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unknown
灰黄霉素对尖孢镰刀菌抑制作用的研究
Authors
于晓杰
刘波
+5 more
刘芸
朱育菁
李智聪
胡桂萍
陈清西
Publication date
25 October 2011
Publisher
Abstract
为进一步扩展灰黄霉素的农业应用范畴,选择采自甜瓜、黄瓜、西瓜、苦瓜、辣椒和西红柿的不同专化型的10株致病性尖孢镰刀菌作为试验对象,系统研究了灰黄霉素对尖孢镰刀菌的抑制作用。分别采用抑菌圈法和抑菌率法,测定灰黄霉素对不同寄主来源的尖孢镰刀菌的抑制作用,并显微观察灰黄霉素对尖孢镰刀菌菌丝生长的影响。结果表明,灰黄霉素对不同寄主来源的尖孢镰刀菌具有良好的广谱抑制作用,但对不同菌株抑制效果差异显著,其抑制中浓度IC50为0.42~2.81mM。尖孢镰刀菌经4mM灰黄霉素处理后,菌丝变得稀疏、畸形、膨大、扭曲,从而影响其生长。因此,灰黄霉素可用于开发防治作物枯萎病的新型生物农药
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Last time updated on 16/06/2016