Phycobiliproteins Production Enhancement and Lipidomic Alteration by Titanium Dioxide Nanoparticles in Synechocystis sp PCC 6803 Culture

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This study aimed to improve the production of phycobiliproteins using TiO2 nanoparticles (NPs) in Synechocystis sp. PCC 6803. The growth characteristics of Synechocystis cells were not affected by TiO2 NPs treatment, but this treatment increased the chlorophyll content significantly by 62.2% (14.6 mg/L) compared to that of control (9.0 mg/L) on day 16. Phycocyanin production was increased by 33.8% (29.3 g/L) compared to that of control (21.9 g/L) on day 8. Allophycocyanin production was increased by 55.0% (6.2 g/L) compared to that of control (4.0 g/L) on day 8, and by 22.4% (16.4 g/L) compared to that of control (13.4 g/L) on day 16. Direct infusion mass spectrometry revealed that TiO2 NPs treatment significantly increased the levels of major thylakoid membranes of monogalactosyldiacylglycerols (18:2/18:3, 18:2/ 18:2, 18:1/18:2), phosphatidylglycerol (16:0/16:1), and sulfoquinovosyldiacylglycerols (16:0/16:1, 16:0:18:4) on day 8. These findings indicate that TiO2 NPs have potential for commercial applications in Synechocystis species or other microalgal strains.
Publisher
AMER CHEMICAL SOC
Issue Date
2018-08
Language
English
Article Type
Article
Keywords

SP PCC-6803; TIO2 NANOPARTICLES; SULFOQUINOVOSYL DIACYLGLYCEROL; CHLAMYDOMONAS-REINHARDTII; CHLORELLA-VULGARIS; OXIDATIVE STRESS; ENERGY-TRANSFER; ANATASE TIO2; MICROALGAE; PHOTOSYNTHESIS

Citation

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, v.66, no.32, pp.8522 - 8529

ISSN
0021-8561
DOI
10.1021/acs.jafc.8b01522
URI
http://hdl.handle.net/10203/245566
Appears in Collection
BS-Journal Papers(저널논문)
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