, Volume 46, Issue 3, pp 255–256 | Cite as

Pigment distribution in cyanobacteria: An in vivo microspectroscopic investigation

  • L. Barsanti
  • V. Passarelli
  • P. Gualtieri
Research Articles


In vivo microspectroscopy represents an effective and reliable technique to study pigment composition and distribution. In contrast to traditional extractive techniques, it preserves the integrity of biological specimens, without modifying the nature of the pigments. The spectroscopic apparatus we used is very simple and consists of a common microscope equipped with a monochromator, a photomultiplier, and two pinhole diaphragms. Absorption spectra obtained by means of this apparatus on different species of cyanobacteria are presented.

Key words

Pigments microscope photometry absorption spectra digital microscopy Spirulina maxima Spirulina platensis Anabaena azollae 


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Copyright information

© Birkhäuser Verlag 1990

Authors and Affiliations

  • L. Barsanti
    • 1
  • V. Passarelli
    • 1
  • P. Gualtieri
    • 1
  1. 1.C.N.R., Istituto di BiofisicaPisa(Italy)

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