Selenium Uptake, Transport, Metabolism, Reutilization, and Biofortification in Rice

• Published in: Rice (New York, N.Y.) N.Y.), 2022-06, Vol.15 (1), p.30-15, Article 30
• Main Authors: Zhang, Lianhe, Chu, Chengcai
• Format: Article
• Language: English
• Subjects: Agriculture; Amino acids; Animals; Biodegradation; Biomedical and Life Sciences; Dietary intake; Food plants; Genes; Grain; Grain Size and Quality; Human body; Laboratories; Life Sciences; Metabolism; Molecular modelling; Physiology; Plant Breeding/Biotechnology; Plant Ecology; Plant Genetics and Genomics; Plant Sciences; Proteins; Review; Rice; Rice (Oryza sativa L.); Se biofortification; Se metabolism; Se reutilization; Selenium; Sulfur; Trace elements; Trace elements (nutrients); Vaporization; Volatilization
• ISSN: 1939-8425; 1939-8433; 1934-8037
• DOI: 10.1186/s12284-022-00572-6

Selenium (Se) is an essential trace element for humans and other animals. The human body mainly acquires Se from plant foods, especially cereal grains. Rice is the staple food for more than half of the world’s population. Increasing the Se concentration of rice grains can increase the average human dietary Se intake. This review summarizes recent advances in the molecular mechanisms of Se uptake, transport, subcellular distribution, retranslocation, volatilization, and Se-containing protein degradation in plants, especially rice. The strategies for improving Se concentration in rice grains by increasing Se accumulation, reducing Se volatilization, and optimizing Se form were proposed, which provide new insight into Se biofortification in rice by improving the utilization efficiency of Se.