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两种船用防污涂层实海挂片表面细菌群落多样性分析

DOI: 10.3724/SP.J.1145.2013.00471, PP. 471-477

Keywords: 生物膜,船用漆,生物多样性,pcr-rflp,生物腐蚀

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Abstract:

应用16srdna基因文库技术分析了实海全浸15d的两种船用漆a和b表面的细菌多样性.样品a表面附着细菌的otu数为26,分别属于变形菌门和拟杆菌门,其中γ-变形菌为优势菌,占总克隆数的65.1%;样品b表面附着细菌的otu数为27,分别属于变形菌门、拟杆菌门和浮霉菌门,其中优势菌分别为占据总克隆数38.7%的γ-变形菌和39.8%α-变形菌.b表面附着的细菌无论在种类还是数量上都多于a,这表明这种新的环境友好型防污涂料对细菌的杀伤力不如添加氧化亚铜和杀菌剂的传统船用漆.同时,在两种船用漆表面都附着了大量的解环菌属(cycloclasticus)的细菌,这种海洋多环芳香烃(pahs)分解菌是海水中分解萘和菲的关键菌,可以对涂层造成破坏.

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