Diversity, Distribution, and Development of Hyperparasitic Microsporidia in Gregarines within One Super-Host.

Autor: Frolova EV; Laboratory of Cytology of Unicellular Organisms, Institute of Cytology of Russian Academy of Sciences, Tikhoretsky Ave. 4, 194064 St. Petersburg, Russia.; Department of Invertebrate Zoology, Faculty of Biology, St Petersburg University, Universitetskaya Emb. 7/9, 199034 St. Petersburg, Russia., Paskerova GG; Department of Invertebrate Zoology, Faculty of Biology, St Petersburg University, Universitetskaya Emb. 7/9, 199034 St. Petersburg, Russia., Smirnov AV; Department of Invertebrate Zoology, Faculty of Biology, St Petersburg University, Universitetskaya Emb. 7/9, 199034 St. Petersburg, Russia., Nassonova ES; Laboratory of Cytology of Unicellular Organisms, Institute of Cytology of Russian Academy of Sciences, Tikhoretsky Ave. 4, 194064 St. Petersburg, Russia.
Jazyk: angličtina
Zdroj: Microorganisms [Microorganisms] 2023 Jan 06; Vol. 11 (1). Date of Electronic Publication: 2023 Jan 06.
DOI: 10.3390/microorganisms11010152
Abstrakt: Metchnikovellids (Microsporidia: Metchnikovellida) are poorly studied hyperparasitic microsporidia that live in gregarines inhabiting the intestines of marine invertebrates, mostly polychaetes. Our recent studies showed that diversity of metchnikovellids might be significantly higher than previously thought, even within a single host. Four species of metchnikovellids were found in the gregarines inhabiting the gut of the polychaete Pygospio elegans from littoral populations of the White and Barents Seas: the eugregarine Polyrhabdina pygospionis is the host for Metchnikovella incurvata and M. spiralis, while the archigregarine Selenidium pygospionis is the host for M. dogieli and M. dobrovolskiji. The most common species in the White Sea is M. incurvata, while M. dobrovolskiji prevails in the Barents Sea. Gregarines within a single worm could be infected with different metchnikovellid species. However, co-infection of one and the same gregarine with several species of metchnikovellids has never been observed. The difference in prevalence and intensity of metchnikovellid invasion apparently depends on the features of the life cycle and on the development strategies of individual species.
Competing Interests: The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results.
Databáze: MEDLINE