Show simple item record

dc.contributor.author戴家银
dc.contributor.author郑微云
dc.contributor.author王淑红
dc.date.accessioned2016-05-17T03:01:45Z
dc.date.available2016-05-17T03:01:45Z
dc.date.issued1998
dc.identifier.citation环境科学,1998,(5):61-63
dc.identifier.issn0250-3301
dc.identifier.otherHJKZ805.015
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/108522
dc.description.abstract研究水中Cu2+、zn2+对真鲷幼鱼组织CAT、gPT、胃蛋白酶活性的影响.结果表明:真鲷幼鱼暴露于不同浓度Cu2+(0.5、0.75、1.5Mg/l)、zn2+(1、2、4Mg/l)海水中4d后,Cu2+、zn2+对鳃、肝脏CAT,胃蛋白酶都有抑制作用.当Cu2+浓度最大时,对鳃、肝脏CAT,胃蛋白酶抑制率分别为73%、34%和42.8%;当zn2+浓度最大时,对3种酶活性的抑制率分别为30%、68.5%和32.8%.Cu2+、zn2+尤其可使真鲷肝脏gPT活性显著降低,当Cu2+、zn2+浓度最大时,肝脏gPT活性分别是对照组的24%和33%.Cu2+、zn2+对真鲷幼鱼组织中3种酶活性的抑制作用均有剂量-效应关系
dc.description.abstractThis paper reported the effects of Cu2+ and Zn2+ on activities of catalase (CAT),glutamicpyruvic transaminase (GPT) and pepsin in the tissues of red sea bream P.major.Red sea breams were exposed to different concentrations of cupric sulfate solution (0.5,0.75,1.5mg/L)and zinc sulfate solution (1,2,4mg/L)for 4 days.The results showed that the CAT activities in gill and liver and pepsin activities were inhibited by Cu2+ and Zn2+.At the highest Cu2+ concentration groups,the CAT activities in gill and in liver and pepsin activities decreased 73%,33% and 428% in relation to control,respectively,while at the highest Zn2+ concentration groups,the CAT,GPT and pepsin activities decreased 30%,685% and 328% in relation to control,respectively.The GPT activities of liver in P.major decreased at all exposure groups.The GPT activities of liver decreased 76% and 67% in relation to control at highest Cu2+ and Zn2+ concentration groups,respectively.The effects of Cu2+ and Zn2+ on the CAT,GPT and pepsin had concentrationresponse relationship.
dc.description.sponsorship福建省自然科学基金
dc.language.isozh_CN
dc.subject
dc.subject
dc.subject真鲷
dc.subjectCAT
dc.subjectGPT
dc.subject胃蛋白酶
dc.subjectcopper
dc.subjectzinc
dc.subjectPagrosomus major
dc.subjectCAT
dc.subjectGPT
dc.subjectpepsin.
dc.title铜和锌离子对真鲷幼鱼组织酶活性的影响
dc.title.alternativeEffects of Copper and Zinc Ions on Activities of Enzymes inTissues of Red Sea Bream Pagrosomus major Juvenile
dc.typeArticle


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record