Studies on the growth of the marine microalga Dunaliella salina (Teodoresco)


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Authors

  • P Sunil Kumar Central Marine Fisheries Research Institute, Cochin- 682 014, India
  • S Dharmaraj Central Marine Fisheries Research Institute, Cochin- 682 014, India

Abstract

The present paper reports on the growth pattern of Dunaliella salina cells cultured in different salinities and also in stressed conditions on exposure to
mutagens (UV and PEG). The cultures were maintained in different salinities
viz., 20, 25, 30, 35, 40, 45 and 50 ppt for a period of two weeks in triplicates and the growth rate was monitored. The peak growth (14.29 lakhs) was observed in 35 ppt on eleventh day indicating the ideal salinity for the culture of this species. The cultures in mid-exponential growth phase were exposed to UV light for 30 and 60 minutes and PEG at four doses viz. 0.125, 0.25, 0.5 and 1 gm/ml. Poorest cell growth was observed for half an hour UV treated cultures (3.51 lakhs/ml). A proportionate decrease in cell count was noticed with increase in the concentration of PEG.

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Author Biographies

  • P Sunil Kumar, Central Marine Fisheries Research Institute, Cochin- 682 014, India
    Central Marine Fisheries Research Institute, Cochin- 682 014, India
  • S Dharmaraj, Central Marine Fisheries Research Institute, Cochin- 682 014, India
    Central Marine Fisheries Research Institute, Cochin- 682 014, India

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Issue

Vol. 50 No. 2 (2003)

Section

Note

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Kumar, P. S., & Dharmaraj, S. (2011). Studies on the growth of the marine microalga Dunaliella salina (Teodoresco). Indian Journal of Fisheries, 50(2), 259-262. https://epubs.icar.org.in/index.php/IJF/article/view/7420