Engelmann, Theodore Wilhelm
Published: September 1, 2006, 8:03 pm
Updated: September 1, 2006, 8:03 pm
This article has been reviewed by the following Topic Editor:
Tom Lawrence
Theodore Wilhelm Engelmann (1843 - 1909), a German physiologist, showed that the light reactions of photosynthesis, which capture solar energy and convert it into chemical energy, occur within the chloroplasts and respond only to the red and blue hues of natural light. His experiments involved a modified microscope condenser that allowed him to expose parts of photosynthetically active cells of the green alga Spirogyra to a thin ray of light. His aim was to discover which components of the cell functioned as light receptors.
Further Reading
Energy Luminaries: Theodore Engelmann (National Science Teachers Association)
Photosynthesis: The Light Reactions (Massachusetts Institute of Technology)
Photosynthesis: The Dark Reactions (Massachusetts Institute of Technology)
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Citation
Cutler J. Cleveland (Lead Author);Tom Lawrence (Topic Editor) "Engelmann, Theodore Wilhelm". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth September 1, 2006; Last revised Date September 1, 2006; Retrieved May 19, 2013 <http://www.eoearth.org/article/Engelmann,_Theodore_Wilhelm>
The Author
Cutler J. Cleveland is Professor of Earth and Environment at Boston University, where he also is on the faculty of the Center for Energy and Environmental Studies. Professor Cleveland is Editor-in-Chief of the Encyclopedia of Energy (Elsevier, 2004), winner of an American Library Association award, the Dictionary of Energy (Elsevier, 2005), Handbook of Energy (Elsevier, forthcoming), and is the Founding Editor-in-Chief of the Encyclopedia of Earth. He is the recipient of the Adelma ... (Full Bio)
Theodore Wilhelm Engelmann (1843 - 1909), a German physiologist, showed that the light reactions of photosynthesis, which capture solar energy and convert it into chemical energy, occur within the chloroplasts and respond only to the red and blue hues of natural light. His experiments involved a modified microscope condenser that allowed him to expose parts of photosynthetically active cells of the green alga Spirogyra to a thin ray of light. His aim was to discover which components of the cell functioned as light receptors.
Further Reading
Energy Luminaries: Theodore Engelmann (National Science Teachers Association)
Photosynthesis: The Light Reactions (Massachusetts Institute of Technology)
Photosynthesis: The Dark Reactions (Massachusetts Institute of Technology)
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