Results 131 to 140 of about 76,591 (300)
Leishmania promastigote parasites have a flagellum, which protrudes from the flagellar pocket at the cell anterior, yet, surprisingly, have homologs of many flagellum attachment zone (FAZ) proteins – proteins used in the related Trypanosoma species to ...
R. Wheeler, J. Sunter, K. Gull
semanticscholar +1 more source
Structure and behaviour of the sperm terminal filament [PDF]
Light- and electron-microscopic observations of Ciona and Lytechinus spermatozoa show a thin terminal filament at the distal end. The terminal filament is 5-6 microns long and contains the two central microtubules and a variable number of A-tubule ...
Brokaw, C. J., Omoto, C. K.
core
Flagellar Synchronization Through Direct Hydrodynamic Interactions [PDF]
Microscale fluid flows generated by ensembles of beating eukaryotic flagella are crucial to fundamental processes such as development, motility and sensing.
Blake+38 more
core +5 more sources
Switching of swimming modes in Magnetospirillium gryphiswaldense [PDF]
The microaerophilic magnetotactic bacterium Magnetospirillum gryphiswaldense swims along magnetic field lines using a single flagellum at each cell pole. It is believed that this magnetotactic behavior enables cells to seek optimal oxygen concentration with maximal efficiency. We analyse the trajectories of swimming M. gryphiswaldense cells in external
arxiv +1 more source
Flagellum inheritance in Trypanosoma brucei requires a kinetoplastid-specific protein phosphatase
Trypanosoma brucei causes sleeping sickness in humans and nagana in cattle in sub-Saharan Africa and alternates between its mammalian hosts and its insect vector, the tsetse fly. T.
Qing Zhou, G. Dong, Ziyin Li
semanticscholar +1 more source
The efficiency of propulsion by a rotating flagellum [PDF]
[At very low Reynolds number, the regime in which fluid dynamics is governed by Stokes equations, a helix that translates along its axis under an external force but without an external torque will necessarily rotate. By the linearity of the Stokes equations, the same helix that is caused to rotate due to an external torque will necessarily ...
openaire +3 more sources
Thermodynamic Aspects of Flagellar Activity [PDF]
1. The frequencies of the beat of cilia and flagella from various organisms have been determined at temperatures in the range 5-35°C. 2. Values of the activation enthalpy (ΔH{ddagger}, kcal./mole) and activation entropy (ΔS{ddagger}, e.u.) derived ...
Holwill, M. E., Sleigh, M. A.
core
Cell body rocking is a dominant mechanism for flagellar synchronization in a swimming alga
The unicellular green algae Chlamydomonas swims with two flagella, which can synchronize their beat. Synchronized beating is required to swim both fast and straight.
Friedrich, Benjamin M+3 more
core +1 more source
Alternative mechanism for bacteriophage adsorption to the motile bacterium Caulobacter crescentus [PDF]
2D and 3D cryo-electron microscopy, together with adsorption kinetics assays of ϕCb13 and ϕCbK phage-infected Caulobacter crescentus, provides insight into the mechanisms of infection.
Ackermann+45 more
core +4 more sources
Movement of the Flagella of Polytoma Uvella [PDF]
1. Dark-field photographic records of the wave patterns of moving flagella have been made using multiple-flash exposures at flash rates of up to 50 per sec.
Brokaw, C. J.
core