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Deciphering Interactions between Phosphorus Status and Toxic Metal Exposure in Plants and Rhizospheres to Improve Crops Reared on Acid Soil

文献类型： 外文期刊

作者： Wang, Xiurong 1 ; Ai, Shaoying 2 ; Liao, Hong 3 ;

作者机构： 1.South China Agr Univ, Root Biol Ctr, State Key Lab Conservat & Utilizat Subtrop Agrobio, Guangzhou 510642, Peoples R China

2.Guangdong Acad Agr Sci, Inst Agr Resources & Environm, Guangzhou 510640, Peoples R China

3.Fujian Agr & Forestry Univ, Root Biol Ctr, Fuzhou 350002, Peoples R China

关键词： acid soil; phosphorus; aluminum; manganese; cadmium; interaction; phosphate signaling; resistance; crop improvement

期刊名称：CELLS （ 影响因子：6.0； 五年影响因子：6.7 ）

ISSN：

年卷期： 2023 年 12 卷 3 期

页码：

收录情况： SCI

摘要： Acid soils are characterized by deficiencies in essential nutrient elements, oftentimes phosphorus (P), along with toxicities of metal elements, such as aluminum (Al), manganese (Mn), and cadmium (Cd), each of which significantly limits crop production. In recent years, impressive progress has been made in revealing mechanisms underlying tolerance to high concentrations of Al, Mn, and Cd. Phosphorus is an essential nutrient element that can alleviate exposure to potentially toxic levels of Al, Mn, and Cd. In this review, recent advances in elucidating the genes responsible for the uptake, translocation, and redistribution of Al, Mn, and Cd in plants are first summarized, as are descriptions of the mechanisms conferring resistance to these toxicities. Then, literature highlights information on interactions of P nutrition with Al, Mn, and Cd toxicities, particularly possible mechanisms driving P alleviation of these toxicities, along with potential applications for crop improvement on acid soils. The roles of plant phosphate (Pi) signaling and associated gene regulatory networks relevant for coping with Al, Mn, and Cd toxicities, are also discussed. To develop varieties adapted to acid soils, future work needs to further decipher involved signaling pathways and key regulatory elements, including roles fulfilled by intracellular Pi signaling. The development of new strategies for remediation of acid soils should integrate the mechanisms of these interactions between limiting factors in acid soils.

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