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Pb~(2+) impacts on growth of two Spirulina strains
Authors
李勇勇
李善策
+4 more
秦松
赵楠
邵明飞
郁章玉
Publication date
1 January 2013
Publisher
Abstract
以来自两个不同企业产业化的螺旋藻作为出发藻株A、藻株B,从生物量、藻胆蛋白、可溶性蛋白、半数致死浓度4个方面研究藻株对重金属铅离子(Pb2+)的耐受性,为解析耐受机理积累研究基础。实验结果表明,两株藻对Pb2+的耐受性存在明显差异,藻株B比藻株A对铅的耐受性强。藻株A:Pb2+浓度低于1 mg/L,促进其生长;Pb2+浓度为10~40 mg/L,对其无明显影响;Pb2+浓度大于50 mg/L时,抑制其生长;Pb2+浓度为100 mg/L,藻丝体降解死亡;96 h半数致死浓度(EC50)为61.66 mg/L。藻株B:Pb2+浓度低于20 mg/L,对其无明显影响;Pb2+浓度为20 mg/L,..
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Last time updated on 29/11/2016