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Correlation between binding of Agrobacterium tumefaciens by root cap cells and susceptibility of plants to crown gall

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Abstract

We compared the binding of Agrobacterium tumefaciens by freshly isolated root cap cells with susceptibility of plants to crown gall tumorigenesis. A high binding reaction was strongly correlated with susceptibility to tumorigenesis in a survey of the binding of strain B6 to cells from 48 species in 17 families. In reciprocal experiments with nine virulent A. tumefaciens strains, tumors developed in plant-bacteria combinations that gave a high binding response in the root cap cell assay. Binding was quantified by direct measurement of the number of bacteria bound to the periphery of individual cells. Root cap cells from six susceptible species bound significantly more bacteria than did cells from five resistant species.

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Authors and Affiliations

  1. College of Agriculture, University of Arizona, 85721, Tucson, AZ, USA

    M. C. Hawes & S. G. Pueppke

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  1. M. C. Hawes
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  2. S. G. Pueppke
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Communicated by J.M. Widholm

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Hawes, M.C., Pueppke, S.G. Correlation between binding of Agrobacterium tumefaciens by root cap cells and susceptibility of plants to crown gall. Plant Cell Reports 6, 287–290 (1987). https://doi.org/10.1007/BF00272000

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  • DOI: https://doi.org/10.1007/BF00272000

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