Heavy metal pollution seriously threatens global rice production and food security.Arbuscular mycorrhizal fungi(AMF)can alleviate heavy metal stress in rice.To summarize existing research and propose new research dire...Heavy metal pollution seriously threatens global rice production and food security.Arbuscular mycorrhizal fungi(AMF)can alleviate heavy metal stress in rice.To summarize existing research and propose new research directions,this review outlines the current status of heavy metal pollution from perspectives including general pollution situation,soil heavy metal pollution,water heavy metal pollution,and paddy field heavy metal pollution.This paper also synthesizes the negative impacts of heavy metal stress on rice growth in terms of morphological indicators,photosynthesis,redox balance,and nutritional metabolism.It also analyzes the mechanisms by which AMF alleviate heavy metal stress in rice,induding physiological as and biochemical regulatory mechanisms,as well as molecular and genetic regulatory mechanisms.Furthermore,this paper provides research perspectives regarding integration with genetic engineering and breeding technologies,applications under combined stress conditions,and technological integration with field application promotion,aiming to establish a theoretical foundation for further research in ecological restoration and safe utilization of heavy metal-contaminated paddy fields.展开更多
文摘Heavy metal pollution seriously threatens global rice production and food security.Arbuscular mycorrhizal fungi(AMF)can alleviate heavy metal stress in rice.To summarize existing research and propose new research directions,this review outlines the current status of heavy metal pollution from perspectives including general pollution situation,soil heavy metal pollution,water heavy metal pollution,and paddy field heavy metal pollution.This paper also synthesizes the negative impacts of heavy metal stress on rice growth in terms of morphological indicators,photosynthesis,redox balance,and nutritional metabolism.It also analyzes the mechanisms by which AMF alleviate heavy metal stress in rice,induding physiological as and biochemical regulatory mechanisms,as well as molecular and genetic regulatory mechanisms.Furthermore,this paper provides research perspectives regarding integration with genetic engineering and breeding technologies,applications under combined stress conditions,and technological integration with field application promotion,aiming to establish a theoretical foundation for further research in ecological restoration and safe utilization of heavy metal-contaminated paddy fields.
