2017
DOI: 10.1128/msphere.00182-17
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Behavioral Effects of a Chemorepellent Receptor Knockout Mutation in Tetrahymena thermophila

Abstract: Although many single-cell eukaryotes have served as classical model systems for chemosensory studies for decades, the major emphasis has been on chemoattraction and no chemorepellent receptor gene has been identified in any unicellular eukaryote. This is the first description of a gene that codes for a chemorepellent receptor in any protozoan. Integration of both depolarizing chemorepellent pathways and hyperpolarizing chemoattractant pathways is as important to chemoresponses of motile unicells as excitatory … Show more

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“…The unicellular eukaryote Trichomonas vaginalis chemorepels from toxic agents such as metronidazole, ketoconazole, and miconazole ( Sugarman and Mummaw, 1988 ). In the presence of a chemorepellent, such as conditioned supernatant factor (CSF), unicellular eukaryotes such as Tetrahymena and Paramecium swim backward ( Rodgers et al, 2008 ; Plattner, 2015 ; Zou and Hennessey, 2017 ). In fungi, chemorepulsion can direct filament growth and mat formation ( Karunanithi et al, 2012 ).…”
Section: Chemorepulsion Can Cause Cells To Move Away From a Signalmentioning
confidence: 99%
“…The unicellular eukaryote Trichomonas vaginalis chemorepels from toxic agents such as metronidazole, ketoconazole, and miconazole ( Sugarman and Mummaw, 1988 ). In the presence of a chemorepellent, such as conditioned supernatant factor (CSF), unicellular eukaryotes such as Tetrahymena and Paramecium swim backward ( Rodgers et al, 2008 ; Plattner, 2015 ; Zou and Hennessey, 2017 ). In fungi, chemorepulsion can direct filament growth and mat formation ( Karunanithi et al, 2012 ).…”
Section: Chemorepulsion Can Cause Cells To Move Away From a Signalmentioning
confidence: 99%