...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Parasitology >Manipulation of the Vertebrate Host's Testosterone Does Not Affect Gametocyte Sex Ratio of a Malaria Parasite
【24h】

Manipulation of the Vertebrate Host's Testosterone Does Not Affect Gametocyte Sex Ratio of a Malaria Parasite

机译：脊椎动物宿主的睾丸激素的操纵不会影响疟原虫的配子体性别比。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Gametocyte sex ratio of the malaria parasite Plasmodium mexicanum is variable in its host, the western fence lizard (Sceloporus occidentalis), both among infections and within infections over time. We sought to determine the effect of host physiological quality on the gametocyte sex ratio in experimentally induced infections of P. mexicanum. Adult male lizards were assigned to 4 treatment groups: castrated, castrated + testosterone implant, sham implant, and unmanipulated control. No significant difference in gametocyte sex ratio was found among the 4 treatment groups. Two other analyses were performed. A surgery stress analysis compared infection sex ratio of castrated, castrated + testosterone implant, and sham implant groups with the unmanipulated control group. A testosterone alteration analysis compared infection sex ratio of the castrated and castrated + testosterone implant groups with the sham implant and unmanipulated control groups. Again, no significant difference was observed for these 2 comparisons. Thus, physiological changes expected for experimentally induced variation in host testosterone and the stress of surgery were not associated with any change in the gametocyte sex ratio. Also, the experiment suggests testosterone is not a cue for shaping the sex ratio of gametocytes in P. mexicanum. These results are related to the evolutionary theory of sex ratios as applied to malaria parasites.
机译：疟原虫的疟原虫疟原虫的配子体性别比在其宿主西栅栏蜥蜴（Sceloporus occidentalis）中随感染时间和感染时间变化。我们试图确定宿主生理质量对实验诱导的墨西哥疟原虫感染配子体性别比的影响。将成年雄性蜥蜴分为4个治疗组：去势，去势+睾丸激素植入物，假植入物和未控制的对照组。在4个治疗组之间，配子体性别比没有显着差异。进行了另外两个分析。手术压力分析比较了去势组，去势+睾丸植入物和假植入物组与未控制对照组的感染性别比。睾丸激素改变分析比较了去势和去势+睾丸植入物组与假植入物和未操纵对照组的感染性别比。同样，这两个比较未观察到显着差异。因此，预期通过实验诱发宿主睾丸激素变化的生理变化和手术压力与配子细胞性别比的任何变化均无关。而且，实验表明睾丸激素不是塑造墨西哥对虾配子细胞性别比的线索。这些结果与应用于疟原虫的性别比进化理论有关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号