Effect of some herbicides on the production of lysine byAzotobacter chroococcum |
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Authors: | J González-López M V Martínez-Toledo B Rodelas V Salmerón |
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Institution: | (1) Department of Microbiology, Faculty of Pharmacy and Institute of Water Research, University of Granada, E-18071 Granada, Spain |
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Abstract: | Summary Production of lysine byAzotobacter chroococcum strain H23 was studied in chemically-defined media amended with different concentrations of alachlor, metolachlor, 2,4-D, 2,4,5-T and 2,3,6-TBA. The presence of 5, 10, and 50 g/ml of alachlor or 2,3,6-TBA significantly decreased quantitative production of lysine. However, the presence 2,4-D or 2,4,5-T at concentrations of 10 and 50 g/ml enhanced the production of lysine. Quantitative production of lysine was not affected as consequence of the addition of metolachlor to the culture medium, showing that the release lysine to the culture media byA. chroococcum was not affected by that herbicide. |
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Keywords: | Amino acids Lysine Herbicides Azotobacter Xenobiotics |
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