Contaminant Behavior and Remediation Strategies in Agricultural Soils

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Agricultural Soils".

Deadline for manuscript submissions: 20 August 2026 | Viewed by 265

Special Issue Editors


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Guest Editor
Department of Civil and Environmental Engineering, Rowan University, Glassboro, NJ 08028, USA
Interests: environmental science and engineering; contaminant fate and transport; soil remediation; water and wastewater treatment; environmental biotechnology; resource recovery
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Special Issue Information

Dear Colleagues,

Agricultural soils are increasingly recognized as sinks for a wide range of contaminants originating from modern agricultural practices, waste reuse, urban influence, and industrial activities. Beyond conventional pollutants, new classes of chemical and biological stressors are raising concerns regarding soil health, crop productivity, food safety, and ecosystem sustainability. These contaminants often exhibit complex behavior, including persistence, mobility, bioavailability, and interactions with soil components and biota. At the same time, innovative remediation and risk-mitigation strategies are being developed to reduce their environmental and human health impacts. This Special Issue aims to advance understanding of the sources, fate, effects, and control of contaminants in agroecosystems.

Areas of interest for publication include, but are not limited to, the following:

  • Impacts of emerging contaminants (e.g., PFAS, microplastics, pharmaceuticals) on soil health, including microbial communities, soil fauna, and nutrient cycling;
  • Soil–contaminant interactions controlling bioavailability, mobility, and long-term persistence;
  • Effects of contaminants on soil structure, carbon dynamics, and ecosystem resilience;
  • Development and evaluation of soil amendments (e.g., biochar, minerals, organic materials, industrial residuals) for contaminant immobilization and soil restoration;
  • Innovative in situ remediation and stabilization technologies for contaminated agricultural soils;
  • Monitoring approaches, indicators, and frameworks for assessing soil health recovery following remediation.

Dr. Zhiming Zhang
Prof. Dr. Rupali Datta
Guest Editors

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Keywords

  • agricultural soils
  • contaminant behavior
  • remediation strategies
  • emerging contaminants
  • soil health

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Published Papers (1 paper)

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Research

23 pages, 1992 KB  
Article
Glyphosate Interactions with Actinobacteria Under Phosphate Starvation: Physiological, Ultrastructural and Molecular Insights from Streptomyces sp. Z38
by Teresa Ana Lía Ocante, Fernando Gabriel Martinez, Federico Zannier, Angeles Prieto-Fernandez, Juliana María Saez and Analía Álvarez
Agriculture 2026, 16(10), 1112; https://doi.org/10.3390/agriculture16101112 - 19 May 2026
Abstract
Glyphosate [N-(phosphonomethyl)glycine] is the most widely used herbicide worldwide, and its environmental persistence has prompted increasing interest in microbial processes that may contribute to its dissipation. This study evaluated a collection of 15 soil-derived actinobacterial strains for plant growth-promoting traits, extracellular enzymatic activities, [...] Read more.
Glyphosate [N-(phosphonomethyl)glycine] is the most widely used herbicide worldwide, and its environmental persistence has prompted increasing interest in microbial processes that may contribute to its dissipation. This study evaluated a collection of 15 soil-derived actinobacterial strains for plant growth-promoting traits, extracellular enzymatic activities, glyphosate tolerance, and glyphosate removal under nutrient-sufficient and phosphate-starved conditions. Herbicide tolerance evaluated on agar plates was widespread across the collection, with all strains sustaining growth at 10 and 50 g L−1 of glyphosate. Under nutrient-sufficient conditions glyphosate removal remained limited, with maximum values of 16.15 ± 2.08% (Streptomyces sp. Con7.16) and 15.34 ± 2.89% (Streptomyces sp. Z38). In contrast, prior phosphate starvation markedly enhanced removal efficiency, reaching 42.21 ± 3.59% in Streptomyces sp. Z38 and 39.46 ± 1.94% in Streptomyces sp. Con7.16. Transmission electron microscopy coupled with X-ray microanalysis in the selected Streptomyces sp. Z38 revealed starvation-associated depletion of intracellular polyphosphate granules, followed by partial replenishment when glyphosate was supplied as the sole phosphorus source, consistent with indirect evidence of glyphosate-derived phosphorus acquisition. Genome mining of Streptomyces sp. Z38 identified candidate genes potentially consistent with a non-canonical, C-P lyase-independent phosphonate utilization route; however, these assignments are based exclusively on bioinformatic evidence and require experimental validation. Collectively, these findings indicate that phosphate limitation enhances glyphosate removal in the selected actinobacteria, and the physiological and genomic data are consistent with a starvation-triggered shift toward alternative phosphorus scavenging strategies. Because this strain is intended for future phytoremediation applications in glyphosate-contaminated agricultural soils, elucidating the underlying phosphorus dynamics is essential for anticipating its functional behavior and environmental relevance. Full article
(This article belongs to the Special Issue Contaminant Behavior and Remediation Strategies in Agricultural Soils)
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