Influence of traumatic acid on growth and metabolism of Chlorella vulgaris under conditions of salt stress

The aim of this work was to study the role of traumatic acid (TA) in the adaptation of green algae Chlorella vulgaris Beijerinck to salt stress. In order to achieve this aim, studies were conducted concerning the influence of exogenous TA at a concentration of 10−5 M combined with sodium chloride (NaCl) at various concentrations (10−7–10−4 M), on the growth of C. vulgaris and the levels of basic biochemical parameters, such as chlorophylls a and b, monosaccharides, cell proteins and the activity of superoxide dismutase enzyme. The studies carried out demonstrated that TA eliminated the negative effects of NaCl at all test concentrations and also increased the content of carotenoids, monosaccharides and cell proteins.