総説
宇宙環境下における植物の成長・発達とオーキシン動態: 特に，国際宇宙ステーション実験“Auxin Transport”の観点から
2020 年 55 巻 1 号 p. 23-31
詳細
2020 年 55 巻 1 号 p. 23-31
Plant growth and development is dynamically regulated by plant hormones. Among them, auxins show unique directional transport designated polar auxin transport （PAT） by which auxin gradient is generated, it being instrumental in the diverse regulation of various plant developmental processes. To clarify the mechanism by which gravity controls PAT, we carried out the space experiment “Auxin Transport” on the International Space Station （ISS） using etiolated pea and maize seedlings, focusing on auxin efflux carrier PIN proteins. Here I would summarize the ISS experiment, and discuss the gravity-controlled mechanism to regulate PAT. I also briefly introduce plant experiments done on the ISS.
