Tree and Forest Health
Online ISSN : 2189-7204
Print ISSN : 1344-0268
ISSN-L : 1344-0268
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Volume 24, Issue 3
Displaying 1-11 of 11 articles from this issue
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Original Article
  • Genet distribution of the snow blight fungus Racodium therryanum in a nursery of conifers in Hokkaido
    Ayuka Iwakiri, Daisuke Sakaue, Norihisa Matsushita, Kenji Fukuda
    2020 Volume 24 Issue 3 Pages 153-159
    Published: July 31, 2020
    Released on J-STAGE: March 14, 2022
    DOIhttps://doi.org/10.18938/treeforesthealth.24.3_153
    JOURNAL FREE ACCESS
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    We investigated the genet distribution of 117 isolates of the snow blight fungus Racodium therryanum isolated from seedlings of Picea jezoensis and P. glehnii in a nursery. Seven microsatellite (SSR) markers were used to identify genotypes of each isolate. Forty genotypes were detected and two of them were distributed widely in the nursery. These two genotypes didn’t form large continuous colonies but were mixedly distributed with other genotypes. This suggested that R. therryanum spreads not only by mycelial growth but also by dispersal of mycelia and organic matters infested with R. therryanum, which is accompanied by soil cultivation. On the other hand, eighty percent of genotypes were detected from only one seedling. Occurrence of various genets with low frequency suggested the possibility of sexual or parasexual reproduction of R. therryanum.

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Rapid Communications in the 24th Annual Meeting
Series: Roadside trees-Maintenance and management
Series: Consideration for treatment of tree and forest damage by birds and beasts
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