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Response of pigmented Serratia marcescens to the illumination

Paper ID Volume ID Publish Year Pages File Format Full-Text
30827 44507 2012 6 PDF Available
Title
Response of pigmented Serratia marcescens to the illumination
Abstract

Variations in the illumination conditions (light/darkness) affected both the biosynthesis of prodigiosin and energy metabolism of the pigmented strain ATCC 9986 Serratia marcescens growing aerobical in the batch culture were shown. In the process incubation the transition of the pigmented culture from illumination within (24 h, 48 h) in the dark conditions increased the prodigiosin synthesis by 2.0, 2.5 times, respectively. At the same time, the illumination did not influence the prodigiosin biosynthesis in the stationary growth phase. In the initial period of prodigiosin synthesis the rate of oxygen consumption was higher than later when the pigment synthesis gradually decreased. The respiration activity of colorless strain 24-5 is not independent from the lighting conditions. The regulation of energetic pathways in the light and in darkness has been revealed. Prodigiosin is associated with the hydrophobic protein and it is represented pigment protein complex by diameter of particles less 100 kDa. Fluorescence spectrum of prodigiosin and it the absorption spectra of derivatives of high orders DIV and DVIII were described.

► The light influence both the pigment biosynthesis and energy metabolism of Serratia marcescens. ► The pigment synthesis will increase at the transition the cells from light to dark conditions. ► The rate of oxygen consumption by culture is the highest in the exponential phase. ► Prodigiosin will represent by pigment protein complex as particles less 100 KDa.

Keywords
Serratia marcescens; Illumination; Prodigiosin; Respiration; Absorption spectra
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Response of pigmented Serratia marcescens to the illumination
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 106, 5 January 2012, Pages 18–23
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us