Love #protists? Then you'd love this! Beautiful collection of hand-drawn critters represented here at the Oxford-Japan symposium on ethological dynamics in diorama environments sites.google.com/view/oxford-... #ciliates #testateamoeba #diatoms

New #ISEPpapers #preprint! Regulated development of cannibalistic supergiant cells https://www.biorxiv.org/content/10.1101/2025.08.19.671124v2

"we describe a ciliate undergoing drastic morphological transformations... supergiants increase in size, change shape, and modify their behaviour to cannibalize clonal relatives."

#protists #microbes #ciliates

New #ISEPpapers! Morphology and Molecular Phylogeny of Endosymbiotic #Ciliates (Peritrichia, Mobilida) of Marine #Invertebrates with Descriptions of Two #NewSpecies Urceolaria clepsydra n. sp. and Urceolaria bratalia n. sp. https://onlinelibrary.wiley.com/doi/10.1111/jeu.70003

#Protists #Microbes #Symbiosis #Microscopy

I had no idea how cool #Stentor #Ciliates are - some videos make it appear that there is a moving chainsaw slurping up food (it’s only 2mm long) and the mouth is all about wave motion of tiny cilia. Check out the videos on the #Wikipedia page! https://en.wikipedia.org/wiki/Stentor_(ciliate)
Stentor (ciliate) - Wikipedia

Ciliates party hard in my hay infusion even on a Sunday morning.

#ciliates #protists #microscope #microscopy

Research reveals even single-cell organisms exhibit habituation, a simple form of learning https://phys.org/news/2024-11-reveals-cell-habituation-simple.html

Biochemically plausible models of habituation for single-cell learning: Lina Eckert et al. https://www.cell.com/current-biology/fulltext/S0960-9822(24)01430-1

"Earlier work found that a single-cell ciliate showed avoidance behavior, not unlike the actions observed in animals that encounter unpleasant stimuli."

#Protists #Microbes #Ciliates

Research reveals even single-cell organisms exhibit habituation, a simple form of learning

A dog learns to sit on command, a person hears and eventually tunes out the hum of a washing machine while reading … The capacity to learn and adapt is central to evolution and, indeed, survival.

Phys.org

Advanced genetic techniques and #microscopy offer new insights into anaerobic ciliate and methanogen #symbiosis https://phys.org/news/2024-10-advanced-genetic-techniques-microscopy-insights.html

Methanogenic #symbionts of anaerobic #ciliates are host and habitat specific https://academic.oup.com/ismej/article/18/1/wrae164/7737421 #ISEPpapers by @joro

"This study provides a clearer understanding of how anaerobic ciliates have evolved a mix transmission mode to both maintain and replace their symbionts over time"

#microbes #protists #bacteria #archaea #methanogenesis #biology

Advanced genetic techniques and microscopy offer new insights into anaerobic ciliate and methanogen symbiosis

A recent study has uncovered critical details about the association between anaerobic ciliates and methanogenic archaea, a relationship that has fascinated scientists for over decades. Researchers from the Faculty of Science, Charles University, and University of Rhode Island have used advanced genetic techniques and microscopy to study this relationship in 32 species of free-living anaerobic ciliates, primarily from the order Metopida.

Phys.org

Single-celled eukaryote employs unconventional cytoskeletal components for dynamic shape-shifting https://phys.org/news/2024-10-celled-eukaryote-employs-unconventional-cytoskeletal.html

Dynamic shape-shifting of the single-celled eukaryotic predator Lacrymaria via unconventional cytoskeletal components https://www.cell.com/current-biology/abstract/S0960-9822(24)01214-4

"the remarkable morphological change in #Lacrymaria involves a unique #actin-#myosin system rather than the Ca2+-dependent system found in other contractile #ciliates."

#protists #microbes

Single-celled eukaryote employs unconventional cytoskeletal components for dynamic shape-shifting

Recently, a research group led by Prof. Miao Wei from the Institute of Hydrobiology (IHB) of the Chinese Academy of Sciences discovered that Lacrymaria cells utilize unconventional and novel components of the cytoskeleton to achieve their remarkable dynamic shape-shifting ability. This study is published in Current Biology.

Phys.org
New #ISEPpapers! Reductitherus cryptostomus n. gen., n. sp. (Ciliophora: Armophorea: Clevelandellida), a remarkable new nyctotherid from an Australian cockroach, Parapanesthia gigantea (Blaberidae: Panesthiinae) https://www.sciencedirect.com/science/article/pii/S1434461024000282 #protists #ciliates #microbes #NewSpecies #evolution #biology
Reductitherus cryptostomus n. gen., n. sp. (Ciliophora: Armophorea: Clevelandellida), a remarkable new nyctotherid from an Australian cockroach, Parapanesthia gigantea (Blaberidae: Panesthiinae)

Ciliates of the family Nyctotheridae (Armophorea: Clevelandellida) are frequent intestinal symbionts of various invertebrates and some poikilotherm ve…