Light-independent biosynthesis and assembly of the photosystem II complex in the diatom Chaetoceros gracilis

Ryo Nagao, Tatsuya Tomo, Rei Narikawa, Isao Enami, Masahiko Ikeuchi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Diatoms can survive for long periods in the dark. However, how biosynthesis of photosynthetic proteins contributes to survival in the dark is poorly understood. Using a radiolabeling technique, we examined whether de novo biosynthesis and assembly of photosynthetic proteins differs in light-adapted vs. dark-adapted marine diatoms (Chaetoceros gracilis). In light-adapted cells, D1 protein was heavily radiolabeled owing to rapid turnover of photosystem II (PSII). In dark-adapted cells (>24 h), the radiolabeling patterns of PSII components changed, but the PSII dimer still formed. Therefore, diatoms may regulate the biosynthesis of photosynthetic proteins for long-term survival in the dark.

Original languageEnglish
Pages (from-to)1340-1345
Number of pages6
JournalFEBS Letters
Volume587
Issue number9
DOIs
Publication statusPublished - May 2 2013
Externally publishedYes

Keywords

  • FCP
  • PSII monomer
  • RC47
  • Turnover

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

Fingerprint Dive into the research topics of 'Light-independent biosynthesis and assembly of the photosystem II complex in the diatom Chaetoceros gracilis'. Together they form a unique fingerprint.

  • Cite this