Refurbishing the marine parasitoid order Pirsoniales with newly (re)described marine and freshwater free-living predators.

ABSTRACT: Pirsoniales is a stramenopile order composed of marine parasitoids of diatoms with unique life cycle. Until recently, a single genus, Pirsonia, uniting six species, was known. The recent identification of new free-living eukaryotrophic Pirsoniales Pirsonia chemainus, Feodosia pseudopoda, and Koktebelia satura changed our understanding of this group as exclusively parasitic. However, their cell ultrastructure and feeding preferences were not fully studied due to the death of the cultures. In this study, we re-isolated some of these Pirsoniales and established six new strains exhibiting predatory behavior, including a first freshwater representative. This allowed us to describe five new genera and species, as well as to emend the diagnosis of the order Pirsoniales. The 18S rRNA gene phylogen

SUBMITTER: Prokina KI 

PROVIDER: S-EPMC11603286 | biostudies-literature | 2024 Nov-Dec

REPOSITORIES: biostudies-literature