Taxonomy and Phylogeny of a New Marine Planktonic Ciliate, Strombidium pseudorapulum sp. n. (Protozoa, Ciliophora, Oligotrichia)  

作　　者：LI Fenfen HUANG Yaoyao YU Ying LIU Weiwei LIN Xiaofeng 

机构地区：[1]Laboratory of Protozoology,Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring,College of Life Science,South China Normal University,Guangzhou 510631,China [2]Key Laboratory of Tropical Marine Bio-Resources and Ecology,South China Sea Institute of Oceanology,Chinese Academy of Science,Guangzhou,510301,China [3]Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou,Guangzhou,511458,China [4]Innovation Academy of South China Sea Ecology and Environmental Engineering,Chinese Academy of Sciences,Guangzhou 510301,China [5]Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem,College of the Environment and Ecology,Xiamen University,Xiamen 361005,China

出　　处：《Journal of Ocean University of China》2020年第4期954-960,共7页中国海洋大学学报（英文版）

基　　金：the National Natural Science Foundation of China(No.31761133001);the Guangdong MEPP Fund(No.GDOE(2019)A23);the Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)(No.GML2019ZD0405);Innovation Academy of South China Sea Ecology and Environmental Engineering,Chinese Academy of Sciences(No.ISEE 2018PY01).

摘　　要：As one of the main groups of marine planktonic protozoa,oligotrich ciliates have shown a high biodiversity.Recently,a new aloricate oligotrich ciliate,Strombidium pseudorapulum sp.n.was isolated from coastal waters of southeast China.The living morphology and infraciliature of this species were studied using live cell observation and protargol impregnation.Strombidium pseudorapulum sp.n.differs from its congeners by having a radish-like body with a bumped anterior end and an elongated tail-like posterior end,possessing a red‘eyespot’in apical protrusion of cell,adoral zone of membranelles composed of 12–16 collar and 9–12 buccal membranelles,one spindle-shaped macronucleus,girdle kinety in anterior 2/5 of cell with 45–60 densely spaced dikinetids,and ventral kinety occupying about the posterior 1/3 of the cell with 16–19 dikinetids.Strombidium pseudorapulum sp.n.clusters together with those species having‘eyespot’in apical protrusion in the phylogenetic tree based on the small subunit rRNA gene sequence.It is a sister species of S.cuneiforme with 31 unmatched nucleotides between their SSU rRNA gene sequences.

关 键 词：aloricate oligotrichs morphology new species SSU rRNA gene sequence 

分 类 号：Q959.11[生物学—动物学]