Relationship of wild type strain motility and interaction with host plants in Ralstonia solanacearum

文献类型： 外文期刊

第一作者： Mao, GZ

作者： Mao, GZ;He, LY

作者机构：

期刊名称：BACTERIAL WILT DISEASE: MOLECULAR AND ECOLOGICAL ASPECTS

ISSN：

年卷期： 1998 年

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收录情况： SCI

摘要： Thirty of 104 wild type strains of Ralstonia solanacearum were observed to have swarming ability in semisolid agar medium after 48 hours incubation and swimming ability in SMM medium without agar after 4 hours. Ninety percent of cells of motile wild type strains from 24h-old cultures on TZC agar had 1-4 polar flagella. In contrast, non-motile wild type strains had no flagella. Motile wild type strains moved dramatically towards and accumulated near the root segments of host plants and some non-host plants. Non-motile strains did not respond to the root segments of either host or non-host plants. Motile wild type strain PO75 caused earlier and more severer disease incidence in potato plants than non-motile strain PO41 did when the naturalistic non-wounded root-soil pouring inoculation method was utilized.

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