Induction of Nitric Oxide Synthase in Channel Catfish 'Ictalurus punctatus' by'Edwardsiella ictaluri'

摘要

Channel catfish, ictalurus punctatus, were injected intraperitoneally with thelive cells of Edwardsiella ictaluri and held in flow-through tanks for the five days. The head kidneys from injected and control fish were removed and the nitric oxide synthase activity measures. Activities found were 0.15 nanomoles L-citrulline formed per mg protein per minute for the injected fish, and 0.03 nanomoles/mg/min for the control fish.