科研之友
微信
新浪微博
Facebook
分享链接
摘要
The application of "biologic chain" in the algae control is a promising technology. The discovery and exploration of bacterial strains with new functions are conducive to achieving the algae control. In this study, a strain of algicidal bacteria TL was isolated and identified. Algicidal effects of TL on Microcystis aeruginosa were further studied. The results demonstrated that the bacteria-algae ratio had a significant impact on algicidal effects. When the bacteria-algae ratio was higher than 10%, an algicidal efficiency over 62.45% can be achieved. Illumination conditions affected the algicidal effects of TL as well. In illumination and darkness cycling, the optimum algicidal effects were realized. TL may kill algae through the secretion of certain extracellular nonprotein substance. Physiological and biochemical experiments as well as 16S rDNA analysis identified that TL can be categorized as the Lysinibacillus fusiformis. This research may provide technical basis for biological algae control of Microcystis aeruginosa.
