Council for Scientific and Industrial Research, Division of Processing and Chemical Manufacturing Technology, P.O. Box 395, Pretoria 0001, University of Natal Council for Scientific and Industrial Research Unit for Plant Growth and Development, Department of Botany, University of Natal, Pietermaritzburg 3200, and Department of Microbiology, University of Cape Town, Rondebosch 7700, South Africa.
Appl Environ Microbiol. 1988 Dec;54(12):3133-7. doi: 10.1128/aem.54.12.3133-3137.1988.
For a bacterium to be a successful biocontrol agent against crown gall disease, it must produce an effective agrocin specific for Agrobacterium tumefaciens and be able to colonize host plants efficiently. The colonization abilities of K84 and J73, successful and potential biocontrolling strains, respectively, were compared both in vivo and in vitro. Both strains produced fibrils attaching them to tomato root surfaces and had similar colonization efficiencies up to 14 days after inoculation. However, the ability of J73 to colonize plants for longer periods was significantly less than that of K84. Thus, the presence of fibrils is not sufficient to ensure colonization. No correlation was found between hydrophobicity and colonization.
要使细菌成为防治根癌病的成功生物防治剂，它必须产生针对根癌农杆菌的有效农用抗生素，并能够有效地定殖宿主植物。分别比较了成功和潜在的生物防治菌株 K84 和 J73 的定植能力，无论是在体内还是体外。这两种菌株都产生了纤维丝，使它们附着在番茄根表面，并且在接种后 14 天内具有相似的定植效率。然而，J73 定植植物的能力明显低于 K84。因此，纤维丝的存在不足以确保定植。疏水性与定植之间没有相关性。
