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
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Nagao, R., Tomo, T., Narikawa, R., Enami, I., & Ikeuchi, M. (2013). Light-independent biosynthesis and assembly of the photosystem II complex in the diatom Chaetoceros gracilis. FEBS Letters, 587(9), 1340-1345. https://doi.org/10.1016/j.febslet.2013.02.050