大连海区潮间带海藻附生细菌的抗真菌活性  

Antifungal activities of epiphytic bacteria from the surfaces of seaweeds in intertidal zone in Dalian

作　　者：马悦欣[1] 于作镇[1] 于书渤[1] 安军[1] 

机构地区：[1]大连水产学院农业部海洋水产增养殖学与生物技术重点开放实验室,辽宁大连116023

出　　处：《大连水产学院学报》2005年第2期87-90,共4页Journal of Dalian Fisheries University

基　　金：辽宁省高校科研资助项目(202130882)

摘　　要：以分离自石莼、浒苔的16株附生真菌作指示菌,采用双层琼脂扩散法,对从石莼Ulvalactuca、孔石莼Ulvapertusa等10种海藻表面分离的79株细菌进行拮抗试验,获得有拮抗活性的菌株47株,占总测试菌株的59.5%。不同海藻表面拮抗细菌的分布比例不同。研究结果表明,海藻表面的附生细菌可能帮助宿主阻止真菌等表面污损生物的附着。Seventy-nine strains of marine bacteria isolated from the surfaces of ten species of seaweeds were tested for antifungal activity by the indictors of sixteen strains of fungi which were isolated from seaweeds Ulva lactuca and Enteromorpha sp. Forty seven bacterial isolates, accounting for 59.5% of the total tested, showed the activities against at least one target fungal strain. The percentages of active bacterial strains were variant among their hosting seaweeds. These results suggest that seaweeds-associated bacteria may help the host against colonization of fouling fungi.

关 键 词：海藻 附生细菌 抗真菌活性 

分 类 号：Q939.1[生物学—微生物学]