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Position: Home > Articles > STUDY ON THE TOXICITY OF BLUE-GREEN ALGAL BLOOMS IN DONGHU LAKE. Ⅱ. SEASONAL VARIATION OF TOXICITY AND CHARACTERISTICS OF MICROCYSTIS TOXIN Acta Hydrobiologica Sinica 1989 (3) 201-209

东湖蓝藻水华毒性的研究 Ⅱ.季节变化及微囊藻的毒性

作  者:
何振荣;俞家禄;何家苑;张甫英;俞敏娟
单  位:
中国科学院水生生物研究所
关键词:
蓝藻水华;毒性;季节变化
摘  要:
1984年至1986年间武汉东湖(包括湖边池塘)的水华有7种,即铜绿微囊藻、大型铜绿微囊藻、边缘微囊藻、水华鱼腥藻、卷曲鱼腥藻、美丽颤藻和束丝藻。经生物测定,除束丝藻未测、卷曲鱼腥藻和美丽颤藻未测出毒性外,其余4种皆为有毒水华。东湖的水华随着季节变化而有不同类型的更迭,其出现格局为:卷曲鱼腥藻、微囊藻、颤藻、微囊藻。微囊藻水华的毒性在不同季节也有较大差异,毒性最低在8—9月份,最高在12月份(LD_(50)=24mg/kg鼠重),随着温度的降低而提高。讨论了某些环境参数与微囊藻水华形成及其毒性变化的关系。此外,还用脑内注射和腹腔注射方法,研究了微囊藻毒素的毒性表现。
译  名:
STUDY ON THE TOXICITY OF BLUE-GREEN ALGAL BLOOMS IN DONGHU LAKE. Ⅱ. SEASONAL VARIATION OF TOXICITY AND CHARACTERISTICS OF MICROCYSTIS TOXIN
作  者:
He Zhenrong, Yu Jialu, He Jiawan, Zhang Fuying and Yu Minjuan (Institute of Hydrobiology, Academia Sinica, Wuhan)
关键词:
Blue-green algal bloom, Toxicity, Seasonal variation
摘  要:
The blue-green algal blooms in Donghu Lake are formed by seven species: Microcystis aeruginosa, Microcystis aeruginosa var. major, Microcystis marginata, Anabaena circinalis, Anabaena flos-aquae, Oscillatoria formosa and Aphanizomenon sp. Through bioassay, we found that blooms of M. aeruginosa, M. aeruginosa var. major, M. marginata and A. flos-aquae are toxic, while those of A. circinalis and O. formosa are non-toxic. The toxicity and pigments of the water-bloom varied with seasons. From August to September, the Microcystis bloom showed the lowest toxicity, while the highest toxicity was detected in December (LD_(50) 24.4mg/kg mouse wt.). Studies of the pharmacological characteristics of the toxin and the comparison of the clinical symptoms induced by these toxins through different routes ( intracerebral and intraperitoneal) have also been made.

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