Biological control of crown gall through bacteriocin production

Crown gall caused by Agrobacterium radiobacter var. tumefaciens can be controlled biologically by a closely related non-pathogenic bacterium, A. radiobacter var. radiobacter. The control mechanism operates through the production of a bacteriocin by the controlling organism. With one exception, patho...

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Published inPhysiological plant pathology Vol. 4; no. 1; pp. 37,IN11,41 - 40,IN11,44
Main Authors Kerr, A., Htay, Khin
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1974
Subjects
Agrobacterium radiobacter
Agrobacterium tumefaciens
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ISSN0048-4059
DOI10.1016/0048-4059(74)90042-3

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Summary:Crown gall caused by Agrobacterium radiobacter var. tumefaciens can be controlled biologically by a closely related non-pathogenic bacterium, A. radiobacter var. radiobacter. The control mechanism operates through the production of a bacteriocin by the controlling organism. With one exception, pathogenic strains sensitive to the bacteriocin are effectively controlled. The exception is a strain which produces another bacteriocin that inhibits the controlling organism. Pathogenic strains insensitive to the bacteriocin produced by the controlling organism are not subject to biological control. When a bacteriocin-sensitive pathogenic strain is exposed to bacteriocin, resistant colonies develop but these are no longer pathogenic.
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ISSN:0048-4059
DOI:10.1016/0048-4059(74)90042-3