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bioRxiv · 10.1101/2020.09.30.320051

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.
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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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Yashiro, U., Karahara, I., Yano, S., Tamaoki, D., Tanigaki, F., Shimazu, T., Masuda, D., Kasahara, H., Kamisaka, S.. 2020-10-01. Life cycle of arabidopsis in the international space station - Growth direction of the inflorescence stems in the presence of light under microgravity. https://doi.org/10.1101/2020.09.30.320051

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