Protist diversity and phylogeny

This paper describes the discovery of a new marine Stentor species, Stentor hondawara, and reports its whole-genome analysis revealing unique ecological adaptations compared to freshwater Stentor species.

This paper presents an in-house electroporation buffer for choanoflagellates that achieves transfection efficiency comparable to proprietary buffers, increasing accessibility for genetic research.

The paper analyzes genomes and transcriptomes of Rhynchopus flagellates to assess endosymbiotic gene transfer (EGT) from holosporacean and chlamydiacean symbionts, finding no evidence of recent EGT and highlighting dynamic HGT patterns.

This study investigates the evolutionary pathways of anaerobic mitochondrial adaptations in breviate protists by analyzing transcriptomes and predicting MRO proteomes across eight species.

The paper corrects a strain mislabeling error in a genome sequencing study of Prymnesium parvum, highlighting the need for clade-specific markers.

The paper describes the phylogenetic and morphological analysis of 17 novel Labyrinthulomycetes strains from Nova Scotia, identifying them as three genera and expanding genetic diversity in Atlantic Canadian waters.

The paper identifies two distinct green algal symbionts in Hynobius nigrescens eggs, belonging to different Oophila subgroups, through phylogenetic and morphological analysis of isolated algal cultures.

This study shows that endosymbiotic algae evolve traits specialized for intracellular niches, reducing their fitness in extracellular environments, thereby stabilizing endosymbiosis through evolutionary entrapment.

This study investigates the evolutionary history of Pseudoblepharisma tenue to understand the factors limiting the frequency of purple photosymbioses.

This study analyzes environmental sequencing data to reveal the global distribution and hidden diversity of marine anaerobic ciliates, identifying many novel lineages.

This study shows Asgard archaea use dynamic actin-based protrusions for crawling motility, similar to eukaryotic cells, and this process is inhibited by actin inhibitors.

The paper investigates carbon transfer between Paramecium bursaria and its Chlorella symbionts, finding host-to-symbiont carbon transfer rather than the previously assumed algal-to-host direction.

This paper identifies an Asgard archaeon with an endomembrane system that changes with cell state, challenging previous views on eukaryogenesis.

The paper examines metabolic changes in Mesodinium species, finding that increased photosynthesis leads to reduced metabolic autonomy and loss of key biosynthetic capabilities.

The paper investigates the molecular responses of the diatom Coscinodiscus granii and its co-occurring dictyochophyte during infection by the oomycete Lagenisma coscinodisci, revealing effector mechanisms and host defense pathways.

The paper studies a dinoflagellate's tripartite symbiosis, showing a cyanobacterium in transition to an organelle, replacing the host's non-photosynthetic plastid.

The paper presents transcriptomic data for 11 free-living neobodonid kinetoplastids and reveals they are paraphyletic, with other metakinetoplastids descending from them.

The paper uses single-cell sequencing to reveal genetic diversity in Bodo flagellates and their bacterial endosymbionts, showing SSU rDNA is insufficient for species classification.

This study evaluates two acidotropic dyes for detecting mixotrophy in protists using lab cultures and field samples, finding they have mixed success with false positives and negatives.

The paper quantifies research focus on microbial eukaryotes, finding 12 human parasite species account for 47% of literature mentions despite comprising only 1% of known species.

This study resolves the phylogenetic placement of Argynnia by analyzing genomic data and proposes a new infraorder and family to accommodate it within Arcellinida.

The paper describes the regulated development of cannibalistic supergiant cells in a ciliate, showing they are distinct, transcriptionally unique stages triggered by internal and external factors.

CSI-SSU screens genomic datasets for contamination and taxonomic accuracy using phylogenetic methods, demonstrating its utility on the P10K database.

This study uses high-frequency in situ imaging to analyze the ecological behavior of mixotrophic Rhizaria, finding that mixotrophs better control their position and orientation in the water column.

The paper analyzes genomic data from marine anaerobic ciliates and their methanogenic symbionts to understand transmission modes and population divergence in syntrophic symbioses.

This study investigates the infection strategies of the marine diatom parasite Pirsonia using genomic and transcriptomic analyses, revealing its reliance on actin-based phagocytosis and surface proteins.

The paper identifies multiple bacterial endosymbionts in rumen ciliate protozoa using genome-resolved metagenomics, revealing new insights into microbial symbiosis.

The paper performs subcellular proteomics on Paradiplonema papillatum, identifying 4,870 proteins across 22 compartments and revealing carbohydrate metabolism capabilities and peroxisome plasticity.

This study uses single-cell sorting to identify and track seasonal changes in mixotrophic phytoplankton in a freshwater habitat, revealing their ecological roles and diversity.

The paper discovers host actin-driven mobility of symbionts in a dinoflagellate-acoel worm symbiosis, revealing previously unknown mechanisms of host-mediated movement.