| 细菌生物合成纳米硒的研究进展 |
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| 引用本文： | 李吉祥,吴文良,郭岩彬.细菌生物合成纳米硒的研究进展[J].农业环境科学学报,2014,31(6):551-554. |
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| 作者姓名： | 李吉祥 吴文良 郭岩彬 |
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| 作者单位： | 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,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,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 |
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| 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) |
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| 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。
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| 关 键 词： | 硒 红色纳米硒 细菌还原 |
| 收稿时间： | 2014/9/25 0:00:00 |
Review on Nano SeleniumProduced by Bacteria |
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| LI Ji-xiang,WU Wen-liang and GUO Yan-bin.Review on Nano SeleniumProduced by Bacteria[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2014,31(6):551-554. |
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| Authors: | LI Ji-xiang WU Wen-liang and GUO Yan-bin |
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| Institution: | College of Resources and Environmental Sciences, China Agricultural University, Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing 100193, China,College of Resources and Environmental Sciences, China Agricultural University, Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing 100193, China and College of Resources and Environmental Sciences, China Agricultural University, Beijing Key Laboratory of Biodiversity and Organic Farming, Beijing 100193, China |
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| Abstract: | 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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| Keywords: | selenium red nano-selenium bacterial reduction |
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