PJB-2018-154
DIVERSITY AND DISTRIBUTION OF DUNALIELLA VIRIDIS CHLOROPHYCEAE ALGAE IN HOZ-E SOLTAN AND ARAN-VA-BIDGOL SALINE LAKES OF IRAN
Mahshid Sedghi
Abstract
Dunaliella is a genus of green microalgae including several halotolerant members of potential industrial and biotechnological interests. This study characterizes 4 Dunaliella isolates from the Hoz-e Soltan and Aran-va-Bidgol saline lakes, Iran. Taxonomic identification was carried out based on morphology (including the size and color of the cells, presence and location of stigma and refractile granules), supported by molecular phylogeny data. Phylogenetic analysis of SSU and ITS regions of nuclear rDNA showed that the isolates cluster in the D. viridis clade. Also, in line with the results of molecular phylogeny, the morphological characteristics were similar to those of D. viridis. Additionally, our phylogenetic analyses performed on ITS region showed that there might be undescribed phylogenetic species in not only Dunaliella viridis but also in other clades of this genus and more sequence analyses may be helpful to resolve more species of Dunaliella.
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