Morphological and molecular characterization of Ptychodiscus noctiluca revealed the polyphyletic nature of the order Ptychodiscales (Dinophyceae)
Gomez, Fernando; Qiu, Dajun; Dodge, John D.; Lopes, Rubens M.; Lin, Senjie; Gomez, F (reprint author), Carmen Campos Panisse 3, E-11500 El Puerto De Santa Maria, Spain.
2016
发表期刊JOURNAL OF PHYCOLOGY
卷号52期号:5页码:793-805
摘要The planktonic dinoflagellate Ptychodiscus noctiluca combined distinctive morphological features such as a disk-shaped anteroposteriorly compressed cell body and an apical carina, together with a flexible and tough cell covering, suggesting intermediate characteristics between thecate and naked dinoflagellates. Ptychodiscusnoctiluca was examined by light, epifluorescence, and scanning electron microscopy from specimens collected in the Mediterranean Sea and the North and South Atlantic Ocean. Ptychodiscusnoctiluca showed a straight apical groove that bisected the carina, a cell covering with a polygonal surface reticulum, nucleus without capsule, sulcal intrusion in the episome, sulcal ventral flange, and yellowish-green chloroplasts that are shared characters with Brachidinium/Karenia. The cell division was the typical binary fission of gymnodinioid dinoflagellates, although exceptionally in an oblique transversal axis. We examined the intraspecific variability during incubation experiments. In the fattened cells, termed as Ptychodiscus carinatus, chloroplasts transformed into dark granules, and the cell acquired the swollen and smaller stage, termed as P.inflatus. Ptychodiscus carinatus, P.inflatus, and Diplocystis antarctica are synonyms of P.noctiluca. Molecular phylogeny based on the SSU rDNA sequence revealed that Ptychodiscus branched within the short-branching dinokaryotic dinoflagellates as an independent lineage with affinity to Brachidinium/Karenia and Karlodinium/Takayama in a generally poorly resolved clade. Our results indicated that the order Ptychodiscales, established for unarmored dinoflagellates with a strongly developed pellicle, has artificially grouped thecate dinoflagellates (Kolkwitziella, Herdmania), naked dinoflagellates with thick cell covering (Balechina, Cucumeridinium) andother insufficiently known unarmored generawith typical cell coverings (Brachidinium, Ceratoperidinium).
部门归属[Gomez, Fernando] Carmen Campos Panisse 3, E-11500 El Puerto De Santa Maria, Spain; [Qiu, Dajun] Chinese Acad Sci, CAS Key Lab Trop Marine Bioresources & Ecol, South China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China; [Dodge, John D.] Old Farmhouse,Ashton Hill, Evesham, England; [Lopes, Rubens M.] Univ Sao Paulo, Lab Plankton Syst, Oceanog Inst, Cidade Univ, BR-05508900 Sao Paulo, Brazil; [Lin, Senjie] Univ Connecticut, Dept Marine Sci, Groton, CT 06340 USA ; LMB
关键词Alveolates Amphiesma Atlantic Ocean Dinophyta Gymnodiniales Mediterranean Sea Peridiniales Phytoplankton Ptychodiscacean Thick Pellicle Unarmored Dinoflagellata
学科领域Plant Sciences ; Marine & Freshwater Biology
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15280
专题中科院海洋生物资源可持续利用重点实验室
通讯作者Gomez, F (reprint author), Carmen Campos Panisse 3, E-11500 El Puerto De Santa Maria, Spain.
推荐引用方式
GB/T 7714
Gomez, Fernando,Qiu, Dajun,Dodge, John D.,et al. Morphological and molecular characterization of Ptychodiscus noctiluca revealed the polyphyletic nature of the order Ptychodiscales (Dinophyceae)[J]. JOURNAL OF PHYCOLOGY,2016,52(5):793-805.
APA Gomez, Fernando,Qiu, Dajun,Dodge, John D.,Lopes, Rubens M.,Lin, Senjie,&Gomez, F .(2016).Morphological and molecular characterization of Ptychodiscus noctiluca revealed the polyphyletic nature of the order Ptychodiscales (Dinophyceae).JOURNAL OF PHYCOLOGY,52(5),793-805.
MLA Gomez, Fernando,et al."Morphological and molecular characterization of Ptychodiscus noctiluca revealed the polyphyletic nature of the order Ptychodiscales (Dinophyceae)".JOURNAL OF PHYCOLOGY 52.5(2016):793-805.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Morphological and mo(3106KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。