Bacterial community structure and function in soils from tidal freshwater wetlands in a Chinese delta: Potential impacts of salinity and nutrient

Li, Huai; Chi, Zifang; Li, Jiuling; Wu, Haitao; Yan, Baixing

doi:10.1016/j.scitotenv.2019.134029

Cited by 86 publications

(35 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several prior reports have demonstrated the important link between soil chemistry and microbial community composition in a variety of ecosystems (Kerfahi, Tripathi, Dong, Go, & Adams, 2016;Nanganoa et al, 2019;Tian et al, 2017). SOC, pH, and nutrient contents have been reported to be the key determinants of bacterial community composition and diversity in vineyards (Li, Chi, Li, Wu, & Yan, 2019). Our correlation analyses revealed SOC, ammonium, nitrate, and bacterial diversity indices to be positively correlated (Table S).…”

Section: Discussionsupporting

confidence: 64%

Evidence of sustainable land use: the reclamation of desertified lands to plant vineyards

Zhang

Xue

Gao

et al. 2021

Preprint

View full text Add to dashboard Cite

Desertified land reclamation for the purposes of winegrape cultivation can profoundly alter the properties of the underlying soil and the microbial communities therein. Herein, we assessed the effects of such reclamation of non-productive desert land on the soil microbial communities associated with the resultant vineyards, and to identify key soil properties related to these changes. Soil was collected from natural desert land (DL) and from different reclaimed vineyard types: Cabernet Sauvignon (CS), Merlot (M), Chardonnay (C), and Italian Riesling (IR). High-throughput sequencing was used to assess microbial community composition and diversity in these samples. Significant differences in soil organic carbon (SOC), total nitrogen, available nitrogen, available phosphorus, and pH were detected when comparing soil from DL and reclaimed lands. CS, M, C, and IR soils exhibited higher relative Actinobacteria, Proteobacteria, and Ascomycota abundance, while DL soil exhibited higher relative Acidobacteria and Mortierellomycota abundance. In total, 165 and 55 bacterial and fungal amplicon sequence variants or operational taxonomic units (ASVs/OTUs) were shared across land use types. Following reclamation, soil bacteria ASVs/OTUs in CS, M, C, and IR soils rose to 2846, 3191, 7630, and 6373, respectively. Biomarkers of these different land use types were successfully identified via an LDA Effect Size (LEfSe) approach, while key soil properties including pH, SOC, and available nitrogen were found to be associated with these changes in microbial community structural composition following reclamation. As such, our data indicate that viticulture in desertified regions can enhance soil properties and microbial diversity, thereby supporting sustainable land use.

show abstract

Section: Discussionsupporting

confidence: 64%

Evidence of sustainable land use: the reclamation of desertified lands to plant vineyards

Zhang

Xue

Gao

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…In combination with the key enzyme coding (Li et al, 2019;Yang et al, 2020) presented in this study, the main N metabolism processes were shown in Fig. 5.…”

Section: Mechanism Of N Removalmentioning

confidence: 84%

Microbial composition and nitrogen removal pathways in a novel sequencing batch reactor integrated with semi-fixed biofilm carrier: Evidence from a pilot study for low- and high-strength sewage treatment

Cui¹

2021

Preprint

View full text Add to dashboard Cite

The sequencing batch reactor (SBR) activated sludge process is a well-established technology for sewage treatment. One of the drawbacks of SBRs, however, is the failure to conform to the standard for total nitrogen (TN) discharge. By means of introducing four improvements, including semi-fixed biofilm carrier, sludge elevation mixing and change for the mode of influent and effluent, compliant standard for TN discharge was obtained in this novel SBR configuration during low- and high- -strength sewage load. To illustrate the microbial compositions and functions of the attached biofilm on semi-fixed carrier and the suspended aggregates, as well as the nitrogen removal pathway, high throughput 16S rRNA gene amplicon sequencing, PICRUSt2 algorithm and KEGG database were applied. The results revealed that: i) the microbial communities from suspended aggregates and biofilm samples were significantly different from each other; ii) during low-strength sewage loads, TN removal was mainly by nitrification-denitrification. The suspended aggregates was responsible for denitrification, while the biofilm was focused on ammonium oxidation; iii) during high-strength sewage loads, function of nitrate reductase from suspended aggregates was faded, and anammox and N assimilation by biofilm became dominant. Meanwhile, TN removal referring to the formation of L-glutamine via assimilation was the main pathway.

show abstract

“…The predicted functional profiling of the bacterial communities using 16S rRNA marker gene sequences was also obtained. PICRUSt has been applied in many authoritative works to estimate the metabolic pathways of bacterial communities retrieved in different ecosystems, including mineral-based substrates [62][63][64][65][66][67][68]. By predicting metabolic pathways, a consensus of the microbial metabolic characteristics present in an environment and the possible interactions of the microbial communities with the abiotic environment can be obtained.…”

Section: Discussionmentioning

confidence: 99%

Aesthetic Alteration of Marble Surfaces Caused by Biofilm Formation: Effects of Chemical Cleaning

et al. 2020

View full text Add to dashboard Cite

Despite the massive presence of biofilms causing aesthetic alteration to the façade of the Monza Cathedral, our team in a previous work proved that the biocolonization was not a primary damaging factor if compared to chemical-physical deterioration due to the impact of air pollution. Nonetheless, the conservators tried to remove the sessile dwelling microorganisms to reduce discolouration. In this research, two nearby sculpted leaves made of Candoglia marble were selected to study the effects of a chemical treatment combining the biocides benzalkonium chloride, hydrogen peroxide and Algophase® and mechanical cleaning procedures. One leaf was cleaned with the biocides and mechanically, and the other was left untreated as control. The impact of the treatment was investigated after 1 month from the cleaning by digital microscopy, environmental scanning electron microscopy, confocal microscopy and molecular methods to determine the composition and the functional profiles of the bacterial communities. Despite the acceptable aesthetic results obtained, the overall cleaning treatment was only partially effective in removing the biofilm from the colonized surfaces and, therefore, not adequately suitable for the specific substrate. Furthermore, the cleaning process selected microorganisms potentially more resistant to biocides so that the efficacy of future re-treatment by antimicrobial agents could be negatively affected.

show abstract

Bacterial community structure and function in soils from tidal freshwater wetlands in a Chinese delta: Potential impacts of salinity and nutrient

Cited by 86 publications

References 44 publications

Evidence of sustainable land use: the reclamation of desertified lands to plant vineyards

Evidence of sustainable land use: the reclamation of desertified lands to plant vineyards

Microbial composition and nitrogen removal pathways in a novel sequencing batch reactor integrated with semi-fixed biofilm carrier: Evidence from a pilot study for low- and high-strength sewage treatment

Aesthetic Alteration of Marble Surfaces Caused by Biofilm Formation: Effects of Chemical Cleaning

Contact Info

Product

Resources

About