Definitions for xanthomonas
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Xanthomonas, genus Xanthomonas(noun)
a genus of bacteria similar to Pseudomonas but producing a yellow pigment that is not soluble in water
Xanthomonas is a genus of Proteobacteria, many of which cause plant diseases. Xanthomonas Taxonomy The Xanthomonas genus has been subject of numerous taxonomic and phylogenetic studies and was first described as Bacterium vesicatorium as a pathogen of pepper and tomato in 1921. Dowson later reclassified the bacterium as Xanthomonas campestris and proposed the genus Xanthomonas. Xanthomonas was first described as a monotypic genus and further research resulted in the division into 2 groups, A and B. Later work using DNA:DNA hybridization, has served as a framework for the general Xanthomonas spp. classification. Other tools including Multi-locus Sequence Analysis and Amplified Fragment Length Polymorphism have been utilized for classification within clades. So while previous research has illustrated the complexity of the Xanthomonas genus, it appears that recent research has resulted in a clearer picture. More recently, genome wide analysis of multiple Xanthomonas strains mostly support the previous phylogenies.
U.S. National Library of Medicine
A genus in the family XANTHOMONADACEAE whose cells produce a yellow pigment (Gr. xanthos - yellow). It is pathogenic to plants.
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