Study on microbial diversity in Daihai lake,Inner Mongolia
XU Chaoqun
XUE Junzeng
WANG Qiong
WU Huixian
Abstract：Microbial community and diversity of water and sediment samples were investigated by the 16S rRNA gene based on a high-throughput sequencing platform.Results showed that the species anno-tation OTU(Operational taxonomic unit)numbers of Daihai water and sediments were 3 253 and 640 respectively,and the bacterial community in the sediments are more diverse than that in the water body.The bacteria species in the sediments of Daihai Lake belong to 58 phyla(782 genera),and the dominant groups are Proteobacteria(49％),Bacteroidetes(11),Chloroflexi(8％)and Firmicutes(6％).The bacteria in the water are assigned to 29 phyla and 318 genera,and the dominant populations are Actinobacteria(45％),Proteobacteria(26％),Bacteroidetes(16％)and Tenericutes(13％).ANOSIM test showed that there was a significant difference in the bacterial community structure be-tween the sediment and the water samples of Daihai Lake.Salinity is a major constraint to the bacterial diversity in lakes.The higher abundance of Proteobacteria,Bacteroidetes,cyanobacteria,Planctomyce-tes,which showed the deterioration trend of water samples.
Keywords：Daihaibrackish lakebacterial diversitydominant species
Publication Date：2023-12-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 75-82 )