Results 41 to 50 of about 25,504 (261)

Phosphoproteins associated with cyclic nucleotide stimulation of ciliary motility in Paramecium [PDF]

open access: yes, 1990
Permeabilized, MgATP-reactivated cells of Paramecium (models) respond to cyclic AMP and cyclic GMP by increasing forward swimming speed. In association with the motile response, cyclic AMP and 8-bromo-cyclic GMP (8-Br-cyclic GMP) stimulated protein ...
Bonini, Nancy M., Nelson, David L.
core  

Fruit Flies Provide New Insights in Low-Radiation Background Biology at the INFN Underground Gran Sasso National Laboratory (LNGS) [PDF]

open access: yes, 2018
Deep underground laboratories (DULs) were originally created to host particle, astroparticle or nuclear physics experiments requiring a low-background environment with vastly reduced levels of cosmic-ray particle interference. More recently, the range of
Cenci, G.   +5 more
core   +1 more source

A signal transduction blind spot: the function of adenylyl cyclase transmembrane domains

open access: yesThe FEBS Journal, EarlyView.
Transmembrane adenylyl cyclases (tmACs) are essential for synthesising the universal second messenger cyclic AMP. All tmACs share a common topology that includes a large 12‐helix transmembrane (TM) domain. This domain accounts for ~ 35% of the coding sequence but its function is still an open question.
Ryan S. Dowsell, Matthew G. Gold
wiley   +1 more source

Pemanfaatan Ekstrak Kulit Ubi Jalar Ungu (Ipomea batatas L.) sebagai Bahan Pewarna Alternatif untuk Pengamatan Mikroskopis Paramecium sp. dalam Pembelajaran Biologi

open access: yesAl-Hayat, 2019
Purple sweet potato (Ipomea batatas L.) is a tuber that has purple meat and skin. The purple color of purple sweet potato is usually used by the community as a food coloring, while the sweet potato skin is considered only waste and disposed of.
Dewi Fatimatuzahro   +2 more
doaj   +1 more source

Gravitaxis in Paramecium

open access: yesBiological Sciences in Space, 1988
This review briefly describes four physical and two physiological hypotheses that have been proposed on the mechanism of negative gravitaxis or geotaxis of Paramecium. In the hydrostatic hypothesis (Verworn, 1889), the density of the rear part of Paramecium is greater than that of the rest of the organism so that the body axis is tilted anterior upward
Keiichi Takahashi, Akira Murakami
openaire   +2 more sources

Temperature and Resources Interact to Affect Transmission via Host Foraging Rate and Susceptibility

open access: yesEcology Letters, Volume 28, Issue 6, June 2025.
Environmental conditions such as temperature and resource availability can shape disease transmission by altering contact rates and/or the probability of infection given contact. We develop mechanistic models and fit them to experimental data to uncover how temperature and resources jointly affect transmission of fungal parasites (Metschnikowia ...
Daniel C. Suh   +2 more
wiley   +1 more source

Surrogate GPR139 Agonists Reverse Short‐Term Startle Habituation Impairment in Larval Zebrafish

open access: yesThe FASEB Journal, Volume 39, Issue 10, 31 May 2025.
Startled habituation deficit is a common cognitive symptom of schizophrenia patients. In blocks of repetitive startle stimuli delivery, MK‐801‐induced larval zebrafish showed a non‐habituating behavior to startle stimuli. A recovery on startle habituation occurred with co‐exposure of MK‐801 and GPR139 agonists.
Teck Fong Kow   +4 more
wiley   +1 more source

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

open access: yesPLoS 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   +13 more
doaj   +1 more source

When the path is never shortest: a reality check on shortest path biocomputation

open access: yes, 2017
Shortest path problems are a touchstone for evaluating the computing performance and functional range of novel computing substrates. Much has been published in recent years regarding the use of biocomputers to solve minimal path problems such as route ...
A Adamatzky   +28 more
core   +1 more source

New European Stands of Paramecium pentaurelia, Paramecium septaurelia, and Paramecium dodecaurelia, Genetic and Molecular Studies

open access: yesFolia Biologica, 2005
New stands of rare species of the Paramecium aurelia complex were found in Europe, i.e. P. pentaurelia and P. dodecaurelia in Italy and P. septaurelia in Germany. The species were identified by mating reactions with the standard strains of each species.
PRZYBOS E   +5 more
openaire   +4 more sources

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