Advances in molecular mechanisms underlying cadmium uptake and translocation in rice

Hao Ai; Daxia Wu; Chunli Li; Mengmeng Hou

doi:10.3389/fpls.2022.1003953

Advances in molecular mechanisms underlying cadmium uptake and translocation in rice

Front Plant Sci. 2022 Sep 20:13:1003953. doi: 10.3389/fpls.2022.1003953. eCollection 2022.

Authors

Hao Ai¹, Daxia Wu², Chunli Li^{3

4}, Mengmeng Hou³

Affiliations

¹ Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China.
² State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Plant Nutrition and Fertilization in Low-Middle Reaches of the Yangtze River, Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China.
³ Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
⁴ State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China.

Abstract

The increasing cadmium (Cd) pollution in paddy fields has severely threatened China's ecological and food safety. Cultivation of low Cd accumulation varieties to reduce Cd content in rice or cultivation of Cd-tolerant varieties for phytoremediation are considered effective methods to control Cd pollution in paddy fields. However, the underlying molecular mechanism of Cd absorption and transport by rice plants needs to be deciphered to cultivate these varieties. Here, we summarized the molecular mechanisms underlying Cd absorption and transport in rice, as well as the variation of Cd accumulation among rice varieties, the QTLs related to Cd accumulation in rice, and discusses the direction of future research.

Keywords: cadmium (Cd); quantitative trait locus (QTL); rice (Oryza sativa L.); translocation; transporter; uptake.

Publication types

Review