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Subcellular Energetics and Carbon Storage in Chlamydomonas
- Source :
- Cells, Cells, MDPI, 2019, 8 (10), ⟨10.3390/cells8101154⟩, Cells, Vol 8, Iss 10, p 1154 (2019), Cells, 2019, 8 (10), ⟨10.3390/cells8101154⟩
- Publication Year :
- 2019
- Publisher :
- HAL CCSD, 2019.
-
Abstract
- International audience; Microalgae have emerged as a promising platform for production of carbon-and energy-rich molecules, notably starch and oil. Establishing an economically viable algal biotechnology sector requires a holistic understanding of algal photosynthesis, physiology, cell cycle and metabolism. Starch/oil productivity is a combined effect of their cellular content and cell division activities. Cell growth, starch and fatty acid synthesis all require carbon building blocks and a source of energy in the form of ATP and NADPH, but with a different requirement in ATP/NADPH ratio. Thus, several cellular mechanisms have been developed by microalgae to balance ATP and NADPH supply which are essentially produced by photosynthesis. Major energy management mechanisms include ATP production by the chloroplast-based cyclic electron flow and NADPH removal by water-water cycles. Furthermore, energetic coupling between chloroplast and other cellular compartments, mitochondria and peroxisome, is increasingly recognized as an important process involved in the chloroplast redox poise. Emerging literature suggests that alterations of energy management pathways affect not only cell fitness and survival, but also influence biomass content and composition. These emerging discoveries are important steps towards diverting algal photosynthetic energy to useful products for biotechnological applications.
- Subjects :
- 0106 biological sciences
0301 basic medicine
organelle
Biomass
Photosynthesis
oil
01 natural sciences
7. Clean energy
03 medical and health sciences
chemistry.chemical_compound
chloroplast
peroxisome
lcsh:QH301-705.5
Fatty acid synthesis
Cellular compartment
photosynthesis
biology
starch
Chlamydomonas
food and beverages
General Medicine
Metabolism
reductant
Peroxisome
biology.organism_classification
Chloroplast
mitochondria
phosphorylating power
[SDV.BV.AP]Life Sciences [q-bio]/Vegetal Biology/Plant breeding
030104 developmental biology
chemistry
Biochemistry
lcsh:Biology (General)
13. Climate action
metabolic shuttles
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 20734409
- Database :
- OpenAIRE
- Journal :
- Cells, Cells, MDPI, 2019, 8 (10), ⟨10.3390/cells8101154⟩, Cells, Vol 8, Iss 10, p 1154 (2019), Cells, 2019, 8 (10), ⟨10.3390/cells8101154⟩
- Accession number :
- edsair.doi.dedup.....a8299e3d44a7471d8e6057e32165f5eb