Results 21 to 30 of about 2,390 (165)

Uptake of plastic microbeads by ciliate Paramecium aurelia [PDF]

, 2020
Microplastics (MPs) are small fraction of plastics that are less than 5 mm in length. They are bountiful and widespread pollutants in the aquatic environment.
Fyda, Janusz, Nugroho, Failasuf Aulia
core   +1 more source

Nuclear events during conjugation in the poorly studied model ciliate Paramecium jenningsi [PDF]

, 2023
Ciliated protists are highly differentiated unicellular eukaryotes that possess special sexual processes (conjugation and autogamy) that rely on their unique nuclear dimorphism, i.e., the presence of both a germline micronucleus (MIC) and a somatic ...
Al-Rasheid K. A. S., Gao F., Gong R., Jiang Y., Lu X., Ma H., Song W., Vallesi A., Wang L., Wu C., Zhang X., Zhang Z.   +11 more
core   +1 more source

Microscopic Aquatic Predators Strongly Affect Infection Dynamics of a Globally Emerged Pathogen [PDF]

, 2014
Research on emerging infectious wildlife diseases has placed particular emphasis on host-derived barriers to infection and disease. This focus neglects important extrinsic determinants of the host/pathogen dynamic, where all barriers to infection should ...
Azémar, Frédéric, Blooi, Mark, Clare, Frances C., Fisher, Matthew C., Garner, Trenton W.J., Guevara-Nieto, Michelle, Jäger, Lea, Leclerc, Camille, Loyau, Adeline, Martel, An, Pasmans, Franck, Schmeller, Dirk   +11 more
core   +3 more sources

Pyrimidine Dimers in the DNA of Paramecium aurelia

Biophysical Journal, 1968
The production and fate of thymine-containing pyrimidine dimers in Paramecium aurelia DNA was investigated in three experimental series: production of dimers by UV irradiation, fate of dimers in the dark, and "loss of photoreactivability of dimers." It is shown that cyclobutyl dimers are made by UV irradiation of Paramecium DNA in vivo, that because of
Sutherland, B.M., Carrier, W.L., Setlow, R.B.   +2 more
openaire   +3 more sources

Sex Determination: Ciliates' Self-Censorship [PDF]

, 2014
SummaryDifferentiation involves the expression of certain latent cellular characteristics and the repression of others. A new study has revealed how Paramecium uses short RNAs to delete information from the somatic genome of one of its two ...
Bloomfield, Gareth
core   +1 more source

gauseR: Simple methods for fitting Lotka‐Volterra models describing Gause’s “Struggle for Existence”

Ecology and Evolution, Volume 10, Issue 23, Page 13275-13283, December 2020., 2020
The competition and predation experiments conducted by G. F. Gause in the first half of the 20th century remain some of the best‐known empirical tests of Alfred Lotka and Vito Volterra's models of species interactions. Here, we collate data from more than 40 of these experiments, along with basic tools for fitting the Lokta‐Volterra models to empirical
Lina K. Mühlbauer, Maximilienne Schulze, W. Stanley Harpole, Adam T. Clark   +3 more
wiley   +1 more source

Paramecium tredecaurelia: A Unique Non-Polymorphic Species of the P. aurelia spp. Complex (Oligohymenophorea, Ciliophora) [PDF]

, 2013
New stands of Paramecium tredecaurelia, a rare species of the P. aurelia spp. complex, were identified in Thailand and Madagascar on the basis of mating reactions and molecular markers (rDNA and mtDNA).
FOKIN, SERGEY, Przyboś E., Sawka N, Surmacz M, Tarcz S   +4 more
core   +1 more source

Trade‐offs between morphology and thermal niches mediate adaptation in response to competing selective pressures

Ecology and Evolution, Volume 10, Issue 3, Page 1368-1377, February 2020., 2020
To explore how well organisms can cope with multiple simultaneous selective pressures—such as those produced by climate change—we exposed Paramecium caudatum populations to both temperature variability and predation. Our findings suggest that these two stressors produce conflicting pressures on both thermal performance and cell morphology, making ...
Stella F. Uiterwaal, Ian T. Lagerstrom, Thomas M. Luhring, Miranda E. Salsbery, John P. DeLong   +4 more
wiley   +1 more source

Intraspecies Variability in the Esterases and Acid Phosphatases of Four Species of the Paramecium aurelia Complex 1 [PDF]

, 1983
One hundred eighty-eight stocks of Paramecium primaurelia. P. biaurelia, P. tetraurelia. and P. octaurelia were grown axenically and screened for variation in four different esterases and acid phosphatase using starch gel electrophoresis.
Allen, Sally Lyman, Nerad, Thomas A., Rushford, Caroline L.   +2 more
core   +1 more source

The mitochondrial genome sequence of the ciliate Paramecium caudatum reveals a shift in nucleotide composition and codon usage within the genus Paramecium [PDF]

, 2011
Background Despite the fact that the organization of the ciliate mitochondrial genome is exceptional, only few ciliate mitochondrial genomes have been sequenced until today. All ciliate mitochondrial genomes are linear.
A Tatarenkov, AE Pritchard, C Chantangsi, CE Popescu, CF Brunk, CM Strüder-Kypke, D Barth, D Barth, Dana Barth, DH Lunt, DR Smith, E Przybos, E Przybos, E Przybos, EL Clare, F Catania, F Wright, FN Martin, G Bernardi, G Burger, G Marais, H Jiang, HMW Salim, JA Eisen, JM Aury, K Tamura, KJ Verstrepen, M Berriman, MM Moradian, MW Gray, N Galtier, N Goldman, P Bois, P Jordan, P Stothard, RM De Graaf, S Karlin, SF Altschul, SI Fokin, TA Hall, Thomas U Berendonk, TM Lowe, UV Wesley, X Chen, XJ Min, Y Tsukii, Z Antal, Z Yang, Z Zhang   +48 more
core   +3 more sources