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Journal of Applied Phycology

, Volume 27, Issue 4, pp 1443–1451 | Cite as

Trace concentrations of iron nanoparticles cause overproduction of biomass and lipids during cultivation of cyanobacteria and microalgae

  • Karolína Pádrová
  • Jaromír Lukavský
  • Linda Nedbalová
  • Alena Čejková
  • Tomáš Cajthaml
  • Karel Sigler
  • Milada Vítová
  • Tomáš Řezanka
Article

Abstract

Cultivation in Zehnder medium containing 5.1 mg L−1 zero-valent iron nanoparticles (nZVI) boosted the growth of the green algae Desmodesmus subspicatus, Dunaliella salina, Parachlorella kessleri and Raphidocelis subcapitata and the eustigmatophycean algae Nannochloropsis limnetica and Trachydiscus minutus. In the cyanobacterium Arthrospira maxima, growth stimulation occurred at 1.7–5.1 mg L−1 nZVI. In all studied microorganisms, 5.1 mg L−1 nZVI strongly enhanced lipid accumulation, decreased the content of saturated and monounsaturated fatty acids with the exception of palmitoleic acid and increased the content of polyunsaturated fatty acids in cells. The nZVI particles may provide a suitable source of iron causing increased cell growth and induce metabolic changes resulting in higher lipid production and changes in fatty acid (FA) composition. Altered lipid synthesis may reflect the oxidative action of nZVI. Further research may contribute to optimizing the economical production of oils from oleaginous microorganisms and help clarify the mechanism of nZVI action.

Keywords

Zero-valent iron Nanoparticles Microalgae Cyanobacterium Lipid profile 

Notes

Acknowledgments

The research was supported by GACR P503/11/0215 and GACR 14-00227S, by Competence Centres TE01020218 and Biorefinery Res. Centre of Competence TE 01020080 grants of the Czech Technology Agency, by the Institutional Internal Project RVO61388971, by ICT IGA project no. A2 FPBT 2014 022, and Centre for Algal Biotechnologies (Algatech) project, reg. no. CZ.1.05/2.1.00/03.0110

Supplementary material

10811_2014_477_MOESM1_ESM.pdf (351 kb)
ESM 1 (PDF 350 kb)

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Karolína Pádrová
    • 1
  • Jaromír Lukavský
    • 2
  • Linda Nedbalová
    • 3
  • Alena Čejková
    • 1
  • Tomáš Cajthaml
    • 4
  • Karel Sigler
    • 4
  • Milada Vítová
    • 5
  • Tomáš Řezanka
    • 4
  1. 1.Department of BiotechnologyInstitute of Chemical Technology PraguePragueCzech Republic
  2. 2.Institute of Botany, Academy of Sciences of the Czech RepublicBiorefinery Research Centre of CompetenceTřeboňCzech Republic
  3. 3.Department of Ecology, Faculty of ScienceCharles University in PraguePrague 2Czech Republic
  4. 4.Institute of MicrobiologyAcademy of Sciences of the Czech RepublicPragueCzech Republic
  5. 5.Laboratory of Cell Cycles of AlgaeInstitute of Microbiology, Academy of Sciences of the Czech RepublicTřeboňCzech Republic

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