...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of Experimental Biology >Rotational behaviour of encapsulated pond snail embryos in diverse natural environments
【24h】

Rotational behaviour of encapsulated pond snail embryos in diverse natural environments

机译：包囊的池塘蜗牛胚胎在不同自然环境中的旋转行为

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

Encapsulated freshwater pond snail embryos display a cilia-driven rotation behaviour that is stimulated by artificially induced hypoxia. Previous studies have suggested that the mixing effect of this behaviour causes enhanced oxygen delivery to embryos within their egg capsules. Despite extensive laboratory-based studies describing this behaviour, it is unclear how this behaviour is used to cope with changes in oxygen concentration and other environmental factors in natural water bodies. We made field measurements of embryo rotation rates in laboratory-reared Helisoma trivolvis embryos placed in ponds of different trophic levels that ranged geographically from the southern Alberta prairie to the Rocky Mountains. Abiotic factors including temperature, pH, conductivity and water oxygen concentration were measured to understand how embryonic rotation is influenced by environmental conditions. Results showed that H. trivolvis embryos exhibit differences in rotational behaviour depending on the environmental conditions. Temperature and oxygen concentration were the primary factors significantly affecting rotation rates. The effect of oxygen concentration on rotation rates was not as widespread as observed under laboratory conditions, probably because the measured oxygen concentrations were above the range that influences embryonic rotation in the laboratory. The rotational behaviour of laboratory-reared Lymnaea stagnalis provided confirmation that embryos of other encapsulated pulmonates exhibit a similar rotational response in natural environments. These results suggest that embryo rotation is influenced by a complex interplay of environmental factors.
机译：封装的淡水池塘蜗牛胚胎表现出由人为诱导的缺氧刺激的纤毛驱动的旋转行为。先前的研究表明，这种行为的混合效应导致氧气向卵囊内的胚胎的递送增加。尽管基于实验室的大量研究描述了这种行为，但尚不清楚如何使用这种行为来应对天然水体中氧气浓度和其他环境因素的变化。我们对放置在营养级别不同的池塘中的实验室饲养的Helisoma trivolvis胚胎的胚胎旋转速率进行了现场测量，这些池塘的地理分布范围从南部艾伯塔省大草原到落基山脉。测量了包括温度，pH，电导率和水氧浓度在内的非生物因素，以了解环境条件如何影响胚胎的旋转。结果表明，取决于环境条件，Trivolvis胚胎的旋转行为存在差异。温度和氧气浓度是显着影响转速的主要因素。氧气浓度对旋转速率的影响没有在实验室条件下观察到的广泛，可能是因为测得的氧气浓度高于影响实验室胚胎旋转的范围。实验室饲养的狼毒（Lymnaea stagnalis）的旋转行为证实了其他封装的肺酸盐的胚胎在自然环境中表现出相似的旋转反应。这些结果表明，胚胎旋转受到环境因素复杂相互作用的影响。

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