OsHAC4 is critical for arsenate tolerance and regulates arsenic accumulation in rice

• Published in: The New phytologist Vol. 215; no. 3; pp. 1090 - 1101
• Main Authors: Xu, Jiming, Shi, Shulin, Wang, Lei, Tang, Zhong, Lv, Tingting, Zhu, Xinlu, Ding, Xiaomeng, Wang, Yifeng, Zhao, Fang‐Jie, Wu, Zhongchang
• Format: Journal Article
• Language: English
• Published: England New Phytologist Trust 01.08.2017; Wiley Subscription Services, Inc
• Subjects: Accumulation; Adaptation, Physiological - drug effects; arsenate; arsenate reductase; Arsenate Reductases - metabolism; Arsenates; Arsenates - toxicity; Arsenic; arsenic (As); Arsenic - metabolism; arsenic accumulation; arsenite; Base Sequence; Cloning, Molecular; Complementation; Contamination; Cytoplasm; Detoxification; E coli; Efflux; enzyme activity; Epidermis; epidermis (plant); Escherichia coli; Gene expression; Gene Expression Regulation, Plant; genes; Genetic Complementation Test; Genetics; Grain; Localization; mutants; Mutation; Mutation - genetics; Nuclei; Nucleus; Oryza - genetics; Oryza - metabolism; Phenotype; Phenotypes; Phytotoxicity; Plant Proteins - metabolism; Plant Roots - metabolism; Plant Shoots - metabolism; Pollution; Protein Transport; Proteins; Reductase; Rice; rice (Oryza sativa); Roots; Shoots; Skin; Soil; Soil contamination; Soil pollution; Subcellular Fractions - metabolism; Tests; Time Factors; Transgenic plants; Xylem - metabolism; arsenic (As); arsenic accumulation; rice (Oryza sativa); arsenite; arsenate reductase; detoxification; arsenate

Soil contamination with arsenic (As) can cause phytotoxicity and elevated As accumulation in rice grain. Here, we used a forward genetics approach to investigate the mechanism of arsenate (As(V)) tolerance and accumulation in rice. A rice mutant hypersensitive to As(V), but not to As(III), was isola...