Salt Stress Effects on Growth and Photosynthetic Pigments' Content in Algoculture of Acutodesmus dimorphus (Chlorophyta)

摘要

In this work we analyzed the effect of salt stress on cell number growth, biomass accumulation, and photosynthetic pigment content in algoculture of freshwater green alga Acutodesmus dimorphus (Turpin) P.M. Tsarenko. It was shown that the introductionof sodium chloride to a culture medium retards microalga growth and diminishes the quantity of chlorophylls a and b. Increases in salt concentrations and the duration of cultivation caused an increase in the amount of carotenoids. An increase in the carotenoid amount was observed on day 18 of cultivation for all applied salt concentrations, and maximum values were identified at 0.75% of NaCl in the culture medium.