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Identification of the Bacterial Leaf Spot Pathogen of Poinsettia in China
Author(s) -
Li B.,
Xie G. L.,
Zhang J. Z.,
Janssens D.,
Swings J.
Publication year - 2006
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.2006.01178.x
Subject(s) - biology , xanthomonas campestris , pathovar , poinsettia , 16s ribosomal rna , intergenic region , xanthomonas , botany , microbiology and biotechnology , pathogen , bacteria , pseudomonadaceae , pseudomonas , gene , genetics , inflorescence , genome , bract
Bacterial leaf spot of poinsettia has been first reported in China in 2003 and ascribed to Xanthomonas campestris pv. poinsettiicola following the traditional classification of xanthomonads. The present study was undertaken to elucidate the precise position of the causal bacterium in the newly proposed classification of xanthomonads, three bacterial isolates from China were compared with all known Xanthomonas type strains by a polyphasic approach including carbon source utilization profile, fatty acid methyl esters, analysis of 16S rRNA gene sequence and 16S–23S rDNA intergenic spacer sequences. The results indicated that these Chinese isolates could be further identified as a pathovar of Xanthomonas axonopodis .