China Space Station Ask Sky Curring Experimental Progress Progress in the Plant growth state is good

On August 29, the introduction of the phase of the space station and space station's high -plant training experimental progress was held at the Space Application Center of the Chinese Academy of Sciences and the Molecular Gyrity Center. According to reports, as of now, the effective load status of the Tiantian experimental compartment is good and the work is stable. Experimental units containing experimental samples of southern mustard seeds and rice seeds have been installed from a space staff to the life ecological ecological experimental module of the test cabin. At present, plants have germinated and growing.

Qi Tian's experimental cabin is the second cabin section of China Space Station and the first scientific experimental cabin. After the launch, the astronauts have completed the installation of the universal biological training module of the life ecological experimental cabinet, the state settings, the radiation measurement module, and the plant training unit installation, and completed the gravity scientific experimental cabinet, scientific glove box, low temperature storage device, biotechnology technology The unlocking and assembly of the experimental cabinet, the assembly process is smooth and efficient. After the assembly is completed, the scientific experimental cabinet has carried out the established on -orbit test content. The relevant scientific experimental cabinets and the scientific experimental system work normally and the load state is good. Detailed reading and analysis of application data is currently undergoing application data.

After the launch of the experimental compartment, the space environment guarantee division system monitor the changes in the space environment 24 hours. According to the current space environment monitoring data analysis, the current level of solar activity is extremely low to low, and geomagnetic activity is mainly based on calm to micro -disturbance, which is conducive to the development of various schedules in the space station.

Decrypture the growth experiment of the experimental compartment plant

——In explore the mechanism of high -plant flowering regulatory molecular mechanisms

Scientists conducted a lot of research on space planting and cultivation plants, and conducted more than 20 plant training experiments in various space aircraft. In the early days, the main goal of people's spatial plant training experiments was how to support plants in the space environment so that they could germinate, grow, flowers, and produce seeds. Now these goals have been achieved one by one. At present, the research of scientists has gradually expanded from the research on plant seedlings to seed production research. However, only a few crops of rapeseed, wheat and peas have completed the experiment from seeds to seeds in space to seeds.

Four leaves of rice seedlings have grown four leaf rice seedlings grow well

△ The growth and development of rice under the condition of micro -gravity

Zheng Huiqiong Research Team, a molecular and excellent Innovation Center of the Chinese Academy of Sciences, has undertaken the life science experiment project of "molecular mechanism for high -level plant flowering regulation under micro -gravity conditions". On July 28, experimental units containing experimental samples and rice seeds were installed from the life ecological experimental module installed to the experimental compartment of the sky, and the experiment was launched on July 29 through the ground program injection instructions. At present, the seeds of Arabia mustard and rice have been successfully launched. Four leaves have grown in Arabia Mountain Seedlings. High -straw rice seedlings have grown to about 30 cm high, and low -straw rice is also 5 ~ 6 cm high. The growth state is good. , Follow -up will complete the experiment of Arabia and rice in the whole life cycle of space from seeds to seeds, and during the experimental process, the astronauts collected samples and frozen preservation, and finally returned to the ground with the astronauts to analyze.

△ rice

This space experimental sample Arabia and rice are two models of plants. Arabiastone represents Gemini, long days, and cross flower plants, and many vegetables, such as vegetables, rapeseeds, etc. belong to the family. The rice represents the leaf leaves, short -day, and grasses, and many grain crops, such as wheat and corn, belong to the grace. This project mainly studies the molecular mechanism of the flowering regulation of Arabidone and rice under the micro -gravity conditions of the space. "Blossom" is the prerequisite for plants to make a new generation of seeds. The seeds of crops are both food and the carrier of breeding the next generation. With the deepening of the development of people's deep space detection, such as landing in Mars, in order to truly solve the problem of food guarantee for human long -term space exploration, it is necessary to solve the problem of production of grain in space. Therefore, the crops of space planting must have the requirements of high -yield, high -quality, high production efficiency and low energy consumption.

△ The growth and development of Arabia mustard under the condition of micro -gravity

The goal of this experiment is to complete the cultivation and research from the whole life cycle from seeds to seeds in space stations to explore the use of spatial environmental factors to control the flowering of plants to maximize the production efficiency of plant production in smaller closed spaces Perhaps the way, at the same time, through the astronauts to collect samples in the rail, freeze back analysis, identify the key hub gene of the spatial micro -gravity regulating plant flowering and verify it, and provide a molecule for the next step to build high -quality high -quality crops that adapt to the space micro -gravity environment. element.

△ Arabia

Researcher Zheng Huiqiong, a molecular plant excellence center, said that through this study, the training experiments from "seeds to seeds" full life cycle under the first international minimum gravity conditions were completed internationally, and the key environmental parameters of rice training were obtained. The impact of spatial micro -gravity on rice growth and molecular basis provides important theoretical guidance using rice to provide important theoretical guidance. At the same time, through the transcription group analysis, the two modes of Arabidopsis and rice, the expression of the key genes of key genes in the space environment and the changes in its regulatory network, and analyzes the molecular mechanism of the spatial micro -gravity for long and short -day plants. Further create a theoretical basis for the development of crops and development and use of space micro -gravity environment resources.

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