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New type of delayed light emission from photosynthetic bacteria

Authors
Journal
Biochimica et Biophysica Acta (BBA) - Bioenergetics
0005-2728
Publisher
Elsevier
Publication Date
Volume
357
Issue
3
Identifiers
DOI: 10.1016/0005-2728(74)90026-7

Abstract

Abstract A new type of short-wavelength delayed light emission from the photosynthetic bacteria Rhodospirillum rubrum and Rhodopseudomonas spheroides was found. The emission and action spectra suggest that magnesium protoporphyrin IX or a similar compound is the emitter. Anaerobic conditions were necessary to detect this long-lived emission. Some inhibitors of the primary processes of photosynthesis affected the intensity and the decay rate of the delayed light emission.

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