Relation between chemotaxis and consumption of amino acids in bacteria
Chemotaxis enables bacteria to navigate chemical gradients in their environment, accumulating toward high concentrations of attractants and avoiding high concentrations of repellents. Although finding nutrients is likely to be an important function of bacterial chemotaxis, not all characterized attr...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
24 April 2015
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| In: |
Molecular microbiology
Year: 2015, Volume: 96, Issue: 6, Pages: 1272-1282 |
| ISSN: | 1365-2958 |
| DOI: | 10.1111/mmi.13006 |
| Online Access: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1111/mmi.13006 Verlag, kostenfrei, Volltext: http://onlinelibrary.wiley.com/doi/10.1111/mmi.13006/abstract 
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| Author Notes: | Yiling Yang, Abiola M. Pollard, Carolin Höfler, Gernot Poschet, Markus Wirtz, Rüdiger Hell, Victor Sourjik |
| Summary: | Chemotaxis enables bacteria to navigate chemical gradients in their environment, accumulating toward high concentrations of attractants and avoiding high concentrations of repellents. Although finding nutrients is likely to be an important function of bacterial chemotaxis, not all characterized attractants are nutrients. Moreover, even for potential nutrients, the exact relation between the metabolic value of chemicals and their efficiency as chemoattractants has not been systematically explored. Here we compare the chemotactic response of amino acids with their use by bacteria for two well-established models of chemotactic behavior, Escherichia coli and Bacillus subtilis. We demonstrate that in E. coli chemotaxis toward amino acids indeed strongly correlates with their utilization. However, no such correlation is observed for B. subtilis, suggesting that in this case, the amino acids are not followed because of their nutritional value but rather as environmental cues. |
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| Item Description: | Gesehen am 09.05.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1365-2958 |
| DOI: | 10.1111/mmi.13006 |