| 李 韬,兰国防.植物硒代谢机理及其以小麦为载体进行补硒的策略[J].麦类作物学报,2012,32(1):173 |
| 植物硒代谢机理及其以小麦为载体进行补硒的策略 |
| Metabolism of Selenium in Plants and the Strategies for Selenium biofortification Using Wheat |
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| DOI：10.7606/j.issn.1009-1041.2012.01.32 |
| 中文关键词: 植物 硒 代谢 耐性 小麦 生物强化 |
| 英文关键词:Plant selenium metabolism tolerance to selenium application wheat selenium biofortification |
| 基金项目:江苏高校优势学科建设工程项目。 |
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| 中文摘要: |
| 硒是有机体不可缺少的一种生命元素，经植物吸收后转化为硒蛋白、硒核酸等多种生物大分子以及硒代半胱氨酸和硒代蛋氨酸等生物小分子有机物。大部分硒化合物具有抗氧化功能，可清除生物体内的自由氧，增强免疫力，延缓衰老，保护有机体，因此对植物以及人畜健康具有重要的影响。本文重点论述了植物对硒的吸收、硒在植物体内的转运和代谢机制以及植物对硒的耐性等方面的研究进展，并讨论了以富硒作物小麦为载体进行硒生物强化的有效途径。 |
| 英文摘要: |
| Selenium (Se) is an essential nutrient for many organisms, and has an impact on plant, human and animal health. Inorganic selenium (selenate or selenite) can be transformed to seleno proteins including seleno cysteine and seleno methionine etc. after intake by plant. Most of seleno proteins have antioxidant functions and can scavenge reactive oxygen species. In this article, we summarized publications on the mechanisms of uptake, translocation and metabolism of selenium in plants, and of tolerance of plants to excessive selenium environments. Due to the importance of wheat in food industry and its stronger capacity of enriching selenium than other staple crops, we addressed the strategies and perspectives of selenium biofortification using wheat through improving the selenium concentration in wheat. |
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