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| 细菌生物合成纳米硒的研究进展 |
| Review on Nano SeleniumProduced by Bacteria |
| Received:September 25, 2014 |
| DOI：10.13254/j.jare.2014.0245 |
| 中文关键词: 硒;红色纳米硒;细菌还原 |
| 英文关键词: selenium;red nano-selenium;bacterial reduction |
| 基金项目:公益性行业(农业)科研专项“优质高效富硒农产品关键技术研究与示范”(201303106);国家自然基金项目(31200386,31470531) |
| Author Name | Affiliation | E-mail | | LI Ji-xiang | 中国农业大学资源与环境学院, 生物多样性与有机农业北京市重点实验室, 北京 100193 | | | WU Wen-liang | 中国农业大学资源与环境学院, 生物多样性与有机农业北京市重点实验室, 北京 100193 | | | GUO Yan-bin | 中国农业大学资源与环境学院, 生物多样性与有机农业北京市重点实验室, 北京 100193 | guoyb@cau.edu.cn |
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| 中文摘要: |
| 硒是人和动物必需的一种微量元素,但是高浓度硒盐会对有机体产生毒害作用,同时会污染环境。而细菌合成的纳米硒无毒、稳定,具有较高的生物活性,在纳米硒生产和硒污染治理等方面应用潜力巨大。本文主要综述了纳米硒的特征及应用,分析了碳氮源、氧气、温度、pH等一系列因素对细菌产生纳米硒过程的影响,阐述了细菌还原合成纳米硒的初步研究机理,并探讨了该研究未来的关注点,为生物纳米硒的广泛应用提供参考。 |
| 英文摘要: |
| Selenium (Se) is a kind of essential trace element for people and animal, while ionic state of selenium is toxic with high concentrations and will cause the selenium pollution. Nano-selenium is stable, nontoxic with higher biological activity. Application of bacteria reducing selenite or selenate to biological nano-selenium has great potential in selenium pollution control and nano-selenium production. This review summarizes the research progress of the red elemental nano-selenium reduced by bacteria including characteristics and application of nano-selenium, effects of carbon and nitrogen source, oxygen, temperature and pH in bacteria nano-selenium production, and molecular mechanisms of nano-selenium reduced by bacteria. |
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