Decoupling of plastid and endomembrane homeoviscous response to low temperature and darkness in Phaeodactylum tricornutum
Our study reveals significant shifts in plastidial lipid species and unsaturation levels in P. tricornutum under low temperatures and extended darkness, showing lipid remodeling's importance in maintaining membrane fluidity and protecting photosynthetic systems. Light activates plastidial Lipid remodeling, notably the 16:3-to-16:4 switch, suggesting a light-dependent regulatory mechanism. Endomembrane lipid remodeling appears less light-dependent. These findings enhance understanding of diatom adaptation to environmental fluctuations, crucial for their resilience in diverse marine environments. Future research should explore molecular pathways and species-specific strategies in other diatom species, especially polar taxa.
Authors
- Juliette Salvaing (ORCID: https://orcid.org/0000-0002-5249-2225)
- Juliette Jouhet (ORCID: https://orcid.org/0000-0002-4402-2194)
- Éric Maréchal (ORCID: https://orcid.org/0000-0002-0060-1696)
- Mathilde Laetitia Audrey Simon
- Marion Schilling (ORCID: https://orcid.org/0000-0002-2544-1879)
- Alberto Amato (ORCID: https://orcid.org/0000-0002-9126-5535)
- Yannick Sérès
- Rachel Bonnarde
- Camille Serbutoviez-Verville
Institutions
- Centre National de la Recherche Scientifique (FR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- CEA Grenoble (FR)
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR)
- Laboratoire Physiologie Cellulaire & Végétale (FR)
Publication Details
- Journal
- BMC Plant Biology
- Published
- 2025-10-22
- DOI
- https://doi.org/10.1186/s12870-025-07406-9
- Citations
- 2
- Primary Topic
- Algal biology and biofuel production
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- Agence Nationale de la Recherche
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement