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Zhu Ying's research team from the Institute of disease and health, Zhejiang Academy of Agricultural Sciences has made new progress in the field of rice quality and high temperature tolerance

Hits: 3895993 2020-04-27

Recently, the research team of crop quality genetic improvement led by Zhu Ying, researcher of the Institute of disease and health, has made important progress in the research of high-temperature and high-quality rice again. The research paper "high temperature in hibits the acquisition of storage materials by inducing alternative spreading of osbzip58 during filling" is written by Dr. Xu Heng as the first author and Zhu Ying as the corresponding author Stage in rice was published in plant cell & environment, the top journal of plant science, with an impact factor of 5.624 in 2018. High temperature during grain filling can inhibit the accumulation of storage materials (such as starch, protein, lipid, etc.) in rice, which leads to the deterioration of rice quality, but the molecular mechanism is unclear. This study reported a key transcription factor, osbzip58, which regulates the accumulation of storage materials under high temperature. It was found that this gene can regulate the synthesis of starch and storage protein in seeds at the same time. High temperature affects the variable cutting of the gene, induces the production of more low activity osbzip58 protein, thus affecting the accumulation of storage materials in Rice under high temperature. Interestingly, the variable shear efficiency of osbzip58 is significantly different among different rice varieties. Because of the low shear efficiency of high temperature sensitive japonica rice varieties, more low activity osbzip58 protein is produced under high temperature, while the activity of the protein in high temperature insensitive indica rice varieties can maintain relative stability. Therefore, the variable shear of osbzip58 is closely related to the high temperature tolerance in the filling stage. The research results of this gene will help us to further understand the regulation mechanism of rice storage material accumulation under high temperature, and provide a good theoretical basis and gene resources for cultivating high-quality rice varieties with high adaptability under the condition of global warming. This research result is also a new breakthrough of Zhu Ying's team in systematic research on the molecular mechanism of environmental factors affecting rice quality during grain filling. In recent years, the team has published many high-level papers in top journals such as genetics, plant physiology, plant biotechnology journal, theoretical and applied genetics. The research is supported by national key research and development projects, provincial outstanding young scholars, Academy of Agricultural Sciences supported discipline construction and national key office independent design projects. (National Key Laboratory jointly established by Institute of Virology and biotechnology and provincial and ministry)

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