Amino acid cross resistance in Agrobacterium tumefaciens.
Beardsley, Robert E. (Manhattan College, New York, N. Y.). Amino acid cross resistance in Agrobacterium tumefaciens. J. Bacteriol. 84:1237-1240. 1962.-Resistant clones selected on medium supplemented with glycine were also resistant to d-methionine, d-valine, dl-norleucine, and dl-serine. Cross resistance was similarly exhibited by clones selected on d-methionine, d-valine, or dl-norleucine. Two types of resistant organisms were observed. One produced colonies containing normal rods on selection medium. The other produced translucent colonies containing L forms. Both grew as typical rods in unsupplemented medium. Some resistant clones did not produce a temperate phage carried by the parental strain, but these retained immunity to homologous phage. The toxicity of d-methionine and d-valine for nonresistant bacteria is not reversed by the l isomers. The lethal effects of toxic amino acids are additive.
D060054:Agrobacterium; D016960:Agrobacterium tumefaciens; D000596:Amino Acids; D005998:Glycine; D007930:Leucine; D008715:Methionine; D012231:Rhizobium; D012694:Serine; D014633:Valine
D000596:Amino Acids; D012694:Serine; D008715:Methionine; D007930:Leucine; D014633:Valine; D005998:Glycine
AGROBACTERIUM; GLYCINE; LEUCINE; METHIONINE; SERINE; VALINE