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Publication . Article . 2014

Effect of low power microwave radiation on pigment production in bacteria

Shreya Raval; Vimla Chaudhari; Haren B. Gosai; Vijay Kothari;
Open Access
Published: 18 Dec 2014 Journal: Microbiology Research, volume 5 (issn: 2036-7473, eissn: 2036-7481, Copyright policy )
Publisher: MDPI AG

Effect of low power (90 W) microwave (MW) radiation (2450 MHz) on bacterial growth and pigment production was studied in three different bacteria. Microwave exposure of 2-6 min duration was able to alter growth and pigment production (prodigiosin production by Serratia marcescens, violacein production by Chormobacterium violaceum, and staphyloxanthin production by Staphylococcus aureus) in the test organisms significantly. In this study, pigment production was estimated in the cell population originated from microwave treated inoculum, and not directly in the MW treated cells. Thus the alterations in pigment production and/or secretion might have been transferred from the originally MW treated cells to their daughter cells (who did not receive direct MW exposure), indicating the mutagenic influence of microwave radiation. Heavy prodigiosin overproduction observed in one of the test tubes inoculated with microwave treated S. marcescens could not be sustained by daughter populations corresponding to that tube, indicating the reversible nature of microwave induced mutation(s). The microwave effects observed in this study largely seem to be of athermal nature, as the thermal effect was minimized by use of ice during the microwave treatment.

Subjects by Vocabulary

Microsoft Academic Graph classification: Biology Bacteria biology.organism_classification Prodigiosin chemistry.chemical_compound chemistry Microwave Microbiology Serratia marcescens Staphyloxanthin Bacterial growth Food science Pigment visual_art.visual_art_medium visual_art Population education.field_of_study education


Microbiology (medical), Molecular Biology, Microbiology, microwave; microwave specific athermal effects; prodigiosin; violacein; staphyloxanthin, microwave,microwave specific athermal effects, prodigiosin, violacein, staphyloxanthin, QR1-502

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