Results 81 to 90 of about 76,591 (300)

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

Difference in the chemotaxis between monotrichous and peritrichous bacteria clarified by a numerical simulation and observation

open access: yesJournal of Biomechanical Science and Engineering, 2022
We investigate difference in the chemotactic behavior between peritrichous bacteria (Salmonella typhimurium SJW1103) and monotrichous bacteria (Vibrio alginolyticus YM4).
Tonau NAKAI   +2 more
doaj   +1 more source

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  

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

Inhibition and relaxation of sea urchin sperm flagella by vanadate [PDF]

open access: yes, 1980
Direct measurements of the stiffness (elastic bending resistance) of demembranated sera urchin sperm flagella were made in the presence of MgATP2- and vanadate.
Okuno, Makoto
core   +3 more sources

Doing more with less: the flagellar end piece enhances the propulsive effectiveness of human spermatozoa [PDF]

open access: yesPhys. Rev. Fluids 5, 073101 (2020), 2019
Spermatozoa self-propel by propagating bending waves along a predominantly active elastic flagellum. The organized structure of the "9 + 2" axoneme is lost in the most-distal few microns of the flagellum, and therefore this region is unlikely to have the ability to generate active bending; as such it has been largely neglected in biophysical studies ...
arxiv   +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

Phylogenomic Analyses of Bradyrhizobium Reveal Uneven Distribution of the Lateral and Subpolar Flagellar Systems, Which Extends to Rhizobiales

open access: yesMicroorganisms, 2019
Dual flagellar systems have been described in several bacterial genera, but the extent of their prevalence has not been fully explored. Bradyrhizobium diazoefficiens USDA 110T possesses two flagellar systems, the subpolar and the lateral flagella.
Daniel Garrido-Sanz   +9 more
doaj   +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  

Pseudomonas aeruginosa flagellum is critical for invasion, cutaneous persistence and induction of inflammatory response of skin epidermis

open access: yesVirulence, 2018
Pseudomonas aeruginosa, an opportunistic pathogen involved in skin and lung diseases, possesses numerous virulence factors, including type 2 and 3 secretion systems (T2SS and T3SS) and its flagellum, whose functions remain poorly known during cutaneous ...
Magali Garcia   +9 more
semanticscholar   +1 more source

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