ISSN:
1432-072X
Keywords:
Chemotaxis
;
Chemoreceptor
;
Motility
;
Bacillus subtilis
;
Aerotaxis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Quantitative measurement of positive chemotaxis inBacillus subtilis was performed by means of adaption of the procedure used in studies withEscherichia coli. The motility ofB. subtilis was optimal in the presence of an exogeneous energy source and a nonionic detergent,e. g. Tween 80 or Brij-36. B. subtilis is chemotactic toward the commonly occurringL-amino acids except arginine, lysine, aspartate and glutamate. No chemotactic response was observed towardD-amino acids. Threshold, optimal response and peak concentration were determined. Chemotaxis toward glutamine was optimal at pH 6-7 and a temperature of 32°C. The maximum response toward a particular attractant was presumably influenced by the aerotactic behavior ofB. subtilis.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00590165
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