Laboratory of Biodiversity and Evolution of Protozoa in Wetland, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China.
Laboratory of Biodiversity and Evolution of Protozoa in Wetland, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China.
Eur J Protistol. 2024 Jun;94:126088. doi: 10.1016/j.ejop.2024.126088. Epub 2024 May 2.
The morphology and morphogenesis of Lamtostyla paravitiphila nov. spec., a novel soil hypotrichous ciliate collected from eastern China, were investigated based on live observations and protargol-stained specimens. The new species is morphologically characterized as follows: seven to twelve macronuclear nodules, cortical granules absent, 19-26 adoral membranelles, three or four frontoventral cirri, the amphisiellid median cirral row extends to about mid-body and composed of 12-18 cirri, two or three transverse cirri, 27-39 left and 30-41 right marginal cirri, three almost bipolar dorsal kineties. Morphogenetically, it is characterized by the initial formation of six frontal-ventral-transverse cirral anlagen as primary primordia. Notably, the amphisiellid median cirral row and the posterior frontoventral cirrus (or cirri) contribute to the development of the frontal-ventral-transverse cirral anlagen, while the buccal cirrus may not participate in this process. Phylogenetic analyses based on small subunit ribosomal DNA sequence data indicate that the Lamtostyla species with available molecular data do not form a monophyletic group.
从中国东部采集的新型土壤寡毛类纤毛虫 Lamto styla paravitiphila nov. spec. 的形态和形态发生学研究基于活体观察和蛋白银染色标本进行。新种在形态上的特征如下：七个到十二个大核结节，无皮质颗粒，19-26 个口围膜纤毛，三个或四个额腹前纤毛，前口缘亚双联体纤毛列延伸到大约身体中部，由 12-18 根纤毛组成，两个或三个横纤毛，27-39 根左侧和 30-41 根右侧缘纤毛，三个几乎两极的尾动基体。在形态发生上，它的特征是最初形成六个额腹横前纤毛原基作为初级原基。值得注意的是，前口缘亚双联体纤毛列和后额腹前纤毛（或纤毛）有助于额腹横前纤毛原基的发育，而口纤毛可能不参与这个过程。基于小亚基核糖体 DNA 序列数据的系统发育分析表明，具有可用分子数据的 Lamto styla 物种没有形成一个单系群。
