講演詳細

T4. 樹木根の成長と機能[Development and function of tree roots]

日付	2025年3月21日
開始時刻	10:00
会場名	N31
講演番号	T4-4
発表題目	Influence of masting on resource dynamics in fine roots of Fagus crenata individuals identified using molecular markers Influence of masting on resource dynamics in fine roots of Fagus crenata individuals identified using molecular markers
所属	国立研究開発法人森林研究・整備機構
要旨本文	Mast seeding or masting, referred to synchronous and highly variable seed production across years by a population of perennial plants, plays a critical role in forest regeneration and biodiversity maintenance. Although its ecological significance is widely recognized, the physiological mechanisms underlying masting remain poorly understood, with most studies emphasizing the role of internal nutrient dynamics in aboveground organs. In contrast, belowground processes, particularly those related to nutrient acquisition, remain inadequately explored, primarily due to the difficulty of distinguishing fine roots among individual trees. In this study, fine roots in a mature Fagus crenata forest were individually identified using microsatellite markers, and further classified into absorptive and transport roots by orders. Seasonal variations in nitrogen and non-structural carbohydrate concentrations in these two root types are presented.
著者氏名	○Qingmin Han ・ Asako Matsumoto ・ Daisuke Kabeya ・ Shin-Ichi Miyazawa ・ Kyotaro Noguchi
著者所属	Forestry and Forest Products Research Institute
キーワード	masting, fine root, starch, functional classification, nitrogen
Key word	masting, fine root, starch, functional classification, nitrogen