Biological responses to recent eutrophication and hydrologic changes in Xingyun Lake, southwest China

Liu, Yuanyuan; Chen, Guangjie; Hu, Kui; Shi, Haibin; Huang, Linpei; Chen, Xiaolin; Lü, Huibin; Zhao, Shuai-Ying; Chen, Li

doi:10.1007/s10933-017-9952-4

Cited by 19 publications

(8 citation statements)

References 76 publications

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“…The plateau lake ecosystems are vulnerable and not easily restored once damaged because of the relatively low rate of water exchange and resilience, and the steep and little-developed lakeshores (Wang and Dong, 1998; Liao et al, 2016). In the past few decades, some of these lakes have been seriously damaged by intensification of human activities, leading to deterioration of water quality and degradation of ecosystem function (Li W. et al, 2017; Liu et al, 2017; Gao et al, 2018; Wu et al, 2019). Eutrophication is one of the biggest of such challenges; it changes the diversity and composition of lake organisms and poses a serious threat to ecosystem service function (Liu et al, 2012; Shi et al, 2016; Dong et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Trophic Status Is Associated With Community Structure and Metabolic Potential of Planktonic Microbiota in Plateau Lakes

Shen

Ren

et al. 2019

Front. Microbiol.

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Microbes in various aquatic ecosystems play a key role in global energy fluxes and biogeochemical processes. However, the detailed patterns on the functional structure and the metabolic potential of microbial communities in freshwater lakes with different trophic status remain to be understood. We employed a metagenomics workflow to analyze the correlations between trophic status and planktonic microbiota in freshwater lakes on Yun-Gui Plateau, China. Our results revealed that microbial communities in the eutrophic and mesotrophic-oligotrophic lake ecosystems harbor distinct community structure and metabolic potential. Cyanobacteria were dominant in the eutrophic ecosystems, mainly driving the processes of aerobic respiration, fermentation, nitrogen assimilation, nitrogen mineralization, assimilatory sulfate reduction and sulfur mineralization in this ecosystem group. Actinobacteria, Proteobacteria (Alpha-, Beta-, and Gammaproteobacteria), Verrucomicrobia and Planctomycetes, occurred more often in the mesotrophic-oligotrophic ecosystems than those in the eutrophic ecosystems, and these taxa potentially mediate the above metabolic processes. In these two groups of ecosystems, a difference in the abundance of functional genes involved in carbohydrate metabolism, energy metabolism, glycan biosynthesis and metabolism, and metabolism of cofactors and vitamins significantly contribute to the distinct functional structure of microbiota from surface water. Furthermore, the microbe-mediated metabolic potentials for carbon, nitrogen and sulfur transformation showed differences in the two ecosystem groups. Compared with the mesotrophic-oligotrophic ecosystems, planktonic microbial communities in the eutrophic ecosystems showed higher potential for aerobic carbon fixation, fermentation, methanogenesis, anammox, denitrification, and sulfur mineralization, but they showed lower potential for aerobic respiration, CO oxidation, nitrogen fixation, and assimilatory sulfate reduction. This study offers insights into the relationships of trophic status to planktonic microbial community structure and its metabolic potential, and identifies the main taxa responsible for the biogeochemical cycles of carbon, nitrogen and sulfur in freshwater lake environments.

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Section: Introductionmentioning

confidence: 99%

Trophic Status Is Associated With Community Structure and Metabolic Potential of Planktonic Microbiota in Plateau Lakes

Shen

Ren

et al. 2019

Front. Microbiol.

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“…540other shallow lakes(McGowan et al, 2005). Previous studies show that hydrologic fluctuation 541 could serve as a key driver of algae in nutrient-enriched shallow lakes through increasing benthic 542 production, or even overiding nutrients in structuring diatom 543 composition(Liu et al, 2017). More recently, water level drops may have exposed more benthic544 habitats (e.g.…”

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confidence: 99%

Hydrological fluctuations modulate phototrophic responses to nutrient fertilization in a large and shallow lake of Southwest China

Chen

Gregory‐Eaves

et al. 2019

Aquat Sci

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“…Lake Funda response followed the most widespread form of immediate action to water nutrient enrichment (Vitousek et al, 1997). The increase in nutrient levels led to a loss of biological diversity (e.g., Liu et al, 2017;Lotter, 2001;Witak et al, 2017) and major alterations in the community structure, especially of primary producers (Sommer, 1989) (Fig. S3, Fig.…”

Section: Phase a (From 950 ± 50 To 1330 ± 40 Ce) -Baseline Conditions...mentioning

confidence: 99%

The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket

Ritter¹,

Gonçalves

Pla-Rabés

et al. 2022

Science of The Total Environment

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Biological responses to recent eutrophication and hydrologic changes in Xingyun Lake, southwest China

Cited by 19 publications

References 76 publications

Trophic Status Is Associated With Community Structure and Metabolic Potential of Planktonic Microbiota in Plateau Lakes

Trophic Status Is Associated With Community Structure and Metabolic Potential of Planktonic Microbiota in Plateau Lakes

Hydrological fluctuations modulate phototrophic responses to nutrient fertilization in a large and shallow lake of Southwest China

The vanishing and the establishment of a new ecosystem on an oceanic island – Anthropogenic impacts with no return ticket

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