🦠 New #symbionts in #wastewater: #denitrifying #protist #endosymbionts are found in #sewage plants all over the world. One common species releases #nitrousoxide.
Our now
@ISMEmicrobes
mpi-bremen.de/en/Page6579.html
Discovery of rare #protist reveals previously unknown branch of eukaryotic tree of life https://phys.org/news/2025-11-discovery-rare-protist-reveals-previously.html
New #ISEPpapers: Rare microbial relict sheds light on an ancient eukaryotic supergroup https://www.nature.com/articles/s41586-025-09750-0
#Protists #Microbes #Evolution #Eukaryotes #TreeOfLife #NewSpecies
New #ISEPpapers! Towards a trait-based framework for protist ecology and evolution: Mahwash Jamy et al. https://www.cell.com/trends/microbiology/fulltext/S0966-842X(25)00251-3
"Recently developed environment- and taxon-specific trait databases are a strong foundation for studies of #protist functional diversity, but efforts remain fragmented... a unified trait database for #protists is timely, achievable, and would catalyze transformative research on their #biodiversity, #ecology and #evolution."
'Screening for the ciliate Buxtonella sulcata in free-ranging dairy cattle on Terceira Island, Azores archipelago
Translated title: Dépistage du cilié Buxtonella sulcata chez les vaches laitières élevées en liberté sur l’île de Terceira, dans l’archipel des Açores'
- an article in 'Parasite' by @EDPSciences on #ScienceOpen:
🔗 https://www.scienceopen.com/document?vid=9c808384-922c-4ff1-8d00-689b878b7985
<p xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" class="first" dir="auto" id="d3328310e186"> <i>Buxtonella sulcata</i> is an alveolate ciliate protist, historically considered a commensal of the gastrointestinal tract of cattle. Despite the fact that its cysts are morphologically identical to those of <i>Balantioides coli</i>, molecular identification techniques have shed new light on its role as a pathogen. This work aimed to assess the presence of this ciliate in the population of dairy cattle on the Azorean island of Terceira by means of molecular analyses (ITS1–5.8S–ITS2 rRNA) of stool samples. A total of 116 samples were collected from adult Holstein-Friesian dairy cows, with no signs of gastrointestinal disease. A proportion of 49.1% of the samples were PCR-positive for <i>Bu. sulcata</i>, and 12 different genetic sequences were identified. These findings highlight the need for future research concerning the factors that influence the presence of <i>Bu. sulcata</i> in the gastrointestinal tract of dairy cows, the role of bovines as possible sources of infection, and the impact this ciliate may have on the health, welfare, and productivity of these animals. </p><p xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" class="first" dir="auto" id="d3328310e200"> <i>Buxtonella sulcata</i> est un protiste cilié alvéolé, historiquement considéré comme un commensal du tube digestif des bovins. En dépit du fait que la morphologie de ses kystes est identique à celle de <i>Balantioides coli</i>, les techniques d’identification moléculaire ont apporté un nouvel éclairage sur son rôle comme pathogène. Ce travail vise à évaluer la présence de ce cilié dans la population de vaches laitières de l’île de Terceira, aux Açores, grâce à des analyses moléculaires (ARNr ITS1–5.8S–ITS2) d’échantillons de selles. Au total, 116 échantillons ont été prélevés sur des vaches laitières Holstein adultes, ne présentant aucun signe de maladie gastro-intestinale. Une proportion de 49,1 % des échantillons étaient positifs à la PCR pour <i>Bu. sulcata</i> et 12 séquences génétiques différentes ont été identifiées. Ces résultats soulignent la nécessité de recherches futures concernant les facteurs qui influencent la présence de <i>Bu. sulcata</i> dans le tractus gastro-intestinal des vaches laitières, le rôle des bovins comme sources possibles d’infection et l’impact que ce cilié peut avoir sur la santé, le bien-être et la productivité de ces animaux. </p>
New #ISEPpapers! Characterization of Allobodo yubaba sp. nov. and Novijibodo darinka gen. et sp. nov., cultivable free‐living species of the phylogenetically enigmatic kinetoplastid taxon Allobodonidae https://pmc.ncbi.nlm.nih.gov/articles/PMC11771631/ by Julia Packer et al.
"#Kinetoplastids are a large and diverse #protist group, spanning ecologically important free‐living forms to medically important #parasites."
Kinetoplastids are a large and diverse protist group, spanning ecologically important free‐living forms to medically important parasites. The taxon Allobodonidae holds an unresolved position within kinetoplastids, and the sole described species, ...
NIOO-KNAW
MPI for Marine Microbiology
ISEP
ScienceOpen
Jess Holz
Frédéric Rimet
