Open AccessPerchlorate reduction by an isolated S erratia marcescens strain under high salt and extreme p H
Author(s) -
Vijaya Nadaraja Anupama,
Gangadharan Puthiya Veetil Prajeesh,
Bhaskaran Krishnakumar
Publication year - 2013
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/1574-6968.12062
Subject(s) - perchlorate , serratia marcescens , chemistry , anoxic waters , salt (chemistry) , strain (injury) , nitrate , microbiology and biotechnology , biochemistry , nuclear chemistry , inorganic chemistry , biology , gene , environmental chemistry , escherichia coli , organic chemistry , anatomy , ion
An isolated S erratia marcescens strain exhibited growth‐coupled perchlorate (ClO 4−) 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 theClO 4−degradation pathway. The isolate degradedClO 4−under high salt (up to 15% NaCl ) and a wide range of p H (4.0–9.0), as well as simultaneously reduced nitrate andClO 4−.