Open AccessEffect of isomers of hydroxybenzoic acid on the growth and metabolism of Chlorella vulgaris Beijerinck (Chlorophyceae)
Author(s) -
Romuald Czerpak,
Andrzej Bajguz,
Agnieszka Piotrowska,
Magdalena Polecka
Publication year - 2014
Publication title -
acta societatis botanicorum poloniae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 29
eISSN - 2083-9480
pISSN - 0001-6977
DOI - 10.5586/asbp.2001.032
Subject(s) - chlorophyceae , chlorella vulgaris , salicylic acid , biology , stereochemistry , chlorophyta , metabolism , monosaccharide , biochemistry , carotenoid , growth inhibition , algae , chemistry , cell growth , botany
The isomers o-, m-, and p- of hydroxybenzoic acid (HBA) in the concentration range 10-1-10-4 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 h, 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