

FOLLOWUS
1. Key Laboratory of Biodiversity and Conservation of Aquatic Organisms Institute of Hydrobiology Chinese Academy of Sciences
2. University of Chinese Academy of Sciences
Online First:04 May 2014,
Published:2014
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Zhang, X., Yan, Q., Yu, Y. et al. Spatiotemporal pattern of bacterioplankton in Donghu Lake., Chin. J. Ocean. Limnol. 32, 554–564 (2014). https://doi.org/10.1007/s00343-014-3037-2
Bacterioplankton play key roles in the biogeochemical cycle and in organic contaminant degradation. The species richness and abundance of bacterial subgroups are generally distinct from each other
and this is attributed to their different functions in aquatic ecosystems. The spatiotemporal variations of eight phylogenetic subgroups (Actinobacteria
Bacteroidetes
Cyanobacteria
Firmicutes
Planctomycetes
alpha-
beta-
and gamma-Proteobacteria) derived from Donghu Lake were investigated using PCR-DGGE fingerprinting
to explore their responses to environmental factors. Results indicate that Actinobacteria and beta-Proteobacteria were the two largest bacterial subgroups detected. These two groups and Bacteroidetes showed clear seasonal patterns in composition of the operational taxonomic unit. Results also suggest that the bacterioplankton subgroups in Donghu Lake were significantly correlated with different environmental factors. In brief
the total nitrogen was one of the major factors regulating all the bacterioplankton except for Actinobacteria. However
total phosphorus
another important eutrophication factor
contributed to the two largest bacterial groups (Actinobacteria and beta-Proteobacteria)
as well as to the Cyanobacteria and Firmicutes. Therefore
the responses of bacterioplankton subgroups to environmental factors were different
and this should be attributed to the differences in the functions of different groups.
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