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Keywords:

  • Serratia sp.;
  • cld gene;
  • perchlorate;
  • pH;
  • salinity

Abstract

An isolated Serratia marcescens strain exhibited growth-coupled perchlorate (inline image) reduction under anoxic conditions. Perchlorate was reduced completely with stoichiometric chloride buildup and equimolar acetate consumption. Polymerase chain reaction confirmed the presence of pcrA and cld genes coding for key enzymes involved in the inline image degradation pathway. The isolate degraded inline image under high salt (up to 15% NaCl) and a wide range of pH (4.0–9.0), as well as simultaneously reduced nitrate and inline image.