Golovanova I L, Golovanov V K
Zh Evol Biokhim Fiziol. 2014 Jan-Feb;50(1):25-30.
An increase in sensitivity of glycosidases of intestinal mucosa has been established in fry of goldfish Carassius auratus, carp Cyprinus carpio, roach Rutilus rutilus, and common perch Perca fluviatilis to action in vitro of heavy metal ions (copper and zinc at concentrations of 0.1-25 mg/l) at heating of water at the summer period. The inhibitory effect of copper and zinc ions as a rule was higher at the heating rate of 50 degrees C/h than at the rate of 4 degrees C/h. Glycosidases of the perch were less sensitive to an increase of temperature and to the copper ion action as compared with enzymes of the carp fish species.
已证实,在夏季水温升高时,金鱼(Carassius auratus)、鲤鱼(Cyprinus carpio)、拟鲤(Rutilus rutilus)和河鲈(Perca fluviatilis)幼鱼肠道黏膜糖苷酶对重金属离子(浓度为0.1 - 25 mg/l的铜和锌)体外作用的敏感性增加。通常,铜离子和锌离子在50℃/h升温速率下的抑制作用高于4℃/h升温速率下的抑制作用。与鲤鱼的酶相比,河鲈的糖苷酶对温度升高和铜离子作用的敏感性较低。