Results 41 to 50 of about 8,154 (184)

From Gene Copies to Cell Numbers: Advancing Quantitative Approaches in Protistan Ecology Using Digital PCR

Molecular Ecology Resources, Volume 26, Issue 5, July 2026.
ABSTRACT Quantifying abundances of unicellular eukaryotes (protists) remains a central challenge in microbial ecology, as methodological differences can strongly influence abundance estimates and ecological interpretation. Although molecular tools have thus far greatly improved our understanding of protists, high rRNA gene copy numbers limit ...
Megan Gross, Ulrike Koll, Bettina Sonntag, Thorsten Stoeck   +3 more
wiley   +1 more source

The evolutionary conserved proteins CEP90, FOPNL, and OFD1 recruit centriolar distal appendage proteins to initiate their assembly.

PLoS Biology, 2022
In metazoa, cilia assembly is a cellular process that starts with centriole to basal body maturation, migration to the cell surface, and docking to the plasma membrane.
Pierrick Le Borgne, Logan Greibill, Marine Hélène Laporte, Michel Lemullois, Khaled Bouhouche, Mebarek Temagoult, Olivier Rosnet, Maeva Le Guennec, Laurent Lignières, Guillaume Chevreux, France Koll, Virginie Hamel, Paul Guichard, Anne-Marie Tassin   +13 more
doaj   +1 more source

An Atypical Aquaporin 1 Derived From Paramecium multimicronucleatum Functions as a Multifunctional Channel That Permeates Water, Glycerol, and Urea

Journal of Eukaryotic Microbiology, Volume 73, Issue 4, July/August 2026.
ABSTRACT Although it had been reported that the translation product of the functional aquaporin gene, aqp1, is localized to the contractile vacuole complex of Paramecium multimicronucleatum, the molecules that pass through this channel protein had not been identified. In the present study, we introduced and expressed this protein in Xenopus oocytes and
Masaki Ishida, Shuichi Ueno, Takashi Tominaga, Kurumi Tanaka, Akito Horikawa, Manabu Hori   +5 more
wiley   +1 more source

Genome-wide identification and functional analysis of metallothionein family genes in response to cadmium/copper exposure in the unicellular eukaryote Paramecium

Ecotoxicology and Environmental Safety
Metallothioneins (MTs) comprise an exceptionally heterogeneous protein family with cysteine-rich domains playing crucial roles in metal detoxification for eukaryotes, including protists.
Congjun Li, Yu Fu, Yulin Guo, Eleni Gentekaki, Qiuhui Pang, Lifang Li   +5 more
doaj   +1 more source

The Paramecium germline genome provides a niche for intragenic parasitic DNA: evolutionary dynamics of internal eliminated sequences. [PDF]

PLoS Genetics, 2012
Insertions of parasitic DNA within coding sequences are usually deleterious and are generally counter-selected during evolution. Thanks to nuclear dimorphism, ciliates provide unique models to study the fate of such insertions.
Olivier Arnaiz, Nathalie Mathy, Céline Baudry, Sophie Malinsky, Jean-Marc Aury, Cyril Denby Wilkes, Olivier Garnier, Karine Labadie, Benjamin E Lauderdale, Anne Le Mouël, Antoine Marmignon, Mariusz Nowacki, Julie Poulain, Malgorzata Prajer, Patrick Wincker, Eric Meyer, Sandra Duharcourt, Laurent Duret, Mireille Bétermier, Linda Sperling   +19 more
doaj   +1 more source

Single‐nuclei RNA sequencing reveals heterogeneity within developing GnRH3 neurons in zebrafish

Journal of Neuroendocrinology, Volume 38, Issue 7, July 2026.
Abstract Gonadotropin‐releasing hormone (GnRH) is a central regulator of vertebrate reproduction regulating pituitary gonadotropins. In zebrafish, GnRH3 serves as the hypophysiotropic isoform. Its neurons develop by migrating from the nasal placode to the hypothalamus, forming several distinct subpopulations along the migratory path.
Yalong Sun, Matan Golan, Yonathan Zohar, Xiaoxuan Fan, Nilli Zmora   +4 more
wiley   +1 more source

Continual decision‐making dynamics across biological organisms

Biological Reviews, Volume 101, Issue 3, Page 1059-1072, June 2026.
ABSTRACT Decision‐making is a central function of adaptive behaviour in biological agents. However, strategies for adaptive decision‐making can vary substantially across species. Here, we aim to extend the comparative scope of decision‐making analyses to phylogenetically diverse organisms.
Liberty Severs, Qiuran Wang
wiley   +1 more source

Cross-Generational Effects and Non-random Developmental Response to Temperature Variation in Paramecium

Frontiers in Cell and Developmental Biology, 2020
Unicellular organisms such as ciliates are largely neglected in research on adaptive developmental plasticity, although their nuclear dualism offers ideal circumstances to study development outside an embryonic context.
Rebecca Hagen, Valerio Vitali, Francesco Catania   +2 more
doaj   +1 more source

Rickettsiales in South America: A Systematic Review of Their Molecular Detection and Distribution in Arthropods and Vertebrates

Public Health Challenges, Volume 5, Issue 2, June 2026.
ABSTRACT Bacteria of the order Rickettsiales comprise a diverse group of obligate intracellular microorganisms that are globally distributed and highly prevalent in tropical and subtropical regions. In South America, these bacteria have been associated with arthropod vectors, such as ticks, fleas, mites, lice, and certain dipterans, as well as with a ...
Cristian J. Zamorano‐Gómez, Paula A. Ossa‐López, Estefani T. Martínez‐Sánchez, Fredy A. Rivera‐Paéz   +3 more
wiley   +1 more source

Nucleomorph phylogenomics suggests a deep and ancient origin of cryptophyte plastids within Rhodophyta

New Phytologist, Volume 250, Issue 5, Page 3103-3113, June 2026.
Summary The evolutionary origin of red algae‐derived complex plastids remains obscure. Cryptophyta, one of four eukaryotic lineages harboring these plastids, still contains nucleomorphs, which are highly reduced remnants of red algal nuclei. The genes present on nucleomorph genomes can be used for phylogenomic reconstruction in order to unravel the ...
Lukáš V. F. Novák, Sergio A. Muñoz‐Gómez, Maria Ciobanu, Fabian van Beveren, Laura Eme, Purificación López‐García, David Moreira   +6 more
wiley   +1 more source