Diplonemids - A Review on "New" Flagellates on the Oceanic Block
Language English Country Germany Media print-electronic
Document type Journal Article, Review, Research Support, Non-U.S. Gov't
PubMed
35339983
DOI
10.1016/j.protis.2022.125868
PII: S1434-4610(22)00013-X
Knihovny.cz E-resources
- Keywords
- Euglenozoa, Protists, ecology, marine flagellates, taxonomic revision, ultrastructure,
- MeSH
- Euglenozoa * genetics MeSH
- Eukaryota genetics MeSH
- Phylogeny MeSH
- Oceans and Seas MeSH
- Parasites * MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Review MeSH
- Geographicals
- Oceans and Seas MeSH
Diplonemids are a group of flagellate protists, that belong to the phylum Euglenozoa alongside euglenids, symbiontids and kinetoplastids. They primarily inhabit marine environments, though are also found in freshwater lakes. Diplonemids have been considered as rare and unimportant eukaryotes for over a century, with only a handful of species described until recently. However, thanks to their unprecedented diversity and abundance in the world oceans, diplonemids now attract increased attention. Recent improvements in isolation and cultivation have enabled characterization of several new genera, warranting a re-examination of all available knowledge gathered so far. Here we summarize available data on diplonemids, focusing on the recent advances in the fields of diversity, ecology, genomics, metabolism, and endosymbionts. We illustrate the life stages of cultivated genera, and summarise all reported interspecies associations, which in turn suggest lifestyles of predation and parasitism. This review also includes the latest classification of diplonemids, with a taxonomic revision of the genus Diplonema. Ongoing efforts to sequence various diplonemids suggest the presence of large and complex genomes, which correlate with the metabolic versatility observed in the model species Paradiplonema papillatum. Finally, we highlight its successful transformation into one of few genetically tractable marine protists.
Department of Biology Dalhousie University Halifax Canada
Department of Botany University of British Columbia Vancouver Canada
Institute of Parasitology Biology Centre Czech Academy of Sciences České Budějovice Czech Republic
References provided by Crossref.org
On the possibility of yet a third kinetochore system in the protist phylum Euglenozoa
Functional differentiation of Sec13 paralogues in the euglenozoan protists
Massive Accumulation of Strontium and Barium in Diplonemid Protists
Water masses shape pico-nano eukaryotic communities of the Weddell Sea
