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The Functional and Optical Absorption Cross-Sections of Phytoplankton Photosynthesis

  • Zvy Dubinsky
Part of the Environmental Science Research book series (ESRH, volume 43)

Abstract

Phytoplankton, like all photosynthetic organisms, have highly complex light-harvesting systems, consisting of pigment beds arranged on asymmetrical membranes. These pigment arrays, or “antennae”, as well as any other cellular, light-absorbing structures and compounds have a definite probability “cloud” for absorbing impinging photons. This wavelength-dependent probability may be quantified as a cross-section, with dimensions of area per unit of compound. These in vivo cross-sections are invariably smaller than those of the same substance, for example, chlorophyll a, when extracted by any suitable solvent, brought into solution, and purified. The optical in-vivo cross-section of these pigments varies considerably between species, as well as within the same species, in response to such environmental factors as ambient light and nutrient status.

Keywords

Maximal Quantum Yield Phytoplankton Cell Growth Irradiance Photosynthetic Unit Phytoplankton Photosynthesis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Zvy Dubinsky
    • 1
  1. 1.Department of Life SciencesBar Ilan UniversityRamat GanIsrael

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