Genome-wide transcription analysis of Escherichia coli in response to extremely low-frequency magnetic fields

ABSTRACT: The widespread use of electricity raises the question of whether or not 50 Hz (power line frequency in Europe) magnetic fields (MFs) affect organisms. We investigated the transcription of Escherichia coli K-12 MG1655 in response to extremely low-frequency (ELF) MFs. Fields generated by three signal types (sinusoidal continuous, sinusoidal intermittent, and power line intermittent; all at 50 Hz, 1 mT), were applied and gene expression was monitored at the transcript level using an Affymetrix whole-genome microarray. Bacterial cells were grown continuously in a chemostat (dilution rate D = 0.4 h-1) fed with glucose-limited minimal medium and exposed to 50 Hz MFs with a homogenous flux density of 1 mT. For all three types of MFs investigated, neither bacterial growth (determined using optical

ORGANISM(S): Escherichia coli str. K-12 substr. MG1655

SUBMITTER: Simona Huwiler 

PROVIDER: E-GEOD-35371 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress