Modulation of the growth and metabolic response of cyanobacteria by the multifaceted activity of naringenin

PloS One
Beata ŻyszkaJacek Lipok

Abstract

The interactions between the plant-derived bioflavonoid, naringenin, and prokaryotic microalgae representatives (cyanobacteria), were investigated with respect to its influence on the growth and metabolic response of these microorganisms. To achieve reliable results, the growth of cyanobacteria was determined based on measurements of chlorophyll content, morphological changes were assessed through microscopic observations, and the chemical response of cells was determined using liquid and gas chromatography (HPLC; GC-FID). The results show that micromolar levels of naringenin stimulated the growth of cyanobacteria. Increased growth was observed for halophilic strains at naringenin concentrations below 40 mg L-1, and in freshwater strains at concentrations below 20 mg L-1. The most remarkable stimulation was observed for the freshwater species Nostoc muscorum, which had a growth rate that was up to 60% higher than in the control. When naringenin was examined at concentrations above 40 mg L-1, the growth of the tested microorganisms was inhibited. Simultaneously, an intensive excretion of exopolysaccharides was observed. Microscopic observations strongly suggest that these effects resulted from a structural disturbance of cyanoba...Continue Reading

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Citations

Jul 4, 2018·Nature Plants·Fay-Wei LiKathleen M Pryer
Dec 24, 2018·Applied Microbiology and Biotechnology·Beata Żyszka-HaberechtJacek Lipok

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Methods Mentioned

BETA
scanning electron microscopy

Software Mentioned

OpenChrom
Statistica

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