講演詳細

微生物部門[Forest Microbes]

日付	2026年3月18日
開始時刻	14:15
会場名	304
講演番号	M-10
発表題目	Light-mediated responses in ectomycorrhizal fungi Light-mediated responses in ectomycorrhizal fungi
所属	東京大学
要旨本文	Different light spectra distinctly influence fungal growth and development, yet their effects on ectomycorrhizal (ECM) fungi remain poorly understood. This study investigated the effects of different lights on mycelial growth of Laccaria japonica, L. bicolor, Pisolithus sp., and Cenococcum geophilum, as well as transcriptomic regulation and ECM formation in L. japonica. ECM fungi exhibited species-specific growth responses to light, with blue and white light inhibiting L. japonica. Transcriptome analyses revealed that blue light triggered extensive stress-responsive and metabolic reprogramming, whereas red light caused comparatively minor transcriptional changes. Additionally, blue light significantly reduced ECM colonization by L. japonica compared with red light or darkness. These results demonstrate that light spectrum profoundly affects ECM fungal physiology and symbiotic capability, with continuous blue light negatively affecting both free-living and symbiotic stages of ECM fungi.
著者氏名	○Phobthum Kosolwattana1 ・ Dening Kong1 ・ Makoto Shirakawa2 ・ Wataru Yamori1 ・ Chunlan Lian1
著者所属	1The University of Tokyo ・ 2Department of Life Science, Chiba Institute of Technology
キーワード	Ectomycorrhiza, Fungal photobiology, Transcriptome analysis, Laccaria
Key word	Ectomycorrhiza, Fungal photobiology, Transcriptome analysis, Laccaria