Results 51 to 60 of about 42,607 (218)

A twist in the tail

open access: yeseLife, 2014
Lipopolysaccharide molecules released by the bacteria Vibrio fischeri when it rotates its flagella prompts its host, the Hawaiian bobtail squid, to prepare for its arrival.
Karen Guillemin, Annah S Rolig
doaj   +1 more source

Transcriptome analysis of the hepatopancreas from the Litopenaeus vannamei infected with different flagellum types of Vibrio alginolyticus strains

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
Vibrio alginolyticus, one of the prevalently harmful Vibrio species found in the ocean, causes significant economic damage in the shrimp farming industry. Its flagellum serves as a crucial virulence factor in the invasion of host organisms.
Jingwen Zhang   +21 more
doaj   +1 more source

Entropy driven formation of a chiral liquid crystalline phase of helical filaments [PDF]

open access: yes, 2005
We study the liquid crystalline phase behavior of a concentrated suspension of helical flagella isolated from {\it Salmonella typhimurium}. Flagella are prepared with different polymorphic states, some of which have a pronounced helical character while others assume a rod-like shape. We show that the static phase behavior and dynamics of chiral helices
arxiv   +1 more source

Flagellar number governs bacterial spreading and transport efficiency [PDF]

open access: yesScience Advances 4, eaar6425 (2018), 2019
Peritrichous bacteria synchronize and bundle their flagella to actively swim while disruption of the bundle leads to tumbling. It is still not known whether the number of flagella represents an evolutionary adaptation towards optimizing bacterial navigation. Here, we study the swimming dynamics of differentially flagellated Bacillus subtilis strains in
arxiv   +1 more source

Roles of end‐binding 1 protein and gamma‐tubulin small complex in cytokinesis and flagella formation of Giardia lamblia

open access: yesMicrobiologyOpen, 2019
Giardia lamblia is a unicellular organism with two nuclei, a median body, eight flagella, and an adhesive disk. γ‐Tubulin is a microtubule (MT)‐nucleating protein that functions in the γ‐tubulin small complex (γ‐TuSC) in budding yeast.
Juri Kim, Soon‐Jung Park
doaj   +1 more source

Reduced Infection Efficiency of Phage NCTC 12673 on Non-Motile Campylobacter jejuni Strains Is Related to Oxidative Stress

open access: yesViruses, 2021
Campylobacter jejuni is a Gram-negative foodborne pathogen that causes diarrheal disease and is associated with severe post-infectious sequelae. Bacteriophages (phages) are a possible means of reducing Campylobacter colonization in poultry to prevent ...
Jessica C. Sacher   +6 more
doaj   +1 more source

Shapes enhancing the propulsion of multiflagellated helical microswimmers [PDF]

open access: yesarXiv, 2021
In this paper we are interested in optimizing the shape of multi-flagellated helical microswimmers. Mimicking the propagation of helical waves along the flagella, they self-propel by rotating their tails. The swimmer's dynamics is computed using the Boundary Element Method, implemented in the open source Matlab library $Gypsilab$. We exploit a Bayesian
arxiv  

An Overview of Helicobacter pylori Survival Tactics in the Hostile Human Stomach Environment

open access: yesMicroorganisms, 2021
Helicobacter pylori is well established as a causative agent for gastritis, peptic ulcer, and gastric cancer. Armed with various inimitable virulence factors, this Gram-negative bacterium is one of few microorganisms that is capable of circumventing the ...
Yi Ying Cheok   +6 more
doaj   +1 more source

IFT trains in different stages of assembly queue at the ciliary base for consecutive release into the cilium

open access: yeseLife, 2017
Intraflagellar transport (IFT) trains, multimegadalton assemblies of IFT proteins and motors, traffic proteins in cilia. To study how trains assemble, we employed fluorescence protein-tagged IFT proteins in Chlamydomonas reinhardtii.
Jenna L Wingfield   +14 more
doaj   +1 more source

Binding of Phage-Encoded FlaGrab to Motile Campylobacter jejuni Flagella Inhibits Growth, Downregulates Energy Metabolism, and Requires Specific Flagellar Glycans

open access: yesFrontiers in Microbiology, 2020
Many bacterial pathogens display glycosylated surface structures that contribute to virulence, and targeting these structures is a viable strategy for pathogen control.
Jessica C. Sacher   +11 more
doaj   +1 more source

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