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Highlighting Theodor W. Engelmann's “Farbe und Assimilation” [Color and Assimilation]

Hintz, Nils HendrikORCIDiD
DOI: https://doi.org/10.1002/lob.10470
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9908
Hintz, Nils Hendrik, 2021: Highlighting Theodor W. Engelmann's “Farbe und Assimilation” [Color and Assimilation]. In: Limnology and Oceanography Bulletin, Band 30, 4: 121 - 126, DOI: 10.1002/lob.10470.
 
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  • Abstract
In 1883, Theodor Wilhelm Engelmann, a German scientist, wrote his essay “color and assimilation” (Ger.: “Farbe und Assimilation”) describing the state of the art in photosynthesis research, his recent findings, and further assumptions based upon his presented results. Nearly 140 years later, many of his assumptions were proven correct. By his still well‐known bacteria experiments using aerotactic, heterotrophic bacteria, he identified the chloroplasts as the location in which photosynthesis and oxygen production takes place. Furthermore, by evaluating the effects of different light spectra, he constructed the first action spectra that demonstrated the implication of the “green gap” of chlorophylls. He further posited that accessory photosynthetic pigments existed to extend the absorption range of chlorophyll. Although infrequently cited, his work was foundational for current ecological research of the vertical appearance of algae species within the underwater gradient in light spectrum due to specific harvesting of different light spectra, hence complementary chromatic adaptation of communities. This short retrospective highlights this piece of literature that represents an early step toward our current understanding of ecological competition for light spectra.
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  • Paläontologie, Geobiologie [273]
Subjects:
Theodor Wilhelm Engelmann
bacteria
photosynthesis investigations
first action spectra
This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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