Pseudomonas aeruginosa strain PAO1 was attracted by ethylene. Assays of a set of mutants containing deletions in 26 potential methyl-accepting chemotaxis protein genes revealed that tlpQ (PA2654) encodes the chemoreceptor for positive chemotaxis to ethylene. Pseudomonas fluorescens, Pseudomonas putida, and Pseudomonas syringae strains also exhibited positive chemotaxis toward ethylene.
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Kim et al. (2007) studied this question.
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