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Updated: Jan 22, 2026
10:24
Two- and Three-Dimensional Live Cell Imaging of DNA Damage Response Proteins
Published on: September 28, 2012
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DNA Damage Response Pathways in Dinoflagellates
Chongping Li1,2, Joseph Tin Yum Wong3
1Department of Ocean Science, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China. cliaq@ust.hk.
Microorganisms
|July 10, 2019
Summary
Dinoflagellates possess robust DNA repair pathways, crucial for surviving UV radiation. Understanding these DNA damage responses (DDRs) is vital for accurate ecological and climate change impact assessments.
Area of Science:
- Marine biology
- Genomics
- Molecular biology
Background:
- Dinoflagellates are key phytoplankton in aquatic ecosystems.
- They face DNA damage from UV radiation in the euphotic zone.
- Cell cycle delays due to DNA damage responses (DDRs) can affect productivity estimates.
Purpose of the Study:
- Investigate DNA damage repair pathways in dinoflagellates.
- Identify links between DNA repair and cell cycle control.
- Analyze these pathways in three representative dinoflagellate species.
Main Methods:
- Bioinformatic analysis of dinoflagellate genomes.
- Searched for orthologues of eukaryotic DNA repair pathways.
- Examined genes involved in cell-cycle regulation.
Main Results:
- Major DNA repair pathways (photoreactivation, BER, NER, MMR, DSBR, HRR) are conserved in dinoflagellates.
- Orthologues for key DNA damage response and cell cycle control pathways were identified.
- Evidence suggests dinoflagellates have well-developed mechanisms to handle DNA damage.
Conclusions:
- Dinoflagellates possess a comprehensive suite of DNA repair mechanisms.
- These pathways are likely critical for their survival and ecological success.
- Further research on differential DDRs could illuminate dinoflagellate persistence, including red tides, under climate change.
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