1Department of Cellular Biology, Plant Molecular Biology Institute of the C. N. R. S., 12 Rue du Général Zimmer, 67084, Strasbourg, France; 2Research Institute for Viticulture and Enology, P.O. Box 25, 6000 Kecskemét, Hungary; 3INRA, Station de Recherche Vigne et Vin, Laboratoire de Pathologie Végétale, 28 rue de Herrlisheim, 68021 Colmar, France
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Accepted 23 April 1998.
Crown gall on grapevine is mainly caused by Agrobacterium vitis, which metabolizes tartrate. Competition experiments between a tartrate-utilizing strain and its non-utilizing derivative showed that tartrate utilization confers a selective advantage on grapevine.
© 1998 The American Phytopathological Society