EFFECT OF pH ON GROWTH AND BIOPIGMENT ACCUMULATION OF GREEN ALGA DUNALIELLA SALINAAbstract
A study was conducted to investigate the effect of different pH, on the growth and biopigment accumulation of a green alga Dunaliella salina isolates from Sambhar salt lake, Rajasthan (India). In order to monitor the impact of pH an algal samples of D. salina was exposed to different pH regimes (6 -10 pH) along with control (8.5 pH) over a period of 30 days. Set of experiments was conducted to study and evaluate the optimum growth and biopigment content for D.salina. The results of this experiment showed that optimum growth of D.salina was found at pH 8. Total chlorophyll content of the algal species decreases as the pH value was increased. While total carotenoids content of the algal species increases as the increases pH values and it was found that the green alga species changed its appearance from green to deep orange. The results indicate that algal species showed diverse response to pH stress.
P. Dhaka* and G. P. Singh
Algal Biotechnology Lab, Department of Botany, University of Rajasthan, Jaipur - 302004, Rajasthan, India.
03 May, 2017
08 September, 2017
17 September, 2017
01 January, 2018