Long-term application of organic fertilizer prompting the dispersal of antibiotic resistance genes and their health risks in the soil plastisphere

Lin, Da; Xu, Jia-Yang; Wang, Lu; Du, Shuai; Zhu, Dong

doi:10.1016/j.envint.2024.108431

Cited by 15 publications

(5 citation statements)

References 54 publications

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“…The earthworm gut had a lower frequency of co-occurrence patterns between ARGs and MGEs in forest systems compared to arable systems, suggesting a lower risk of horizontal transfer of ARGs. Arable systems typically undergo more intensive agricultural practices such as the use of fertilizers, pesticides, and frequent soil disturbance, , which can create environments conducive to the co-occurrence of ARGs and MGEs. , In contrast, forest systems have typically more stable environments with natural forest systems having lower anthropogenic influence and less disturbance, resulting in fewer opportunities for gene co-occurrence. For example, natural reforestation decreased the diversity of ARGs in soils …”

Section: Discussionmentioning

confidence: 99%

Viral Communities Suppress the Earthworm Gut Antibiotic Resistome by Lysing Bacteria on a National Scale

Du,

Bi,

Lin

et al. 2024

Environ. Sci. Technol.

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Earthworms are critical in regulating soil processes and act as filters for antibiotic resistance genes (ARGs). Yet, the geographic patterns and main drivers of earthworm gut ARGs remain largely unknown. We collected 52 earthworm and soil samples from arable and forest ecosystems along a 3000 km transect across China, analyzing the diversity and abundance of ARGs using shotgun metagenomics. Earthworm guts harbored a lower diversity and abundance of ARGs compared to soil, resulting in a stronger distance-decay rate of ARGs in the gut. Greater deterministic assembly processes of ARGs were found in the gut than in soil. The earthworm gut had a lower frequency of cooccurrence patterns between ARGs and mobile genetic elements (MGEs) in forest than in arable systems. Viral diversity was higher in the gut compared to soil and was negatively correlated with bacterial diversity. Bacteria such as Streptomyces and Pseudomonas were potential hosts of both viruses and ARGs. Viruses had negative effects on the diversity and abundance of ARGs, likely due to the lysis on ARG-bearing bacteria. These findings provide new insights into the variations of ARGs in the earthworm gut and highlight the vital role of viruses in the regulation of ARGs in the soil ecosystem.

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Section: Discussionmentioning

confidence: 99%

Viral Communities Suppress the Earthworm Gut Antibiotic Resistome by Lysing Bacteria on a National Scale

Du,

Bi,

Lin

et al. 2024

Environ. Sci. Technol.

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“…4 Moreover, the excessive use of nitrogen fertilizers has led to aquatic eutrophication and contamination, 5 degradation of the ozone layer and air quality, 6,7 and increased greenhouse gas emissions, 8,9 soil acidification, 10,11 and human health risks. 12,13 Thus, replacing nitrogen fertilizer with nitrogen-fixing bacteria in cereal crops is critical for sustainable agriculture.…”

Section: Introductionmentioning

confidence: 99%

“…Notably, approximately 25% of nitrogen fertilizer is lost or released into the atmosphere and aquatic environments by leaching, volatilization, and denitrification . Moreover, the excessive use of nitrogen fertilizers has led to aquatic eutrophication and contamination, degradation of the ozone layer and air quality, , and increased greenhouse gas emissions, , soil acidification, , and human health risks. , Thus, replacing nitrogen fertilizer with nitrogen-fixing bacteria in cereal crops is critical for sustainable agriculture.…”

Section: Introductionmentioning

confidence: 99%

Deciphering Microbial Community and Nitrogen Fixation in the Legume Rhizosphere

Yang,

Xu,

Zhang

et al. 2024

J. Agric. Food Chem.

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Nitrogen is the most limiting factor in crop production. Legumes establish a symbiotic relationship with rhizobia and enhance nitrogen fixation. We analyzed 1,624 rhizosphere 16S rRNA gene samples and 113 rhizosphere metagenomic samples from three typical legumes and three non-legumes. The rhizosphere microbial community of the legumes had low diversity and was enriched with nitrogen-cycling bacteria (Sphingomonadaceae, Xanthobacteraceae, Rhizobiaceae, and Bacillaceae). Furthermore, the rhizosphere microbiota of legumes exhibited a high abundance of nitrogen-fixing genes, reflecting a stronger nitrogen-fixing potential, and Streptomycetaceae and Nocardioidaceae were the predominant nitrogen-fixing bacteria. We also identified helper bacteria and confirmed through metadata analysis and a pot experiment that the synthesis of riboflavin by helper bacteria is the key factor in promoting nitrogen fixation. Our study emphasizes that the construction of synthetic communities of nitrogen-fixing bacteria and helper bacteria is crucial for the development of efficient nitrogen-fixing microbial fertilizers.

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“…Organisms including crustaceans and mollusks, known to feed on aquatic flora, may get exposed to these bioactive compounds . Similarly, reuse of WWTP effluents and dried sludge as manure in agricultural and horticultural practices may also lead to the contamination of terrestrial sediments. − Despite the reports on the quantification of ECs in wastewater and surface waters, knowledge on their uptake mechanisms and associated risks on the exposed populations is still unclear and needs greater attention. The transport of ECs in sediments, however, depends on the nature of the chemical interactions between the compound and soil components, varying organic content effects, the sorption, and mobility of ECs in the sediment.…”

Section: Introductionmentioning

confidence: 99%

Widespread Surveillance of Emerging Contaminants in the Yamuna River Basin: Evaluation of Surface Water, Sediments, Groundwater, and Aquatic Plants

Biswas,

Vellanki,

Ravichandran

et al. 2024

ACS EST Water

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Anthropogenic activities release hundreds of emerging contaminants (ECs) into the environment. Treated or partially treated wastewater carries ECs, metabolites, and transformation products (TPs) to nearby surface waters, contaminating the majority of the river ecosystem. The present study discussed the occurrence of 32 ECs in different environmental matrices of the Yamuna River Basin including wastewater, surface water, sediments, groundwater, and aquatic biota. The concentration of estrone was detected at highest concentrations ranging from not detected to 28,532.2 ng/L in the aqueous matrices, while in the solid matrices, the concentration ranged from not detected to 504,274.6 ng/kg. Apart from estrone, 17β estradiol, bisphenol A, and caffeine were also detected at elevated levels in all the sample matrices with concentrations equal to 2552.2, 4500.5, and 5562.8 ng/L, respectively, in aqueous samples and 153,2.1 454,451.7, and 213,916.6 ng/kg, respectively, in solid samples. Reports on the levels of ECs in aquatic biota, especially in plants, are sparse and require attention. Bioaccumulation factors between sediment and biota highlighted the higher affinity of the ECs toward biota. The study identified 21 metabolites and TPs in surface water and sediment samples.

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Long-term application of organic fertilizer prompting the dispersal of antibiotic resistance genes and their health risks in the soil plastisphere

Cited by 15 publications

References 54 publications

Viral Communities Suppress the Earthworm Gut Antibiotic Resistome by Lysing Bacteria on a National Scale

Viral Communities Suppress the Earthworm Gut Antibiotic Resistome by Lysing Bacteria on a National Scale

Deciphering Microbial Community and Nitrogen Fixation in the Legume Rhizosphere

Widespread Surveillance of Emerging Contaminants in the Yamuna River Basin: Evaluation of Surface Water, Sediments, Groundwater, and Aquatic Plants

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