夏季太湖梅梁湾水体中细菌的群落结构

摘要

In order to explore the prokaryotic community during summer in Meiliang Bay,Lake Taihu,we performed high-throughput sequencing of the 16S rRNA genes V6 hypervariable regions.The results showed that a total of 101 427 quality reads (bacterial reads 100 935,99.5%)were obtained.Bacteria were found belonging to 14 phyla,55 genera,and 610 OTUs.At the phylum lev-el,the bacterial community composition was predominated by Cyanobacteria (39.7%),Actinobacteria (27.2%),Proteobacteria (23.4%).At the genus level,Microcystis(21 .0%)and Synechococcus(15.9 %)was the most abundant genus.%利用高通量测序技术，选择16S rRNA V6区作为目标片段，对夏季太湖梅梁湾水体中的细菌群落结构进行了分析，结果表明，共产生了101427条优质序列，细菌为100935条，占99．5％；在蓝藻暴发期间，共检测到14门，55属，610个操作分类单位。优势门类为蓝藻门（39．7％），放线菌门（27．2％）和变形菌门（23．4％），微囊藻属（21．0％）和聚球藻属（15．9％）为主要优势种。