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Light-induced changes in the morphology and fluorescence of Arthrospira platensis

  • The cyanobacterium Arthrospira platensis is a well-known source of bioactive substances. Growth and the generation of bioactive ingredients of Arthrospira platensis depend mainly on the quantity of light in a controlled environment. Photoinhibition is a time, nutrient, and light intensity-dependent decrease in photosynthetic efficiency. However, too strong illumination can induce two harmful effects: (1) photoinhibition as a reduction in photosynthetic rate and (2) photooxidation which can have lethal effects on the cells, and which can lead to total loss of the culture. The results of this microscopical study demonstrate, that under the procedures described and very high photon flux den-sities, not only a decrease in the photosynthetic efficiency but beyond, also destruction of Arthrospira platensis can occur.

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Author: Conrad H. G. Jung, Peter Waldeck, Ingolf Petrick, Mosunmol Akinwunmi, Steffen Braune, Friedrich Jung, Jan-Heiner KüpperGND
URL:https://content.iospress.com/articles/journal-of-cellular-biotechnology/jcb239001
DOI:https://doi.org/10.3233/JCB-239001
ISSN:1386-0291
Title of the source (English):Clinical Hemorheology and Microcirculation
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2023
Tag:Arthrospira platensis; fluorescence; light stress; morphology; photoinhibition; phototoxicity
Volume/Year:9
Issue number:1
First Page:71
Last Page:77
Way of publication:Open Access
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Molekulare Zellbiologie
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