文献类型： 外文期刊
作者： Wu, Jinping 1 ; Diao, Ying 1 ; Gu, Yucheng 2 ; Hu, Zhongli 1 ;
作者机构： 1.Wuhan Univ, Coll Life Sci, Minist Educ Plant Dev Biol, Key Lab, Wuhan 430072, Peoples R China
2.Hubei Acad Agr Sci, Ind Crops Inst, Wuhan 430064, Peoples R China
关键词： Amorphophallus konjac;bacterial soft rot;infection pathways
期刊名称：AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH （ 影响因子：0.539； 五年影响因子：0.564 ）
ISSN： 1996-0808
年卷期： 2010 年 4 卷 14 期
页码：
收录情况： SCI
摘要： With the rapid expansion of cultivated land, bacterial soft rot of konjac is more and more serious. The main pathogen is Erwinia carotovora subsp. carotovora. Some researchers think the natural openings and wounds are the main infection pathways on konjac. In this study, the infection pathways are investigated. From macro-observation, the soft-rot pathogens could not directly invade the intact corms, but it could invade the infected corms through the new rots. At the same time, bud scales, roots and wounded corms could be directly infected. From micro-observation, the epidermis of the corm had no stomas and lenticels, the stomas of the bud scales had no pathogens gathered around, and the pathogens broke down the infected roots and bud scales cells layer by layer. The results showed that soft rot pathogens invaded Amorphophallus konjac through the wounds and the growth of the organizations rather than the natural openings.
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