Physiological effects of nickel chloride on the freshwater cyanobacterium Synechococcus sp. IU 625.
Physiological effects of nickel chloride on the freshwater cyanobacterium Synechococcus sp. IU 625.
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DOI：
10.4236/abb.2013.47a2002
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发表时间：
2013-07
期刊：
影响因子：
--
通讯作者：
Chu TC
中科院分区：
文献类型：
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作者：
Nohomovich B;Nguyen BT;Quintanilla M;Lee LH;Murray SR;Chu TC
有害藻华是一个严重的全球性环境问题。蓝藻是有害藻华的主要病原体之一，在重金属污染地区生长的能力是对环境恢复计划的挑战。一些蓝藻会分泌毒素，如微囊藻毒素，对动物和人类都有潜在的危险。在这项研究中，蓝藻的生理评估暴露于氯化镍。在整个研究过程中监测了不同氯化镍浓度（0、10、25或50 mg/L）下的细胞生长情况。显微图像分析观察形态学异常。采用电感耦合等离子体质谱法（ICP-MS）对镍在生长期间的分布进行了追踪。该研究揭示了淡水蓝藻对镍的潜在反应机制，可能有助于制定有效的赤潮防治策略。
Harmful algal blooms (HABs) are a serious environmental problem globally. The ability of cyanobacteria, one of the major causative agents of HABs, to grow in heavy metal polluted areas is proving a challenge to environmental restoration initiatives. Some cyanobacteria secrete toxins, such as microcystin, that are potentially dangerous to animals and humans. In this study, the physiology of a cyanobacterium was assessed to nickel chloride exposure. Cell growths were monitored throughout the study with various nickel chloride concentrations (0, 10, 25 or 50 mg/L). Morphological abnormalities were observed with microscopic image analyses. Inductively coupled plasma mass spectrometry (ICP-MS) was carried out to trace the distribution of nickel during the growth period. This study provides insight on potential nickel response mechanisms in freshwater cyanobacteria, which may lead to effective HAB prevention strategy development.