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KMID : 0880220230610080729
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Journal of Microbiology
2023 Volume.61 No. 8 p.729 ~ p.739
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Mycorrhizal Fungal Diversity Associated with Six Understudied Ectomycorrhizal Trees in the Republic of Korea
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Park Ki-Hyeong
Oh Seung-Yoon
Cho Yoon-Hee
Seo Chang-Wan
Kim Ji-Seon
Yoo Shin-Nam
Lim Ji-Sun
Kim Chang-Sun
Lim Young-Woon
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Abstract
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Mycorrhizal fungi are key components of forest ecosystems and play essential roles in host health. The host specificity of mycorrhizal fungi is variable and the mycorrhizal fungi composition for the dominant tree species is largely known but remains unknown for the less common tree species. In this study, we collected soil samples from the roots of six understudied ectomycorrhizal tree species from a preserved natural park in the Republic of Korea over four seasons to investigate the host specificity of mycorrhizal fungi in multiple tree species, considering the abiotic factors. We evaluated the mycorrhizal fungal composition in each tree species using a metabarcoding approach. Our results revealed that each host tree species harbored unique mycorrhizal communities, despite close localization. Most mycorrhizal taxa belonged to ectomycorrhizal fungi, but a small proportion of ericoid mycorrhizal fungi and arbuscular mycorrhizal fungi were also detected. While common mycorrhizal fungi were shared between the plant species at the genus or higher taxonomic level, we found high host specificity at the species/OTU (operational taxonomic unit) level. Moreover, the effects of the seasons and soil properties on the mycorrhizal communities differed by tree species. Our results indicate that mycorrhizal fungi feature host-specificity at lower taxonomic levels.
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KEYWORD
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Mycorrhizal fungi, Fungal diversity, Microbiome, Metabarcoding, Ectomycorrhizal tree
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