The scientific research team discovered that the rust bacteria infected "real murderer" in wheat

Scientific Research Team of Northwest Agriculture and Forestry University of Agriculture and Forestry

I found that the rust bacteria infection in the wheat was found "real murderer"

【Technological frontier】

Our newspaper Xi'an, July 14 (Reporter Zhang Zhehao and Li Jie correspondent Yang Yuanyuan) On the 14th, the top international journal "Cell" published an online journal of the Northwest Agricultural and Forestry University of Agriculture and Forestry University of Agriculture and Forestry. The "true murderer" of rust bacteria infection -sensor gene, and through knockout sensor genes, so that wheat is not easy to suffer from rusty bacteria, opened up new ideas and new ways of disease -resistant wheat breeding.

Wheat is one of the most widely planted grain crops in the world. It provides staple foods for more than 2.5 billion people around the world and is an important food crop. However, pests and pests often cause major losses of wheat output, which seriously threatens food safety. Wheat rust is a fungal disease with ingenuity. It has the characteristics of vulnerable and popularity. It is the number one biological disaster that affects wheat. It occurs in wheat planting areas around the world. my country has always been a severe area. Since the founding of New China, eight major popularity has occurred. After the prevention and treatment, it still causes a total of 13.8 billion kilograms of wheat output. Therefore, rust is called the "cancer" of wheat.

Wheat rust disease spreads due to rust bacteria. Rust bacteria is a kind of living nutrition parasitic fungi that depends on living wheat to survive. The plant immune team focuses on the nutrition parasitic characteristics of wheat rusty bacteria, and tapped the world's first wheat sensor gene TAPSIPK1, which was used by the toxic protein of the germs -coded cytoprocin kinase. Sensitivity gene is responsible for regulating the basic immunity of wheat. The toxic protein PSSPG1 that can be secreted by rusty bacteria can be hijacked. From the cytoplasma film, it is released into the nucleus. Apricate Tapsipk1 -mediated sensing effects and promote wheat sensation. The results system revealed the sensorization mechanism of PSSPG1-TAPSIPK1-TACBF1D, and the phosphorylation and transcriptional regulatory level pathway was mediated, and the genetic editing technology accurately knocked out the sensory genes, destroying the identification and mutual mutual identification and interoperability of the toxic protein and sensory genes. The work realizes the broad -spectrum of wheat to strip rust. In the field test, the wheat editorial department shows the characteristics of high anti -strip rust on the premise of maintaining the main characteristics of the crops and has great application potential.

The significance of this achievement is that it is the original major achievement of the identification and utilization of wheat sensory genes. It is a leap breakthrough in realizing the control of the germs and the original independent innovation capabilities of the seed industry. The discovery of wheat sensory genes is a major breakthrough in the field of plants and pathogenic bacteria, marking a big step in our country in this field and at the world's leading level. At the same time, the study broke the traditional ideas of the current major use of diseased genetic breeding, enriched the type of genes available to disease -resistant breeding, opened a new way for wheat biochemical breeding, and provided technology for the green prevention and control of modern biological breeding and diseases in my country. support.

Wang Ning, a postdoctoral University of Agriculture and Forestry University of Agriculture and Forestry, Tang Chunlei and doctoral students Fan Xin, as the first author of the paper, Professor Wang Xiaojie and Academician Kang Zhen Sheng as a communications author. The Northwest University of Agricultural and Forestry Science and Technology is the first author unit. Zhou Jianmin, a researcher at the Institute of Genetics and Development Biology, Institute of Genetics and Development, participated in the research work. The research has been supported by projects such as key national research and development plans, National Natural Science Foundation, National Wheat Industry Technology System, and Shaanxi Science and Technology Innovation Team.

【Edit: Song Yusheng】

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