Seasonal variation significantly affected bacterioplankton and eukaryoplankton community composition in Xijiang River, China

Liu, Qianfu; Lai, Zhigang; Wang, Chao; Ni, Jiajia; Gao, Yuan

doi:10.1007/s10661-021-09712-9

Cited by 7 publications

(5 citation statements)

References 59 publications

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“…The LEfSe method is widely used for the comparative analysis of microbiota compositions in various habitats and for the screening of significantly different microorganisms (Xiang et al, 2018;Li et al, 2019b;Li et al, 2019c;Mao et al, 2019;Liu et al, 2022). However, our results showed that this method could not simultaneously compare the differences between two or more treatment groups and the control.…”

Section: Discussionmentioning

confidence: 68%

Strengthening and microbial regulation mechanism of Bacillus on purification device for grass carp culture wastewater

Gao

et al. 2023

Front. Environ. Sci.

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Aquaculture wastewater (AW) poses a threat to natural aquatic environments. Microecological agents are widely used to regulate and purify AW, with Bacillus being the most common. To evaluate the AW purification effect of adding Bacillus subtilis and Bacillus licheniformis to an AW treatment device, we constructed an experimental device including a small grass carp culture pond and three groups of cuboid reactors. The effects of adding the two strains to the AW treatment reactor on the AW purification effect and the microbiota compositions in the AW and packing surface biofilm were analyzed via high-throughput sequencing of the 16S rRNA gene. Our results showed that adding Bacillus bacteria to reactors improved the total nitrogen (TN) removal efficiency and reduced the chemical oxygen demand (COD). Adding both the B. subtillis and B. licheniformis preparations significantly increased the abundance of Firmicutes in the water microbiota of the reactor at the middle and end stages of the experiment. The addition of Bacillus changed the microbiota composition in the water and packing surface biofilm and significantly increased the abundance of Bacillus at the middle and later stages of the experiment. Therefore, the addition of Bacillus improved the TN removal efficiency in the AW grass carp treatment reactors and significantly reduced the COD in the AW by increasing the abundance of Bacillus and changing the microbiota composition in the system. We provide an effective way for improving the purification capacity of biofilm reactor.

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Section: Discussionmentioning

confidence: 68%

Strengthening and microbial regulation mechanism of Bacillus on purification device for grass carp culture wastewater

Gao

et al. 2023

Front. Environ. Sci.

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“…If the WQI is concerned about its indicative effect on aquatic vertebrates, it is recommended to use aquatic vertebrate communities as biological community information. Another issue should be clarified is that we had adopted the DNA high-throughput sequencing technology of 16 S rRNA gene to analyze the bacterioplankton community composition in this study, mainly because this method is widely used to analyze the composition of bacterioplankton community (such as [ 1 , [42] , [43] , [44] , [45] ]. However, this does not mean that other analysis methods of plankton community, such as morphological identification [ 20 , 46 , 47 ], are not applicable to the calculation of WQI b and WQI minb that described in this study.…”

Section: Discussionmentioning

confidence: 99%

“…Rivers and lakes are important components of the Earth's ecosystem, acting as primary links between terrestrial and ocean habitats [ 1 ]. Rivers and lakes provide important water resources for irrigation, and for industrial and domestic purposes [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Method for screening water physicochemical parameters to calculate water quality index based on these parameters’ correlation with water microbiota

Zhang

Wang

et al. 2023

Heliyon

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“…For this project, the Danjiangkou Reservoir’s average water storage level, which serves as a water supply for the MR-SNWDP, was increased from 157 to 170 m. However, the water transfer has interrupted the bacterioplankton communities in the reservoir in some ways [ 28 ]. Bacterioplankton play a significant role in various geochemical cycles and in the transport of carbon to the microbial food web occurring in aquatic ecosystems such as rivers, water channels, reservoirs, and lakes [ 29 , 30 ]. Bacterioplankton communities’ compositions can serve as indicators of aquatic environmental conditions since they are typically responsive to environmental instabilities and water quality [ 15 , 19 , 31 , 32 , 33 ].…”

Section: Discussionmentioning

confidence: 99%

Dynamics of Bacterioplankton Communities during Wet and Dry Seasons in the Danjiangkou Reservoir in Hubei, China

Chen

Zhu

et al. 2023

Life

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Water quality is directly linked to drinking water safety for millions of people receiving the water. The Danjiangkou Reservoir is the main water source for the Middle Route of the South-to-North Water Diversion Project (MR-SNWDP), located in the vicinity of Henan and Hubei provinces in China. Aquatic microorganisms are key indicators of biologically assessing and monitoring the water quality of the reservoir as they are sensitive to environmental and water quality changes. This study aimed to investigate the spatiotemporal variations in bacterioplankton communities during wet (April) and dry (October) seasons at eight monitoring points in Hanku reservoir and five monitoring points in Danku reservoir. Each time point had three replicates, labeled as wet season Hanku (WH), wet season Danku (WD), dry season Hanku (DH), and dry season Danku (DD) of Danjiangkou Reservoir in 2021. High-throughput sequencing (Illumina PE250) of the 16S rRNA gene was performed, and alpha (ACE and Shannon) and beta (PCoA and NDMS) diversity indices were analyzed. The results showed that the dry season (DH and DD) had more diverse bacterioplankton communities compared to the wet season (WH and WD). Proteobacteria, Actinobacteria, and Firmicutes were the most abundant phyla, and Acinetobacter, Exiguobacterium, and Planomicrobium were abundant in the wet season, while polynucleobacter was abundant in the dry season. The functional prediction of metabolic pathways revealed six major functions including carbohydrate metabolism, membrane transport, amino acid metabolism, signal transduction, and energy metabolism. Redundancy analysis showed that environmental parameters greatly affected bacterioplankton diversity during the dry season compared to the wet season. The findings suggest that seasonality has a significant impact on bacterioplankton communities, and the dry season has more diverse communities influenced by environmental parameters. Further, the relatively high abundance of certain bacteria such as Acinetobacter deteriorated the water quality during the wet season compared to the dry season. Our findings have significant implications for water resource management in China, and other countries facing similar challenges. However, further investigations are required to elucidate the role of environmental parameters in influencing bacterioplankton diversity in order to devise potential strategies for improving water quality management in the reservoir.

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Seasonal variation significantly affected bacterioplankton and eukaryoplankton community composition in Xijiang River, China

Cited by 7 publications

References 59 publications

Strengthening and microbial regulation mechanism of Bacillus on purification device for grass carp culture wastewater

Strengthening and microbial regulation mechanism of Bacillus on purification device for grass carp culture wastewater

Method for screening water physicochemical parameters to calculate water quality index based on these parameters’ correlation with water microbiota

Dynamics of Bacterioplankton Communities during Wet and Dry Seasons in the Danjiangkou Reservoir in Hubei, China

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