Application of Mg-28 to the kinetic study of Mg uptake by rice plants

作者：Tanoi Keitaro^*; Kobayashi Natsuko I; Saito Takayuki; Iwata Naoko; Hirose Atsushi; Ohmae Yoshimi; Iwata Ren; Suzuki Hisashi; Nakanishi Tomoko M

来源：Journal of Radioanalytical and Nuclear Chemistry, 2013, 296(2): 749-751.

DOI：10.1007/s10967-012-2219-7

• Magnesium
• Rice
• Mineral
• Uptake
• Mg-28

The time course of Mg uptake and release using intact rice plants and Mg-28 as a tracer is presented. Since there is no conventional Mg tracer available, Mg-28 was produced via Al-27(alpha, 3p)Mg-28 reaction using a cyclotron. Using the purified Mg-28 tracer, it was found that the uptake amount of Mg-28 by the rice plants increased linearly during 30 min of application. After Mg-28 treatment for 90 min, the roots were sequentially washed with iced solution for 120 min. Within about 10 min, almost all of the Mg-28, that was thought to be weakly bound to the apoplast, was washed away.

• 出版日期2013-5