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21世纪空间生命科学和空间生物技术发展机遇与挑战 被引量:7

OPPORTUNITIES AND CHALLENGES OF DEVELOPMENT OF SPACE LIFE SCIENCE IN THE 21ST CENTURY
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摘要 空间生命科学已由试探性飞行实验阶段迈进开发利用近地轨道资源阶段.在利用微重力资源方面,(1)从细胞水平上探讨重力作用的分子机制,(2)发展空间生物加工技术,(3)从细胞水平上研究人在空间病理反应和适应性生理反应的生理学研究,(4)进行建立CELSS基本生物学问题的研究.一个从细胞水平上说明“重力直接对间接影响”的整体作用机制假说“双叉理论”已经提出,各国都在积极组织验证. ESA推出自落机,验证“重力敏感窗.转壁灌注式细胞生物反应器,为空间大容量细胞悬浮培养解决了供氧和溶质扩散问题,也为地面模拟研究细胞三维生长问题提供了手段.为保障宇航员健康的工作和生活,从细胞水平上研究人在空间的病理和适应性生理反应问题已经开始.在地面上已突破植物光能转化和废物处理两大关键技术,在空间建立CELSS的基本生物学问题也已提上议事日程. Among all kinds of space resources, microgravity has been used in, (1) studying molecular mechanism of gravity on cellular level, (2) developing space biotechnology, (3) expanding physiological researches at cellular level on the human pathological and physiological adaptive responses in space, (4) researching on the establishment of controlled ecological life support system (CELSS), a basic biology problem. A new theory has been proposed and would be proved by scientists that the mechanism of gravity effect on 'direct to indirect'.
作者 刘承宪
出处 《空间科学学报》 CAS CSCD 北大核心 2000年第S1期37-47,共11页 Chinese Journal of Space Science
关键词 微重力资源 双叉理论 适应性生理反应 生物分离 细胞融合 受控生态生命支持系统 Microgravity resources, Bifurcation theory, Focusing amplifica- tion, Amplification through linear translation, Whole effect, Physiological adaptive responses, Biosegregation, Cell fusion, Controlled ecological life support system
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