Algicidal Activity of Bacillamide Alkaloids and Their Analogues against Marine and Freshwater Harmful Algae
作者:Bo Wang、Yuanyuan Tao、Qisheng Liu、Na Liu、Zhong Jin、Xiaohua Xu
DOI:10.3390/md15080247
日期:——
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.
过去几十年来,有害藻华已成为全球水生生态系统面临的巨大挑战。鉴于天然产物及其类似物具有低毒性、高选择性和环境友好的特性,将其用作杀藻剂已被证明特别有效。本研究深入研究了天然杀藻酰胺 A-C、生物碱(1)、新杀藻酰胺 A 及其合成类似物的杀藻活性。生物测定结果表明,与天然拟杆菌酰胺生物碱相比,苯胺衍生的类似物(10d)对三种淡水有害藻类铜绿微囊藻(Mycrocyctis aeruginosa)、褐藻(Scenedesmus obliquus)和小球藻(Chlorella pyrenoidosa)具有更高的杀藻潜力,这表明它可以作为一种有前途的先导化合物来开发新型杀藻剂,以控制有害藻类的大量繁殖。