Plesiomonas shigelloides, a potential pathogen of enteritis in Ictalurus punctatus

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.

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 ...

Fatal Plesiomonas shigelloides in a newborn.

Plesiomonas shigelloides Infection in Southeast China

BACKGROUND Plesiomonas shigelloides can cause gastroenteritis and extra-intestinal diseases in humans. However, the prevalence of P. shigelloides infections has not been investigated in China. METHODS Consecutive fecal specimens from outpatients with acute diarrhea and non-diarrheal patients at nine sentinel hospitals in southeast China were collected from March 2010 to May 2012. Bacterial pa...

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...