Research Paper

Mycorrhizal fungi associated with Taiwanese Pyrola morrisonensis (Ericaceae) in a naturally regenerated forest

Yosuke Matsuda, Takashi Uesugi, Tsai-Wen Hsu and Chien-Fan Chen

Published on: 17 November 2017

DOI: 10.6165/tai.2017.62.399

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2017 vol.62 no.4 pp.399-406

Abstract

Pyrola morrisonensis, an evergreen herb in the family Ericaceae, is endemic to Taiwan. We examined mycorrhizal development and the associated fungi in this species. Nine plants were collected in a naturally regenerated forest in central Taiwan. The plants were genetically identical in their internal transcribed spacer (ITS) region, and their sequences matched the known sequence for P. morrisonensis. Fine roots of each plant were colonized by mycorrhizal fungi that formed mycorrhizas either with or without fungal mantles. DNA sequences of the ITS region of these fungi suggested that they belonged to mycorrhizal taxa that are common tree symbionts. Among them, members of Thelephoraceae were the dominant taxon in the host plants. These results indicate that P. morrisonensis is intimately associated with mycorrhizal fungi that might also connect with neighboring trees.

Keyword: ITS, Molecular identification, Operational taxonomic unit, Pyrola morrisonensis, root morphology, Thelephoraceae

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