Farm crop fungus resistant polypeptides and method for making same

A technology for crops and fungi, which is applied in the field of anti-crop fungal polypeptides and its preparation, can solve the problems of increased drug resistance of crop fungi, large residues, unsatisfactory fungal curative effects, etc., and achieve good application prospects and specific targeting effects
CN101200727BInactive Publication Date: 2013-06-26畿晋庆堂国际生物技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
畿晋庆堂国际生物技术有限公司
Publication Date
2013-06-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses a novel anti-crop-epiphyte polypeptide and a preparation method thereof. A recombined anti-crop-epiphyte polypeptide is formed by linking gene which codes white candida pheromone and the gene which codes colicin. Compared with the prior anti-crop-epiphyte medicine, the novel anti-crop-epiphyte polypeptide of the present invention has the advantages that the novel anti-crop-epiphyte polypeptide directly forms ionic passage at epiphytic cell membrane to kill the epiphyte, so the killing efficiency is thousands times stronger than the prior anti-crop-epiphyte medicine; the epiphyte can hardly amend the geometrical damage at the cell membrane caused by the polypeptide by the mutation-expression form, so the polypeptide can not induce the epiphyte producing the traditional drug resistance; the polypeptide is a biological preparation and has target killing towards the epiphyte, so the novel anti-crop-epiphyte polypeptide does not have the toxic and side effects of the prior anti-crop-epiphyte medicine.
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Description

technical field

[0001] The present invention relates to a recombinant gene, recombinant plasmid, polypeptide and preparation method of anti-crop fungus polypeptide. Background technique

[0002] Fungal infection is a common hazard to crops. For example, the fungus Pyrrhiza oryzae that causes rice blast causes huge economic losses to my country's rice production every year, and is extremely harmful. With the acceleration of urbanization in the vast agricultural areas of our country, the pollution and deterioration of the ecological environment are increasing day by day, and the incidence of crop diseases has risen sharply. The ecological prevention and control of crop diseases has become a major problem that we must face and solve.

[0003] The curative effect of antibacterial pesticides currently used on crops infected with fungi is not ideal; fungi are eukaryotic cells, and their similarity to human cells makes agricultural antifungal drugs such as tricyclazoles kill human ...

Claims

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