The search for the missing link: a relic plastid in Perkinsus?
The search for the missing link: a relic plastid in Perkinsus?
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DOI：
10.1016/j.ijpara.2011.07.008
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发表时间：
2011-10
影响因子：
4
通讯作者：
Vasta GR
中科院分区：
文献类型：
--
作者：
Fernández Robledo JA;Caler E;Matsuzaki M;Keeling PJ;Shanmugam D;Roos DS;Vasta GR
Perkinsus marinus（Perkinsozoa门）是一种原生动物寄生虫，在美国破坏了天然和养殖的牡蛎种群，严重影响了贝类产业和河口环境。该门的另外两个属，Parvilucifera和Rastrimonas，是微真核生物的寄生虫。Perkinsozoa占据甲藻分支基部的关键位置，靠近其与顶复门的分歧，顶复门是一个包括寄生原生生物的分支，许多具有残体。因此，作为一个分类群，也已经进化到寄生，帕金索动物吸引了生物学家的注意力，有兴趣在这个细胞器的进化，无论是在其超微结构和保存，损失或转移其基因。最近的文献回顾显示，越来越多的证据支持在P. marinus的遗迹质体的存在，包括存在的多膜结构，特征代谢途径和蛋白质与一个二分的N-末端延伸。此外，这些研究结果提出了有趣的问题，关于潜在的功能和独特的适应假定的质体和/或质体基因在帕金索动物。在这篇综述中，我们分析了上述证据，并评估了解决这些问题的潜在未来方向和预期效益。鉴于帕金虫属的分子/遗传资源和方法工具箱迅速扩大，这些生物应该补充目前建立的模型，研究质体进化内的Chromalveolata。
Perkinsus marinus (Phylum Perkinsozoa) is a protozoan parasite that has devastated natural and farmed oyster populations in the USA, significantly affecting the shellfish industry and the estuarine environment. The other two genera in the phylum, Parvilucifera and Rastrimonas, are parasites of microeukaryotes. The Perkinsozoa occupies a key position at the base of the dinoflagellate branch, close to its divergence from the Apicomplexa, a clade that includes parasitic protista, many harbouring a relic plastid. Thus, as a taxon that has also evolved toward parasitism, the Perkinsozoa has attracted the attention of biologists interested in the evolution of this organelle, both in its ultrastructure and the conservation, loss or transfer of its genes. A review of the recent literature reveals mounting evidence in support of the presence of a relic plastid in P. marinus, including the presence of multimembrane structures, characteristic metabolic pathways and proteins with a bipartite N-terminal extension. Further, these findings raise intriguing questions regarding the potential functions and unique adaptation of the putative plastid and/or plastid genes in the Perkinsozoa. In this review we analyse the above-mentioned evidence and evaluate the potential future directions and expected benefits of addressing such questions. Given the rapidly expanding molecular/genetic resources and methodological toolbox for Perkinsus spp., these organisms should complement the currently established models for investigating plastid evolution within the Chromalveolata.
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影响因子：
1.4
作者：
Casas, SM;Grau, A;Villalba, A
通讯作者：
Villalba, A
DOI：
10.1073/pnas.0711067105
发表时间：
2008-02-19
影响因子：
11.1
作者：
Elliott, David A.;McIntosh, Michael T.;Joiner, Keith A.
通讯作者：
Joiner, Keith A.
影响因子：
2.2
作者：
Coss, CA;Robledo, JAF;Vasta, GR
通讯作者：
Vasta, GR
影响因子：
1.5
作者：
Chu, FLE;Lund, E;Harvey, E
通讯作者：
Harvey, E
影响因子：
56.9
作者：
Abrahamsen, MS;Templeton, TJ;Kapur, V
通讯作者：
Kapur, V