Effect of pH, temperature, and potassium sorbate on amino acid uptake in Salmonella typhimurium 7136.
AUTOR(ES)
Tuncan, E U
RESUMO
The effect of sorbate on L-serine and L-histidine uptake in Salmonella typhimurium was studied at various pH levels, temperatures, and amino acid and sorbate concentrations. Low pH had an apparent synergistic effect on amino acid uptake inhibition caused by sorbate. The relationship between sorbate concentration and the amount of amino acid uptake inhibition was not linear. Compared with L-histidine, L-serine uptake was more sensitive to changes in pH, temperature, and sorbate concentration. Various degrees of amino acid uptake inhibition by sorbate may be related to differences between amino acid transport systems. The results of this study suggest that sorbate acts as a noncompetitive inhibitor of amino acid uptake in S. typhimurium.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=373539Documentos Relacionados
- Effect of NaCl, pH, temperature, and atmosphere on growth of Salmonella typhimurium in glucose-mineral salts medium.
- Influences of pH, Temperature, and Moisture on Gaseous Tritium Uptake in Surface Soils
- The Effect of pH, Temperature, and Composition of the Medium on Growth Characteristics of Rhodotorula gracilis
- Combined effect of acetate and reduced water activity in survival of Salmonella typhimurium 7136.
- Variability of Temperature, pH, and Moisture in an Aerobic Composting Process