Cultivation of sheath blight-resisting transgenic paddy rice and special vector

Abstract

The invention discloses an application of GAFP2 protein in cultivating sheath blight-resisting transgenic paddy rice and a special vector. The invention provides an application of GAFP2 protein or an encoding gene thereof or a recombinant vector in regulating and controlling plant disease resistance. The amino acid sequence of a GAFP2 protein is a sequence 2 inside a sequence table or the (29-171)th site amino acid residue of the sequence 2 inside the sequence table and from an N'tail end. Experiments improve that the GAFP2 is inducted into paddy rice so that transgenic paddy rice is obtained, therefore the resistance of paddy rice sheath blight can be effectively enhanced.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a kind of breeding and special carrier of transgenic rice resistant to sheath blight. Background technique [0002] Rice sheath blight is a soil-borne fungal disease caused by Rhizoctonia solani Kühn. Since the 1960s, along with the popularization of dwarf varieties, dense planting and large-scale application of chemical fertilizers, sheath blight has become one of the three major diseases of rice worldwide, generally causing a 15%-20% reduction in yield, and can reduce yield in severe cases 60%-70%. [0003] The disease is a leaf sheath disease that begins at the base of the plant. Under the conditions of rice populations, two disease peaks are generally formed from the late tillering stage to the early jointing stage and about 20 days before and after the heading stage, especially the latter peak. It spreads horizontally and makes the surrounding healthy plants sick, and the dam...

AI Technical Summary

Problems solved by technology

However, in the current situation of high fertility, large populations, and a large number of young and middle-aged laborers in rural areas, often due to untimely or incorrect methods of medication, the control effect is generally poor. The status of sheath blight as a major disease is becoming more and more prominent, and even In many places in the southern rice region of my country, the disease has risen to become the number one disease of rice

Images