講演詳細

微生物部門[Forest Microbes]

日付	2025年3月21日
開始時刻	ポスター発表
会場名	学術交流会館（第一会議室）
講演番号	PM-5 （学生ポスター賞審査対象）
発表題目	Investigating soil and root fungal communities associated with Betula ermanii across diverse provenance trials Investigating soil and root fungal communities associated with Betula ermanii across diverse provenance trials
所属	東京大学
要旨本文	Ectomycorrhizal (ECM) fungi are essential symbionts for many Betulaceae species, aiding nutrient acquisition and stress tolerance. This study examined ECM fungal communities associated with Betula ermanii using DNA metabarcoding and ECM colonization bioassay. Soil and root samples from five provenance trials revealed site-specific fungal richness, community composition and structure while the seed source population only significantly influenced root fungal community structure. The warmest site, Tano (Miyazaki), exhibited the highest fungal richness. The bioassay, conducted by inoculating sterilized seedlings in soils collected from three provenance trials, demonstrated high colonization rates (up to 95% at coolest site, Nayoro, Hokkaido) but fewer ECM fungal species at Nayoro compared to warmer sites. These findings emphasize the ecological significance of ECM fungi in B. ermanii and inform strategies to conserve B. ermanii under climate change.
著者氏名	○Aye Myat Myat Paing1 ・ Nobuhiko Shigyo2 ・ Chunlan Lian3 ・ Susumu Goto1
著者所属	1The University of Tokyo ・ 2Forestry and Forest Products Research Institute ・ 3The University of Tokyo
キーワード	root fungi, soil fungi, belowground biotic interaction, Betula ermanii, Provenance trial
Key word	root fungi, soil fungi, belowground biotic interaction, Betula ermanii, Provenance trial