%0 Journal Article %T Microsporidia in a Woodland Pool I. Lanatospora costata sp. n. (Opisthosporidia, Microsporidia), Parasite of Megacyclops viridis (Crustacea, Copepoda): Fine Structure and Molecular Phylogeny. %A Vávra, Jiří %A Hyliš, Miroslav %A Fiala, Ivan %A Refardt, Dominik %A Larsson, J. I. Ronny %J Acta Protozoologica %V 2016 %R 10.4467/16890027AP.16.023.6010 %N Volume 55, Issue 4 %P 269-280 %K Lower fungi, phylogeny, utrastructure, spore, exospore %@ 0065-1583 %D 2016 %U https://ejournals.eu/en/journal/acta-protozoologica/article/microsporidia-in-a-woodland-pool-i-lanatospora-costata-sp-n-opisthosporidia-microsporidia-parasite-of-megacyclops-viridis-crustacea-copepoda-fine-structure-and-molecular-phylogeny %X Lanatospora costatasp. n., a new microsporidian parasite of the adipose and connective tissue cells of Megacyclops viridis (Jurine, 1820) (Copepoda: Cyclopidae) is described. It was isolated from a woodland pool with a rich and diverse fauna of microsporidia-infected small crustaceans and insect larvae. The parasite is structurally similar to the genus Lanatospora Voronin, 1989, characterized by a complex decorated exospore. In the described species the exospore is armoured by a conspicuous layer of interwoven ribs forming labyrinth on the spore surface. SSU rRNA phylogeny places the organism in the “aquatic outgroup” of microsporidia (Vossbrinck et al. 2004), which includes a number of microsporidia from aquatic microcrustacea of the classes Copepoda and Cladocera. The increasing number of available SSU rRNA gene sequences of these microsporidia allows a more detailed interpretation of their developmental histories.