Chromera velia is Endosymbiotic in Larvae of the Reef Corals Acropora digitifera and A. tenuis
Chromera velia is Endosymbiotic in Larvae of the Reef Corals Acropora digitifera and A. tenuis
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DOI：
10.1016/j.protis.2012.08.003
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发表时间：
2013-03-01
期刊：
影响因子：
2.5
通讯作者：
Marquis, Christopher P.
中科院分区：
文献类型：
--
作者：
Cumbo, Vivian R.;Baird, Andrew H.;Marquis, Christopher P.
硬珊瑚与一系列生物共生，包括甲藻属，共生藻属，一种互惠共生的协会。然而，并非所有的共生体都对宿主有益。特别是，覆盖在珊瑚上皮上的微生物粘液层中的许多有机体可以引起疾病和死亡。与珊瑚共生的其他生物包括最近描述的Chromera velia，这是一种与共生藻有共同祖先的顶复门寄生虫的光合亲戚。探讨C. velia和珊瑚中首次分离出C. velia，然后暴露出远共生的鹿角珊瑚和A. tenuis幼虫到这些培养物中。三个C分离出维利亚培养物，并在暴露于所有三个克隆的这两个物种的珊瑚幼虫中建立了共生关系。组织学证实C.膜位于幼虫的内、外胚层。这些结果表明C. velia具有与珊瑚幼虫内共生的潜力。(c)2012 Elsevier GmbH. All rights reserved.
Scleractinian corals occur in symbiosis with a range of organisms including the dinoflagellate alga, Symbiodinium, an association that is mutualistic. However, not all symbionts benefit the host. In particular, many organisms within the microbial mucus layer that covers the coral epithelium can cause disease and death. Other organisms in symbiosis with corals include the recently described Chromera velia, a photosynthetic relative of the apicomplexan parasites that shares a common ancestor with Symbiodinium. To explore the nature of the association between C. velia and corals we first isolated C. velia from the coral Montipora digitata and then exposed aposymbiotic Acropora digitifera and A. tenuis larvae to these cultures. Three C. velia cultures were isolated, and symbiosis was established in coral larvae of both these species exposed to all three clones. Histology verified that C. velia was located in the larval endoderm and ectoderm. These results indicate that C. velia has the potential to be endosymbiotic with coral larvae. (c) 2012 Elsevier GmbH. All rights reserved.