Results 31 to 40 of about 25,250 (275)

Noopept protects ciliates Paramecium сaudatum cells from the toxic effects of heavy metal compounds

open access: yesФармакокинетика и Фармакодинамика, 2022
Background. The dipeptide drug Noopept, created at the Zakusov Institute of Pharmacology, has a wide range of pharmacological actions, including cytoprotective one.
O. V. Karpukhina   +2 more
doaj   +1 more source

Calmodulin in Paramecium: Focus on Genomic Data

open access: yesMicroorganisms, 2022
Calcium (Ca2+) is a universal second messenger that plays a key role in cellular signaling. However, Ca2+ signals are transduced with the help of Ca2+-binding proteins, which serve as sensors, transducers, and elicitors. Among the collection of these Ca2+
Eduardo Villalobo   +2 more
doaj   +1 more source

Optofluidic ptychography on a chip [PDF]

open access: yes, 2021
We report the implementation of a fully on-chip, lensless microscopy technique termed optofluidic ptychography. This imaging modality complements the miniaturization provided by microfluidics and allows the integration of ptychographic microscopy into various lab-on-a-chip devices. In our prototype, we place a microfluidic channel on the top surface of
arxiv   +1 more source

Bioremediation of heavy metals using a novel species of ciliate Paramecium multimicronucleatum isolated from industrial wastewater

open access: yesMaterials Research Express, 2023
The introduction of heavy metals by industries in the aquatic ecosystem is a threatening alarm for living organisms. Bioremediation is an eco-friendly and inexpensive technique as an alternative to chemical methods for wastewater treatment.
Itrat Zahra   +9 more
doaj   +1 more source

Inertial self-propulsion of spherical microswimmers by rotation-translation coupling [PDF]

open access: yesPhys. Rev. Fluids 4, 023101 (2019), 2017
We study swimming of small spherical particles who regulate fluid flow on their surface by applying tangential squirming strokes. We derive translational and rotational velocities for any given stroke which is not restricted by axial symmetry as assumed usually.
arxiv   +1 more source

The actin multigene family of Paramecium tetraurelia

open access: yesBMC Genomics, 2007
Background A Paramecium tetraurelia pilot genome project, the subsequent sequencing of a Megabase chromosome as well as the Paramecium genome project aimed at gaining insight into the genome of Paramecium.
Wagner Erika   +5 more
doaj   +1 more source

The Obligate Symbiont “Candidatus Megaira polyxenophila” Has Variable Effects on the Growth of Different Host Species

open access: yesFrontiers in Microbiology, 2020
“Candidatus Megaira polyxenophila” is a recently described member of Rickettsiaceae which comprises exclusively obligate intracellular bacteria. Interestingly, these bacteria can be found in a huge diversity of eukaryotic hosts (protist, green algae ...
Chiara Pasqualetti   +6 more
doaj   +1 more source

A porous prolate-spheroidal model for ciliated micro-organisms [PDF]

open access: yes, 1977
A fluid-mechanical model is developed for representing the mechanism of propulsion of a finite ciliated micro-organism having a prolate-spheroidal shape.
Keller, Stuart R., Wu, Theodore Y.
core   +1 more source

Evolutionary dynamics of a conserved sequence motif in the ribosomal genes of the ciliate Paramecium

open access: yesBMC Evolutionary Biology, 2010
Background In protozoa, the identification of preserved motifs by comparative genomics is often impeded by difficulties to generate reliable alignments for non-coding sequences.
Lynch Michael, Catania Francesco
doaj   +1 more source

Phagosome maturation in unicellular eukaryote Paramecium: the presence of RILP, Rab7 and LAMP-2 homologues

open access: yesEuropean Journal of Histochemistry, 2009
Phagosome maturation is a complex process enabling degradation of internalised particles. Our data obtained at the gene, protein and cellular level indicate that the set of components involved in this process and known up to now in mammalian cells is ...
E Wyroba, L Surmacz, M Osinska, J Wiejak
doaj   +1 more source

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