Three selective media for differentiation of Klebsiella pneumoniae from Enterobacter aerogenes on the basis of colonial morphology were evaluated. Using methyl violet 2B as a selective agent, strains of K. pneumoniae isolated from urine, fresh water, and fresh produce were tested against other members of Enterobacteriaceae in addition to strains of Aeromonas hydrophila and Pseudomonas aeruginos...

Aeromonas hydrophila was obtained from various sources and identified on the basis of growth on selective media, phenotypic and biochemical characters. The isolates (Ah1-Ah9) were subjected to antibiotic susceptibility and resistance pattern tests. The isolates showing maximum resistance to most of the commercial antibiotic discs used were selected. The selected isolate (Ah7) was further subjec...

An easier assessment model would be helpful for high-throughput screening of Aeromonas virulence. The previous study indicated the potential of Tetrahymena as a permissive model to examine virulence of Aeromonas hydrophila. Here our aim was to assess virulence of Aeromonas spp. using two model hosts, a zebrafish assay and Tetrahymena-Aeromonas co-culture, and to examine whether data from the Te...

The production of a β-lactamase can be induced by the presence of a β-lactam in the culture medium. Three distinct mechanisms have been discovered. In Bacillus licheniformis and Staphylococcus aureus, a penicillin receptor whose properties are similar to those of a PBP detects the presence of the antibiotic. In Citrobacter freundii, the damage caused by β-lactams to the peptidoglycan is detecte...

aeromonas hydrophila is a causative agent of a number of human infections. aeromonads have been isolated from patients with diarrhea. in spite of a number of virulence factors produced by aeromonas species, their association with diarrheal diseases has not been clearly linked. in current study, 1546 fecal samples of a randomly selected population were screened for presence of a. hydrophila. out...

A total of 49 Aeromonas isolates obtained from food animals and immunocompromised human cancer patients from Nagpur, were investigated for antibiotic sensitivity pattern by disc diffusion method. Aeromonas spp. exhibited different level of antibiotic sensitivity based on the zone of inhibition observed around the antibiotic disc. Most of the isolates exhibited highest sensitivity towards ceftaz...

A total of 193 strains representing 14 different Aeromonas genomospecies were evaluated for 63 phenotypic properties to create useful tables for the reference identification of mesophilic aeromonads. Only 9 of 62 biochemical tests (14%) yielded uniform results, and the fermentation of certain carbohydrates was found to be linked to specific species. A number of unusual or aberrant properties fo...

Chironomids (Diptera: Chironomidae), also known as non-biting midges, are one of the most abundant groups of insects in aquatic habitats. They undergo a complete metamorphosis of four life stages of which three are aquatic (egg, larva, and pupa), and the adult emerges into the air. Chironomids serve as a natural reservoir of Aeromonas and Vibrio cholerae species. Here, we review existing knowle...