Algae-lysing Effect of Algicidal Bacteria on Microcystis in Bloom Water

• Published in: 气象与环境研究：英文版 no. 6; pp. 29 - 32
• Main Author: Fan Qianlong Zhang Hengfeng Huang Juan Zhao Liang Xu Jun Jia Zijing Liang Wenyan
• Format: Journal Article
• Language: English
• Published: 2016
• ISSN: 2152-3940

The Microcystis sample was selected from natural bloom water,then the algicidal effects of the bacterial strain fluid of the two algicidal bacteria,supernatant and bacterial liquid were studied. Moreover,the changes of microalgae colony and morphology in the process of algae-lysing were observed using neutral red staining and scanning electron microscope. It showed that AA06 bacteria had certain algicidal effect while AA10 bacteria had no effect. All the supernatants of the two bacterial strains had obvious algicidal effects,and the algicidal effects between the bacterial liquid and supernatant had no significant differences( P < 0. 05). The effects of algae-lysing mainly owed to the chemical substances secreted by algicidal bacteria. During the algae-lysing process,the algae colony did not disperse into individual cells. The segments of the dead cells still aggregated together.