RT Journal Article SR Electronic(1) A1 Whitfield, C. A1 Sutherland, I. W. A1 Cripps, R. E.YR 1981 T1 Surface Polysaccharides in Mutants of Xanthomonas campestris JF Microbiology, VO 124 IS 2 SP 385 OP 392 DO https://doi.org/10.1099/00221287-124-2-385 PB Microbiology Society, SN 1465-2080, AB Mutagenesis of Xanthomonas campestris yielded two major classes of mutant, both having cell surface polysaccharides fundamentally different from the wild-type. The wild-type bacterium produced copious amounts of extracellular slime polysaccharide containing glucose, mannose and glucuronic acid in a ratio of 2:2:1. ‘Non-mucoid’ mutants produced trace amounts of exopolysaccharide identical to the wild-type product; ‘crenated’ mutants produced material with an unusual composition containing sugars normally found in the lipopolysaccharide. Analysis of lipopolysaccharide fractions from these strains showed that the wild-type polysaccharide fraction contained predominantly glucose. Polysaccharides from the two classes of mutant bacteria were similar and contained rhamnose, galactose and smaller amounts of glucose., UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-124-2-385