银杏-橙花叔醇复方对东海原甲藻的协同抑藻效应及机理研究OA
Synergistic algicidal effects and mechanisms of the Ginkgo biloba-nerolidol compound on Prorocentrum donghaiense
本研究以1.0 mg·L-1橙花叔醇与1.0 g·L-1银杏叶浸提液构建复方制剂,测定藻细胞密度、叶绿素荧光参数及细胞膜通透性,探究其联合抑藻机理.结果表明,该复方制剂对东海原甲藻的生长表现出协同抑制作用,96 h抑制率达74.75%,高于单组分单独作用.复方制剂不仅能更强烈地降低藻细胞游动性,还导致其实际光化学量子产率(Fq'/Fm')、光能利用效率(α)及最大相对电子传递速率(rETRmax)急剧且持久地下降.此外,复方制剂还加剧了细胞膜的通透性损伤.因此,复方制剂在抑制藻类光合作用和破坏细胞膜方面发挥了协同作用,具有作为生态友好型赤潮抑制剂的应用潜力.
This study constructed a compound formulation using 1.0 mg·L-1 nerolidol and 1.0 g·L-1 Ginkgo biloba leaf extract,measuring cell density,chlorophyll fluorescence parameters,and cell membrane permeability of Prorocentrum donghaiense to investigate the combined algal inhibition mechanism.The results showed that the compound formulation exerted a synergistic inhibitory effect on the growth of Prorocentrum donghaiense,with a 96 h inhibition rate of 74.75%,which was higher than that of single component.The compound not only more strongly reduced algal cell motility but also induced a sharp and persistent decrease in the actual photochemical quantum yield(Fq'/Fm'),light utilization efficiency(α),and maximum relative electron transport rate(rETRmax).Furthermore,the compound formulation further exacerbated the damage to cell membrane permeability.Therefore,the compound formulation has shown synergistic effects in inhibiting algal photosynthesis and damaging cell membranes,and has the potential to be applied as eco-friendly red tide inhibitors.
申一凡;王文卿;焦福源;戴鑫烽;沈盎绿
上海海洋大学 海洋科学与生态环境学院,上海 201306上海海洋大学 海洋科学与生态环境学院,上海 201306上海海洋大学 海洋科学与生态环境学院,上海 201306自然资源部第二海洋研究所 浙江省近海海洋工程环境与生态安全重点实验室,浙江 杭州 310012上海海洋大学 海洋科学与生态环境学院,上海 201306
农业科技
东海原甲藻银杏橙花叔醇光合系统
Prorocentrum donghaienseGinkgo bilobanerolidolphotosynthetic system
《浙江农业科学》 2026 (8)
1865-1873,9
浙江省近海海洋工程环境与生态安全重点实验室开放研究基金项目(CEEES202306)
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