The effects of vehicular emissions on the activity and diversity of the roadside soil microbial community

Silva, Shamali De; Ball, Andrew S.; Shahsavari, Esmaeil; Indrapala, Demidu V.; Reichman, Suzie M.

doi:10.1016/j.envpol.2021.116744

Cited by 15 publications

(6 citation statements)

References 45 publications

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“…Because the phylloplane shares a portion of the proper microbiome with soils [57,58], it could be expected to show a certain similarity in terms of microbial sensitivity to the pollution load. The specific basal respiration or respiration per unit of biomass of roadside soils was shown to be higher in comparison to control sites in Australia but was not related to the accumulation of any particular metal [59]. In our study, basal respiration was found to be significantly higher for the roadside phylloplane.…”

Section: Phylloplane: Sensitive Indicators To Distance From the Roadcontrasting

confidence: 65%

Phylloplane Biodiversity and Activity in the City at Different Distances from the Traffic Pollution Source

Ivashchenko

Korneykova

Сазонова

et al. 2022

Plants

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The phylloplane is an integrated part of green infrastructure which interacts with plant health. Taxonomic characterization of the phylloplane with the aim to link it to ecosystem functioning under anthropogenic pressure is not sufficient because only active microorganisms drive biochemical processes. Activity of the phylloplane remains largely overlooked. We aimed to study the interactions among the biological characteristics of the phylloplane: taxonomic diversity, functional diversity and activity, and the pollution grade. Leaves of Betula pendula were sampled in Moscow at increasing distances from the road. For determination of phylloplane activity and functional diversity, a MicroResp tool was utilized. Taxonomic diversity of the phylloplane was assessed with a combination of microorganism cultivation and molecular techniques. Increase of anthropogenic load resulted in higher microbial respiration and lower DNA amount, which could be viewed as relative inefficiency of phylloplane functioning in comparison to less contaminated areas. Taxonomic diversity declined with road vicinity, similar to the functional diversity pattern. The content of Zn in leaf dust better explained the variation in phylloplane activity and the amount of DNA. Functional diversity was linked to variation in nutrient content. The fraction of pathogenic fungi of the phylloplane was not correlated with any of the studied elements, while it was significantly high at the roadsides. The bacterial classes Gammaproteobacteria and Cytophagia, as well as the Dothideomycetes class of fungi, are exposed to the maximal effect of distance from the highway. This study demonstrated the sensitivity of the phylloplane to road vicinity, which combines the effects of contaminants (mainly Zn according to this study) and potential stressful air microclimatic conditions (e.g., low relative air humidity, high temperature, and UV level). Microbial activity and taxonomic diversity of the phylloplane could be considered as an additional tool for bioindication.

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Section: Phylloplane: Sensitive Indicators To Distance From the Roadcontrasting

confidence: 65%

Phylloplane Biodiversity and Activity in the City at Different Distances from the Traffic Pollution Source

Ivashchenko

Korneykova

Сазонова

et al. 2022

Plants

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“…This leads to the question of which of the upstream bores were more representative of the upstream/regional NO 3 − contamination. DSE63273 was immediately downstream from the Market Gardens, so it was likely the best representation; however, it was also immediately adjacent to a road and a poultry manure stockpile and was likely influenced by these factors [15,59]. Alternately, RB23 was surrounded by a small grove of trees, which also likely impacts the local physiochemistry and ecology.…”

Section: Constrained Correspondence Analysismentioning

confidence: 99%

The Variation in Groundwater Microbial Communities in an Unconfined Aquifer Contaminated by Multiple Nitrogen Contamination Sources

Morrissy

Currell

Reichman

et al. 2022

Water

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Aquifers provide integral freshwater resources and host ecosystems of largely uncharacterized, truncated endemic microorganisms. In recent history, many aquifers have become increasingly contaminated from various anthropogenic sources. To better understand the impacts of nitrogen contamination on native groundwater ecosystems, 16S rRNA sequencing of the groundwater microbial communities was carried out. Samples were taken from an aquifer known to be contaminated with nitrogen from multiple sources, including fertilizers and wastewater treatment plant effluents. In total, two primary contaminants were identified: NH4+ (<0.1–3.7–26 mg L−1 NH4+ min-median-max), and NO3− (<0.01–18–150 mg L−1 NO3− min-median-max). These contaminants were found to be associated with a decrease/increase in microbial species richness within affected groundwater for NH4+/NO3−, respectively. Important phyla were identified, including Proteobacteria, which had the highest abundance within samples unaffected by NH4+ (36–81% NH4+ unaffected, 4–33% NH4+ affected), and Planctomycetes (0.05–10% NH4+ unaffected, 43–72% NH4+ affected), which had the highest abundance within the NH4+ affected samples, likely due to its ability to perform anaerobic ammonia oxidation (ANAMMOX). Planctomycetes were identified as a potential indicator for the presence of NH4+ contamination. The analysis and characterization of sequencing data alongside physicochemical data showed potential to increase the depth of our understanding of contaminant behavior and fate within a contaminated aquifer using this type of data and analysis.

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“…Beta-diversity indexes showed the differences of the microorganism community among groups. Sample cluster analysis was performed by the unweighted pair-group method with arithmetic means (UPGMA) method; refer to previous reports . Besides, PCA was performed based on OTU data.…”

Section: Resultsmentioning

confidence: 99%

“…Sample cluster analysis was performed by the unweighted pair-group method with arithmetic means (UPGMA) method; refer to previous reports. 40 Besides, PCA was performed based on OTU data. The composition of microbials among CK, HOTC, and IMI differed obviously (Figure 3D,E), indicating that both IMI and OTC could influence the beta-diversity of the rhizosphere microbiome.…”

Section: Effect Of Coexposure Of Otc On the Residue Risk Of Imi In Ra...mentioning

confidence: 99%

Oxytetracycline Increases the Residual Risk of Imidacloprid in Radish (Raphanus sativus) and Disturbs the Plant-Rhizosphere Microbiome Holobiont Homeostasis

Jiang,

Cheng,

Zhai

et al. 2024

J. Agric. Food Chem.

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Antibiotics can be accidentally introduced into farmland by wastewater irrigation, and the environmental effects are still unclear. In this study, the effects of oxytetracycline on the residue of imidacloprid in soil and radishes were investigated. Besides, the rhizosphere microbiome and radish metabolome were analyzed. It showed that the persistence of imidacloprid in soil was unchanged, but the content of olefin-imidacloprid was increased by oxytetracycline. The residue of imidacloprid in radishes was increased by nearly 1.5 times, and the hazard index of imidacloprid was significantly raised by 1.5−4 times. Oxytetracycline remodeled the rhizosphere microbiome, including Actinobe, Elusimic, and Firmicutes, and influenced the metabolome of radishes. Especially, some amino acid metabolic pathways in radish were downregulated, which might be involved in imidacloprid degradation. It can be assumed that oxytetracycline increased the imidacloprid residue in radish through disturbing the plantrhizosphere microbiome holobiont and, thus, increased the pesticide dietary risk.

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The effects of vehicular emissions on the activity and diversity of the roadside soil microbial community

Cited by 15 publications

References 45 publications

Phylloplane Biodiversity and Activity in the City at Different Distances from the Traffic Pollution Source

Phylloplane Biodiversity and Activity in the City at Different Distances from the Traffic Pollution Source

The Variation in Groundwater Microbial Communities in an Unconfined Aquifer Contaminated by Multiple Nitrogen Contamination Sources

Oxytetracycline Increases the Residual Risk of Imidacloprid in Radish (Raphanus sativus) and Disturbs the Plant-Rhizosphere Microbiome Holobiont Homeostasis

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