...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine biology >The effects of symbiotic state and nutrient availability on the cnidom in the model sea anemone, Exaiptasia diaphana
【24h】

The effects of symbiotic state and nutrient availability on the cnidom in the model sea anemone, Exaiptasia diaphana

机译：共生状态和养分利用率对模型海葵Exaiptasia diaphana的成鱼的影响

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

The symbiotic relationship between corals and zooxanthellae allows coral reefs to thrive. The symbiont translocates nutrients which it derives from photosynthesis to the coral, which then uses the nutrients for its growth, reproduction, metabolism, and the maintenance of structural integrity. The majority of the coral's nutritional input is lost when the coral loses its symbionts in a bleaching event. However, the importance of the symbiotic state to the cnidom of corals remains unknown. The facultative symbiotic anemone Exaiptasia diaphana, common name Aiptasia, is widely used as a model organism to understand the symbiotic relationship between coral and their symbionts. We experimentally rendered Aiptasia aposymbiotic using a menthol treatment. We exposed symbiotic anemones and aposymbiotic anemones to differing feeding regimes to investigate the impact of nutritional input on the cnidom. Symbiotic state and feeding regime significantly affected the: ratio of cnida types in tentacles; the mean volume of cnidae; and the mean density of cnidae in Aiptasia. When Aiptasia becomes aposymbiotic, its tentacles possess more spirocysts and fewer penetrant-type nematocysts. Furthermore, cnidae in aposymbiotic anemones tended to be smaller than in symbiotic anemones. In addition, the ratio of cnida types and the mean volume of cnidae were significantly affected by nutrient availability in aposymbiotic anemones. When nutrients were exogenously supplied, the cnidom of aposymbiotic anemones became comparable to that of symbiotic anemones. Moreover, the mean size of cnidae significantly increased. Thus, the cnidom is a dynamic entity that is significantly influenced by the symbiotic state of the anemone and/or the availability of nutrients.
机译：珊瑚和虫黄藻之间的共生关系使珊瑚礁得以繁衍。共生体将从光合作用中获取的养分转移到珊瑚上，然后珊瑚利用养分进行生长，繁殖，代谢和维持结构完整性。当珊瑚在漂白事件中丧失共生能力时，大部分的营养输入就会丧失。但是，共生状态对珊瑚的重要性仍然未知。兼性共生海葵Exaiptasia diaphana（俗称Aiptasia）被广泛用作模型生物，以了解珊瑚与其共生体之间的共生关系。我们使用薄荷醇治疗性地使Aiptasia益生菌共生。我们将共生海葵和非共生海葵暴露于不同的喂养方式下，以研究营养输入对网眼的影响。共生状态和喂养方式显着影响触角中虫类型的比例；蝇科的平均数量；和Aiptasia的of科的平均密度。当Aiptasia变成共生菌时，其触角拥有更多的螺旋孢子囊和更少的渗透型线虫囊。此外，在共生共生海葵中的科趋向于比在共生共生海葵中的科更小。此外，在共生共生的海葵中，养分利用率显着影响了虫类型的比例和虫的平均体积。当从外部提供营养时，共生海葵的生命就可以与共生海葵相媲美。此外，科的平均大小显着增加。因此，无脊椎动物是一个动态实体，受到海葵的共生状态和/或养分利用率的影响很大。

著录项

  • 来源
    《Marine biology》 |2019年第3期|31.1-31.10|共10页
  • 作者

    Gundlach Katrina A.; Watson Glen M.;

  • 作者单位

    Univ Hawaii, Kewalo Marine Lab, Honolulu, HI 96813 USA;

    Univ Louisiana, Dept Biol, Lafayette, LA 70504 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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