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Black rot, caused by the bacterium Xanthomonas campestris pv. campestris (Xcc), is considered the most important and most destructive disease of crucifers, infecting all cultivated varieties of brassicas worldwide. [1] [2] This disease was first described by botanist and entomologist Harrison Garman in Lexington, Kentucky, US in 1889. [3]
Xanthomonas campestris pv.vesicatoria is a bacterium that causes bacterial leaf spot (BLS) on peppers and tomatoes. It is a gram-negative and rod-shaped. [1] It causes symptoms throughout the above-ground portion of the plant including leaf spots, fruit spots and stem cankers.
Xanthomonas campestris pv. raphani is a gram-negative, obligate aerobic bacterium that like many other Xanthomonas spp. bacteria has been found associated with plants. This organism is closely related with Xanthomonas campestris pv. campestris, but causes a non-vascular leaf spot disease that is clearly distinct from black rot of brassicas.
Xanthomonas axonopodis pv. malvacearum Bacterial blight of cotton is a disease affecting the cotton plant resulting from infection by Xanthomonas axonopodis pathovar malvacearum (Xcm) a Gram negative, motile rod-shaped, non spore-forming bacterium with a single polar flagellum
Bacterial blight is a disease of barley caused by the bacterial pathogen Xanthomonas campestris pv. translucens (syn. X. translucens). It has been known as a disease since the late 19th century. It has a worldwide distribution. [1] [2]
Relationships between Xanthomonas campestris bacteria and plants can be both compatible and incompatible. It is in the compatible relationships, where the bacteria are able to overcome the host's defenses, rather than experience attenuated growth, that disease symptoms will be seen in the plants. [3]
Xanthomonas campestris pv. juglandis overwinters in the walnut buds, catkins, leaves, and infected fruit still hanging on the tree, and twig lesions. [2] During this time, these buds may remain asymptomatic even just a few days before budburst. In the spring, when the buds begin to open, the bacteria invade and begin infecting the internal bud ...
Causes of this disease include Xanthomonas euvesicatoria and Xanthomonas perforans = [Xanthomonas axonopodis (syn. campestris) pv. vesicatoria], Xanthomonas vesicatoria, and Xanthomonas gardneri. In some areas where infection begins soon after transplanting, the total crop can be lost as a result of this disease. [16] Xanthomonas campestris pv.