The Inhibitory Activities of Pistia Stratiotes L. on Three Cya-nobacteria Species
>Co-culture experiments and exudation experiments were designed to explore the allelopathic effects of Pistia stratiotes L. on three cyanobacteria species (Microcystis aeruginosa, Aphanizomenon flosaquae and Anabaena flosaquae). The results showed that P. stratiotes L. can inhibited the growth of these three cyanobacteria species. The inhibitory activities was appeared from the third day and became stronger till the 7th day, the inhibitory rate exceed 90% in co-cultured experiments at the end of experiments. After six days experiments, the growth of three cyanobacteria was inhibited by the exudation of 20 g/L P. stratiotes L., the inhibition rate reached 72.3% for M. aeruginosa, 73.8% for Ap. flosaquae and 86.5% for An. flosaquae. Comparing the algae growth inhibitory rate of co-culture experiment and exudation experiment, the algae inhibitory rate of co-culture system was higher than exudation treatment, which probably because the plant can secretes the chemical compounds continuously while the allelochemicals in exudation are degraded.
文章引用: 张胜花 , 刘烨 , 孙珮石 (2013) 大漂对几种常见水华蓝藻的抑制作用研究。 环境保护前沿， 3， 40-44. doi: 10.12677/AEP.2013.31B010
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