Algicidal activity of bacillamide alkaloids and their analogues against marine and freshwater harmful algae

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Abstract

Harmful algal blooms have become a great challenge to global aquatic ecosystems over the past decades. Given their low toxicity, high selectivity, and environment-friendly properties, the use of natural products and their analogues as algicides has proven to be particularly efficient. In the present study, algicidal activity of naturally occurring bacillamides A–C, alkaloid (1), and neobacillamide A, as well as their synthetic analogues were investigated intensively. Bioassay results showed that, relative to natural bacillamide alkaloids, aniline-derived analogue (10d) exhibited higher algicidal potential against three freshwater harmful algae Mycrocyctis aeruginosa, Scenedesmus obliquus, and Chlorella pyrenoidosa, suggesting that it could be used as a promising lead compound to develop novel algicide for controlling harmful algal blooms.

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Wang, B., Tao, Y., Liu, Q., Liu, N., Jin, Z., & Xu, X. (2017). Algicidal activity of bacillamide alkaloids and their analogues against marine and freshwater harmful algae. Marine Drugs, 15(8). https://doi.org/10.3390/md15080247

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