Effect of the Crude Toxin of Fusarium oxysporum f. sp. cubense Race 4 on the Growth and the Protein Secretion of Bacillus licheniforms
香蕉枯萎病菌粗毒素对地衣芽胞杆菌生长和培养液上清蛋白组成的影响

The effects of the crude toxin of Fusarium oxysporum f. sp. cubense race 4 (Foc 4-zj) on the growth of Bacillus licheniforms R21 strain and its protein secretion were studied. The results showed that the growth of R21 strain was inhibited by the crude toxin produced by Foc 4-zj, and its growth cycle was shorten. The protein contents were decreased and the kinds of protein in the supernatant fluid had changed significantly after treated with crude toxin. High dose of the crude toxin greatly decreased the contents of antagonistic proteins, whereas lower one increased.