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GENETICS OF MOTILITY AND CHEMO TAX IS
ROLE OF METHIONINE IN CHEMOTAXIS
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15 minutes abortive transduction active product Adler allele amino acids assayed auxotroph avoiding reaction bacteria bacterium capillary cells cheA and cheB chemical chemotactic chemotaxis medium chloramphenicol chromosome cistrons closely linked Complementation tests compounds cotransduction curly mutant determined donor double mutants Escherichia coli experiments Figure filtered fla gene flagella flagellated flagellin flagellum Frequency of joint glucose glycerol gradient of transmission H gene homocysteine incubated interrupted mating isolated joint transduction labelled methionine labile linkage map metabolism methionine auxotroph methionine requirement methionine was added methionine-S methyl motC motility motility and chemotaxis mutants defective nonchemotactic mutants nonflagellated mutants nonmotile obtained paralyzed mutants phage phase phenotype phototaxis PI grown products of methionine protein synthesis reference markers requirement for chemotaxis S-adenosylmethionine Salmonella samples semisolid medium semisolid tryptone plates spermidine Table Taylor and Trotter thesis threonine tion trails transduction typhimurium uncoordinated mutants unselected marker Uptake of labelled uvrC wild-type recombinants