首页 | 本学科首页   官方微博 | 高级检索  
   检索      


Habitat-specific adaptation of immune responses of stickleback (Gasterosteus aculeatus) lake and river ecotypes
Authors:Scharsack Jörn P  Kalbe Martin  Harrod Chris  Rauch Gisep
Institution:1.Department of Evolutionary Ecology, Max-Planck-Institute for Limnology, August-Thienemann-Strasse 2, 24306 Plön, Germany;2.Department of Evolutionary Genetics, Max-Planck-Institute for Limnology, August-Thienemann-Strasse 2, 24306 Plön, Germany
Abstract:Freshwater populations of three-spined sticklebacks (Gasterosteus aculeatus) in northern Germany are found as distinct lake and river ecotypes. Adaptation to habitat-specific parasites might influence immune capabilities of stickleback ecotypes. Here, naive laboratory-bred sticklebacks from lake and river populations were exposed reciprocally to parasite environments in a lake and a river habitat. Sticklebacks exposed to lake conditions were infected with higher numbers of parasite species when compared with the river. River sticklebacks in the lake had higher parasite loads than lake sticklebacks in the same habitat. Respiratory burst, granulocyte counts and lymphocyte proliferation of head kidney leucocytes were increased in river sticklebacks exposed to lake when compared with river conditions. Although river sticklebacks exposed to lake conditions showed elevated activation of their immune system, parasites could not be diminished as effectively as by lake sticklebacks in their native habitat. River sticklebacks seem to have reduced their immune-competence potential due to lower parasite diversity in rivers.
Keywords:ecological immunology  Gasterosteus aculeatus  ecotypes  parasites  immune response  specific growth rate
本文献已被 PubMed 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号