Chemotaxis mutants

Aswad, D. and Koshland, D.E., Jr. (1975). Isolation, characterization and complementation of Salmonella typhimurium chemotaxis mutants. J. Mol. Biol. 97, 225-235. 

Kondoh, H. (1980). Tumbling chemotaxis mutants of Escherichia coli Possible gene-dependent effect of methionine starvation./. Bacteriol. 142, 527-534. 

Masduki, A., Nakamura, J., Ohga, T, Umezald, R., Kato, J. and Ohtake, H. (1995). Isolation and characterization of chemotaxis mutants and genes of Pseudomonas aeruginosa. J. Bacteriol. 177,948-952. 

Ravid, S. and Eisenbach, M. (1983). Correlation between bacteriophage chi adsorption and mode of flagellar rotation of Escherichia coli chemotaxis mutants. /. Bacteriol. 154, 604-611. 

Andre, E., Brink, M., Gerisch, G., Isenberg, G., Noegel, A., Schleicher, M., Segall, J.E., Wallraff, E. (1989). A Dictyostelium mutant deficient in severin, an F-actin fragmenting protein, shows normal motility and chemotaxis. J. Cell Biol. 108, 985-995. 

A recent experiment compared for the first time pollutant degradation by chemotactic bacteria and nonchemotactic mutants [54]. The result suggested an important role of chemotaxis in the bioremediation of contaminated soils. In a heterogeneous system, in which naphthalene was supplied from a microcapillary, a 90% reduction in the initial amount of naphthalene took six hours with the chemotactic wild-type Pseudomonas putida PpG7, while a similar reduction with either a chemotaxis-negative or a nonmotile mutant strain took about five times longer. Only the systems inoculated with the chemotactic strain exhibited degradation rates in excess of the rate of naphthalene diffusion from the... 

Oosawa, K. Hess, J.R Simon, M.L Mutants defective in bacterial chemotaxis show modified protein phosphorylation. Cell, 53, 89-96 (1988)... 

Andre E, Brink M, Gerisch G et al. A Dictyostdium mutant deficient in severin, an F-actin fragmenting protein, shows normal motihty and chemotaxis. J Cell Biol 1989 108 985-95. 

A mutant defective in the chemotaxis toward 4-hydroxybenzoate in P. putida was obtained by Tn5 transposon mutagenesis, and allowed identification of a gene cluster pcaRKF that encodes enzymes of the 3,4-dihydroxybenzoate branch of the (i-ketoadi pate pathway pcaR encodes regulatory genes, pcaK the thiolase in the last step of the pathway, and pcaF is involved in transport of, and chemotaxis toward 4-hydroxybenzoate (Harwood et al. 1994). 

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