Natural antimicrobial susceptibilities of Plesiomonas shigelloides strains

Flagellation in Plesiomonas Shigelloides Strains

In total, 131 strains of Plesiomonas shigelloides isolated from various sources were tested for peritrichous flagella by a flagella staining method. When incubated on a solid medium for 18 hr at 25 C, peritrichous flagella were demonstrated in 89(68%) of them. With an electron microscope, the peritrichous flagella were clearly distinguished from the lophotrichous ones by their wavelength.

Antimicrobial susceptibility of Plesiomonas shigelloides from patients with diarrhea.

Antimicrobial susceptibility testing was performed on 72 fecal isolates of Plesiomonas shigelloides from patients with diarrhea by using a standard agar dilution technique. All isolates were obtained from a single geographic location. Based on the in vitro activities demonstrated in this study, norfloxacin, ciprofloxacin, and trimethoprim may be effective as oral agents in the treatment of P. s...

Plesiomonas shigelloides in South Australia.

Plesiomonas shigelloides, a motile, oxidase-positive, Gram-negative rod that may possess shigella antigens, was isolated from the faeces of 36 children and two adults. In 13 children the organism was thought to be possibly the cause of enteritis and in eight children there was no evidence of intestinal disease. In nine children with gastroenteritis other enteropathogenic bacteria were found in ...

Expression of hemolytic activity by Plesiomonas shigelloides.

More than 90% of the Plesiomonas shigelloides strains that we tested produced a beta-hemolysin, as judged by the results of agar overlay and contact-dependent hemolysis assays. The hemolysin was cell associated, was active against the erythrocytes of various animal species, and was synthesized at both 25 and 35 degrees C. Activity was lost after thermal or proteolytic treatments or after preinc...

Fatal Plesiomonas shigelloides in a newborn.