Cite this paper:
CAI Xinglong, CHEN Ying, ZHAO Xiaolu, GAO Jing, Saleh A. AL-FARRAJ, YU Lijie, PAN Xuming, QIU Zijian. Molecular phylogeny and ultrastructure of a new population of Urostyla grandis (Ciliophora, Hypotrichida) from Harbin, China[J]. HaiyangYuHuZhao, 2019, 37(1): 256-265

Molecular phylogeny and ultrastructure of a new population of Urostyla grandis (Ciliophora, Hypotrichida) from Harbin, China

CAI Xinglong1, CHEN Ying1, ZHAO Xiaolu2, GAO Jing1, Saleh A. AL-FARRAJ3, YU Lijie1, PAN Xuming1, QIU Zijian1
1 Laboratory of Protozoology, Harbin Normal University, Harbin 150025, China;
2 Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China;
3 Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
A new population of Urostyla grandis, collected from a freshwater pond of northeastern China was investigated by living observation, silver impregnation, and molecular phylogeny based on small subunit ribosomal rRNA (SSU rRNA). Besides, its ultrastructural characteristics were investigated carefully by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) methods. Complementary descriptions of some inner ultrastructures were provided and some new organelles were also found. Especially, the oral inner microtubule system was illustrated by SEM and TEM for the first time and a new type extrusome was reported. These results may supply complement taxonomic data and ingestion mechanism on ciliates in genus Urostyla.
Key words:    Urostyla grandis|phylogeny|ultrastructure|new population   
Received: 2017-10-03   Revised: 2017-12-29
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Articles by CAI Xinglong
Articles by CHEN Ying
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Articles by PAN Xuming
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