Results 71 to 80 of about 79,418 (282)

Bending Moments in Free-Swimming Flagella [PDF]

open access: yes, 1970
The bending of a flagellum, such as the flagellum which forms the tail of a sea-urchin spermatozoon, is the result of active mechanochemical processes occurring within the flagellum itself, which cause it to bend actively throughout its length (Gray ...
Brokaw, C. J.
core  

Proximity-Dependent Biotinylation and Identification of Flagellar Proteins in Trypanosoma cruzi

open access: yesmSphere, 2023
The flagellated kinetoplastid protozoan and causative agent of human Chagas disease, Trypanosoma cruzi, inhabits both invertebrate and mammalian hosts over the course of its complex life cycle. In these disparate environments, T.
Madalyn M. Won   +2 more
doaj   +1 more source

The Periplasmic Flagellum of Spirochetes

open access: yesMicrobial Physiology, 2004
Although spirochete periplasmic flagella have many features similar to typical bacterial flagella, they are unique in their structure and internal periplasmic location. This location provides advantages for pathogenic spirochetes to enter and to adapt in the appropriate host, and to penetrate through matrices that inhibit the motility of most other ...
openaire   +3 more sources

Flagella bending affects macroscopic properties of bacterial suspensions

open access: yes, 2016
To survive in harsh conditions, motile bacteria swim in complex environment and respond to the surrounding flow. Here we develop a PDE model describing how the flagella bending affects macroscopic properties of bacterial suspensions.
Aranson, Igor   +3 more
core   +2 more sources

Isolation of the Buchnera aphidicola flagellum basal body complexes from the Buchnera membrane.

open access: yesPLoS ONE, 2021
Buchnera aphidicola is an intracellular bacterial symbiont of aphids and maintains a small genome of only 600 kbps. Buchnera is thought to maintain only genes relevant to the symbiosis with its aphid host.
Matthew J Schepers   +3 more
doaj   +1 more source

BOH1 cooperates with Polo-like kinase to regulate flagellum inheritance and cytokinesis initiation in Trypanosoma brucei

open access: yesJournal of Cell Science, 2019
Trypanosoma brucei possesses a motile flagellum that determines cell morphology and the cell division plane. Inheritance of the newly assembled flagellum during the cell cycle is controlled by the Polo-like kinase homolog TbPLK, which also regulates ...
Kieu T. M. Pham   +3 more
semanticscholar   +1 more source

Irradiation of Sperm Tails by Laser Microbeam [PDF]

open access: yes, 1969
1. Sea-urchin and starfish sperm tails were irradiated at pre-selected points along the flagellum and at pre-selected phases of the beat cycle by means of a pulsed ruby laser microbeam. Multiple-exposure dark-field photomicrographs were taken immediately
Goldstein, Stuart F.
core  

In-phase and anti-phase flagellar synchronization by waveform compliance and basal coupling

open access: yesNew Journal of Physics, 2017
We present a theory of flagellar synchronization in the green alga Chlamydomonas , using full treatment of flagellar hydrodynamics and measured beat patterns.
Gary S Klindt   +3 more
doaj   +1 more source

Direction of flagellum beat propagation is controlled by proximal/distal outer dynein arm asymmetry

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance The motile flagellum/cilium is found across eukaryotic life, and it performs critical functions in many organisms including humans. A fundamental requirement for a motile flagellum is that it must undergo the appropriate waveform for its ...
Beatrice Freya Lucy Edwards   +5 more
semanticscholar   +1 more source

Modelling the Mechanics and Hydrodynamics of Swimming E. coli

open access: yes, 2015
The swimming properties of an E. coli-type model bacterium are investigated by mesoscale hy- drodynamic simulations, combining molecular dynamics simulations of the bacterium with the multiparticle particle collision dynamics method for the embedding ...
Gompper, Gerhard   +3 more
core   +1 more source

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