Does urbanization shape bacterial community composition in urban park soils? A case study in 16 representative Chinese cities based on the pyrosequencing method

Xu, Huijuan; Li, Shun; Su, Jian‐Qiang; Nie, Shuang; Gibson, Valerie; Li, Hu; Zhu, Yan

doi:10.1111/1574-6941.12215

Cited by 86 publications

(84 citation statements)

References 38 publications

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“…These results were similar to the findings reported by Xu et al . in soil from urban park soil in China44. They were also consistent with a study performed in New York City’s Central Park4550.…”

Section: Discussionsupporting

confidence: 89%

“…Xu et al . suggested that urbanization factors have no significant correlation with α-diversity in urban parks44. However, in the current work, results showed that soil bacterial diversity had significant differences across urban ring road areas.…”

Section: Discussioncontrasting

confidence: 73%

“…also found the diversity of bacteria in the medians to be similar to that of Central Park50. It should be noted that the samples in other studies444550 were collected from urban parks subject to no direct disturbances from human activities, suggesting that the bacterial communities of urban park soil microbial communities might not respond to direct disturbances by urban development. More studies should be performed to confirm this.…”

Section: Discussionmentioning

confidence: 62%

“…Recently, Xu et al . suggested that urbanization affects the composition of bacterial community in urban park soils44. Ramirez et al .…”

mentioning

confidence: 99%

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Urban-development-induced Changes in the Diversity and Composition of the Soil Bacterial Community in Beijing

Yan

Xiao

et al. 2016

Sci Rep

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Numerous studies have implicated urbanization as a major cause of loss of biodiversity. Most of them have focused on plants and animals, even though soil microorganisms make up a large proportion of that biodiversity. However, it is unclear how the soil bacterial community is affected by urban development. Here, paired-end Illumina sequencing of the 16 S rRNA gene at V4 region was performed to study the soil microbial community across Beijing’s built-up area. Proteobacteria, Acidobacteria, Bacteroidetes, Actinobacteria, Gemmatimonadetes, Verrucomicrobia, Planctomycetes, and Chloroflexi were the dominant phyla in all samples, but the relative abundance of these phyla differed significantly across these concentric zones. The diversity and composition of the soil bacterial community were found to be closely correlated with soil pH. Variance partitioning analysis suggested that urban ring roads contributed 5.95% of the bacterial community variation, and soil environmental factors explained 17.65% of the variation. The results of the current work indicate that urban development can alter the composition and diversity of the soil microbial community, and showed pH to be a key factor in the shaping of the composition of the soil bacterial community. Urban development did have a strong impact on the bacterial community of urban soil in Beijing.

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Section: Discussionsupporting

confidence: 89%

Section: Discussioncontrasting

confidence: 73%

Section: Discussionmentioning

confidence: 62%

“…Recently, Xu et al . suggested that urbanization affects the composition of bacterial community in urban park soils44. Ramirez et al .…”

mentioning

confidence: 99%

See 2 more Smart Citations

Urban-development-induced Changes in the Diversity and Composition of the Soil Bacterial Community in Beijing

Yan

Xiao

et al. 2016

Sci Rep

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“…Besides the impact of RWI on soil resistome and the bacterial community, we also examined whether soil ARGs was shaped by soil properties, which were generally considered as important factors affecting soil microbes (Cytryn, 2013;Xu et al, 2014). In this study, soil pH (ranging from 3.76 to 7.57, Table S2) exhibited a significant and positive correlation with the enrichment of total ARGs, which was in consistence with the results of Tang et al (2015), which found the significantly positive correlations between soil pH (ranging from 5.63 to 7.55) and the relative abundances of several genes conferring resistance to tetracyclines and sulfonamides.…”

Section: Impacts Of Rwi On the Bacterial Communities In Urban Park Soilsmentioning

confidence: 99%

Impacts of reclaimed water irrigation on soil antibiotic resistome in urban parks of Victoria, Australia

Han

Shi

et al. 2016

Environmental Pollution

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a b s t r a c tThe effluents from wastewater treatment plants have been recognized as a significant environmental reservoir of antibiotics and antibiotic resistance genes (ARGs). Reclaimed water irrigation (RWI) is increasingly used as a practical solution for combating water scarcity in arid and semiarid regions, however, impacts of RWI on the patterns of ARGs and the soil bacterial community remain unclear. Here, we used high-throughput quantitative PCR and terminal restriction fragment length polymorphism techniques to compare the diversity, abundance and composition of a broad-spectrum of ARGs and total bacteria in 12 urban parks with and without RWI in Victoria, Australia. A total of 40 unique ARGs were detected across all park soils, with genes conferring resistance to b-lactam being the most prevalent ARG type. The total numbers and the fold changes of the detected ARGs were significantly increased by RWI, and marked shifts in ARG patterns were also observed in urban parks with RWI compared to those without RWI. The changes in ARG patterns were paralleled by a significant effect of RWI on the bacterial community structure and a co-occurrence pattern of the detected ARG types. There were significant and positive correlations between the fold changes of the integrase intI1 gene and two b-lactam resistance genes (KPC and IMP-2 groups), but no significant impacts of RWI on the abundances of intI1 and the transposase tnpA gene were found, indicating that RWI did not improve the potential for horizontal gene transfer of soil ARGs. Taken together, our findings suggested that irrigation of urban parks with reclaimed water could influence the abundance, diversity, and compositions of a wide variety of soil ARGs of clinical relevance. One-sentence summary: Irrigation of urban parks with treated wastewater significantly increased the abundance and diversity of various antibiotic resistance genes, but did not significantly enhance their potential for horizontal gene transfer.

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Urban meadows as an alternative to short mown grassland: effects of composition and height on biodiversity

Norton

Bending

Clark

et al. 2019

Ecological Applications

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There are increasing calls to provide greenspace in urban areas, yet the ecological quality, as well as quantity, of greenspace is important. Short mown grassland designed for recreational use is the dominant form of urban greenspace in temperate regions but requires considerable maintenance and typically provides limited habitat value for most taxa. Alternatives are increasingly proposed, but the biodiversity potential of these is not well understood. In a replicated experiment across six public urban greenspaces, we used nine different perennial meadow plantings to quantify the relative roles of floristic diversity and height of sown meadows on the richness and composition of three taxonomic groups: plants, invertebrates, and soil microbes. We found that all meadow treatments were colonized by plant species not sown in the plots, suggesting that establishing sown meadows does not preclude further locally determined grassland development if management is appropriate. Colonizing species were rarer in taller and more diverse plots, indicating competition may limit invasion rates. Urban meadow treatments contained invertebrate and microbial communities that differed from mown grassland. Invertebrate taxa responded to changes in both height and richness of meadow vegetation, but most orders were more abundant where vegetation height was longer than mown grassland. Order richness also increased in longer vegetation and Coleoptera family richness increased with plant diversity in summer. Microbial community composition seems sensitive to plant species composition at the soil surface (0–10 cm), but in deeper soils (11–20 cm) community variation was most responsive to plant height, with bacteria and fungi responding differently. In addition to improving local residents’ site satisfaction, native perennial meadow plantings can produce biologically diverse grasslands that support richer and more abundant invertebrate communities, and restructured plant, invertebrate, and soil microbial communities compared with short mown grassland. Our results suggest that diversification of urban greenspace by planting urban meadows in place of some mown amenity grassland is likely to generate substantial biodiversity benefits, with a mosaic of meadow types likely to maximize such benefits.

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Does urbanization shape bacterial community composition in urban park soils? A case study in 16 representative Chinese cities based on the pyrosequencing method

Cited by 86 publications

References 38 publications

Urban-development-induced Changes in the Diversity and Composition of the Soil Bacterial Community in Beijing

Urban-development-induced Changes in the Diversity and Composition of the Soil Bacterial Community in Beijing

Impacts of reclaimed water irrigation on soil antibiotic resistome in urban parks of Victoria, Australia

Urban meadows as an alternative to short mown grassland: effects of composition and height on biodiversity

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