Different Planctomycetes diversity patterns in latitudinal surface seawater of the open sea and in sediment
Different Planctomycetes diversity patterns in latitudinal surface seawater of the open sea and in sediment
复制标题
公海纬度表层海水和沉积物中浮霉菌的不同多样性模式
DOI：
10.1007/s12275-008-0002-9
复制
发表时间：
2008-04-01
影响因子：
3
通讯作者：
Jiao, Nianzhi
中科院分区：
文献类型：
--
作者：
Shu, Qinglong;Jiao, Nianzhi
应用16 S rRNA基因分析技术对西太平洋不同纬度表层海水浮游真菌多样性进行了研究。结果表明，所有表层海水浮游菌群落均以Pirellula-Rhodopirellula-Blastopirellula分支为主，而Gemmata和Planctomycetra则分别只在H5和H2站点出现。虽然PRB分支的克隆频率似乎稳定（83.3%和94.1%之间）的所有表面海水网站，检索Pirellula-Rhodopirellula-Blastopirellula分支呈现出意想不到的多样性。有趣的是，低纬度海水似乎比中纬度海水具有更高的多样性。Integral-LIBSHUFF软件分析表明，南海M2896站表层海水和沉积物中的物种多样性格局存在显著差异。我们的数据表明，不同的水文和地理特征的海洋环境中的浮游真菌多样性的转变。据我们所知，这是第一个系统的评估浮游菌在纬度表层海水的公海和表层海水和沉积物之间的多样性模式的第一个比较，并扩大了我们的理解浮游菌多样性在海洋环境。
The 16S rRNA gene approach was applied to investigate the diversity of Planctomycetes in latitudinal surface seawater of the Western Pacific Ocean. The results revealed that the Pirellula-Rhodopirellula-Blastopirellula clade dominated the Planctomycetes community at all surface seawater sites while the minority genera Gemmata and Planctomyces were only found at sites H5 and H2 respectively. Although the clone frequency of the PRB clade seemed stable (between 83.3% and 94.1%) for all surface seawater sites, the retrieved Pirellula-Rhodopirellula-Blastopirellula clade presented unexpected diversity. Interestingly, low latitude seawater appeared to have higher diversity than mid-latitudes. integral-LIBSHUFF software analysis revealed significantly different diversity patterns between in latitudinal surface seawater and in the sediment of South China Sea station M2896. Our data suggested that different hydrological and geographic features contributed to the shift of Planctomycetes diversity in marine environments. This is, to our knowledge, the first systematic assessment of Planctomycetes in latitudinal surface seawater of the open sea and the first comparison of diversity pattern between surface seawater and sediments and has broadened our understanding of Planctomycetes diversity in marine environments.