Hemolytic activity and siderophore production in different Aeromonas species isolated from fish.
The hemolytic activity and siderophore production of several strains of motile aeromonads were determined. The hemolytic activity of Aeromonas caviae and Aeromonas eucrenophila was enhanced after trypsinization of the samples. The enhancement of hemolysis was observed in strains that carried an aerolysin-like gene, detected by a PCR procedure. Siderophore production was demonstrated in all but one strain of Aeromonas jandaei. No apparent relationship was observed between the presence of plasmid DNA and hemolysis or siderophore production.
Santos
J A
JA
Department of Food Hygiene and Food Technology, Veterinary Faculty, University of León, E-24071 León, Spain. dhtjsb@unileon.es
González
C J
CJ
Otero
A
A
García-López
M L
ML
D000333:Aeromonas / Q000302:isolation & purification / Q000472:pathogenicity* / Q000502:physiology*; D000818:Animals; D001427:Bacterial Toxins / Q000235:genetics*; D017859:Esocidae / Q000382:microbiology*; D006460:Hemolysin Proteins / Q000235:genetics; D006461:Hemolysis; D017686:Oncorhynchus mykiss / Q000382:microbiology*; D010957:Plasmids; D016133:Polymerase Chain Reaction; D052899:Pore Forming Cytotoxic Proteins; D011817:Rabbits; D012756:Sheep; D017262:Siderophores / Q000096:biosynthesis*; D014337:Trout / Q000382:microbiology*
D001427:Bacterial Toxins; D006460:Hemolysin Proteins; D052899:Pore Forming Cytotoxic Proteins; D017262:Siderophores; C032676:aerolysin