凤眼莲对铜绿微囊藻生理、细胞结构及藻毒素释放与削减的影响.pdf
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江苏农业学报(JiangsuJ.of Agr.Sci.),2016,32(2):376~382
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杨小杰,韩士群,唐婉莹,等. 凤眼莲对铜绿微囊藻生理、细胞结构及藻毒素释放与削减的影响[J].江苏农业学报,2016,32
(2):376⁃382.
doi:10.3969/ j.issn.1000⁃4440.2016.02.022
凤眼莲对铜绿微囊藻生理、细胞结构及藻毒素释放与
削减的影响
1,2 2 1 2 2
杨小杰 , 韩士群 , 唐婉莹 , 严少华 , 周 庆
(1.南京理工大学化工学院,江苏 南京 210094; 2.江苏省农业科学院农业资源与环境研究所,江苏 南京 210014)
摘要: 通过共培养试验,研究了凤眼莲对产毒铜绿微囊藻生长和毒素释放的影响。 结果表明,凤眼莲与铜绿
微囊藻共培养有效抑制了铜绿微囊藻的生长,加速了它的衰亡。 凤眼莲严重破坏藻细胞的超氧化物歧化酶(SOD)
系统,共培养6 d后藻细胞SOD活性降至 (267±168) U/ mg,导致超氧阴离子自由基未能及时转化。 在凤眼莲影
响下,共培养4 d时铜绿微囊藻细胞就出现萎缩现象,类囊体片层结构出现溶解,细胞ATP水平持续快速下降。 与
无凤眼莲空白对照相比,凤眼莲的存在使铜绿微囊藻毒素(MC⁃LR 和MC⁃RR)的释放量显著降低,削减速度显著
加快。
关键词: 凤眼莲; 铜绿微囊藻; 藻毒素释放; 藻毒素削减
中图分类号: X52 文献标识码: A 文章编号: 1000⁃4440(2016)02⁃0376⁃07
Physiological characteristics and cell structure of Microcystis aeruginosa
and microcystin release andreductioninEichhornia crassipes⁃grownwater
1,2 2 1 2 2
YANG Xiao⁃jie , HAN Shi⁃qun , TANG Wan⁃ying , YAN Shao⁃hua , ZHOU Qing
(1. Schoolof ChemicalEngineering,Nanjing University of Scienceand Technology,Nanjing 210094,China; 2.Instituteof AgriculturalResourceandEn⁃
vironment,JiangsuAcademy of Agricultural Sciences,Nanjing 210014,China)
Abstract: The influence of co⁃cultured Eichhornia crassipes on physiological characteristics and cell structure of
Microcystic aeruginosa and different types of microcystins release and reduction were studied. E. crassipes inhibited the
growth of M. aeruginosa and accelerated itsdeath.E. crassipes also damagedthe superoxide dismutase (SOD) enzyme sys⁃
tem of M. aeruginosa severely;theSOD activity of co⁃cultured algal cells decreased to (267 ± 168) U/
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