Fig. 3: Enhancement of cyanobacterial photosynthesis by CDs.
From: Closed-loop enhancement of plant photosynthesis via biomass-derived carbon dots in biohybrids
a The growth curve of Syne cells with different concentrations (10, 40, 80, and 160 mg L−1) of CDs. The data are presented as the mean values ± standard deviation of four replicates. b The oxygen evolution rate of Syne cells with different concentrations of CDs under light intensity of 30 mW cm−2. c The oxygen evolution rate of Syne cells with 40 mg L−1 CDs under various light intensity. d Quantum yield (ϕPSII), photochemical quenching coefficient (qP) and electron transport rate (ETR) of PSII in CDs–Syne hybrids and Syne cells only. e Quantum yield (Y(I)) and ETR of PSI in Syne cells and CDs–Syne hybrids. f The intracellular concentration of NADP+ and NADPH in Syne cells and CDs–Syne hybrids. g The intracellular concentration of ADP and ATP in Syne cells and CDs–Syne hybrids. h Schematic of CDs-enhanced activities of photosystems for ATP and NADPH generation and CO2 fixation in cyanobacterial cells. G3P, glyceraldehyde 3-phosphate. i. The metabolic flux through Rubisco in Syne cells and CDs–Syne hybrids. j The glycerol production of Syne and CDs-Syne under light and dark condition.
