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本文首次报道胨冻样芽孢杆菌XDB1和D4B1对烟草灰霉病菌(Botrytis cinerea)的抑制作用。实验表明,XDB1和D4B1的发酵原液和无细胞提取物具有相同的抑菌效果,而经121℃处理30分钟后,抑菌活性丧失。D481菌株的抑菌活性高于XDB1,钾长石作为基质时的活性高于土壤矿物。但是,XDB1和D481对立枯丝核病菌(R..solani)、西瓜尖孢镰刀菌(F.oxysporum)、腐霉(Pythium sp)、小麦全蚀病菌(G.graminis)、烟炭疽病菌(C.gloeosporides)、烟草赤星病菌(A.alternata)、烟草黑胫病菌(P.nicotianae、串珠镰刀病菌(F.moniliforme)和水稻稻瘟病菌(P.grisea)无抑制作用。
This article first reports on the inhibition of B. thuringiensis XDB1 and D4B1 against Botrytis cinerea. The experimental results showed that the fermentation broth of XDB1 and D4B1 had the same bacteriostatic effect as the cell-free extract, and the antibacterial activity was lost after the treatment at 121 ° C for 30 minutes. The antibacterial activity of strain D481 was higher than that of XDB1, and the activity of potassium feldspar was higher than that of soil minerals when used as matrix. However, the resistance of XDB1 and D481 to R. solani, F. oxysporum, Pythium sp, G. graminis, C. anthracis (C gloeosporides, A. alternata, P. nicotianae, F. moniliforme and P. grisea.