Subcellular Energetics and Carbon Storage in
chloroplast
metabolic shuttles
mitochondria
oil
organelle
peroxisome
phosphorylating power
photosynthesis
reductant
starch
Journal
Cells
ISSN: 2073-4409
Titre abrégé: Cells
Pays: Switzerland
ID NLM: 101600052
Informations de publication
Date de publication:
26 09 2019
26 09 2019
Historique:
received:
01
09
2019
revised:
19
09
2019
accepted:
24
09
2019
entrez:
29
9
2019
pubmed:
29
9
2019
medline:
17
6
2020
Statut:
epublish
Résumé
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.
Identifiants
pubmed: 31561610
pii: cells8101154
doi: 10.3390/cells8101154
pmc: PMC6830334
pii:
doi:
Substances chimiques
NADP
53-59-8
Carbon
7440-44-0
Adenosine Triphosphate
8L70Q75FXE
Starch
9005-25-8
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Review
Langues
eng
Sous-ensembles de citation
IM
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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