Artificial regulation of state transition for augmenting plant photosynthesis using synthetic light-harvesting polymer materials
Open Access
- 1 August 2020
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science Advances
- Vol. 6 (35), eabc5237
- https://doi.org/10.1126/sciadv.abc5237
Abstract
Artificial regulation of state transition between photosystem I (PSI) and PSII will be a smart and promising way to improve efficiency of natural photosynthesis. In this work, we found that a synthetic light-harvesting polymer [poly(boron-dipyrromethene-co-fluorene) (PBF)] with green light absorption and far-red emission could improve PSI activity of algae Chlorella pyrenoidosa, followed by further upgrading PSII activity to augment natural photosynthesis. For light-dependent reactions, PBF accelerated photosynthetic electron transfer, and the productions of oxygen, ATP and NADPH were increased by 120, 97, and 76%, respectively. For light-independent reactions, the RuBisCO activity was enhanced by 1.5-fold, while the expression levels of rbcL encoding RuBisCO and prk encoding phosphoribulokinase were up-regulated by 2.6 and 1.5-fold, respectively. Furthermore, PBF could be absorbed by the Arabidopsis thaliana to speed up cell mitosis and enhance photosynthesis. By improving the efficiency of natural photosynthesis, synthetic light-harvesting polymer materials show promising potential applications for biofuel production.Funding Information
- National Natural Science Foundation of China (21533012 and 21661132006)
- Strategic Priority Research Program of the Chinese Academy of Sciences (XDA16020804)
This publication has 43 references indexed in Scilit:
- Conjugated Polyelectrolyte Materials for Promoting Progenitor Cell Growth Without SerumScientific Reports, 2013
- High-value products from microalgae—their development and commercialisationJournal of Applied Phycology, 2013
- Improving photosynthesis for algal biofuels: toward a green revolutionTrends in Biotechnology, 2011
- A Red-Shifted ChlorophyllScience, 2010
- Coherently wired light-harvesting in photosynthetic marine algae at ambient temperatureNature, 2010
- Direct Visualization of Glucose Phosphorylation with a Cationic PolythiopheneAdvanced Materials, 2008
- Chemical Sensors Based on Amplifying Fluorescent Conjugated PolymersChemical Reviews, 2007
- State transitions and light adaptation require chloroplast thylakoid protein kinase STN7Nature, 2005
- Rapid flow cytofluorometric analysis of mammalian cell cycle by propidium iodide staining.The Journal of cell biology, 1975
- Conversion of Light into Chemical Energy in PhotosynthesisNature, 1959