A new microsporidium Percutemincola moriokae gen. nov., sp. nov. from Oscheius tipulae: A novel model of microsporidia-nematode associations

Autor: Takahiro Tanji, Eisuke Kuroda, Kenji Nishikori, Ayako Ohashi-Kobayashi, Davin H. E. Setiamarga, Hirohisa Shiraishi
Rok vydání: 2018
Předmět:
Zdroj: Parasitology. 145(14)
ISSN: 1469-8161
Popis: Here, we describe a new microsporidiumPercutemincola moriokaegen. nov., sp. nov., which was discovered in the intestinal and hypodermal cells of a wild strain of the nematodeOscheius tipulaethat inhabits in the soil of Morioka, Iwate Prefecture, Japan. The spores ofPe. moriokaehad an average size of 1.0 × 3.8µm and 1.3 × 3.2µm in the intestine and hypodermis, respectively, and electron microscopy revealed that they exhibited distinguishing features with morphological diversity in the hypodermis. Isolated spores were able to infect a reference strain ofO. tipulae(CEW1) through horizontal transmission but not the nematodeCaenorhabditis elegans. Upon infection, the spores were first observed in the hypodermis and then in the intestine the following day, suggesting a unique infectious route among nematode-infective microsporidia. Molecular phylogenetic analysis grouped this new species with the recently identified nematode-infective parasitesEnteropsectraandPancytosporaforming a monophyletic sister clade toOrthosomellain clade IV, which also includes human pathogens such asEnterocytozoonandVittaforma. We believe that this newly discovered species and its host could have application as a new model in microsporidia–nematode association studies.
Databáze: OpenAIRE