Results 21 to 30 of about 9,957 (161)

Insights into the control and consequences of breathing adjustments in fishes-from larvae to adults

open access: yesFrontiers in Physiology, 2023
Adjustments of ventilation in fishes to regulate the volume of water flowing over the gills are critically important responses to match branchial gas transfer with metabolic needs and to defend homeostasis during environmental fluctuations in O2 and/or ...
Steve F. Perry   +2 more
doaj   +1 more source

Prevalence and Specificity of Chemoreceptor Profiles in Plant-Associated Bacteria

open access: yesmSystems, 2021
Chemosensory pathways are among the most abundant prokaryotic signal transduction systems, allowing bacteria to sense and respond to environmental stimuli. Signaling is typically initiated by the binding of specific molecules to the ligand binding domain
Claudia Sanchis-López   +8 more
doaj   +1 more source

Diverse Sensory Repertoire of Paralogous Chemoreceptors Tlp2, Tlp3, and Tlp4 in Campylobacter jejuni

open access: yesMicrobiology Spectrum, 2022
Campylobacter jejuni responds to extracellular stimuli via transducer-like chemoreceptors (Tlps). Here, we describe receptor-ligand interactions of a unique paralogue family of dCache_1 (double Calcium channels and chemotaxis) chemoreceptors: Tlp2, Tlp3,
Taha   +9 more
doaj   +1 more source

The Unconventional Cytoplasmic Sensing Mechanism for Ethanol Chemotaxis in Bacillus subtilis

open access: yesmBio, 2020
Motile bacteria sense chemical gradients using chemoreceptors, which consist of distinct sensing and signaling domains. The general model is that the sensing domain binds the chemical and the signaling domain induces the tactic response.
Payman Tohidifar   +7 more
doaj   +1 more source

The dCache Chemoreceptor TlpA of Helicobacter pylori Binds Multiple Attractant and Antagonistic Ligands via Distinct Sites

open access: yesmBio, 2021
The Helicobacter pylori chemoreceptor TlpA plays a role in dampening host inflammation during chronic stomach colonization. TlpA has a periplasmic dCache_1 domain, a structure that is capable of sensing many ligands; however, the only characterized TlpA ...
Kevin S. Johnson   +9 more
doaj   +1 more source

Identification and Characterization of Bacterial Chemoreceptors Using Quantitative Capillary and Gradient Plate Chemotaxis Assays

open access: yesBio-Protocol, 2016
Bacterial chemotaxis is a motility-based response that biases cell movement toward beneficial molecules, called attractants, and away from harmful molecules, also known as repellents.
Jose Reyes-Darias   +4 more
doaj   +1 more source

Chemotaxis of the Human Pathogen Pseudomonas aeruginosa to the Neurotransmitter Acetylcholine

open access: yesmBio, 2022
Acetylcholine is a central biological signal molecule present in all kingdoms of life. In humans, acetylcholine is the primary neurotransmitter of the peripheral nervous system; it mediates signal transmission at neuromuscular junctions.
Miguel A. Matilla   +7 more
doaj   +1 more source

Concentration Dependent Effect of Plant Root Exudates on the Chemosensory Systems of Pseudomonas putida KT2440

open access: yesFrontiers in Microbiology, 2019
Plant root colonization by rhizobacteria can protect plants against pathogens and promote plant growth, and chemotaxis to root exudates was shown to be an essential prerequisite for efficient root colonization.
Diana López-Farfán   +3 more
doaj   +1 more source

The dCache Domain of the Chemoreceptor Tlp1 in Campylobacter jejuni Binds and Triggers Chemotaxis toward Formate

open access: yesmBio, 2023
Chemotaxis is an important virulence factor in some enteric pathogens, and it is involved in the pathogenesis and colonization of the host. However, there is limited knowledge regarding the environmental signals that promote chemotactic behavior and the ...
Jingjing Duan   +7 more
doaj   +1 more source

Contribution of the Lung to the Genesis of Cheyne‐Stokes Respiration in Heart Failure: Plant Gain Beyond Chemoreflex Gain and Circulation Time

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background The contribution of the lung or the plant gain (PG; ie, change in blood gases per unit change in ventilation) to Cheyne‐Stokes respiration (CSR) in heart failure has only been hypothesized by mathematical models, but never been directly ...
Alberto Giannoni   +12 more
doaj   +1 more source

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