Experimental Model for High-Throughput Screening of Microalgae Strains Useful for CO2 Fixation

Mihaila, Eliza-Gabriela; Popa, Daria Gabriela; Dima, Maria Daria; Stoian, Ioana Marcela; Dincă, Cristian; Constantinescu-Aruxandei, Diana; Oancea, Florin

doi:10.3390/chemproc2022007025

Cited by 1 publication

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“…Ch. sorokiniana NIVA-CHL 176 is a robust microalgal strain that has the potential for phytoremediation [92], carbon sequestration [93], and functional food/feed production [94].…”

Section: Discussionmentioning

confidence: 99%

Novel Strigolactone Mimics That Modulate Photosynthesis and Biomass Accumulation in Chlorella sorokiniana

Popa,

Georgescu,

Dumitrascu

et al. 2023

Molecules

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In terrestrial plants, strigolactones act as multifunctional endo- and exo-signals. On microalgae, the strigolactones determine akin effects: induce symbiosis formation with fungi and bacteria and enhance photosynthesis efficiency and accumulation of biomass. This work aims to synthesize and identify strigolactone mimics that promote photosynthesis and biomass accumulation in microalgae with biotechnological potential. Novel strigolactone mimics easily accessible in significant amounts were prepared and fully characterized. The first two novel compounds contain 3,5-disubstituted aryloxy moieties connected to the bioactive furan-2-one ring. In the second group of compounds, a benzothiazole ring is connected directly through the cyclic nitrogen atom to the bioactive furan-2-one ring. The novel strigolactone mimics were tested on Chlorella sorokiniana NIVA-CHL 176. All tested strigolactones increased the accumulation of chlorophyll b in microalgae biomass. The SL-F3 mimic, 3-(4-methyl-5-oxo-2,5-dihydrofuran-2-yl)-3H-benzothiazol-2-one (7), proved the most efficient. This compound, applied at a concentration of 10−7 M, determined a significant biomass accumulation, higher by more than 15% compared to untreated control, and improved the quantum yield efficiency of photosystem II. SL-F2 mimic, 5-(3,5-dibromophenoxy)-3-methyl-5H-furan-2-one (4), applied at a concentration of 10−9 M, improved protein production and slightly stimulated biomass accumulation. Potential utilization of the new strigolactone mimics as microalgae biostimulants is discussed.

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“…Ch. sorokiniana NIVA-CHL 176 is a robust microalgal strain that has the potential for phytoremediation [92], carbon sequestration [93], and functional food/feed production [94].…”

Section: Discussionmentioning

confidence: 99%