The isomers o-, m-, and p-of hydroxybenzoic acid (HBA) in the concentration range 10-6-10-4 M in the unicellular green alga Chlorella vulgaris (Chlorophyceae) display marked biological activity. The o-HBA isomer, commonly known as salicylic acid, in a concentration of 10-4 M exerted the most stimulating effect on the parameters analysed (the number of cells, dry mass, the content of chlorophylls a and b, carotenoids, soluble proteins and their secretion, monosaccharides, DNA and RNA) whereas p-HBA had weak stimulating properties. On the other hand, m-HBA had a weak inhibitory effect on the growth of C. vulgaris and all the biochemical parameters analysed in comparison with the control culture of algae devoid of HBA isomers.
CITATION STYLE
Czerpak, R., Bajguz, A., Piotrowska, A., & Polecka, M. (2001). Effect of isomers of hydroxybenzoic acid on the growth and metabolism of Chlorella vulgaris Beijerinck (Chlorophyceae). Acta Societatis Botanicorum Poloniae, 70(4), 253–259. https://doi.org/10.5586/asbp.2001.032
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