Abstract
Objectives
To biochemically characterize synthetic peptides to control harmful algal blooms (HABs) that cause red tides in marine water ecosystems.
Results
We present an analysis of several short synthetic peptides and their efficacy as algicidal agents. By altering the amino acid composition of the peptides we addressed the mode of algicidal action and determine the optimal balance of cationic and hydrophobic content for killing. In a controlled setting, these synthetic peptides disrupted both plasma and chloroplast membranes of several species known to result in HABs. This disruption was a direct result of the hydrophobic and cationic content of the peptide. Furthermore, by using an anti-HAB bioassay in scallops, we determined that these peptides were algicidal without being cytotoxic to other marine organisms.
Conclusions
These synthetic peptides may prove promising for general marine ecosystem remediation where HABs have become widespread and resulted in serious economic loss.
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Acknowledgments
This research was supported by the National Institute of Ecology (NIE) and the Ministry of Education, Science, and Technology (NRF-2013R1A1A4A01010701).
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Seong-Chol Park and Jeong Chan Moon have contributed equally to this work.
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Park, SC., Moon, J.C., Kim, NH. et al. Algicidal effect of hybrid peptides as potential inhibitors of harmful algal blooms. Biotechnol Lett 38, 847–854 (2016). https://doi.org/10.1007/s10529-016-2052-0
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DOI: https://doi.org/10.1007/s10529-016-2052-0