摘要
抗菌素是经枯草芽孢杆菌Bacillussubtills (Ehrenberg)CohnXM1 6拮抗菌株的发酵、提取制备的。室内测定 5%抗菌素可湿性粉剂的 2 0 0 0倍液 ,对Alternariaalternata、Trichotheciumroseum和FusariumSP .3种苹果霉心病主要病原的抑制效果分别为 92 8%、 88 5%和 88 3%。其抑菌机制主要是使病菌孢子和菌丝畸变 ,细胞壁溶解 ,原生质泄漏。 1 999年和 2 0 0 0年连续两年对苹果霉心病进行小区防治试验 ,红富士和红星品种霉心病的病果率分别为 1 5 3%、 1 2 5%和 1 4 7%、 1 3 0 % ,而对照的发病率分别为 47 0 %、 47 7%和 48 0 %、 46 5% ;抗菌素的防治效果分别为 69 7%、 74 4%和 71 5%、74 9% ,明显高于化学药剂处理的 2 2 2 %、 2 7 3%和 2 6 7%、 2 7 8%的效果 ;两年的试验结果基本一致。
The imhibitory action to pathogenic fungi of Alternairia alternata,Trichothecium reoseum and Fusarium SP.were 92 8% and 88 5% and 88 3% respectively by antibiotic of Bacillus subtilis(Ehrenberg)Cohn XM16 strain.The antifungal mechanism was mainly deformation of the spore and cell of hypha and disintegration of the cell wall.The diseased fruit rate with antibiotic of XM16 were 15 3% and 12 5% or 14 7% and 13 0% respectively in Red Fuji and Starking in 1999 or 2000.Diseased fruit rate of ck were 47 0% and 47 7% or 48 0% and 46 5% in Red Fuji and Starking the same years.The control efficacy with antibiotic of XM16 was better than chemical fungicide.
出处
《微生物学通报》
CAS
CSCD
北大核心
2001年第3期11-14,共4页
Microbiology China
关键词
抗菌素
苹果霉心病
抑制作用
防治效果
Antibiotic,Apple mould core,Inhibitory action,Control efficacy
