Phenotypic diversity of Xanthomonas sp. mangiferaeindicae.
Pruvost O., Couteau A., Perrier X., Luisetti J.
Author Affiliation: CIRAD/INRA, Laboratoire de phytopathologie, Saint Pierre, Reunion Island, France.
Journal of Applied Microbiology 84 : 115-124
Abstract : Carbohydrate utilization profiles by means of the API (Appareils et Procédés d'Identification) system and sensitivity to antibiotics and heavy metal salts of 68 Xanthomonas sp. mangiferaeindicae [X. campestris pv. mangiferaeindicae] strains isolated in 9 countries from mango and other genera of the Anacardiaceae were examined to assess the variability of the taxon. The strains could be separated into 10 groups according to Ward clustering. Apigmented strains isolated from the pepper tree (Brazilian pepper) (Schinus terebinthifolius) could not be clearly differentiated from most apigmented strains isolated from mango. Yellow-pigmented strains isolated from mango in Brazil and Réunion Island, apigmented strains isolated from mango in Brazil and from ambarella in the French West Indies, clustered in distinct groups. The results are consistent with those of other studies, based on isoenzyme analysis of esterase, phosphoglucomutase and superoxide dismutase, and hrp-RFLP analysis, indicating the need for a comprehensive taxonomic evaluation of xanthomonads associated with Anacardiaceae.