N、P、Fe、Mn对微小亚历山大藻生长及产毒的影响  

Effects of N,P,Fe and Mn on the growth and toxicity of Alexandrium minutum

作　　者：李昌伟[1] 冯超[1] 江天久[1] 

机构地区：[1]暨南大学赤潮与海洋生物学研究中心、水体富营养化与赤潮防治广东普通高校重点实验室,广东广州510632

出　　处：《海洋环境科学》2014年第3期341-345,共5页Marine Environmental Science

基　　金：国家自然科学基金(41276091);国家海洋公益专项(201305003-2,201305010-4);国家973项目(2010CB428702);国家科技计划(2011BAD14B03)

摘　　要：本文采用L9(34)正交实验分析了NaNO3-N、KH2PO4-P、FeCl3-Fe和MnCl2-Mn对微小亚历山大藻生长及其麻痹性贝毒产生的影响。结果表明,当培养基中N、P、Fe和Mn含量分别为1 764μmol/L,123.6μmol/L,20μmol/L和2.7μmol/L时,显著促进亚历山大藻的生长。当上述4种因子含量分别为1764μmol/L,123.6μmol/L,30μmol/L和1.8μmol/L时,单位体积的产毒量最高,最高为5.31μmol/L。当4种因子含量分别为2 646μmol/L,123.6μmol/L,30μmol/L和1.8μmol/L时,单位细胞的产毒量最高,最高为190 fmol/cell。The effects of nutrients NO3-N,H2PO3-P,FeCl3-Fe and MnCl2-Mn on the growth and toxi- city of batch cultured Alexandrium minutum were studied by L9（34） orthogonal test under laboratory conditions. The results showed that cell density of A. minutum were significantly increased when N,P,Fe and Mn contents were 1764 μmol / L, 123. 6 μmol / L,20 μmol / L and 2. 7 μmol / L,respectively. When N,P,Fe and Mn contents were 1764 μmol / L, 123. 6 μmol / L,30 μmol / L and 1. 8 μmol / L,the highest toxin production of 5. 31 μmol / L was detected. However, the highest toxin production of per cell（190 fmol / cell） was detected under N,P,Fe and Mn contents of 2646 μmol/L,123. 6 μmol/L,30 μmol/L and 1. 8 μmol/L,respectively.

关 键 词：微小亚历山大藻 麻痹性贝毒 生长 N、P、Fe、Mn 

分 类 号：X55[环境科学与工程—环境工程]