New #ISEPpapers! Single-cell #phylogenomics identifies major groups of marine eugregarine endosymbionts (Apicomplexa) https://www.sciencedirect.com/science/article/abs/pii/S1055790326000187
#protists #microbes #parasites #evolution #phylogeny #symbiosis
How a #parasite gave up sex to find more hosts—and why its victory won't last https://phys.org/news/2026-01-parasite-gave-sex-hosts-victory.html
Host range expansion of asexual parasite can be explained by loss of adaptions in Muller’s Ratchet https://www.nature.com/articles/s41467-025-65843-4
"an asexual lineage of #Giardia managed to infect a wider range of hosts than its sexual ancestor... at a cost. Because these #parasites don't exchange genetic material, harmful mutations build up over time, leading to eventual collapse"
New #ISEPpapers! A genetic transformation system for the heterotrophic diatom #Nitzschia putrida (Bacillariophyceae) https://onlinelibrary.wiley.com/doi/10.1111/jpy.70070
Shelled #amoeba crawls like an octopus, shifting tactics on the go https://phys.org/news/2026-01-shelled-amoeba-octopus-shifting-tactics.html https://www.jstage.jst.go.jp/article/pjab/advpub/0/advpub_pjab.102.001/_html/-char/en
"Commonly found in #peatlands and freshwater environments, #Arcella belongs to a group called testate #amoebae, characterized by having its body enclosed, almost entirely, within a dome-shaped shell... Through an opening on its underside, Arcella can mold its cell body to create finger-like projections called #pseudopodia to capture prey and move around."
New #ISEPpapers! Legacies of consecutive summer droughts on soil-borne plant parasitic #protists (Oomycota and Phytomyxea) and protistan consumers (Cercozoa) along an experimental plant diversity gradient https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.70756