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 journalArticlepeer-review

11 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