Comparison of Photosystem-I and Photosystem-II activities of spheroplasts from normal and photobleached Anabaena cylindrica

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Abstract

The analysis of photochemical activities of Photosystem I and Photosystem II in spheroplasts from normal and photobleached Anabaena cylindrica showed an increase in Photosystem II activity relative to Photosystem I in photobleached cells. We suggest that the reasons for this modification in photochemical activity are, (i) a rearrangement of pigments between the two photosystems, and (ii) improved functional condition of the photosynthetic units in Photosystem II.

Original languageEnglish
Pages (from-to)112-115
Number of pages4
JournalArchives of Microbiology
Volume141
Issue number2
DOIs
Publication statusPublished - Mar 1985

Fingerprint

Anabaena cylindrica
Spheroplasts
Photosystem I Protein Complex
Photosystem II Protein Complex
Pigments

Keywords

  • Anabaena cylindrica
  • Carotenoids
  • Cyanobacteria
  • Energy transfer
  • Functional condition of photosystems
  • Photochemical activity

ASJC Scopus subject areas

  • Microbiology

Cite this

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abstract = "The analysis of photochemical activities of Photosystem I and Photosystem II in spheroplasts from normal and photobleached Anabaena cylindrica showed an increase in Photosystem II activity relative to Photosystem I in photobleached cells. We suggest that the reasons for this modification in photochemical activity are, (i) a rearrangement of pigments between the two photosystems, and (ii) improved functional condition of the photosynthetic units in Photosystem II.",
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AB - The analysis of photochemical activities of Photosystem I and Photosystem II in spheroplasts from normal and photobleached Anabaena cylindrica showed an increase in Photosystem II activity relative to Photosystem I in photobleached cells. We suggest that the reasons for this modification in photochemical activity are, (i) a rearrangement of pigments between the two photosystems, and (ii) improved functional condition of the photosynthetic units in Photosystem II.

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KW - Carotenoids

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KW - Energy transfer

KW - Functional condition of photosystems

KW - Photochemical activity

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