安徽农业科学2011，Vol.39Issue(29)：18121-18124,4.
一株水华鱼腥藻溶藻菌的分离鉴定及菌藻关系初探
Identification of an Algae-lysing Bacterium of Anabaena flosaquae and Primary Research on Their Relationship
摘要
Abstract
[Objective] The aim was to explore the relationship between alage-lysing bacterium and Anabaena flosaquae so as to provide reference for the control of bloom. [Method] An algae-lysing bacterium strain named S7 was isolated from eutrophic river. The lytic efficiency and performing mode of S7 strain to Anabaena flosaquae was studied. Influence of different environmental factors and the relationship between S7 strain and Anabaena flosaquae was also studied, and then the bacterium strain was physiologically identified. [ Result] More than 90% of Anabaena flosaquae had been removed by 7 d when the volume ratio of medium to algae solution was 30% , the pH was 9 and the temperature was 35 ℃. These results also showed that a mutual inhibit relationship existed between S7 strain and Anabaena flosaquae. The S7 strain killed the algae by indirectly through certain lytic agents in absence of direct contact with the target but by secreting metabolites. Moreover, these lytic agents also had the thermostability. 16S rDNA sequence analysis showed that S7 strain belonged to Chryseobactenum sp.. [Conclusion] The examine Poly-p proved that S7 strain was polyphosphate accumulating bacteria(PAOs) and produced better lytic efficiency.关键词
溶藻细菌/水华鱼腥藻/溶藻特性/菌藻关系/金黄杆菌Key words
Algae-lysing bacterium/Anabaena flosaquae/Algae-lysing character/Chryseobacterium分类
农业科技引用本文复制引用
叶姜瑜,钟以蓉,俞岚,李文娟..一株水华鱼腥藻溶藻菌的分离鉴定及菌藻关系初探[J].安徽农业科学,2011,39(29):18121-18124,4.基金项目
三峡工程生态环境建设与保护试点示范专项计划. （）
