Kumar Santosh, Foissner Wilhelm
Universität Salzburg, FB Organismische Biologie, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria.
Universität Salzburg, FB Organismische Biologie, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria.
Eur J Protistol. 2017 Feb;57:61-72. doi: 10.1016/j.ejop.2016.09.001. Epub 2016 Sep 10.
Using standard methods, we describe the morphology and ontogenesis of a possibly very rare ciliate, Stylonychia (Metastylonychia) nodulinucleata nov. subgen (basionym: Stylonychia nodulinucleataShi and Li, 1993), isolated from soil of the Murray River floodplain in Australia. Further, we provide an English translation of the Chinese original description. Whether the Australian population is conspecific with the Chinese Stylonychia nodulinucleata requires a careful redescription of the latter. The new subgenus is characterized by a moniliform macronuclear strand and an ontogenetic feature, viz., that all cirri remain intact during anlagen formation. The moniliform macronuclear strand and the curved dorsal kineties resemble the stylonychid genus Coniculostomum. The species is easily recognized by the large size of the body and oral apparatus, the moniliform macronucleus, and the enormous caudal cirri reaching half of body length. Very likely, Stylonychia (Metastylonychia) nodulinucleata has a restricted distribution.
我们采用标准方法，描述了一种可能非常罕见的纤毛虫——结节核尖毛虫（新亚属：尖毛虫属（后尖毛虫亚属））的形态和个体发育过程，该纤毛虫是从澳大利亚墨累河泛滥平原的土壤中分离出来的。其原名为结节核尖毛虫（史和李，1993年）。此外，我们还提供了中文原始描述的英文译文。澳大利亚的这种纤毛虫与中国的结节核尖毛虫是否为同种，需要对后者进行仔细的重新描述。新亚属的特征是具有念珠状大核链以及一个个体发育特征，即所有纤毛在原基形成过程中保持完整。念珠状大核链和弯曲的背动基列类似于尖毛虫属的锥口虫属。该物种很容易通过其较大的体型、口器、念珠状大核以及长达体长一半的巨大尾纤毛来识别。结节核尖毛虫（后尖毛虫亚属）的分布范围很可能有限。
