講演詳細

生理部門[Tree Physiology]

日付	2024年3月8日
開始時刻	ポスター発表
会場名	531
講演番号	PG-4（学生ポスター賞審査対象）
発表題目	Responses of cambium activity and xylem anatomy of Cryptomeria japonica clonal cultivars to experimental warming Responses of cambium activity and xylem anatomy of Cryptomeria japonica clonal cultivars to experimental warming
所属	Kobe Universiry
要旨本文	We compared responses of four cultivars of Cryptomeria japonica, to experimental stem warming in a 40-year-old plantation forest in Tano, Miyazaki. Four microcores each were sampled from four trees of each cultivar at end of growing season (Dec. 2022). Transverse sections were sliced with a microtome and stained with safranin for anatomical analyses of tracheid cell traits: cell area (A), cell diameter (D), cell wall thickness (T).Cell size (A and D) was smaller for the heated trees of Yabukuguri and Measa (intermediate- and late-growth type cultivars, respectively) compared to control, while heating has no effect on Kumotoshi and Yaichi (early-growth type cultivar). Cell walls were thicker for the heated trees of Yabukuguri, Measa and Kumotoshi, while it was thinner for Yaichi. We also found significant genetic x environmental interaction, suggesting that cultivars may respond differently to increased temperatures predicted by future climate change.
著者氏名	○Uchiyama, Christmas1 ・ Ishii, Hiroaki1 ・ Azuma, Wakana1 ・ Takagi, Masahiro2 ・ Enoki, Tsutomu3 ・ Nabeshima, Eri4 ・ Ugawa, Shin5 ・ Miyazaki, Yuko6
著者所属	1Kobe University ・ 2Miyazaki University ・ 3Kyushu University ・ 4Ehime University ・ 5Kagoshima University ・ 6Okayama University
キーワード	cambial activity, xylem anatomy, experimental warming
Key word	cambial activity, xylem anatomy, experimental warming