Xanthan Pyruvilation Is Essential for the Virulence of Xanthomonas campestris pv. campestris
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چکیده
منابع مشابه
Xanthomonas campestris pv. campestris gum mutants: effects on xanthan biosynthesis and plant virulence.
Xanthan is an industrially important exopolysaccharide produced by the phytopathogenic, gram-negative bacterium Xanthomonas campestris pv. campestris. It is composed of polymerized pentasaccharide repeating units which are assembled by the sequential addition of glucose-1-phosphate, glucose, mannose, glucuronic acid, and mannose on a polyprenol phosphate carrier (L. Ielpi, R. O. Couso, and M. A...
متن کاملXanthomonas campestris pv. campestris possesses a single gluconeogenic pathway that is required for virulence.
Disruption of ppsA, a key gene in gluconeogenesis, of Xanthomonas campestris pv. campestris resulted in the failure of the pathogen to grow in medium with pyruvate or C4-dicarboxylates as the sole carbon source and a significant reduction in virulence, indicating that X. campestris pv. campestris possesses only the malic enzyme-PpsA route in gluconeogenesis, which is required for virulence.
متن کاملXanthan gum production by Xanthomonas campestris pv. campestris 8004 using cassava starch as carbon source
Cassava starch is a main renewable bio-resource with low price and mass production in Guangxi, China. It was used as carbon source in growing Xanthomonas campestris pv. campestris 8004 (Xcc 8004) for xanthan gum production in this study. The xanthan gum yield of gelatinized cassava starch was higher than that of raw cassava starch; the maximal reducing sugar and amylase activity reached 14.30 g...
متن کاملResponse regulator, VemR, positively regulates the virulence and adaptation of Xanthomonas campestris pv. campestris.
Xanthomonas campestris pv. campestris (Xcc) is the causal agent of black rot disease in cruciferous plants. The synthesis of known virulence factors in this organism, such as extracellular enzymes and biofilm, is strictly regulated in response to environmental stimuli. Two-component signal transduction systems sense environmental signals and alter bacterial behavior by regulating gene expressio...
متن کاملBiological role of xanthomonadin pigments in Xanthomonas campestris pv. campestris.
Previous studies have indicated that the yellow pigments (xanthomonadins) produced by phytopathogenic Xanthomonas bacteria are unimportant during pathogenesis but may be important for protection against photobiological damage. We used a Xanthomonas campestris pv. campestris parent strain, single-site transposon insertion mutant strains, and chromosomally restored mutant strains to define the bi...
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ژورنال
عنوان ژورنال: Molecular Plant-Microbe Interactions®
سال: 2016
ISSN: 0894-0282,1943-7706
DOI: 10.1094/mpmi-06-16-0106-r