Specific epibacterial communities on macroalgae: phylogeny matters more than habitat
Specific epibacterial communities on macroalgae: phylogeny matters more than habitat
复制标题
DOI：
10.3354/ab00149
复制
发表时间：
2009-01-01
期刊：
影响因子：
1.4
通讯作者：
Wahl, Martin
中科院分区：
文献类型：
--
作者：
Lachnit, Tim;Bluemel, Martina;Wahl, Martin
利用16S核糖体RNA基因为基础的DGGE技术，分析了锯齿墨角藻（Fucus serratus）、泡状墨角藻（Fucus vesiculosus）、海带（Laminaria saccharina）、扁石莼（Ulva compressa）、血红德莱塞藻（Delesseria sanguarum）和红藻（Phycodrys rubens）的菌体表面细菌群落。在基尔峡湾（波罗的海）和黑尔戈兰（北海）的岩石潮间带收集了所有物种的个体。DGGE凝胶以及集群和多维尺度分析的基础上的DGGE带模式的表观细菌群落之间的显着差异，在波罗的海和北海的调查藻类的表观细菌群落。不同地区之间的细菌群落差异小于宿主物种之间的差异，并且在密切相关的宿主物种上更相似。结果给出了第一个证据的谱系特定的细菌协会藻类菌体。此外，结果表明这些藻类可能控制其表生细菌群落。
Epibacterial communities on thalli of the algal species Fucus serratus, Fucus vesiculosus, Laminaria saccharina, Ulva compressa, Delesseria sanguinea and Phycodrys rubens were analysed using 16S ribosomal RNA gene-based DGGE. Individuals of all species were collected in the Kiel Fjord (Baltic Sea) and in the rocky intertidal of Helgoland (North Sea). DGGE gels as well as cluster and multidimensional scaling analysis based on the DGGE band patterns of the epibacterial community showed significant differences between the epibacterial communities on the investigated algal species both in the Baltic and North Seas. Epibacterial communities differed less between regions than between host species, and were more similar on closely related host species. Results give the first evidence for lineage-specific bacterial associations to algal thalli. Furthermore, the results suggest that these algal species may control their epibiotic bacterial communities.