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Artificial regulation of state transition for augmenting plant photosynthesis using synthetic light-harvesting polymer materials.


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.

SUBMITTER: Zhou X 

PROVIDER: S-EPMC7449672 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Artificial regulation of state transition for augmenting plant photosynthesis using synthetic light-harvesting polymer materials.

Zhou Xin X   Zeng Yue Y   Tang Yongyan Y   Huang Yiming Y   Lv Fengting F   Liu Libing L   Wang Shu S  

Science advances 20200826 35


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-<i>co</i>-fluorene) (PBF)] with green light absorption and far-red emission could improve PSI activity of algae <i>Chlorella pyrenoidosa</i>, followed by further upgrading PSII activity to augment natural photosynthesis. For light-dependent react  ...[more]

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