Transcription factor for enhancing broad-spectrum disease resistance of plants and application

A plant, disease resistance technology, applied in the field of molecular biology or botany, can solve the problem of poor understanding of regulatory mechanisms and involved transcription factors
CN111662923AActive Publication Date: 2020-09-15CAS CENT FOR EXCELLENCE IN MOLECULAR PLANT SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CAS CENT FOR EXCELLENCE IN MOLECULAR PLANT SCI
Publication Date
2020-09-15

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Abstract

The invention relates to a transcription factor for enhancing broad-spectrum disease resistance of plants and an application. The invention discloses that PIBP1 directly interacts with PigmR and otherbroad-spectrum anti-disease R genes to promote accumulation of own cell nuclear proteins and positively regulate and control disease resistance of plants. The PIBP1 and the homologous gene are combined as a kind of non-classical transcription factors and activate expression of defensive genes such as OsWAK14 and OsPAL1 at the downstream of the non-classical transcription factors. Therefore, the invention provides a new transcription factor which activates a downstream disease-resistant gene through direct interaction with the R gene and endows plants with a new mechanism of disease resistance. The invention not only provides a practical and effective plant improvement method, but also provides a new way for broad-spectrum immune mechanism research of plants and disease resistance breedingof plants.
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Description

technical field

[0001] The invention belongs to the field of molecular biology or botany, and more specifically, the invention relates to a transcription factor for enhancing broad-spectrum disease resistance of plants and its application. Background technique

[0002] Plant diseases can cause a substantial reduction in crop production, or even extinction, seriously affecting global food security. As the main food product in the world, rice feeds nearly half of the population. However, due to the damage of various pathogenic microorganisms to rice in nature, its yield will be reduced to varying degrees every year. Among them, fungal diseases such as rice blast (caused by Magnaporthe oryzae) and bacterial diseases such as bacterial blight (caused by Xanthomonas oryzae pv. oryzae) have the greatest impact on rice yield and quality serious. The annual production reduction caused by rice blast (Magnaporthe oryzae) alone is equivalent to 10-30% of the total production, which c...

Claims

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