previously , it had been shown that an avirulent strain of salmonella typhimurium , sl5316 , with wild-type lipopolysaccharide ( lps ) was a far better colonizer of the streptomycin-treated cd-1 mouse large intestine , was far more motile , did not bind to mouse intestinal mucus nearly as well as , but penetrated through a layer of intestinal mucus in vitro far better than an almost isogenic lps-deficient transductant , sl5325 .
C0021851
large intestine
C0021853
intestinal