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耐辐射球菌研究进展及其应用前景

舒海燕;田保明   

  1. 郑州大学生物工程系, 郑州 450001
  • 收稿日期:2008-11-24 修回日期:1900-01-01 出版日期:2009-06-10 发布日期:2009-06-10

Research progress and application prospect of Deinococcus radiodurans.

SHU Hai-yan;TIAN Bao-ming   

  1. Department of Biology, Zhengzhou University, Zhengzhou 450001, China
  • Received:2008-11-24 Revised:1900-01-01 Online:2009-06-10 Published:2009-06-10

摘要: 耐辐射球菌因其对辐射、紫外线、诱变剂等的极高抗性引起了人们的注意。研究发现,其辐射抗性和干燥抗性主要归因于其在逆境条件下保护蛋白质、减少蛋白质被氧化的程度。耐辐射球菌基础理论的研究成果在环境修复、农作物抗旱育种、动植物抗病育种,以及肿瘤治疗等领域都有广阔的应用前景。其中,最有可能运用在对放射性污染的环境修复中。相对于高昂的填埋处置放射性废料的方法,运用耐辐射球菌构建工程菌进行生物修复是一种廉价的方法。耐辐射球菌对干燥的强忍耐性说明其基因组中含有抗干旱基因。寻找耐辐射球菌抗干旱基因,对于转化耐辐射球菌抗干旱基因,创造抗干旱农作物具有潜在的应用价值。

关键词: 桃蚜, 草间小黑蛛, 空间格局, 地学统计学

Abstract: Deinococcus radiodurans is concerned with by the researchers for its high resistance to ionizing radiation, UV, and other mutagenic agents. These phenotypic characters of D. radiodurans are mainly attributed to its ability to protect proteins from being damaged by reactive oxygen species in adverse circumstances. Environmental restoration, breeding drought-resistant crops and virus-resistant animals, and tumor control will all benefit from the researches of D. radiodurans. Restoring the environments polluted by radioactive wastes is the most possible field where this bacterium can be applied. Engineering D. radiodurans for restoring radiomaterial-polluted environment is much cheaper than common physicochemical methods. The high drought-resistance of D. radiodurans suggests the existence of drought-resistant genes in D. radiodurans genome, and looking for these genes has potential prospect for breeding drought-resistant crops.

Key words: Myzus persicae, Erigonidium graminicola, Spatial pattern, Geostatistics