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罗汉果疱叶丛枝病的病原鉴定
林国光; 周广泉;
广西植物研究所
摘要:
在罗汉果Momordica grosvenori Swingle植株上发生一种黄化型病害,病株严重地抑制生长和降低产量。病叶起疱、丛枝,最终叶片黄化。 电镜的超薄切片观察;在病叶叶脉维管束中的薄壁细胞中,有多种形态的类菌质体,直径约为200~800毫微米,可以看到二分裂和生芽的菌体。 在病株中可找到MLO_s,而在健株中的上述组织中未发现。 四环素在特定条件下,可以抑制症状。
关键词:  病原鉴定  丛枝病  叶片黄化  类菌质体  薄壁细胞  二分裂  超薄切片  抑制生长  草质藤本植物  叶丛枝  
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