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首页> 外文期刊>African Journal of Biotechnology >Inhibition of Microcystis aeruginosa and microcystin-LR with one algicidal bacterium isolated from a eutrophic lake
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Inhibition of Microcystis aeruginosa and microcystin-LR with one algicidal bacterium isolated from a eutrophic lake

机译：从富营养化湖中分离出的一种杀藻细菌对铜绿微囊藻和微囊藻毒素-LR的抑制作用

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Toxic?Microcystis aeruginosa?blooms?have been increased in freshwater body in China in recent years. The discovery of algicidal bacteria has brought renewed attention in the treatment of the harmful algae blooms (HABs). In this?study, one strain of algicidal bacterium number SDK2 was selected from a eutrophic lake and its inhibition effects on?M. aeruginosa?and microcystin-LR released by?M. aeruginosawas studied. The algicidal activity showed that the strain SDK2 had significant algicidal efficiency on?M. aeruginosa. The removal rate of chlorophyll a increased when the bacterial cell density increased and it reached a maximum of 80%. It inhibited?M. aeruginosa?indirectly by releasing extracellular algicidal matter. It also had good degradation effects on microcystin-LR and the removal rate was 65%. According to the?physiological and biochemical characteristics and the16S rDNA sequencing analysis of the strain SDK2, it was identified as?Ochrobactrum?sp.
机译：近年来，中国淡水体内毒性铜绿微囊藻的数量有所增加。杀藻细菌的发现引起了人们对有害藻华（HABs）的治疗的新关注。本研究从富营养化的湖泊中选出一株杀藻力为SDK2的杀菌菌株，并对其抑菌作用进行了研究。 M释放的铜绿假单胞菌和微囊藻毒素-LR。铜绿泽。杀藻活性表明SDK2菌株对ΔM具有显着的杀藻效率。铜绿。当细菌细胞密度增加时，叶绿素a的去除率增加，最高达到80％。它抑制了吗？铜绿假单胞菌通过释放细胞外杀藻剂而间接产生。它还对微囊藻毒素-LR具有良好的降解作用，去除率为65％。根据SDK2菌株的生理生化特性和16S rDNA序列分析，确定为？曲霉。

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