Accumulation, mobilization, and transformation of selenium in rice grain provided with foliar sodium selenite
| Autor: | Muhammad Umer Farooq, Hla Hla Ei, Zhichen Tang, Jianqing Zhu, Xiaomei Jia, Tengda Zheng, Yuanke Liang, Xiaoying Ye, Rui Zeng, Yujie Zhang |
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| Rok vydání: | 2018 |
| Předmět: |
China
030309 nutrition & dietetics Biofortification chemistry.chemical_element 03 medical and health sciences Selenium 0404 agricultural biotechnology Animal science Sodium Selenite Selenium deficiency medicine Rice plant Biotransformation 0303 health sciences Nutrition and Dietetics Bran Glume food and beverages Rice grain Oryza 04 agricultural and veterinary sciences medicine.disease 040401 food science Plant Leaves Transformation (genetics) chemistry Seeds Agronomy and Crop Science Food Science Biotechnology |
| Zdroj: | Journal of the science of food and agriculture. 99(6) |
| ISSN: | 1097-0010 |
| Popis: | Selenium is an indispensable trace element for humans and its deficiency can lead to serious health complications. Nearly 70% of the area of China faces selenium deficiency. To deal with this problem, selenium-enriched rice has been increasingly incorporated into everyday diets. However, there is a lack of in-depth studies of the absorption, translocation, and transformation of selenium in the different parts of the rice plant when sprayed with sodium selenite. RESULTS Foliar sodium selenite applied at critical growth stages can significantly improve the total and organic selenium content of plants. Application of 10 mg L?1 sodium selenite led to the most organic selenium (0.03 mg kg?1) in polished rice. Correlation studies of sodium selenite applied to leaves and other plant parts showed that total selenium accumulated most in glume, followed by rice bran, then polished rice, and finally embryo. The behavior of organic selenium was different. Organic selenium accumulated most in polished rice, then embryo, then rice bran, and finally glume. Moreover, 75?85% of the Se found in polished rice and embryo was organic in nature. CONCLUSIONS We propose that 10 mg L?1 sodium selenite can be recommended as appropriate for foliar fertilization in the organic selenium biofortification of Se-free rice. ? 2018 Society of Chemical Industry |
| Databáze: | OpenAIRE |
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