文献类型： 外文期刊
作者： Li, Jifu 1 ; Jia, Yidan 1 ; Dong, Rongshu 1 ; Huang, Rui 1 ; Liu, Pandao 1 ; Li, Xinyong 1 ; Wang, Zhiyong 2 ; Liu, Guoda 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Crop Genet Resources, Haikou 571101, Hainan, Peoples R China
2.Hainan Univ, Inst Trop Agr & Forestry, Haikou 571101, Hainan, Peoples R China
3.Minist Agr, Key Lab Crop Gene Resources & Germplasm Enhanceme, Haikou 571101, Hainan, Peoples R China
关键词： manganese toxicity; Mn detoxification; tolerance mechanism; gene function; subcellular compartment
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）
ISSN：
年卷期： 2019 年 20 卷 20 期
页码：
收录情况： SCI
摘要： Manganese (Mn) is an essential element for plant growth due to its participation in a series of physiological and metabolic processes. Mn is also considered a heavy metal that causes phytotoxicity when present in excess, disrupting photosynthesis and enzyme activity in plants. Thus, Mn toxicity is a major constraint limiting plant growth and production, especially in acid soils. To cope with Mn toxicity, plants have evolved a wide range of adaptive strategies to improve their growth under this stress. Mn tolerance mechanisms include activation of the antioxidant system, regulation of Mn uptake and homeostasis, and compartmentalization of Mn into subcellular compartments (e.g., vacuoles, endoplasmic reticulum, Golgi apparatus, and cell walls). In this regard, numerous genes are involved in specific pathways controlling Mn detoxification. Here, we summarize the recent advances in the mechanisms of Mn toxicity tolerance in plants and highlight the roles of genes responsible for Mn uptake, translocation, and distribution, contributing to Mn detoxification. We hope this review will provide a comprehensive understanding of the adaptive strategies of plants to Mn toxicity through gene regulation, which will aid in breeding crop varieties with Mn tolerance via genetic improvement approaches, enhancing the yield and quality of crops.
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