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Prodigiosin found in Serratia marcescens y2 initiates phototoxicity in the cytomembrane Electron. J. Biotechnol.
Wang,Fei; Luo,Hailan; Song,Guohua; Liu,Chang; Wang,Jianguo; Xu,Jingliang; Su,Xiuhong; Ma,Xu Yuan.
Background: Light can be absorbed by bacterial pigment and affects its growth. Prodigiosin is a red pigment found in various bacterial species. The purpose of this study was to investigate the impacts of light on prodigiosin production, biomass formation, and membrane integrity of Serratia marcescens y2. Results: S. marcescens y2 grew better and produced more intracellular prodigiosin in darkness than in illumination. The pigment leakage ratio from cells was detected more in light than in darkness conditions. Ethidium bromide uptake assay could visually prove the prodigiosin-related loss of membrane integrity under illumination. A higher concentration of malondialdehyde (MDA) was detected in light-treated culture than in darkness. Tests of different light...
Tipo: Journal article Palavras-chave: Ethidium bromide; Homogeneous light; Malondialdehyde; Red pigment.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000400007
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