Dynamics of Bacterial and Fungal Communities during the Outbreak and Decline of an Algal Bloom in a Drinking Water Reservoir

International Journal of Environmental Research and Public Health
Hai-han ZhangXinxin Ma

Abstract

The microbial communities associated with algal blooms play a pivotal role in organic carbon, nitrogen and phosphorus cycling in freshwater ecosystems. However, there have been few studies focused on unveiling the dynamics of bacterial and fungal communities during the outbreak and decline of algal blooms in drinking water reservoirs. To address this issue, the compositions of bacterial and fungal communities were assessed in the Zhoucun drinking water reservoir using 16S rRNA and internal transcribed spacer (ITS) gene Illumina MiSeq sequencing techniques. The results showed the algal bloom was dominated by Synechococcus, Microcystis, and Prochlorothrix. The bloom was characterized by a steady decrease of total phosphorus (TP) from the outbreak to the decline period (p < 0.05) while Fe concentration increased sharply during the decline period (p < 0.05). The highest algal biomass and cell concentrations observed during the bloom were 51.7 mg/L and 1.9×108 cell/L, respectively. The cell concentration was positively correlated with CODMn (r = 0.89, p = 0.02). Illumina Miseq sequencing showed that algal bloom altered the water bacterial and fungal community structure. During the bloom, the dominant bacterial genus were Acinetobact...Continue Reading

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Citations

Feb 15, 2020·International Journal of Environmental Research and Public Health·Miaomiao YanXin Huang
Oct 17, 2019·International Journal of Molecular Sciences·Jing TuZuhong Lu
Nov 18, 2020·Environmental Microbiology·Taylor PriestMarlis Reich
Aug 21, 2020·FEMS Microbiology Ecology·M R SchiaffinoM Reissig

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Methods Mentioned

BETA
atomic absorption spectrometry
PCR
amplicon sequencing

Software Mentioned

Quantitative Insights Into Microbial Ecology ( QIIME
CANOCO
MOTHUR
SPSS
QIIME
R
BLAST

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