Updating the ciliate genus Chlamydodon Ehrenberg, 1835, with redescriptions of three species (Ciliophora: Cyrtophorida)
Updating the ciliate genus Chlamydodon Ehrenberg, 1835, with redescriptions of three species (Ciliophora: Cyrtophorida)
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发表时间：
2005
影响因子：
0.5
通讯作者：
J. Gong;Weibo Song;A. Warren
中科院分区：
文献类型：
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作者：
J. Gong;Weibo Song;A. Warren
采用原targol浸渍法和活体研究方法，对青岛近海3种海洋纤毛虫Chlamydodon obliquus Kahl（1931）、C. mnemosyne Ehrenberg（1835）和C. triquetrus （Muller, 1786）的形态和基础结构进行了研究。根据前人和现在的研究，更新了衣原体属的定义：在体场外围有横纹带的chilodonellids；最右旋向背顶延伸并向左弯曲，形成明显的左旋缝线；一个口前活动和两个口周活动斜排列；具有松散间隔动体的赤道片段；几个或多个终端碎片。对鲜为人知的物种C. obliquus进行了修正诊断：体型较大的Chlamydodon，体长约120 ~ 180 × 50 ~ 120 μm，体形椭球~三角形；横纹带连续，其最大部分沿细胞边缘，前区穿过背表面；37个左右，4个左右，27个左右；线虫杆11-14根；背面约有7个终末碎片；约10个不规则分布的可收缩液泡；海洋栖息地。同时也提供了C. mnemosyne和C. triquetrus的改进诊断。同系物比较表明，C. exocellatus Ozaki et Yagiu（1941）和C. kasymovi Aliev（1987）分别是C. obliquus和C. triquetrus的同义词；C. pedarius Kaneda（1953）和C. apsheronica Aliev（1987）应与模式种C. mnemosyne同属。根据形态学和基础设施资料，提供了5种衣原体物种的更新检索表。
The morphology and infraciliature of three marine cyrtophorid ciliates, Chlamydodon obliquus Kahl, 1931, C. mnemosyne Ehrenberg, 1835 and C. triquetrus (Muller, 1786), collected from coastal waters near Qingdao (Tsingtao), China, were investigated in vivo and using protargol impregnation. Based on the previous and current studies, the definition for the genus Chlamydodon is updated: chilodonellids with a cross-striated band around the periphery of the somatic field; rightmost kineties extending dorso-apically and bending to the left, making a conspicuous suture with left kineties; one preoral and two circumoral kineties obliquely arranged; equatorial fragment with loosely spaced kinetosomes; several to many terminal fragments. A revised diagnosis for the little known species C. obliquus is suggested: large-sized Chlamydodon, about 120-180 x 50-120 μm in vivo, body ellipsoid to triangular in outline; cross-striated band continuous, largest portion of which runs along cell margin, anterior region crossing onto dorsal surface; about 37 right, 4 postoral and 27 left kineties; 11-14 nematodesmal rods; about 7 terminal fragments on dorsal side; ca. 10 contractile vacuoles irregularly distributed; marine habitat. Improved diagnoses for C. mnemosyne and C. triquetrus are also supplied. Comparisons between congeners demonstrate that C. exocellatus Ozaki et Yagiu, 1941 and C. kasymovi Aliev, 1987 are synonyms of C. obliquus and C. triquetrus, respectively; C. pedarius Kaneda, 1953 and C. apsheronica Aliev, 1987, should be conspecific with the type species C. mnemosyne. Based on the data of morphology and infraciliature, an updated key to 5 Chlamydodon species is supplied.