...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine ecology progress series >Early uptake of specific symbionts enhances the post-settlement survival of Acropora corals
【24h】

Early uptake of specific symbionts enhances the post-settlement survival of Acropora corals

机译：尽早摄取特定的共生体可提高棘足珊瑚的沉降后存活率

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

For corals that establish symbioses with dinoflagellate Symbiodinium spp. at the larval stage or later through horizontal transmission, the ecological significance of the early uptake of algal symbionts remains unknown. It has been hypothesized that early uptake of symbionts is an advantage for long-distance dispersal. Here, we tested the hypothesis that early acquisition of symbionts enhances post-settlement survival. We used a cultured strain of clade A Symbiodinium that was isolated from wild Acropora spat as the algal symbiont. Symbiotic and aposymbiotic Acropora larvae were prepared in the laboratory and settled on experimental plates in the field. The survival of settlers was monitored for 15 mo. Our results showed that more larval-stage settlers harbouring symbionts survived than those without, even when there was no difference in the initial density of settled larvae. We analysed the Symbiodinium clades harboured by the corals at 1 mo after settlement, and found that clade A was less abundant in the corals that grew from aposymbiotic larvae than in those that developed from symbiotic larvae. There was also a marked difference in coral survival between aposymbiotic and symbiotic larvae over this period. The higher survival rate of 'early uptake' corals was more pronounced on shaded plates. These results suggest that the early uptake of specific symbionts enhances post-settlement survival in dark places such as reef crevices, which are sites commonly settled by coral larvae.
机译：对于与鞭毛藻共生菌共生的珊瑚。在幼体阶段或以后通过水平传播，早期吸收藻类共生体的生态意义仍然未知。据推测，尽早摄取共生体是长距离传播的一个优势。在这里，我们测试了这样的假说，即共生体的早期获取可提高结算后的生存率。我们使用培养的进化枝A共生菌系作为藻类共生体从野生棘孢菌的叶片中分离出来。在实验室中准备了共生和非共生的棘足类Acropora幼虫，并将其安放在田间的实验板上。监测定居者的存活15个月。我们的结果表明，即使没有初始定居幼虫密度差异，携带共生体的幼虫期定居者比没有共生体的定居者要多。我们分析了定居后1个月时珊瑚所掩盖的共生生物进化枝，发现从共生幼虫生长的珊瑚中，进化枝A的丰富性要比从共生幼虫发育的珊瑚少。在这段时期内，共生和共生幼虫的珊瑚存活率也存在显着差异。在阴影板上，“早期摄取”珊瑚的较高存活率更加明显。这些结果表明，在暗处（例如珊瑚礁缝隙通常是由珊瑚幼虫定居的地方），尽早摄取特定的共生体可以提高沉降后的存活率。

著录项

  • 来源
    《Marine ecology progress series》 |2013年第4期|149-158|共10页
  • 作者

    Go Suzuki; Hiroshi Yamashita; Sayaka Kai; Takeshi Hayashibara; Kiyoshi Suzuki; Yukihiro Iehisa; Wataru Okada; Wataru Ando; Takeshi Komori;

  • 作者单位

    Ishigaki Tropical Station, Seikai National Fisheries Research Institute, 148-446 Fukai-Ota, Ishigaki, Okinawa 907-0451, Japan;

    Ishigaki Tropical Station, Seikai National Fisheries Research Institute, 148-446 Fukai-Ota, Ishigaki, Okinawa 907-0451, Japan;

    Ishigaki Tropical Station, Seikai National Fisheries Research Institute, 148-446 Fukai-Ota, Ishigaki, Okinawa 907-0451, Japan;

    Ishigaki Tropical Station, Seikai National Fisheries Research Institute, 148-446 Fukai-Ota, Ishigaki, Okinawa 907-0451, Japan;

    Engineering Division, Daikure Co. Ltd., 1-24 Tsukiji-cho, Kure, Hiroshima 737-8513, Japan;

    Engineering Division, Daikure Co. Ltd., 1-24 Tsukiji-cho, Kure, Hiroshima 737-8513, Japan;

    Coastal Environmental Design Division, ECOH Co. Ltd., 1-10-5 Tahara, Naha, Okinawa 901-0156, Japan;

    Fisheries Infrastructure Development Center, 2-14-5 Tukiji, Chuo-ku, Tokyo 104-0045, Japan;

    Fisheries Agency, Ministry of Agriculture, Forestry and Fisheries, 1-2-1 Kasumugaseki, Chiyoda-ku, Tokyo 100-8907, Japan;

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

    Coral-algal symbiosis; Horizontal transmission; Self-recruitment; Symbiodinium; Coral restoration;

    机译：珊瑚-藻共生;水平传输;自我招募;共生素;珊瑚修复;

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