不同外源条件对4种白腐真菌溶藻效果的影响

Algicidal effect of four kinds of white-rot fungi on Microcystis aeruginosa under different exogenous conditions

摘要:

【目的】评价白腐真菌Irpex lacteus XX-5、Trichaptum abietinum 1302BG、Ceriporia lacerata P2、Bjerkandera adusta XX-2处理铜绿微囊藻废水的应用潜力。【方法】采用分批次实验研究pH、温度、铜绿微囊藻浓度、金属离子、氮源、磷源对白腐真菌I. lacteus XX-5、T. abietinum 1302BG、C. lacerata P2、B. adusta XX-2溶解铜绿微囊藻的影响。【结果】在不同外源条件下，4种白腐真菌对铜绿微囊藻的抑制效果明显，均达60%以上。菌株C. lacerata P2和B. adusta XX-2受外源条件的影响很小，菌株C. lacerata P2的抑制率达70%以上，菌株B. adusta XX-2的抑制率达60%以上；菌株T. abietinum 1302BG、I. lacteus XX-5在不同外源条件下抑制率均会发生相应的变化，但抑藻率均可达60%以上。【结论】研究所使用的4种白腐真菌对抑制铜绿微囊藻具有较好的应用潜力，尤其是菌株C. lacerata P2和B. adusta XX-2。

Abstract:

[Objective] In order to evaluate the application potential of white-rot fungi Irpex lacteus XX-5, Trichaptum abietinum 1302BG, Ceriporia lacerata P2 and Bjerkandera adusta XX-2 in treating Microcystis aeruginosa. [Methods] Batch experiments were carried out to study the effect of pH, temperature, concentration of M. aeruginosa, metal ions, nitrogen source and phosphorus source on inhibition of M. aeruginosa by whiter-rot fungi. [Results] The results showed that under different exogenous conditions, four white fungi all showed good inhibition effect, achieving 60% of inhibiting rate. C. lacerata P2 and B. adusta XX-2 strains were less effected by environmental factors, and the inhibiting rates of both strains were over 70% and 60% respectively. The algal inhibiting rate of T. abietinum 1302BG and I. lacteus XX-5 could be slightly affected by experimental factors, however the inhibiting rates were still over 60%. [Conclusion] Therefore, the four white-rot fungi, especially for C. lacerata P2 and B. adusta XX-2, had a good potential for inhibiting M. aeruginosa.