Analytical and Bioanalytical Chemistry

, Volume 409, Issue 20, pp 4893–4903 | Cite as

In situ monitoring of molecular changes during cell differentiation processes in marine macroalgae through mass spectrometric imaging

Research Paper

Abstract

Matrix-assisted laser desorption/ionization mass spectrometric imaging (MALDI-MSI) was employed to discriminate between cell differentiation processes in macroalgae. One of the key developmental processes in the algal life cycle is the production of germ cells (gametes and zoids). The gametogenesis of the marine green macroalga Ulva mutabilis (Chlorophyta) was monitored by metabolomic snapshots of the surface, when blade cells differentiate synchronously into gametangia and giving rise to gametes. To establish MSI for macroalgae, dimethylsulfoniopropionate (DMSP), a known algal osmolyte, was determined. MSI of the surface of U. mutabilis followed by chemometric data analysis revealed dynamic metabolomic changes during cell differentiation. DMSP and a total of 55 specific molecular biomarkers, which could be assigned to important stages of the gametogenesis, were detected. Our research contributes to the understanding of molecular mechanisms underlying macroalgal cell differentiation.

Graphical abstract

Molecular changes during cell differentiation of the marine macroalga Ulva were visualized by matrix assisted laser desorption/ionization mass spectrometric imaging (MALDI-MSI)

Keywords

Ulva MALDI-MSI AP-MALDI Biomarkers Dimethylsulfoniopropionate (DMSP) 

Notes

Acknowledgements

The authors thank Dr. Michael Becker (Bruker Daltonik) and Prof. Dr. Georg Pohnert (University Jena) for useful discussions and the EMZ Jena for the scanning electron microscopy investigations. Financial support from the Deutsche Forschungsgemeinschaft (DFG) SFB 1127 ChemBioSys (R.K., T.W., U.S.S.) and from the Deutsche Bundesstiftung Umwelt (R.K.) is acknowledged.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

216_2017_430_MOESM1_ESM.pdf (397 kb)
ESM 1 (PDF 397 kb)

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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.Institute for Inorganic and Analytical Chemistry (IAAC)Friedrich Schiller University Jena (FSU Jena)JenaGermany
  2. 2.Institute of Organic and Macromolecular Chemistry (IOMC)Friedrich Schiller University Jena (FSU Jena)JenaGermany
  3. 3.Jena Center for Soft Matter (JCSM)Friedrich Schiller University Jena (FSU Jena)JenaGermany

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