Proton-motive force and the motile behavior of Bacillus subtilis |
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| Authors: | M. H. De Jong C. Van der Drift G. D. Vogels |
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| Affiliation: | (1) Laboratory of Microbiology, Faculty of Science, University of Nijmegen, Nijmegen, The Netherlands |
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| Abstract: | Changes in the proton-motive force cause a transient change in the motile behavior of Bacillus subtilis cells. Both an increase and a decrease in the proton-motive force cause transient tumbling. Simultaneous decrease of proton-motive force and increase of attractant concentration lessens the response toward the attractant. A simultaneous increase of proton-motive force and increase of attractant concentration prolonges the response toward attractant. A hypothesis explaining the various effects is given.Abbreviations KT medium potassium taxis medium - NaT medium sodium taxis medium - HT medium acidic taxis medium - OHT medium alkaline taxis medium - DNP 2,4-dinitrophenol |
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| Keywords: | Bacillus subtilis Motility Chemotaxis Chemoreceptor Tumble generator Proton-motive force |
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