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Cyanide response in Escherichia coli

ABSTRACT: The goal was to ascertain the impact of cyanide treatment on E. coli's transcriptome.

ORGANISM(S): Escherichia coli

PROVIDER: GSE23578 | GEO | 2014/07/31

SECONDARY ACCESSION(S): PRJNA130923

REPOSITORIES: GEO

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Cyanide response in Escherichia coli

Project description:The goal was to ascertain the impact of cyanide treatment on E. coli's transcriptome. There were 4 biological samples. For each sample there were two replicate DNA microarray performed. Data was analyzed with Imagene and lcDNA Hyduke DR, Rohlin L, Kao KC, Liao JC. 2003 A software package for cDNA microarray data normalization and assessing confidence intervals. OMICS 7(3):227-234.

2014-07-31 | E-GEOD-23578 | biostudies-arrayexpress

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Project description:Pure cultures of ammonia oxidizing bacterium, Nitrosomonas europaea, are exposed to cyanide in pseudo-steady state batch reactor in presence of ammonia. Nitrosomonas europaea are generally regarded as the most sensitive organism to various inhibitors commonly encountered in the wastewater treatment plants (WWTP). To find stress genes of Nitrosomonas europaea to cyanide known as inhibitor of respiratory process, whole-genome transcript response to cyanide was determined in this research using microarray and qRT-PCR. When 1 uM NaCN inhibits nitrification about 50 %, transcript levels of 35 genes were increased while transcript levels of 29 genes were decreased, showing more than 2-fold in total 2460 genes. moeZ (NE2353), homologue with rhodanases related to detoxification of CN-, showed 7-fold up regulation and gene cluster including moeZ also showed significant up regulation. Keywords: cyanide, stress response, moeZ

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