Spatial distribution of bacterial communities in high-altitude freshwater wetland sediment

Liu, Yong; Zhang, Jingxu; Zhao, Lei; Zhang, Xiaoling; Xie, Shuguang

doi:10.1007/s10201-014-0429-0

Cited by 44 publications

(24 citation statements)

References 44 publications

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“…We were most interested in the microbial community that exists within beach sands and how it might correspond to FIB reservoirs. Recent studies have shown that bacterial community structure often varies along nutrient and land use gradients (35)(36)(37)(38)(39). Our previous work on the Deepwater Horizon oil spill in the Gulf of Mexico demonstrated that environmental perturbation, in that case petroleum contamination, can alter the structure and function of microbial communities in beach sand, which we characterized using next-generation sequencing technologies (15).…”

Section: Discussionmentioning

confidence: 97%

Influence of Land Use, Nutrients, and Geography on Microbial Communities and Fecal Indicator Abundance at Lake Michigan Beaches

Cloutier

Alm

McLellan

2015

Appl Environ Microbiol

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bMicrobial communities within beach sand play a key role in nutrient cycling and are important to the nearshore ecosystem function. Escherichia coli and enterococci, two common indicators of fecal pollution, have been shown to persist in the beach sand, but little is known about how microbial community assemblages are related to these fecal indicator bacteria (FIB) reservoirs. We examined eight beaches across a geographic gradient and range of land use types and characterized the indigenous community structure in the water and the backshore, berm, and submerged sands. FIB were found at similar levels in sand at beaches adjacent to urban, forested, and agricultural land and in both the berm and backshore. However, there were striking differences in the berm and backshore microbial communities, even within the same beach, reflecting the very different environmental conditions in these beach zones in which FIB can survive. In contrast, the microbial communities in a particular beach zone were similar among beaches, including at beaches on opposite shores of Lake Michigan. The differences in the microbial communities that did exist within a beach zone correlated to nutrient levels, which varied among geographic locations. Total organic carbon and total phosphorus were higher in Wisconsin beach sand than in beach sand from Michigan. Within predominate genera, finescale sequence differences could be found that distinguished the populations from the two states, suggesting a biogeographic effect. This work demonstrates that microbial communities are reflective of environmental conditions at freshwater beaches and are able to provide useful information regarding long-term anthropogenic stress. Since the creation of the Federal Beach Environmental Assessment and Coastal Health (BEACH) Act of 2000, coastal communities have been challenged with implementing programs for the monitoring of recreational waters. Water quality monitoring relies on fecal indicator bacteria (FIB), such as Escherichia coli and enterococci, and the assumption that both are fecal in origin. In recent years, many Great Lakes coastal recreational waters were monitored for the first time and subsequently were found to have unacceptable levels of E. coli, indicating the presence of contamination from sources such as sewage, stormwater, or agricultural runoff. However, recent studies have detected high concentrations of FIB in recreational beach sands compared to the concentrations in the nearby monitored waters (1-4). Importantly, several studies have documented that sand reservoirs of FIB play a large role in beach water samples exceeding regulatory limits (1, 3, 5-7).Persistent FIB in the beach environment is of great concern. The presence of FIB in either recreational waters or sand is assumed to indicate a recent pollution event. However, the persistence and possible proliferation of FIB in the beach environment can confound beach-monitoring efforts and poses additional challenges for beach managers. In addition, there is mounting evidence that E. co...

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Section: Discussionmentioning

confidence: 97%

Influence of Land Use, Nutrients, and Geography on Microbial Communities and Fecal Indicator Abundance at Lake Michigan Beaches

Cloutier

Alm

McLellan

2015

Appl Environ Microbiol

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“…The results of RDA also confirmed the important role of nitrate nitrogen in shaping sediment bacterial assemblage. Microorganisms from phylum Proteobacteria might be involved in a variety of biogeochemical processes in aquatic ecosystems (Cheng et al 2014;Liu et al 2014a;Zhang et al 2014). Numerous previous studies have shown the predominance of Proteobacteria in sediments of various lakes, with a large shift in the composition of major classes and their proportions (Dai et al 2013;Haller et al 2011;Liu et al 2010;Song et al 2012;Tang et al 2010;Ye et al 2009).…”

Section: Bacterial and Archaeal Diversities In Lake Sedimentmentioning

confidence: 98%

“…Bacteria in sediment ecosystems are known to play important roles in the transformation of organic matter and in biogeochemical cycling of primary elements such as nitrogen, sulfur, phosphorus, and iron (Cheng et al 2014;Liu et al 2009Liu et al , 2014aMartins et al 2011). Knowledge of bacterial community that inhabits aquatic ecosystems can aid in the sustainable management of water resources.…”

Section: Introductionmentioning

confidence: 99%

Distribution of sediment bacterial and archaeal communities in plateau freshwater lakes

Zhang

Yang

Zhao³

et al. 2014

Appl Microbiol Biotechnol

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243

105

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Both Bacteria and Archaea might be involved in various biogeochemical processes in lacustrine sediment ecosystems. However, the factors governing the intra-lake distribution of sediment bacterial and archaeal communities in various freshwater lakes remain unclear. The present study investigated the sediment bacterial and archaeal communities in 13 freshwater lakes on the Yunnan Plateau. Quantitative PCR assay showed a large variation in bacterial and archaeal abundances. Illumina MiSeq sequencing illustrated high bacterial and archaeal diversities. Bacterial abundance was regulated by sediment total organic carbon and total nitrogen, and water depth, while nitrate nitrogen was an important determinant of bacterial diversity. Proteobacteria, Acidobacteria, Actinobacteria, Bacteroidetes, Chlorobi, Chloroflexi, Cyanobacteria, Firmicutes, Gemmatimonadetes, Nitrospirae, Planctomycetes, and Verrucomicrobia were the major components of sediment bacterial communities. Proteobacteria was the largest phylum, but its major classes and their proportions varied greatly among different lakes, affected by sediment nitrate nitrogen. In addition, both Euryarchaeota and Crenarchaeota were important members in sediment archaeal communities, while unclassified Archaea usually showed the dominance.

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“…Microorganisms from Proteobacteria might be involved in the biodegradation or biotransformation of numerous organic compounds in natural or manmade ecosystems Liao et al 2013aLiao et al , 2015Liu et al 2014a;Zhang et al 2014). The dominance of Proteobacteria has been found in natural wetlands (Ansola et al 2014;Liu et al 2014b), wastewater CW systems (Ansola et al 2014;Bouali et al 2014;Huang et al 2013), and biofilters treating surface water (Feng et al 2013a;Liao et al 2013b).…”

Section: Bacterial Community Structurementioning

confidence: 99%

Influence of substrate type on microbial community structure in vertical-flow constructed wetland treating polluted river water

Guan

Yin²,

et al. 2015

Environ Sci Pollut Res

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Microorganisms attached on the surfaces of substrate materials in constructed wetland play crucial roles in the removal of organic and inorganic pollutants. However, the impact of substrate material on wetland microbial community structure remains unclear. Moreover, little is known about microbial community in constructed wetland purifying polluted surface water. In this study, Illumina high-throughput sequencing was applied to profile the spatial variation of microbial communities in three pilot-scale surface water constructed wetlands with different substrate materials (sand, zeolite, and gravel). Bacterial community diversity and structure showed remarkable spatial variation in both sand and zeolite wetland systems, but changed slightly in gravel wetland system. Bacterial community was found to be significantly influenced by wetland substrate type. A number of bacterial groups were detected in wetland systems, including Proteobacteria, Chloroflexi, Bacteroidetes, Acidobacteria, Cyanobacteria, Nitrospirae, Planctomycetes, Actinobacteria, Firmicutes, Chlorobi, Spirochaetae, Gemmatimonadetes, Deferribacteres, OP8, WS3, TA06, and OP3, while Proteobacteria (accounting for 29.1-62.3 %), mainly composed of Alpha-, Beta-, Gamma-, and Deltaproteobacteria, showed the dominance and might contribute to the effective reduction of organic pollutants. In addition, Nitrospira-like microorganisms were abundant in surface water constructed wetlands.

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Spatial distribution of bacterial communities in high-altitude freshwater wetland sediment

Cited by 44 publications

References 44 publications

Influence of Land Use, Nutrients, and Geography on Microbial Communities and Fecal Indicator Abundance at Lake Michigan Beaches

Influence of Land Use, Nutrients, and Geography on Microbial Communities and Fecal Indicator Abundance at Lake Michigan Beaches

Distribution of sediment bacterial and archaeal communities in plateau freshwater lakes

Influence of substrate type on microbial community structure in vertical-flow constructed wetland treating polluted river water

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