Institute of Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung, Taiwan, ROC.
J Eukaryot Microbiol. 2010 Sep-Oct;57(5):429-34. doi: 10.1111/j.1550-7408.2010.00494.x. Epub 2010 Jul 20.
The marine oligotrichous ciliate Spirotontonia taiwanica n. sp. isolated from the coastal waters of northeastern Taiwan is reported, using live observation, protargol preparations and molecular data. The new species differs from the most similar, known congener Spirotontonia turbinata in the following features: (1) lower number of buccal membranelles (11-13 vs. 13-17); (2) higher number of whorls of girdle kinety (2.5 vs. 1.5); (3) lower number of macronuclear nodules (20-31 vs. 28-40); (4) larger cell size (80-104 x 40-72 vs. 44-75 x 29-56 microm); (5) larger anterior cell end to buccal vertex (50 vs. 33 microm); (6) larger ratio of cell length to cell width (1.74 vs. 1.38); (7) the different beginning of the girdle kinety (posterior to the buccal vertex vs. left of the buccal zone portion); and (8) the disappearance of the L-shaped argyrophilic structures in the last half whorl and occasionally the first 1-10 dikinetids (i.e. yes vs. no). The molecular data also reveal two distinct species, deviating by 2% or 33% base pairs.
本研究报道了一种采自中国台湾东北部沿海海域的海洋寡毛缘毛目腹毛类纤毛虫新种——台湾旋口钟虫（Spirotontonia taiwanica n. sp.），通过活体观察、蛋白银染色和分子数据进行了描述。该新种与最相似的已知近缘种——旋口钟虫（Spirotontonia turbinata）的区别在于：（1）口围带纤毛环的数量较少（11-13 对 vs. 13-17 对）；（2）口围带基体的轮数较高（2.5 对 vs. 1.5 对）；（3）大核节结的数量较少（20-31 个 vs. 28-40 个）；（4）细胞较大（80-104 x 40-72 vs. 44-75 x 29-56 微米）；（5）前体细胞端到口面顶点的距离较大（50 微米 vs. 33 微米）；（6）细胞长度与宽度的比值较大（1.74 vs. 1.38）；（7）基体起始位置不同（位于口面顶点之后 vs. 口面区左侧）；（8）最后一半基体轮和偶尔的前 1-10 条联体动基列中 L 形嗜银结构消失（即有 vs. 无）。分子数据也显示出两个不同的种，碱基差异为 2%或 33%。
