American Journal of Environmental Sciences

Phylogenetic Study of Some Strains of Dunaliella

Duc Tran, Trung Vo, Sixto Portilla, Clifford Louime, Nguyen Doan, Truc Mai, Dat Tran and Trang Ho

DOI : 10.3844/ajessp.2013.317.321

American Journal of Environmental Sciences

Volume 9, Issue 4

Pages 317-321


Dunaliella strains were isolated from a key site for salt production in Vietnam (Vinh Hao, Binh Thuan province). The strains were identified based on Internal Transcribed Spacer (ITS) markers. The phylogenetic tree revealed these strains belong to the clades of Dunaliella salina and Dunaliella viridis. Results of this study confirm the ubiquitous nature of Dunaliella and suggest that strains of Dunaliella salina might be acquired locally worldwide for the production of beta-carotene. The identification of these species infers the presence of other Dunaliella species (Dunaliella tertiolecta, Dunaliella primolecta, Dunaliella parva), but further investigation would be required to confirm their presence in Vietnam. We anticipate the physiological and biochemical characteristics of these local species will be compared with imported strains in a future effort. This will facilitate selection of strains with the best potential for exploitation in the food, aquaculture and biofuel industries. The Dunaliella strains isolated and identified in this study are maintained at the Laboratory of Algal Biotechnology, International University and will be made available for research and educational institutions.


© 2013 Duc Tran, Trung Vo, Sixto Portilla, Clifford Louime, Nguyen Doan, Truc Mai, Dat Tran and Trang Ho. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.