The genetic development of the Chinese Academy of Sciences has found that rice nitrogen uses key genes efficiently

Recently, the research team of the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences made a new breakthrough in the field of efficient use of rice nitrogen, which provided a solution for cultivating rice varieties with both high yield and precocious advantages, and the research was published online on February 24 in the
journal and pushed by the journal as a fine paper in this issue.
researchers in the early stage of the study of nitrate transport protein genes, based on the function of its 1st-origin gene to further explore. The research shows that this congener gene is mainly located in the liquid bubble membrane, induced by ammonium salt, and participates in the regulation of nitrate and ammonium salt utilization in cells in rice. Because nitrous nitrogen and ammonium nitrogen are the two main forms of nitrogen used by plants, especially ammonium nitrogen, it is the main use of rice. Therefore, this functional differentiation of this gene is of great significance to the environmental adaptability of rice.
many multi-point field experiments in Beijing, Changsha and Hainan showed that the over-expression plants of this gene showed significant increase in yield under high and low nitrogen conditions. Especially under low nitrogen conditions, the gene over-expression strain cell yield and nitrogen utilization efficiency can be increased to up to 60%, and under high nitrogen conditions can flower more than 2 weeks early, thus effectively shortening the ripening time of rice. The research results provide a solution for cultivating high-yielding and precocious varieties and overcoming the problem of "greedy late-ripe" caused by high fertilizer in agricultural production, and have great application potential.
years, the rice nitrogen efficiency research team of the Institute of Genetic Development of the Chinese Academy of Sciences and its three national key laboratories have obtained systematic and important results, which have attracted wide attention in relevant fields in the world.
, nitrogen is an essential nutrient for all organisms, and the use of nitrogen fertilizer has played a huge role in increasing crop yield. However, excessive use of nitrogen fertilizer can also lead to crop "green late ripening", resulting in a significant reduction in crop yields. Therefore, improving the efficiency of crop nitrogen fertilizer utilization while avoiding "greedy late ripe" is a major scientific problem in the research of crop nitrogen utilization improvement. Scientists have developed a basic understanding of these processes over the past few decades, but little is known about the molecular mechanisms that regulate nitrogen metabolism and nitrogen utilization. (Source: Science Network Ding Jia)