Chemotaxis toward amino acids by Bdellovibrio bacteriovorus.
Chemotaxis toward amino acids by Bdellovibrio bacteriovorous strain UKi2 was studied by the capillary technique of Adler (J. Gen. Microbiol. 74:77-91, 1973). Chemotaxis was shown to be optimal when the capillaries were incubated at between 15 and 40 degrees C for 30 min; the optimal pH was between 7.0 and 8.2. The chemotactic response was proportional to the density of the suspension of bdellovibrios up to a density of 10(8) cells/ml. B. bacteriovorus was attracted to L-asparagine, L-cysteine, L-glutamine, glycine, L-histidine, L-lysine, and L-threonine. The possible roles of chemotaxis in the life of B. bacteriovorus are discussed.
D000596:Amino Acids; D001216:Asparagine; D001501:Bdellovibrio / Q000502:physiology*; D002633:Chemotaxis; D003545:Cysteine; D005973:Glutamine; D005998:Glycine; D006639:Histidine; D006863:Hydrogen-Ion Concentration; D008239:Lysine; D013696:Temperature; D013912:Threonine
D000596:Amino Acids; D005973:Glutamine; D013912:Threonine; D006639:Histidine; D001216:Asparagine; D008239:Lysine; D003545:Cysteine; D005998:Glycine