CsbHLH085 gene for regulating and controlling citrus canker resistance and application of CsbHLH085 gene

The invention discloses a CsbHLH085 gene for regulating and controlling the resistance of citrus canker and application of the CsbHLH085 gene, and relates to the field of agricultural biological genes, the nucleotide sequence of the CsbHLH085 gene for regulating and controlling the resistance of citrus canker is shown as SEQ ID No.1, and the coding protein of the CsbHLH085 gene is citrus alkaline helix-loop-helix protein. The CsbHLH085 gene is matched with an overexpression vector and agrobacterium tumefaciens containing the vector, overexpression of the gene can effectively improve the resistance of citrus to citrus canker, that is, the overexpression vector is constructed, then the citrus is transiently transformed, the canker attack degree of the obtained transgenic material can be reduced to 53.8% of that of an existing citrus material, and the CsbHLH085 gene can be used for preparing the citrus canker. And the canker attack degree can be significantly reduced, and the scab area is reduced, such that the