Mechanistic Advances and Process Integration of Selenium Migration and Transformation in Paddy Fields

Key Points

• This research aims to understand the comprehensive processes of selenium migration in paddy fields and its impact on rice selenium content.
• Developed a continuous migration model from soil to rice grain.
• Analyzed soil geochemical processes affecting selenium availability.
• Investigated root absorption pathways for selenium in rice plants.
• Identified that bioavailable selenium forms dictate rice selenium content, not total soil selenium.
• Highlight the critical role of selenium-containing amino acids in grain accumulation.
• Emphasized the dynamic interactions between selenium forms and plant uptake processes.