background: occurrence of resistance against antibioticsand inadequate efficacy of some vaccines necessitates studies ofnatural immunostimulators in aquaculture. shrimps shell derivedfrom chitosan can be used as immune stimulators in fish.objectives: in this study, the effects of oral administration ofchitosan, derived from shrimp shell, on some immune responsesand disease resistance in cyprinu...

objective(s): cuo is one of the most important transition metal oxides due to its captivating properties. it is used in various technological applications such as high critical temperature superconductors, gas sensors, in photoconductive applications, and so on. recently, it has been used as an antimicrobial agent against various bacterial species. materials and methods: here, we synthesized cu...

The occurrence of Aeromonas spp. in the Porsuk River, public drinking water and tap water in the City of Eskisehir (Turkey) was monitored. Fresh water samples were collected from several sampling sites during a period of one year. Total 102 typical colonies of Aeromonas spp. were submitted to biochemical tests for species differentiation and of 60 isolates were confirmed by biochemical tests. F...

..................................................................... ii TABLE OF CONTENTS ....................................................... iv LIST OF TABLES AND FIGURES .......................................... v INTRODUCTION ................................................................ 1 MATERIALS AND METHODS ............................................... 33 RESULTS .................

The antimicrobial susceptibilities of 75 Aeromonas isolates were determined by agar dilution. Differences in resistance patterns were observed between strains isolated from different geographic locations and between A. sobria and A. hydrophila isolates. Multiple resistance was common; however, only one conjugative plasmid was detected. This 110-megadalton plasmid mediated resistance to eight an...

Since 2009, a clonal group of virulent Aeromonas hydrophila strains has been causing severe disease in the catfish aquaculture industry in the southeastern United States. Here, we report draft genomes of four A. hydrophila isolates from catfish aquaculture that represent this clonal group.

Amikacin is a first-line treatment for Aeromonas infection due to high efficacy. There are few reports of aminoglycoside-resistant Aeromonas spp. We report a soft tissue infection containing multiple pathogens, including a strain of Aeromonas hydrophila resistant to amikacin, tobramycin, and multiple cephalosporins.

According to Bergey’s Manual of Systematic Bacteriology [48], the genus Aeromonas includes the following species: Aeromonas hydrophila, Aeromonas bestiarum, Aeromonas salmonicida, Aeromonas caviae, Aeromonas media, Aeromonas eucrenophila, Aeromonas sobria, Aeromonas veronii (biovars sobria and veronii), Aeromonas jandaei, Aeromonas schubertii, Aeromonas trota, Aeromonas allosaccharophila, Aerom...

It is known that Aeromonas spp. possess different chromosomal β-lactamase genes. Presence and phenotypic expression of bla TEM, bla SHV, and bla CTX-M ESBL-encoding genes were investigated in environmental water isolates of Aeromonas hydrophila and Aeromonas jandaei. Presence of bla SHV and bla CTX-M genes was not observed, and bla TEM gene was verified in 91% of the isolates. Sequencing of 10 ...