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 language | English |
---|---|
Pages (from-to) | 1340-1345 |
Number of pages | 6 |
Journal | FEBS Letters |
Volume | 587 |
Issue number | 9 |
DOIs | |
Publication status | Published - May 2 2013 |
Externally published | Yes |
Keywords
- FCP
- PSII monomer
- RC47
- Turnover
ASJC Scopus subject areas
- Biophysics
- Structural Biology
- Biochemistry
- Molecular Biology
- Genetics
- Cell Biology