomycetes, for the first time in Orchidoidae. In many cases, two sequence types were found from the same orchid root, providing that two taxa may be involved in mycorrhizal formation (multiple mycobiont colonization). Moreover, we demonstrated that D. sambucina plants, irrespective of their colour polymorphism, possess roots containing several fungi belonging to both asco- and basidiomycetes.
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