一种提高水稻抗稻瘟病菌的能力的方法

By overexpressing the OsRNK2 gene in rice, the problem of the difficulty in maintaining the resistance of rice varieties to rice blast fungus in the long term was solved, and the resistance of rice to rice blast fungus was significantly enhanced, which supports the breeding of superior rice varieties and the screening of disease-resistant varieties.

CN122405680APending Publication Date: 2026-07-17SANYA INSTITUTE OF NANJING AGRICULTURAL UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SANYA INSTITUTE OF NANJING AGRICULTURAL UNIVERSITY
Filing Date
2026-06-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The resistance of existing rice varieties to rice blast fungus is difficult to maintain in the long term, and it is difficult to balance resistance with agronomic traits such as yield. Rice blast fungus is highly variable, and existing control methods are limited.

Method used

Overexpression of the OsRNK2 gene in rice, which encodes the receptor-like kinase OsRNK2 that resists rice blast fungus, was achieved by constructing a plant expression vector and transforming rice with Agrobacterium tumefaciens to obtain overexpression lines that enhance resistance.

Benefits of technology

It significantly improved the resistance of rice to rice blast fungus, providing a basis for the breeding of superior rice varieties, especially for the screening and hybridization of disease-resistant varieties to obtain transgenic materials with higher resistance.

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Abstract

本发明属于生物技术领域,公开一种提高水稻抗稻瘟病菌的能力的方法。本发明首次发现类受体激酶OsRNK2正向调控水稻对稻瘟病菌的抗性。进而研究表明,OsRNK2基因在水稻中过表达的转基因植株对稻瘟病菌具有显著的抗性。因此,OsRNK2基因可以用于抗稻瘟病水稻品种的培育,具有较大的应用价值。
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