CGMCC No. 11542
The invention discloses an engineering strain producing anti-fungal protein genes and a construction method and application thereof. The strain is pET32a(+)-Ap1-BL21, and the preservation serial number is CGMCC No.11542. According to the construction method, double enzyme digestion is carried out on anti-fungal protein AP1 genes and plasmid pET32a(+) through BamH I and XholI, and the anti-fungal protein AP1 genes and the plasmid pET32a(+) are connected through T4DNA ligase and then converted into E.coli BL21 competent cells to obtain the engineering strain pET32a(+)-Ap1-BL21 with the anti-fungal protein genes. The gene engineering strain contains the anti-fungal protein genes, induction time at the temperature of 30 DEG C is short, the expression rate (43.2%) is high, the purification protein yield (124.82 mg/L) is high, the recovery rate (92%) is high, protein has a good inhibiting effect on phytopathogen such as soybean root rot bacteria and fusarium fujikuroi after ITPG inducting, HIS column purifying and enterokinase restriction enzyme digesting are carried out, and the strain provides a novel strain resource for research and development of recombinant protein pesticide.