研究者情報 | 神奈川大学

ニシタニ　カズヒコ Nishitani Kazuhiko 西谷　和彦所属神奈川大学理学部理学科神奈川大学大学院理学研究科理学専攻（生物科学領域）職種教授
発表年月日	2022/03/22
発表テーマ	"根無し"カズラの根の退化過程に着目した形態的解析
発表学会名	第63回日本植物生理学会年会（つくば）
主催者	日本植物生理学会
学会区分	全国学会
発表形式	ポスター
単独共同区分	共同
開催地名	つくば
発表者・共同発表者	飛内桃子、浅岡真理子、横山俊哉、西谷和彦
概要	After germination, Cuscuta seedlings emerge as leafless stems that grow and rotate in search of host plants. While the parasitic behavior of Cuscuta stem has been the center of scientific attention, less attention has been paid on its root development, which is also unique as the Japanese name suggests. Although a root-like structure emerges after germination, it soon withers and degenerates following a tentative lateral swelling at its lower part. This observation tempted us to hypothesize that this root-degeneration process is actively programmed so as to allow Cuscuta seedlings to attach to the ground yet to move or even fly freely and chase the host plants. To address this hypothesis, we focused on root development of C. campestris, and found that the root-like structure began to swell 24 h after seedling emergence. We characterized root morphology by sectioning followed by microscopic analysis.