Chemotaxis Response to Redox Potential

April 24, 2016 | Illustration Lab

Response of S. typhimurium to mixed Cys / CySS solutions.
Dependence of the initial amplitude of the FRET response, ΔFRETI, of WT S. typhimurium LT2 to the redox potential expressed in units of log Q, where Q is the reaction quotient of Cys / CySS interconversion. A Hill equation fit (with Hill coefficient of 2 and half-maximum of 51) is shown for guidance of the eye. The grey line at 0 divides attractant (negative) and repellent (positive) responses. Artist representations of a bacterium exhibiting an attractant response (“run”) and repellent response (“tumble”) are shown on the right.

Source: Rosier BT, Lazova MD (2016) Dose-Response Analysis of Chemotactic Signaling Response in Salmonella typhimurium LT2 upon Exposure to Cysteine / Cystine Redox Pair. PLoS ONE 11(4): e0152815. doi:10.1371/journal.pone.0152815 (Link to Article)

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Chemotaxis Response to Redox Potential
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