%0 Journal Article
%T Toxic Effects of Hexavalent Chromium on the Growth of Blue-Green Microalgae<br>六价铬抑制淡水蓝绿藻生长的毒性效应
%A Chen Hailiu
%A Pan Gang
%A Yan Hai
%A Qin Yanwen
%A <br>陈海柳
%A 潘纲
%A 闫海
%A 秦延文
%J 环境科学
%D 2003
%I 
%X A standard method of algal bioassay for determining the toxicity of toxic chemicals was applied to the interaction between Cr(VI) and six blue-green microalgae. The 96h-EC50 of hexavalent chromium on the growth of Chlorella pyrenoidosa, Synechococcus, Spirulina maxima, Spirulina platensis, Selenastrum capriornutum and Scenedesmus quadricauda were 4.96, 6.50, 11.16, 11.74, 12.43 and 20.89 mg/L, respectively. The tolerance of the six blue-green microalgae to Cr(VI) was in the order of Scenedesmus quadricauda > Selenastrum capriornutum > Spirulina platensis > Spirulina maxima > Synechococcus > Chlorella pyrenoidosa. The sensitivity of these species to Cr(VI) might relate to the cell size, the structure of cell wall, as well as the redox reaction caused by the exudate or enzyme. X-ray absorption near edge structure(XANES) was used to study the accumulation and transformation of Cr(VI) in Chlorella pyrenoidosa.
%K hexavalent chromium
%K blue green microalgae
%K toxicity
%K XANES<br>六价铬
%K 蓝绿藻
%K 毒性效应
%K XANES
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=540534E1E2D627CB&yid=D43C4A19B2EE3C0A&vid=B91E8C6D6FE990DB&iid=0B39A22176CE99FB&sid=FC0714F8D2EB605D&eid=13553B2D12F347E8&journal_id=0250-3301&journal_name=环境科学&referenced_num=6&reference_num=16