Xanthomonas hortorum
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Xanthomonas hortorum is a plant pathogen. It includes the following pathovars:
- pv. hederae, common ivy and possibly other Araliaceae[1]
- pv. taraxaci, Pelargonium peltatum[1]
- pv. carotae, wild carrot[1]
- pv. pelargonii, Kazakh dandelion
- pv. vitians, bacterial leafspot and headrot of lettuce, using the neopathotype of LMG 938[1]
- pv. cynarae, formerly Xanthomonas cynarae, pathogenic on artichoke[1]
- pv. gardneri, formerly Xanthomonas gardneri and briefly X. cynarae pv. gardneri, bacterial leafspot of peppers and tomatoes (pathotype also causes BLS on lettuce surprisingly)[1]
The species was originally defined in 1995 as a grouping of pathovars hederae, taraxaci, carotae, pelargonii from Xanthomonas campestris, and the lettuce-infecting part of X. c. pv. vitians. (X. c. pv. vitians was found to consist of two genetic groups, only one of which causes disease on lettuce.)[1]
References
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