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Evaluation of effect of root parasite on nitrogen translocation and distribution in the host plant by Positron Emitting Tracer Imaging System (PETIS)

PETISを用いた宿主植物における窒素転流及び分布様式の根寄生植物による影響の評価

関本 均; 本田 修三*; 加藤 翔太*; 落合 由記子*; 米山 香織*; 米山 弘一*; 竹内 安智*; 河地 有木; 藤巻 秀; 鈴井 伸郎; 石井 里美; 石岡 典子; 松橋 信平

Sekimoto, Hitoshi; Honda, Shuzo*; Kato, Shota*; Ochiai, Yukiko*; Yoneyama, Kaori*; Yoneyama, Koichi*; Takeuchi, Yasutomo*; Kawachi, Naoki; Fujimaki, Shu; Suzui, Nobuo; Ishii, Satomi; Ishioka, Noriko; Matsuhashi, Shimpei

To share the absorbed nitrogen with host plant would be one of strategy for survival of root parasites. Translocation of $$^{13}$$N$$^{-}$$nitrate or $$^{13}$$N$$^{-}$$ammonium in the root system of red clover infected by broomrapes (${it Orobanche minor}$ Sm.) was examined by a positron emitting tracer imaging system (PETIS). PETIS images indicated that the distribution ration of $$^{13}$$NH$$_{4}$$$$^{+}$$ in the shoot to in the whole ${it Orobanche}$- infected plant was lower than in no-infected plant, indicating that ${it Orobanche}$ easily compared with $$^{13}$$NO$$_{3}$$$$^{-}$$.

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