This is a representative picture of rice completing the "from seed to seed" throughout the life cycle in the general biological culture module of the Wentianban Life Ecological Experimental Cabinet. The numbers on the image represent the number of days after injecting the nutrient solution to start the experiment. Xinhua News Agency released
my country completed the full life cycle space cultivation experiment of rice "from seed to seed" for the first time in the world.
The reporter learned from the Center for Excellence in Molecular Plant Science of the Chinese Academy of Sciences that with the successful completion of the Shenzhou 14 manned flight mission, the rice and Arabidopsis thaliana seeds also returned from space on the spacecraft return capsule. my country has completed the entire life cycle space cultivation experiment of rice "from seed to seed" for the first time in the world.
If humans want to survive in space for a long time, they must ensure that plants can complete generational alternation in space and successfully reproduce seeds. Previously, only the cultivation of Arabidopsis, rapeseed, peas and wheat "from seeds to seeds" in the international space. In the China Space Station Question Experimental Cabin Life Science Project, Zheng Huiqiong's research team at the Center for Excellence in Molecular Plant Science of the Chinese Academy of Sciences conducted the first full-life space cultivation experiment of rice "from seed to seed" in internationally.
According to reports, from the start of the experiment with the nutrient solution on July 29, 2022 to the end of the experiment on November 25, the project carried out experiments on orbit for 120 days, and completed the culture experiments for the entire life cycle of rice and Arabidopsis seed germination, seedling growth, and flowering and seeds. During this period, the astronauts collected three samples in orbit.
On December 5, at the Space Application Center of the Chinese Academy of Sciences, scientific researchers decomposed and cured the samples. Xinhua News Agency issued
On December 5, in the Biological Laboratory of the Space Application Center of the Chinese Academy of Sciences, scientific researchers processed samples of Arabidopsis returned from space. Xinhua News Agency issued
"By analyzing the image obtained in space and comparing it with the ground, we found that space microgravity has an impact on a variety of agronomic traits of rice, including plant height, tiller number, growth rate, moisture regulation, photoreaction, flowering time, seed development process and fruiting rate, etc.," said Zheng Huiqiong.
research team also conducted regenerated rice experiments in the space and obtained seeds of regenerated rice. "Two rice ears can be regenerated after 20 days of shearing the plant, indicating that the growth of regenerated rice in a closed environment with a small space is feasible, which provides new ideas and experimental evidence for the efficient production of space crops." Zheng Huiqiong said, "This is also the first time in the world that regenerated rice technology has been tried in space."
Source: Xinhua News Agency
Editor: Yao Runping
Editor: Chen Weiping Chen Jingchao
Editor: Yao Runping
Editor: Chen Weiping
