Inorganic arsenic toxicity mechanism and its mitigation strategy improve the safety quality of rice

Original title: Inorganic arsenic toxicity mechanism and its mitigation strategy to improve the safety
rice, December 14,
China
Rice
Research Institute Rice Quality Genetic Improvement Innovation Team published a commentary online in the journal Journal of Hazardous Materials entitled "Inorganic Arsenic Toxicity and
Strategies in Rice", providing an important theoretical basis for rice safety in rice safety applications such as low
arsenic
accumulation and molecular design breeding, low arsenic rice
safe production
technology integration applications.
Arsenic (As) is widely distributed in nature, common in the food chain with a metallic harmful metal elements, because its detoxification method is similar to heavy metals, so arsenic in the environmental pollution category as a heavy metal element, is commonly known as "five poisons (lead, mercury, cadmium, chromium, arsenic), " chronic arsenic poisoning can cause skin lesions, nerves, digestion and cardiovascular disorders. Monolithic arsenic is non-toxic, while arsenic compounds are toxic. Arsenic compound properties can be divided into inorganic arsenic (iAs) and organic arsenic (oAs), inorganic arsenic is more toxic than organic arsenic, triethic arsenic (As(III)) is more toxic than pentax arsenic (As(V), and arsenic in soil is mainly present in the inorganic form of As(V) and As (III). Excessive accumulation of arsenic (especially inorganic arsenic) in rice poses a potential health risk to rice consumers. Studies have shown that the inorganic arsenic content accumulated in rice is much higher than that of other cereal crops, and the inorganic arsenic content in rice is significantly higher than that of organic arsenic.
research system summarizes the molecular mechanism and key functional genes of inorganic arsenic absorption, metabolism and detoxification in rice, and summarizes the soil pH, redox potential, soil microbiome composition and activity, mineral element types and organic matter content. The influence of non-biological factors on arsenic morphology and migration capacity in rice fields, the methods and problems of arsenic detoxification or low arsenic accumulation used in rice are expounded, and finally, the technical elements of arsenic low accumulation rice safety production are put forward, such as comprehensive biotechnology, nanotechnology and field cultivation management measures.
research has been jointly funded by the National Natural Science Foundation of China, major projects for the cultivation of new varieties of genetically modified organisms, innovative projects of the Chinese Academy of Agricultural Sciences, and key research and development programs of the China Rice Research Institute. Amos Musyoki Mawia, Hui So-tao and Zhou Liang, first authors of the high-quality rice breeding group, Hu Peisong is the first author of the paper, Hu Peisong is the author of the communication, Hu Shi kai is an associate researcher and Luo Ju is a researcher and a co-author of the communication.
article link: