Discomorphella pedroeneasi sp. nov. (Ciliophora, Odontostomatida): an anaerobic ciliate hosting multiple cytoplasmic and macronuclear endocytobionts
| Autor: | Daniel J. G. Lahr, Gabriela Cristina Küppers, Thiago da Silva Paiva, Michael Schweikert, Inácio Domingos da Silva-Neto |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Cytoplasm ENDOSYMBIOSIS Otras Ciencias Biológicas Rare species Identification key Microbiology Armophorea ODONTOSTOMATIDA Ciencias Biológicas boats 03 medical and health sciences boats.ship_class Microscopy Electron Transmission Species Specificity Macronucleus MORFOLOGIA ANIMAL Organelle Botany PLAGIOPYLEA Anaerobiosis Ciliophora Symbiosis ARMOPHOREA Ciliate biology Endosymbiosis Odontostomatida TAXONOMY BRAZIL biology.organism_classification 030104 developmental biology Evolutionary biology Microscopy Electron Scanning Taxonomy (biology) CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | Odontostomatids are among the less studied representatives of the Ciliophora. They are anaerobic microeukaryotes usually occurring as rare species in sapropelic environments. Here we describe a novel species of Discomorphella, named Discomorphella pedroeneasi sp. nov., using light and electron microscopy observations. Discomorphella pedroeneasi displays many complex morphological features, for which new terms are introduced, such as the auricules, epistomial fringe spacer, frontal awning, odontostomatid ciliary sockets, oral lips and ventral flap. Remarkably, D. pedroeneasi has at least six types of endocytobionts, including intramacronuclear ones, and organelles ultrastructurally similar to the M/H bodies of the odontostomatid Saprodinium dentatum. Based on the new data and revision of the literature, we propose two new diagnostic characters for species separation within Discomorphella: the fringe spacer ratio and the posterior fringe ratio. The taxonomy of Discomorphella is revised and an identification key is provided. Fil: da Silva Paiva, Thiago. Universidade Federal do Pará; Brasil. Universidade de Sao Paulo. Departamento de Fisiología. Instituto de Biociencias; Brasil Fil: Kuppers, Gabriela Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Fil: Galafasse Lahr, Daniel José. Universidade de Sao Paulo. Departamento de Fisiología. Instituto de Biociencias; Brasil Fil: Schweikert, Michael. Universität Stuttgart; Alemania Fil: da Silva Neto, Inácio Domingos. Universidade Federal do Rio de Janeiro; Brasil |
| Databáze: | OpenAIRE |
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