In the World of Aquatic Parasites, Microsporidia Matter!

Microsporidia exhibit unexpectedly high diversity and host range in aquatic ecosystems, with recent studies revealing numerous previously unrecognized hosts and significant ecological variation.

• Why it matters: Understanding microsporidian diversity and host interactions is crucial because they may significantly influence the structure and functioning of aquatic food webs, yet their environmental roles remain largely unexplored.
• What they did: Researchers have used targeted metabarcoding, phylogenomics, and long-read sequencing to investigate microsporidian diversity, host associations, and ecological impacts across oceanic and lacustrine habitats.
• The result: Findings suggest that Microsporidia may strongly affect aquatic ecosystem dynamics, highlighting the need for further integrative research to fully characterize their diversity and ecological roles.