Cargando…

Temporal and Spatial Diversity of Bacterial Communities in Coastal Waters of the South China Sea

Bacteria are recognized as important drivers of biogeochemical processes in all aquatic ecosystems. Temporal and geographical patterns in ocean bacterial communities have been observed in many studies, but the temporal and spatial patterns in the bacterial communities from the South China Sea remain...

Descripción completa

Detalles Bibliográficos
Autores principales: Du, Jikun, Xiao, Kai, Li, Li, Ding, Xian, Liu, Helu, Lu, Yongjun, Zhou, Shining
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3681761/
https://www.ncbi.nlm.nih.gov/pubmed/23785512
http://dx.doi.org/10.1371/journal.pone.0066968
_version_ 1782273316943298560
author Du, Jikun
Xiao, Kai
Li, Li
Ding, Xian
Liu, Helu
Lu, Yongjun
Zhou, Shining
author_facet Du, Jikun
Xiao, Kai
Li, Li
Ding, Xian
Liu, Helu
Lu, Yongjun
Zhou, Shining
author_sort Du, Jikun
collection PubMed
description Bacteria are recognized as important drivers of biogeochemical processes in all aquatic ecosystems. Temporal and geographical patterns in ocean bacterial communities have been observed in many studies, but the temporal and spatial patterns in the bacterial communities from the South China Sea remained unexplored. To determine the spatiotemporal patterns, we generated 16S rRNA datasets for 15 samples collected from the five regularly distributed sites of the South China Sea in three seasons (spring, summer, winter). A total of 491 representative sequences were analyzed by MOTHUR, yielding 282 operational taxonomic units (OTUs) grouped at 97% stringency. Significant temporal variations of bacterial diversity were observed. Richness and diversity indices indicated that summer samples were the most diverse. The main bacterial group in spring and summer samples was Alphaproteobacteria, followed by Cyanobacteria and Gammaproteobacteria, whereas Cyanobacteria dominated the winter samples. Spatial patterns in the samples were observed that samples collected from the coastal (D151, D221) waters and offshore (D157, D1512, D224) waters clustered separately, the coastal samples harbored more diverse bacterial communities. However, the temporal pattern of the coastal site D151 was contrary to that of the coastal site D221. The LIBSHUFF statistics revealed noticeable differences among the spring, summer and winter libraries collected at five sites. The UPGMA tree showed there were temporal and spatial heterogeneity of bacterial community composition in coastal waters of the South China Sea. The water salinity (P=0.001) contributed significantly to the bacteria-environment relationship. Our results revealed that bacterial community structures were influenced by environmental factors and community-level changes in 16S-based diversity were better explained by spatial patterns than by temporal patterns.
format Online
Article
Text
id pubmed-3681761
institution National Center for Biotechnology Information
language English
publishDate 2013
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-36817612013-06-19 Temporal and Spatial Diversity of Bacterial Communities in Coastal Waters of the South China Sea Du, Jikun Xiao, Kai Li, Li Ding, Xian Liu, Helu Lu, Yongjun Zhou, Shining PLoS One Research Article Bacteria are recognized as important drivers of biogeochemical processes in all aquatic ecosystems. Temporal and geographical patterns in ocean bacterial communities have been observed in many studies, but the temporal and spatial patterns in the bacterial communities from the South China Sea remained unexplored. To determine the spatiotemporal patterns, we generated 16S rRNA datasets for 15 samples collected from the five regularly distributed sites of the South China Sea in three seasons (spring, summer, winter). A total of 491 representative sequences were analyzed by MOTHUR, yielding 282 operational taxonomic units (OTUs) grouped at 97% stringency. Significant temporal variations of bacterial diversity were observed. Richness and diversity indices indicated that summer samples were the most diverse. The main bacterial group in spring and summer samples was Alphaproteobacteria, followed by Cyanobacteria and Gammaproteobacteria, whereas Cyanobacteria dominated the winter samples. Spatial patterns in the samples were observed that samples collected from the coastal (D151, D221) waters and offshore (D157, D1512, D224) waters clustered separately, the coastal samples harbored more diverse bacterial communities. However, the temporal pattern of the coastal site D151 was contrary to that of the coastal site D221. The LIBSHUFF statistics revealed noticeable differences among the spring, summer and winter libraries collected at five sites. The UPGMA tree showed there were temporal and spatial heterogeneity of bacterial community composition in coastal waters of the South China Sea. The water salinity (P=0.001) contributed significantly to the bacteria-environment relationship. Our results revealed that bacterial community structures were influenced by environmental factors and community-level changes in 16S-based diversity were better explained by spatial patterns than by temporal patterns. Public Library of Science 2013-06-13 /pmc/articles/PMC3681761/ /pubmed/23785512 http://dx.doi.org/10.1371/journal.pone.0066968 Text en © 2013 Du et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Du, Jikun
Xiao, Kai
Li, Li
Ding, Xian
Liu, Helu
Lu, Yongjun
Zhou, Shining
Temporal and Spatial Diversity of Bacterial Communities in Coastal Waters of the South China Sea
title Temporal and Spatial Diversity of Bacterial Communities in Coastal Waters of the South China Sea
title_full Temporal and Spatial Diversity of Bacterial Communities in Coastal Waters of the South China Sea
title_fullStr Temporal and Spatial Diversity of Bacterial Communities in Coastal Waters of the South China Sea
title_full_unstemmed Temporal and Spatial Diversity of Bacterial Communities in Coastal Waters of the South China Sea
title_short Temporal and Spatial Diversity of Bacterial Communities in Coastal Waters of the South China Sea
title_sort temporal and spatial diversity of bacterial communities in coastal waters of the south china sea
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3681761/
https://www.ncbi.nlm.nih.gov/pubmed/23785512
http://dx.doi.org/10.1371/journal.pone.0066968
work_keys_str_mv AT dujikun temporalandspatialdiversityofbacterialcommunitiesincoastalwatersofthesouthchinasea
AT xiaokai temporalandspatialdiversityofbacterialcommunitiesincoastalwatersofthesouthchinasea
AT lili temporalandspatialdiversityofbacterialcommunitiesincoastalwatersofthesouthchinasea
AT dingxian temporalandspatialdiversityofbacterialcommunitiesincoastalwatersofthesouthchinasea
AT liuhelu temporalandspatialdiversityofbacterialcommunitiesincoastalwatersofthesouthchinasea
AT luyongjun temporalandspatialdiversityofbacterialcommunitiesincoastalwatersofthesouthchinasea
AT zhoushining temporalandspatialdiversityofbacterialcommunitiesincoastalwatersofthesouthchinasea