Molecular Cloning and Characterization Analysis of Low CO2–Inducible Protein Gene from Dunaliella parva

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Abstract:

Microalgae could modulate their photosynthesis to acclimate to CO2-limiting stress through inducing a carbon-concentrating mechanism (CCM) which included carbonic anhydrases and inorganic carbon (Ci) transporters. However, Ci-specific transporters have not been well described in algae so far. The former studies indicated that low CO2-inducible protein (Lci) played a significant role in the CCM, could increase Ci uptake and intracellular Ci accumulation under low CO2 conditions. The full-length cDNA encoding Lci was obtained from oleaginous microalgae Dunaliella parva, which include 1302 bp open reading frame (ORF), 255 bp 5′-untranslated sequence and 447 bp 3′-untranslated sequence. Similarity analysis revealed that the highest identity was found among Dunaliella parva, Chlamydomonas reinhardtii and Volvox carteri. The Dunaliella parva Lci also showed wide similarity with other species.

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Advanced Materials Research (Volumes 347-353)

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2705-2708

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October 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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