Cedrola Franciane, Dias Roberto Júnio Pedroso, Martinele Isabel, D'Agosto Marta
Laboratório de Protozoologia, Programa de Pós-graduação em Comportamento e Biologia Animal, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, CEP 36036-900, Juiz de Fora, Minas Gerais, Brazil..
Zootaxa. 2017 May 3;4258(6):581-585. doi: 10.11646/zootaxa.4258.6.8.
To date the genus Diploplastron comprised only one species of ophryoscolecid ciliate, Diploplastron affine, which is characterized by having two retractable ciliary zones in the anterior end of the body, two slender and juxtaposed skeletal plates on the right side, a rod shape macronucleus, and two contractile vacuoles. During study on the characterization of rumen ciliate community composition in Brazilian domestic sheep, we observed ciliates with atypical morphology but with diagnostic features of genus Diploplastron. This study describes Diploplastron dehorityi, a new species of ophryoscolecid ciliate, that differs from D. affine, primarily, in the morphology of skeletal plates, morphology of nuclear apparatus and body shape. In addition to the similarities between the new species and congener species, D. dehorityi has some morphological similarities to species of genus Eremoplastron.
迄今为止，双膜皮菌属仅包含一种复毛目纤毛虫，即亲缘双膜皮菌，其特征是在身体前端有两个可缩回的纤毛区，右侧有两个细长且并列的骨板，一个杆状大核，以及两个伸缩泡。在对巴西家养绵羊瘤胃纤毛虫群落组成特征的研究中，我们观察到了形态非典型但具有双膜皮菌属诊断特征的纤毛虫。本研究描述了一种新的复毛目纤毛虫——德霍里蒂双膜皮菌，它与亲缘双膜皮菌的主要区别在于骨板形态、核器形态和体型。除了新物种与其同属物种之间的相似性外，德霍里蒂双膜皮菌与裸膜皮菌属的物种在形态上也有一些相似之处。
