Abstract
A year-long survey on the distribution of motile Aeromonas species in the surface waters of riverine and marine environments was conducted. The filtered membranes were directly placed onto the modified Pril-xylose-ampicillin agar for the enumeration of Aeromonas species. High counts of motile aromonads were found in riverine stations and this bacterial population was also observed in significant quantities in polluted marine samples. In the identification of 2,444 isolates, three species of motile Aeromonas were observed. A. caviae (43%) was prevalent followed by A. sobria (35%) and A. hydrophila (20%). A. hydrophila was high in clean riverine samples, A. sobria was predominantly isolated from a stagnant water sampling area, and A. caviae was distributed more in marine samples. Statistical analyses suggested that the densities of Aeromonas were related to the cumulative effect of various physicochemical parameters rather than to a single factor. Among the species of Aeromonas, A. hydrophila, and A. sobria were highly hemolytic whereas only 11% of A. caviae were observed to lyse sheep erythrocytes. Suckling-mouse assay was performed to elucidate the enterotoxicity of motile aeromonads and 21% of the tested strains (one A. caviae strain) were found to produce enterotoxin.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
