检索结果-南通市图书馆

Effects of space flight on Expression of Key Proteins in Rice Leaves

在线全文

学校读者我要写书评

暂无评论

Rice science 2020年第5期27卷 423-433,I0026-I0033页

作者： Zeng Deyong Cui Jie Yin Yishu Zhang Meng Shan Shan Gao Xin Zhang Yingchun Sun Yeqing Lu Weihong School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbin 150000China National and Local Joint Engineering Laboratory For Synthesis Transformation and Separation of Extreme Environmental NutrientsHarbin 150001China Dalian Maritime University Institute of Environmental Systems BiologyDalian 116026China

As a unique form of abiotic stress, the environmental conditions of outer space are expected to induce changes in plant genomes, proteomes and metabolic pathways. However, the effect of outer space conditions on the overall physiology of plants at the protein level has yet to be reported. To investigate the effects of outer space conditions on the growth-and development-related physiological processes and metabolic pathways of rice different stages, the seeds of rice variety DN423 were sent into orbit for 12.5 d aboard the SJ-10 Returning Satellite, and then the seedlings of both treated and control rice were compared at the three-leaf stage(TLS) and tillering stage(TS). In addition to comparing plant growth and reactive oxygen species(ROS) levels, seedling proteomes were also compared using isobaric tags for relative and absolute quantitation(i TRAQ). space flight increased TLS plant height by 20%, reduced and increased ROS levels of the TLS and TS seedlings, respectively, and affected the expression of 36 and 323 proteins in TLS and TS leaves, respectively. Furthermore, the functions of the differentially abundant proteins were mainly associated with metabolism, energy, and protein synthesis and degradation. These results suggested that the exposure of seeds to outer space conditions affects the subsequent abundance of key signaling proteins, gene expression, and the processes of protein synthesis and degradation, thereby affecting metabolic processes and promoting adaptation to the abiotic stress of outer space. As such, the present study sheds light on the effects of space flight on plants and contributes to a more comprehensive understanding of extraterrestrial biology.

关键词： differentially abundant protein rice proteomics space flight isobaric tags for relative and absolute quantitation

Secondary metabolism in simulated microgravity and space flight

在线全文

学校读者我要写书评

暂无评论

Protein & Cell 2011年第11期2卷 858-861页

作者： Hong Gao Zhiheng Liu Lixin Zhang Chinese Academy of Sciences Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of Sciences(CAS)Beijing 100101China School of Chemistry University of East AngliaNorwichNR47TJUK

space flight experiments have suggested that microgravity can affect cellular processes in *** simulate the microgravity environment on earth,several models have been developed and applied to examine the effect of microgravity on secondary *** this paper,studies of effects of space flight on secondary metabolism are exemplified and reviewed along with the advantages and disadvantages of the current models used for simulating *** discussion is both significant and timely to researchers considering the use of simulated microgravity or space flight to explore effects of weightlessness on secondary metabolism.

关键词： simulated microgravity space flight microorganism secondary metabolism

Study on Mutagenic Effect of space flight in Two-line Sterile Rice

在线全文

学校读者我要写书评

暂无评论

Agricultural Science & Technology 2009年第4期10卷 105-107,174页

作者：杨震彭选明彭伟正庞爱军庞伯良湖南省原子能农业应用研究所湖南长沙410125

Seeds of two-line sterile rice cultivars Zhu 1S and Lu 18S were carried into space by ＂Shijian 8＂ breeding recoverable satellite, then planted in ground. Mutagenic effects from space induction were compared with those from y-irradiation and complex processing of space induction and y-irradiation. The results showed that agronomic effect was stimulated in Mo progenies of the two-line sterile rice varieties treated by space flight, and their radiosensitivities to the irradiation of space flight performed non-sensitive. The order of mutation frequency was determined to be SP ＋ γ 〉 γ 〉 SP in M2 generation. And a series of mutated elites（individuals） were screened. Physiological indices of mutants screened like the activity of protective enzymes were measured to explore the physiological and biochemical basis of biological effect in space environment to two-line sterile rice. The results of this study show that space mutation breeding is an effective novel mean for breeding.

关键词： space flight y-irradiation Complex process Two-line sterile variety Mutagenic effects

Acclimation during spaceflight:effects on human emotion

在线全文

学校读者我要写书评

暂无评论

Journal of Medical Colleges of PLA(China) 2016年第3期31卷 162-167页

作者： Qing Liu Ren-Lai Zhou Xin Zhao Xiao-Ping Chen Shan-Guang Chen Department of Psychology School of Social and Behavioral SciencesNanjing UniversityNanjing 210023 China School of Psychology Beijing Normal University Beijing 100875 China Research Center of Emotion Regulation Beijing Normal University Beijing 100875 China School of Psychology Northwest Normal University Lanzhou 730000 China China Astronaut Research and Training Center Beijing 100094 China

Recently,studies on the extent to which spaceflight affects the psychology of individuals has received *** order to reveal the mental challenges that humans face in space,we need practical viewpoints to integrate the psychological effects,behavior,performance and the environment itself for space *** present review discusses the individual variables related to space psychology and manned spaceflight,in addition to their growing *** items include patterns of emotional changes in extreme environments and the approaches to evaluating ***,the review concludes with suggested future research on emotion during spaceflight and its *** data and information are needed to plan for the exploration of the Moon and Mars,along with contributions to the construction of the international space station(ISS) and astronaut training.

关键词： space flight Weightlessness Emotion Physiology

Cytological Effects of space Environment on Different Genotype of Rice

在线全文

学校读者我要写书评

暂无评论

Journal of Beijing Institute of Technology 2007年第2期16卷 220-225页

作者：魏力军钱宇杨谦徐建龙王俊敏孙野青 Department of Life Science and Engineering Harbin Institute of Technology National Key Facility for Crop Gene Resources & Genetic Improvement Institute of Crop and Nuclear Technology Utilization Zhejiang Academy of Agricultural Sciences Institute of Environmental Systems Biology Dalian Maritime University

For exploring the biological effect of space environment on different genotype of rice seeds, the cytological effects of M1 generation after space flight were studied. Twelve different genotypes of rice seeds which belong to different climate ecotype （early, medium and late） of indica and japonica were onboard ＂Shenzhou 4＂ spaceship for 162 h. After recovered the total number of mitosis cells and chromosomal aberration were observed. In all the lines the mitotic index （MIs） of space flight are much higher than control, which indicates the stimulate effect of space environment. The cell rate of chromosomal aberration （CRCA） of space flight is also much higher than control, but varies from line to line. It indicates that biological effect of space environment on rice seed dependents not only on flight duration but also on rice genotype. The radiosensitivities of different lines were also discussed according to CRCAs.

关键词： rice space flight cytological effects

space CARGO TRANSPORT BAGS THROUGH MEMBRANE WATER TREATMENT ELEMENTS TO space ARCHITECTURE BUILDING ELEMENT:A TOTAL PRODUCT SUSTAINABILITY AND LIFE CYCLE DESIGN OPTIMIZATION EXPERIMENT

在线全文

学校读者我要写书评

暂无评论

Journal of Green Building 2012年第1期7卷 71-84页

作者： Sherwin Gormly Michael Flynn A.Scott Howe Hydration Technologies Innovations and Algae Systems NASA Ames Research Center(ARC). NASA Jet Propulsion Laboratory(JPL).

The CTB Water Wall project is a maximal product life cycle utilization concept study by members of the space architecture design *** function is to demonstrate a human space activity Cargo Transport Bag(CTB)that becomes a primary water recycling membrane element after delivery of cargo,and then a permanent architectural building block for sustainable space habitation after its use in water treatment is *** such,it is intended as an experiment in radical life cycle product optimization in an extremely mass-constrained application environment(human space operations).It also introduces some fundamentally interesting concepts in architectural use of waste materials in extreme ***,it is in some ways a simple,tactile and visual demonstration of how far sustainable product design can be taken,if the motivation and technical justification are present.

关键词： cargo transport bag space flight human space development space architecture product life cycle sustainable product design long-term life support sustainability architectural use of waste materials in extreme environments

磁悬浮发射的橇体、运载器与地面之间的气动干扰特性分析

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

磁悬浮发射的橇体、运载器与地面之间的气动干扰特性分析