title: Parabirojimia multinucleata spec. nov. and Anteholosticha scutellum (Cohn, 1866) Berger, 2003, marine ciliates (Ciliophora, Hypotrichida) from tropical waters in southern China, with notes on their small-subunit rRNA gene sequences.
abstract: Few studies using modern methods have been carried out on ciliated protozoa in tropical marine waters. In the present work, two hypotrichs, Parabirojimia multinucleata spec. nov. and Anteholosticha scutellum (Cohn, 1866) Berger, 2003, collected from Daya Bay in southern China, were investigated morphologically. P. multinucleata is distinguished by the following combination of characters: slender body, without a snout-like protrusion in the frontal field, and about 50 macronuclear nodules. The poorly known A. scutellum has never been investigated using modern methods; hence, a redescription is needed. During the present study, observations of specimens in vivo and following protargol impregnation revealed new information concerning structures such as the cortical granules and the infraciliature. A redescription and improved diagnosis are supplied based on the China population. The small-subunit (SSU) rRNA gene was sequenced for both organisms and comparisons with those of similar congeners clearly support the findings based on morphological studies.
authors: Laboratory of Protozoology, Ocean University of China, Qingdao 266003, PR China.
authors: Xiangrui
authors: X
authors: Chen
authors: Laboratory of Protozoology, Ocean University of China, Qingdao 266003, PR China.
authors: Shan
authors: S
authors: Gao
authors: Laboratory of Protozoology, Ocean University of China, Qingdao 266003, PR China.
authors: Weibo
authors: W
authors: Song
authors: Zoology Department, King Saud University, Riyadh 11451, Saudi Arabia.
authors: Khaled A S
authors: KAS
authors: Al-Rasheid
authors: Department of Zoology, Natural History Museum, London SW7 5BD, UK.
authors: Alan
authors: A
authors: Warren
authors: Laboratory of Protozoology, College of Life Science, South China Normal University, Guangzhou 510631, PR China.|Department of Zoology, Natural History Museum, London SW7 5BD, UK.
authors: Jun
authors: J
authors: Gong
authors: Laboratory of Protozoology, College of Life Science, South China Normal University, Guangzhou 510631, PR China.
authors: Xiaofeng
authors: X
authors: Lin
mesh_terms: D001483:Base Sequence; D002681:China; D016798:Ciliophora / Q000145:classification / Q000166:cytology / Q000235:genetics* / Q000302:isolation & purification*; D016054:DNA, Protozoan / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D008969:Molecular Sequence Data; D010802:Phylogeny; D012335:RNA, Ribosomal / Q000235:genetics; D054679:Ribosome Subunits, Small / Q000235:genetics*; D012623:Seawater / Q000469:parasitology*; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA
chemical_list: D016054:DNA, Protozoan; D004275:DNA, Ribosomal; D012335:RNA, Ribosomal