Results 41 to 50 of about 60,935 (266)
Engineered single‐ and multi‐cell chemotaxis pathways in E. coli
Molecular Systems Biology, 2009 We have engineered the chemotaxis system of Escherichia coli to respond to molecules that are not attractants for wild‐type cells. The system depends on an artificially introduced enzymatic activity that converts the target molecule into a ligand for an ...
Shalom D Goldberg +3 more
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Insights into the control and consequences of breathing adjustments in fishes-from larvae to adults
Frontiers 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
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Guinea Pig Oxygen-Sensing and Carotid Body Functional Properties
Frontiers in Physiology, 2017 Mammals have developed different mechanisms to maintain oxygen supply to cells in response to hypoxia. One of those mechanisms, the carotid body (CB) chemoreceptors, is able to detect physiological hypoxia and generate homeostatic reflex responses ...
Elvira Gonzalez-Obeso +12 more
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Anaesthetic Management of Chemodectoma Excision [PDF]
The Indian Anaesthetists' Forum, 2007 Carotid body tumours (CBTs) or chemodectoma are rare non- chromaffin paragangliomas arising from the chemoreceptor cells found at the carotid bifurcation.
Dr. Babita Gupta +1 more
doaj
Mechanism of bidirectional thermotaxis in Escherichia coli. [PDF]
, 2017 In bacteria various tactic responses are mediated by the same cellular pathway, but sensing of physical stimuli remains poorly understood. Here, we combine an in-vivo analysis of the pathway activity with a microfluidic taxis assay and mathematical ...
Erickstad, Michael +8 more
core +2 more sources
Magnetic resonance and computed tomography imaging of a carotid body tumor in a dog [PDF]
, 2012 A 5-year-old castrated male Labrador Retriever was presented to a referring veterinarian for a swelling in the neck region. Based on the results of histopathology, a carotid body tumor, was diagnosed.
De Cock, Hilde +4 more
core +2 more sources
The type IV pilus chemoreceptor PilJ controls chemotaxis of one bacterial species towards another. [PDF]
PLoS BiolBacteria live in social communities, where the ability to sense and respond to interspecies and environmental signals is critical for survival. We previously showed the pathogen Pseudomonas aeruginosa detects secreted peptides from bacterial competitors ...
Yarrington KD, Shendruk TN, Limoli DH.
europepmc +2 more sources
Cloning of the C-terminal cytoplasmic fragment of the tar protein and effects of the fragment on chemotaxis of Escherichia coli [PDF]
, 1988 A gene encoding only the C-terminal portion of the receptor-transducer protein Tar of Escherichia coli was constructed. The gene product was detected and localized in the cytoplasmic fraction of the cell by immunoblotting with anti-Tar antibodies.
Mutoh, Norihiro +2 more
core +1 more source
Frontiers in Microbiology, 2017 Swarming motility is the rapid and coordinated multicellular migration of bacteria across a moist surface. During swarming, bacterial cells exhibit increased resistance to multiple antibiotics, a phenomenon described as adaptive or transient resistance ...
Oihane Irazoki +2 more
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Biomolecules, 2020 Effective metabolism is highly dependent on a narrow therapeutic range of oxygen. Accordingly, low levels of oxygen, or hypoxia, are one of the most powerful inducers of gene expression, metabolic changes, and regenerative processes, including ...
Amir Hadanny, Shai Efrati
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