Results 1 to 10 of about 1,403 (196)

A Reassessment of Phylogenetic Relationships in Class Oligohymenophorea (Protista, Ciliophora) Based on Updated Multigene Data. [PDF]

Ecol Evol
We report 97 new sequences, including SSU‐rRNA, ITS1‐5.8S‐ITS2 rRNA, LSU‐rRNA, mitochondrial cytochrome oxidase c subunit I, and mitochondrial small subunit ribosomal RNA genes of 30 oligohymenophorean populations. A comprehensive analysis of class Oligohymenophorea is conducted, encompassing 250 populations.
Li B, Song Y, Wang X, Zhao Q, Liu M, Liu L, Pan X, Yi Z.   +7 more
europepmc   +6 more sources

Further insights into the phylogeny of facultative parasitic ciliates associated with tetrahymenosis (Ciliophora, Oligohymenophorea) based on multigene data. [PDF]

Ecol Evol, 2023
(1) All the parasitic and facultative parasitic species cluster in borealis group. (2) With the addition of new sequences, Tetrahymena is still divided into three groups, namely the “borealis group,” the “australis group,” and the “paravorax group.” (3) the cluster pattern of all the newly sequenced facultative parasitic Tetrahymena species shows that ...
Liu L, Jiang M, Zhou C, Li B, Song Y, Pan X.   +5 more
europepmc   +8 more sources

Identification of a non-canonical ciliate nuclear genetic code where UAA and UAG code for different amino acids. [PDF]

PLoS Genet, 2023
The genetic code is one of the most highly conserved features across life. Only a few lineages have deviated from the “universal” genetic code. Amongst the few variants of the genetic code reported to date, the codons UAA and UAG virtually always have ...
McGowan J, Kilias ES, Alacid E, Lipscombe J, Jenkins BH, Gharbi K, Kaithakottil GG, Macaulay IC, McTaggart S, Warring SD, Richards TA, Hall N, Swarbreck D.   +12 more
europepmc   +5 more sources

Unravelling the importance of the eukaryotic and bacterial communities and their relationship with Legionella spp. ecology in cooling towers: a complex network. [PDF]

Microbiome, 2020
: Background Cooling towers are a major source of large community-associated outbreaks of Legionnaires’ disease, a severe pneumonia. This disease is contracted when inhaling aerosols that are contaminated with bacteria from the genus Legionella, most ...
Paranjape K, Bédard É, Shetty D, Hu M, Choon FCP, Prévost M, Faucher SP.   +6 more
europepmc   +5 more sources

Morphology and Molecular Phylogeny of Endosymbiotic Ciliates (Peritrichia, Mobilida) of Marine Invertebrates with Descriptions of Two Novel Species Urceolaria clepsydra n. sp. and Urceolaria bratalia n. sp. [PDF]

J Eukaryot Microbiol
ABSTRACT Mobilid ciliates are a morphologically distinct group of protists that form a wide range of symbiotic relationships with aquatic animals and includes three subgroups: Trichodinidae, Urceolariidae, and Polycyclidae. Trichodinids are best known for infecting fishes, whereas urceolariids infect diverse marine invertebrates.
Martinez G, Leander BS, Park E.
europepmc   +2 more sources

Microbial predation accelerates granulation and modulates microbial community composition. [PDF]

BMC Microbiology, 2021
BackgroundBacterial communities are responsible for biological nutrient removal and flocculation in engineered systems such as activated floccular sludge.
Chan, SH, Ismail, MH, McDougald, D, Rice, SA, Tan, CH   +4 more
core   +2 more sources

Somatic genome architecture and molecular evolution are decoupled in "young" linage-specific gene families in ciliates. [PDF]

PLoS One
The evolution of lineage-specific gene families remains poorly studied across the eukaryotic tree of life, with most analyses focusing on the recent evolution of de novo genes in model species.
Maurer-Alcalá XX, Cote-L'Heureux A, Kosakovsky Pond SL, Katz LA.   +3 more
europepmc   +3 more sources

Adaptation of Marine Heterotrophic Protists to Long‐Term Warming Selection [PDF]

Global change biology.
Our study unraveled profitable adaptations of marine protozoa to long‐term warming. The optimal temperature, maximum growth rates, cell homeostasis, and cell size significantly increased after warming adaptation, suggesting a resilient future for this functional group.
Pang M, Gao Z, Huang L, Chan C, Zhang X, Su R, Pan K, Liu H.   +7 more
europepmc   +2 more sources

Seasonality regulates the taxonomic and functional compositions of protists responding to climate warming in forest ecosystems

Journal of Sustainable Agriculture and Environment, Volume 2, Issue 4, Page 529-540, December 2023., 2023
Abstract Introduction Protists are unicellular eukaryotes including important predators, parasites and phototrophs, and play pivotal roles in organic matter decomposition, biogeochemical nutrient cycling and various ecosystem functions. Unravelling the impact of climate warming on soil protists is paramount in predicting how these microorganisms will ...
Fangfang Li, Anqi Sun, Xiaofei Liu, Peixin Ren, Bing‐Xue Wu, Ju‐Pei Shen, Li Bi, Ji‐Zheng He, Yusheng Yang, Hang‐Wei Hu   +9 more
wiley   +1 more source

Diversity of ‘simple’ multicellular eukaryotes: 45 independent cases and six types of multicellularity

Biological Reviews, Volume 98, Issue 6, Page 2188-2209, December 2023., 2023
ABSTRACT Multicellularity evolved multiple times in the history of life, with most reviewers agreeing that it appeared at least 20 times in eukaryotes. However, a specific list of multicellular eukaryotes with clear criteria for inclusion has not yet been published.
Łukasz Lamża
wiley   +1 more source