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富营养化条件下铜绿微囊藻培养生物量对金属离子积累的影响及其与细胞代谢和活力的关系。

Effects of Cellular Metabolism and Viability on Metal Ion Accumulation by Cultured Biomass from a Bloom of the Cyanobacterium Microcystis aeruginosa.

机构信息

Department of Biology and Microbiology, University of Wisconsin Oshkosh, Oshkosh, Wisconsin 54901, and Department of Botany, Banaras Hindu University, Varanasi 221005, India.

出版信息

Appl Environ Microbiol. 1998 Apr;64(4):1545-7. doi: 10.1128/AEM.64.4.1545-1547.1998.

Abstract

The sorption of nickel, cadmium, and copper by cultured biomass from a naturally occurring bloom of Microcystis aeruginosa was demonstrated in two systems: cells suspended in culture medium and cells immobilized in alginate. Incubation in the absence of light, in the presence of metabolic inhibitors, and at 4 degrees C did not substantially decrease the copper accumulation by cells in culture medium. Heat-killed, formaldehyde-treated, and air-dried biomass samples sorbed nearly as much (or in some cases slightly more) copper as did viable samples.

摘要

研究表明,在两种体系中,铜绿微囊藻自然生长形成的生物量都能够吸附镍、镉和铜:一种是悬浮于培养液中的细胞,另一种是固定在藻酸盐中的细胞。在无光照、有代谢抑制剂和在 4°C 条件下孵育,并不会显著降低悬浮培养液中细胞对铜的积累。热灭活、甲醛处理和风干的生物量样本吸附的铜量与活样本几乎相同(在某些情况下略高)。

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