Abstract
Several streptomycetes known to metabolize organochlorides or lignocellulose were tested for their ability to break the recalcitrant carbon-chlorine bond using the insecticide lindane (hexachlorocyclohexane) as a model substrate. Streptomyces PSI rapidly converted [U-14C] lindane to a mixture of water-soluble metabolites when grown on tryptone-yeast extract at 28°C for one to five days. Chemical analysis of the products showed extensive aromatization with formation of a trichlorophenol, as well as extensive conversion to water-soluble acids, other more hydrophilic products, and CO2. Several pigment-negative mutants were isolated which still converted lindane to the same metabolites, but the wild-type organism would not grow on lindane as its sole carbon source. With higher concentrations of lindane (0.1 mg/ml), both the wild-type and a pig-mutant strain converted 20% to water solubility in six days.
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© 1988 Springer Science+Business Media New York
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Pogell, B., Speedie, M., MacDonald, M., Kline, R., Huang, Y. (1988). Metabolic Conversion of Lindane to Chlorophenols, Hydrophobic Acids, and More Hydrophilic Products by Streptomyces PSI. In: Omenn, G.S. (eds) Environmental Biotechnology. Basic Life Sciences, vol 45. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0824-7_56
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DOI: https://doi.org/10.1007/978-1-4899-0824-7_56
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4899-0826-1
Online ISBN: 978-1-4899-0824-7
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