The program SJ-10, one of the scientific satellite programs in the Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences, was launched on April 6, 2016. There are totally19 scientific p...The program SJ-10, one of the scientific satellite programs in the Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences, was launched on April 6, 2016. There are totally19 scientific payloads, a multi-function furnace for 8 material researches and three-dimensional cell cultures for the neural stem cell and the hematopoietic stem cell respectively. The recoverable satellite consists mainly of two capsules: a recoverable capsule was recovered on 18 April 2016, with all payloads of life science, the multi-function furnace and the payload for measurement of Soret Coefficients of Crude Oil(SCCO); and an un-recoverable capsule continued to work in additional 3 days with all other physics payloads. The experiments were operated via teleoperations, and all experimental data were received by the ground station in real time.The data and recoverable samples are analyzed by the experiment teams of the program.展开更多
In order to fulfil the microgravity requirements for space experiments, improved technology for the microgravity environment is proposed, including that for raising the orbital altitude, optimizing the layout of the d...In order to fulfil the microgravity requirements for space experiments, improved technology for the microgravity environment is proposed, including that for raising the orbital altitude, optimizing the layout of the disturbance source, using IN-thrusters instead of 5 N-thrusters, etc. In addition, evaluation of the microgravity environment of the recoverable satellite was also conducted using on-orbit micro-vibration measurement, on-orbit experiment and data analysis technologies. The microgravity level of the SJ-l0 recoverable satellite in China is compared with the spacecraft used for carrying out space science experiments internationally. This paper describes the microgravity environment of the SJ- 10 recoverable satellite, and its importance for analysing space experimental results.展开更多
Intergenerational inheritance of stress memory plays a crucial role in plant adaptation to environmental changes,particularly in the context of spaceflight,where plants may serve as a food source for humans on long-du...Intergenerational inheritance of stress memory plays a crucial role in plant adaptation to environmental changes,particularly in the context of spaceflight,where plants may serve as a food source for humans on long-duration missions.However,the intergenerational genetic effects of spaceflight-induced stress memory in plants remain unclear.In this study,we assessed the cross-generational genetic effects of spaceflight stress memory using the rice mutant B10,identified during the SJ-10 return satellite mission.Our results showed that the oxidative stress effects induced by spaceflight persisted until the M5 generation in rice.We found that the rice genome remained unstable post-spaceflight,leading to alterations in genome methylation levels.Additionally,we observed significant changes in the methylation levels of transposons,suggesting their involvement in the intergenerational inheritance of spaceflight-induced stress memory.Furthermore,we identified thousands of differentially expressed genes(DEGs)and differentially alternatively spliced(DAS)genes induced by spaceflight stress memory across multiple rice generations.Notably,differentially methylated cytosines were more abundant in non-expressed genes than in DEGs or DAS genes.A substantial number of DEGs and DASs related to oxidative stress were identified,primarily involved in the generation and scavenging of reactive oxygen species.This study also presented report on the response of alternative splicing events in rice to spaceflight stress.Moreover,our findings revealed that genome methylation was associated with gene expression but not with DAS.In conclusion,our study provides comprehensive insights into the intergenerational inheritance of spaceflight-induced stress in rice and may contribute to uncovering novel mechanisms of oxidative stress-induced genomic instability and epigenetic regulation in plant stress inheritance.展开更多
This paper reviews the recoverable satellites China has developed over the past forty years.The main missions,technical specifications,scientific and technical experiments of these satellites,including the SJ-10 scien...This paper reviews the recoverable satellites China has developed over the past forty years.The main missions,technical specifications,scientific and technical experiments of these satellites,including the SJ-10 scientific experiment satellite launched on April 6,2016 are introduced.Recommendations for future technical upgrades for recoverable satellites are also proposed in the paper.展开更多
Recent progresses in 2018–2019 from space experiments onboard SJ-10 recoverable satellite and on parabolic flight were summarized,mainly focusing on cell mechano-biological coupling under microgravity.In the meantime...Recent progresses in 2018–2019 from space experiments onboard SJ-10 recoverable satellite and on parabolic flight were summarized,mainly focusing on cell mechano-biological coupling under microgravity.In the meantime,technical pre-research and experimental system design for the biomechanics research platform on China Space Station was carried out and updated.展开更多
文摘The program SJ-10, one of the scientific satellite programs in the Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences, was launched on April 6, 2016. There are totally19 scientific payloads, a multi-function furnace for 8 material researches and three-dimensional cell cultures for the neural stem cell and the hematopoietic stem cell respectively. The recoverable satellite consists mainly of two capsules: a recoverable capsule was recovered on 18 April 2016, with all payloads of life science, the multi-function furnace and the payload for measurement of Soret Coefficients of Crude Oil(SCCO); and an un-recoverable capsule continued to work in additional 3 days with all other physics payloads. The experiments were operated via teleoperations, and all experimental data were received by the ground station in real time.The data and recoverable samples are analyzed by the experiment teams of the program.
文摘In order to fulfil the microgravity requirements for space experiments, improved technology for the microgravity environment is proposed, including that for raising the orbital altitude, optimizing the layout of the disturbance source, using IN-thrusters instead of 5 N-thrusters, etc. In addition, evaluation of the microgravity environment of the recoverable satellite was also conducted using on-orbit micro-vibration measurement, on-orbit experiment and data analysis technologies. The microgravity level of the SJ-l0 recoverable satellite in China is compared with the spacecraft used for carrying out space science experiments internationally. This paper describes the microgravity environment of the SJ- 10 recoverable satellite, and its importance for analysing space experimental results.
基金supported by the Natural Science Foundation of Chongqing,China(Grant No.CSTB2024NSCQ-MSX0462)the Postdoctoral Fellowship Program of CPSF,China(Grant No.GZC20242211)+1 种基金the Heilongjiang Touyan Team,China(Grant No.HITTY-20190034)the Project of the Aerospace Science and Technology Collaborative Innovation Center,China(Grant No.BSAUEA5740600223).
文摘Intergenerational inheritance of stress memory plays a crucial role in plant adaptation to environmental changes,particularly in the context of spaceflight,where plants may serve as a food source for humans on long-duration missions.However,the intergenerational genetic effects of spaceflight-induced stress memory in plants remain unclear.In this study,we assessed the cross-generational genetic effects of spaceflight stress memory using the rice mutant B10,identified during the SJ-10 return satellite mission.Our results showed that the oxidative stress effects induced by spaceflight persisted until the M5 generation in rice.We found that the rice genome remained unstable post-spaceflight,leading to alterations in genome methylation levels.Additionally,we observed significant changes in the methylation levels of transposons,suggesting their involvement in the intergenerational inheritance of spaceflight-induced stress memory.Furthermore,we identified thousands of differentially expressed genes(DEGs)and differentially alternatively spliced(DAS)genes induced by spaceflight stress memory across multiple rice generations.Notably,differentially methylated cytosines were more abundant in non-expressed genes than in DEGs or DAS genes.A substantial number of DEGs and DASs related to oxidative stress were identified,primarily involved in the generation and scavenging of reactive oxygen species.This study also presented report on the response of alternative splicing events in rice to spaceflight stress.Moreover,our findings revealed that genome methylation was associated with gene expression but not with DAS.In conclusion,our study provides comprehensive insights into the intergenerational inheritance of spaceflight-induced stress in rice and may contribute to uncovering novel mechanisms of oxidative stress-induced genomic instability and epigenetic regulation in plant stress inheritance.
文摘This paper reviews the recoverable satellites China has developed over the past forty years.The main missions,technical specifications,scientific and technical experiments of these satellites,including the SJ-10 scientific experiment satellite launched on April 6,2016 are introduced.Recommendations for future technical upgrades for recoverable satellites are also proposed in the paper.
基金Supported by Strategic Priority Research Program and Frontier Science Key Project of Chinese Academy of Sciences(XDA04020202-17,XDA04020416,XDA15014100QYZDJSSW-JSC018),National Natural Science Foundation of China(U1738115)。
文摘Recent progresses in 2018–2019 from space experiments onboard SJ-10 recoverable satellite and on parabolic flight were summarized,mainly focusing on cell mechano-biological coupling under microgravity.In the meantime,technical pre-research and experimental system design for the biomechanics research platform on China Space Station was carried out and updated.
