Abstract:For the sake of further research on Algae-lytic effect of YZ which was isolated from a lake in Qingdao, The algae-lytic influences of different content of YZ bacteria-free filtrate on the growth of M.aeruginosa FACHB469, the content of chlorophyll and malondialdehyde(MDA), superoxide dismutase (SOD) activity, the actual photochemical efficiency of PS Ⅱin the light (ΦPSⅡ=yield), the maximal relative electron transport rate (Pm), light use efficiency (α) in M. aeruginosa FACHB469were studied. In a certain range, the content of YZ bacteria-free filtrateYZ was in direct ratio with the effect of algae-lying. When more than 10mL bacteria-free filtrate was added into 100mL M.aeruginosa, it did not only inhibit the growth of FACHB469significantly, but also caused the MDA contents increased, the activity of SOD was enhanced in 6and 72hours. Besides, the yield, Pm and α were decreased obviously. Algae lysis of YZ was mainly attributed to the decreased activity of SOD, the enhancement in the liqid peroxidation of the cellular membrane and the photosynthetic inhibition of M.aeruginosa.
牛丹丹, 郑青松, 刘兆普, 张娜, 汪辉, 姚瑶. 溶藻细菌YZ对铜绿微囊藻的溶藻特性研究[J]. 中国环境科学, 2011, 31(2): 321-326.
NIU Dan-Dan, ZHENG Qing-Song, LIU Zhao-Pu, ZHANG Na, WANG Hui, YAO Yao. Algicidal effect of an algae-lysing bacterium YZ on Microcystis aeruginosa. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(2): 321-326.