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Xanthomonas campestris is commonly used industrially to produce a water-soluble exo-polysaccharide, known as xanthan gum, from fermentation of carbon sources like glucose. [5] In this process, a preserved culture of the gram-negative bacterium is expanded through growth and then used as an inoculum in bioreactors with liquid growth media .
Xanthomonas (from greek: xanthos – "yellow"; monas – "entity") is a genus of bacteria, many of which cause plant diseases. [1] There are at least 27 plant associated Xanthomonas spp., that all together infect at least 400 plant species. Different species typically have specific host and/or tissue range and colonization strategies.
Xanthomonas axonopodis has the capability to form a biofilm for attachment on the host. The biofilm is the result of the production of extracellular polysaccharides . The biofilm ensures the virulence and epiphytic survival of X. axonopodis pv. citri prior to the development of citrus canker.
Diffusible signal factor (DSF) is found in several gram-negative bacteria and play a role in the formation of biofilms, motility, virulence, and antibiotic resistance. [1] Xanthomonas campestris was the first bacteria known to have DSF. [1] The synthesis of the DSF can be seen in rpfF and rpfB enzymes. [2]
Stenotrophomonas maltophilia is an aerobic, nonfermentative, Gram-negative bacterium.It is an uncommon bacterium and human infection is difficult to treat. [1] Initially classified as Bacterium bookeri, [2] then renamed Pseudomonas maltophilia, S. maltophilia was also grouped in the genus Xanthomonas before eventually becoming the type species of the genus Stenotrophomonas in 1993.
Warm and wet conditions favor plant infection by Xcc and the development of disease. [6] [8] Free moisture is required for host invasion, considering that the natural route of infection is through the hydathodes. The optimum temperature range for bacterial growth and host symptom development is between 25° and 30 °C.
Leaf spot on English ivy plant, caused by Xanthomonas hortorum: Scientific classification; Domain: Bacteria: Phylum: Pseudomonadota: Class: Gammaproteobacteria: Order: Xanthomonadales: Families Xanthomonadaceae Christensen and Cook 1978 emend. Naushad et al. 2015; Rhodanobacteraceae Naushad et al. 2015; Synonyms; Lysobacterales Christensen and ...
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.