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Research article - Peer-reviewed, 2022

Patterns of community composition and diversity in latent fungi of living Quercus serrata trunks across a range of oak wilt prevalence and climate variables in Japan

Fukasawa, Yu; Matsukura, Kimiyo; Stephan, Jörg; Makoto, Kobayashi; Suzuki, Satoshi N.; Kominami, Yuji; Takagi, Masahiro; Tanaka, Nobuaki; Takemoto, Shuhei; Kinuura, Haruo; Okano, Kunihiro; Song, Zewei; Jomura, Mayuko; Kadowaki, Kohmei; Yamashita, Satoshi; Ushio, Masayuki

Abstract

Given that forest dieback due to emerging pests is increasing under global warming, understanding the relationships between pests, climate, and forest biodiversity is an urgent priority. In Japan, mass attacks of an ambrosia beetle, vectoring a pathogenic fungus, cause oak wilt outbreaks in recent decades. Here, the associations of oak wilt and climate with wood-inhabiting fungal communities in apparently healthy Quercus serrata trunks were investigated using DNA metabarcoding in seven sites along a climatic gradient in Japan. Amplicon sequencing of the fungal internal transcribed spacer 1 region generated 1,339,958 sequence reads containing 879 fungal operational taxonomic units (OTUs) in 234 wood samples. OTU compositions were significantly different between sites with and without oak wilt. OTU richness increased with temperature and precipitation at sites where oak wilt was present, but this relationship was not observed at sites without oak wilt, possibly due to interaction between oak wilt and climate.

Keywords

Ambrosia beetle; Brown-rot fungi; Forest dieback; Latent inhabitants; Oak; Precipitation; Temperature; White-rot fungi

Published in

Fungal Ecology
2022, Volume: 59, article number: 101095

    UKÄ Subject classification

    Ecology
    Forest Science

    Publication identifier

    DOI: https://doi.org/10.1016/j.funeco.2021.101095

    Permanent link to this page (URI)

    https://res.slu.se/id/publ/112802