Life cycle of arabidopsis in the international space station - Growth direction of the inflorescence stems in the presence of light under microgravity
Yashiro, U.; Karahara, I.; Yano, S.; Tamaoki, D.; Tanigaki, F.; Shimazu, T.; Masuda, D.; Kasahara, H.; Kamisaka, S.
Show abstract
In the "Space Seed" experiment performed in Kibo module of the International Space Station, growth direction of the inflorescence stem of arabidopsis was examined under space 1 G, G, and ground 1 G conditions in the presence of light. The stems grew almost upright (vertical to the surface of seedbed) under ground 1 G. Although the stems were primarily upright both under space 1 G and G, they tilted slightly. The tilting of the stems under space 1 G was indicated to be due to tilting of the artificial gravitational acceleration vectors produced on the centrifuge. The tilting of the stems under G was suggested to be due to the pressure of directional airflow produced by ventilation.
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