Accumulation of zeaxanthin in cytoplasmic membranes of the cyanobacterium Synechococcus sp. strain PCC7942 grown under high light condition

Kazumori Masamoto, Otto Zsiros, Zoltán Gombos

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The exposure of cells to excess light enhanced the content of zeaxanthin in the cells of the cyanobacterium, Synechococcus sp. strain PCC7942. The isolated cytoplasmic membranes of the high-light grown cells contained 2.7 times more zeaxanthin, on a protein basis, than low-light grown cells. However, the zeaxanthin content in the thylakoid membranes was not affected significantly. The accumulation of zeaxanthin in the cytoplasmic membranes under high-light conditions indicates a mechanism that can protect the cells against high-light exposure.

Original languageEnglish
Pages (from-to)136-138
Number of pages3
JournalJournal of Plant Physiology
Issue number1
Publication statusPublished - Jul 1999



  • Carotenoid
  • Cyanobacterium
  • High-light irradiation
  • Synechococcus PCC7942
  • Zeaxanthin

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Plant Science

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