| 盐度突变对青蛤(Cyclinasinensis)鳃Na~+/K~+-ATPase活性的影响 |
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| 引用本文： | 林听听,来琦芳,陆建学,么宗利,李子牛,王慧,周凯.盐度突变对青蛤(Cyclinasinensis)鳃Na~+/K~+-ATPase活性的影响[J].广东海洋大学学报,2012(1):54-58. |
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| 作者姓名： | 林听听 来琦芳 陆建学 么宗利 李子牛 王慧 周凯 |
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| 作者单位： | 中国水产科学研究院东海水产研究所中国水产科学研究院盐碱地渔业工程技术研究中心 |
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| 基金项目： | 上海市科委技术标准专项(10DZ0503100) |
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| 摘 要： | 研究了盐度23下青蛤(Cyclina sinensis)鳃、斧足、外套膜和内脏团中Na+/K+-ATPase的活性差异,并以活性高的鳃组织为对象,对青蛤实施了低盐(23→16)和高盐(23→36)突变的胁迫,监测了鳃组织中Na+/K+-ATPase活性的动态变化。结果表明,盐度23下青蛤鳃组织中Na+/K+-ATPase的活性显著高于其他组织;在盐度突降胁迫下,鳃组织中Na+/K+-ATPase的活性于前16 d逐渐升高,第17d起显著升高(p<0.05),第18 d达到峰值,于第20 d回落,但仍高于起始水平;在盐度骤升胁迫下,鳃组织中Na+/K+-ATPase的活性于前13d逐渐降低,第14 d起显著降低(p<0.05),于第15 d达到最低值,继而回升至平稳水平,但仍低于起始水平。青蛤不同盐度胁迫下其鳃组织中Na+/K+-ATPase活性的响应方式不同,低盐时活性增加,而高盐时活性下降;此外,青蛤在盐度胁迫下对自身渗透压的调节则需较长时间。
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| 关 键 词： | 青蛤 鳃 盐度突变 Na+/K+-ATPase |
Effects of Abrupt Variations in Salinity on the Na~+/K~+-Atpase Activity in Gills of Cyclina sinensis |
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| LIN Ting-ting,LAI Qi-fang,YAO Zong-li,LU Jian-xue,LI Zi-niu,WANG Hui,ZHOU Kai.Effects of Abrupt Variations in Salinity on the Na~+/K~+-Atpase Activity in Gills of Cyclina sinensis[J].Journal of Zhanjiang Ocean University,2012(1):54-58. |
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| Authors: | LIN Ting-ting LAI Qi-fang YAO Zong-li LU Jian-xue LI Zi-niu WANG Hui ZHOU Kai |
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| Institution: | (East China Sea Fisheries Research Institute,Engineering Research Center for Saline-alkali Water Fisheries,Chinese Academy of Fishery Sciences,Shanghai 200090,China) |
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| Abstract: | The difference of Na+/K+-ATPase activity among tissues(gill,foot,mantle and viscera) in Cyclina sinensis at the normal salinity 23 was investigated.Afterwards,the dynamic changes of Na+/K+-ATPase activity in the resulting tissue which had a high value during the normal salinity was focused and detected when C.sinensis suffered an abrupt decrease(from 23 to 16) and increase(from 23 to 36) in salinity.The results showed that Na+/K+-ATPase activity in gills was significantly higher than other three tissues when C.sinensis exposed at normal salinity.After an abrupt decrease in salinity,Na+/K+-ATPase activity in gills didn’t present a significant difference in the first 16 days(p>0.05),and it began to increase significantly from the 17th day to the 19th day(p<0.05),and returned to the initial value at the 20th day.While stimulated by an acute elevation of salinity,no significant diversity of Na+/K+-ATPase activity was observed in the first 13 days(p>0.05),and it began to decrease at the 14th day,and reached the nadir at the 15th day.Thereafter,it gradually increased to the initial value in the following time.In conclusion,the response way of Na+/ K+-ATPase activity in the gills of C.sinensis which was under different salinity stress was different,showing increased activity for the low salinity stress,and decreased activity for the high salinity stress.Additionally,and it took C.sinensis a long time to balance its plasma osmolality after a salinity stress. |
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| Keywords: | Cyclina sinensis gills salinity abrupt changes Na+/ K+-ATPase |
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