Assessing the risks of silver nanoparticle-concentrated matrix application in agricultural soil: Implications for plant and soil enzymes

Kwak, Jin Il; Nam, Sun-Hwa; An, Youn‐Joo

doi:10.1016/j.cbpc.2023.109631

Cited by 2 publications

(3 citation statements)

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“…Correspondingly, the AM fungal diversity was also lower under AgNPs. The toxicity of AgNPs in AM fungi was consistent with that of those in bacteria [10,46] due to the excellent antimicrobial activity of AgNPs [47]. There were negative correlations between the AM fungal diversity indices and soil-soluble Ag content.…”

Section: Discussionsupporting

confidence: 55%

“…Silver nanoparticles (AgNPs) are one of three commonly used engineered nanoparticles in the world [8]. Previous studies have found that the biological effects of AgNPs were complex and depended on the AgNP dose, the treatment duration, and the soil type [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…For example, AgNPs at appropriate doses were found to prime biological defense pathways and thus stimulate the growth of plants and microbes [12,13]. Alternatively, when present at high doses, AgNPs can exert oxidative stresses on plants and microbes, resulting in decreases in plant biomasses [10,14], reductions in microbial biomasses and activities [9], and variations in microbial community composition [15,16]. Changes in plant and AM fungal growth might affect the contents of soil GRSP by altering glomalin production.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Silver Nanoparticles on Arbuscular Mycorrhizal Fungi and Glomalin-Related Soil Proteins in the Rhizosphere of Maize Seedlings

Zhao,

Liu,

Han

et al. 2024

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Glomalin-related soil protein (GRSP), an important arbuscular mycorrhizal (AM) fungal by-product, plays a key role in preserving or sequestrating soil organic carbon (C). Silver nanoparticles (AgNPs) have become an emerging contaminant and their impacts on soil ecosystems attract increasing concerns. The dynamics of AM fungi and GRSP could therefore form the basis for an in-depth exploration of the influences of AgNPs on soil ecosystems. This study investigated the effects of AgNPs on mycorrhizal growth and AM fungal communities, as well as the GRSP contents in maize (Zea mays L.) soils, with a pot experiment. The contributions of GRSP to soil organic C and the correlations of GRSP with soil organic C were also evaluated. The results indicated that AgNPs decreased the mycorrhizal colonization, AM fungal biomass, and diversity indices, and strongly shifted the community composition of AM fungi with a reduction in Acaulosporaceae and an enrichment in Glomeraceae. Additionally, AgNPs also decreased the soil’s easily extractable (EE) GRSP and total (T) GRSP contents, resulting in lower contributions of EE-GRSP-C and T-GRSP-C to the soil organic C. Linkage analyses revealed that AM fungal abundances have positive correlations with EE- and T-GRSP, and EE- and T-GRSP also positively correlated with soil organic C, indicating that the negative effects of AgNPs on AM fungal abundances and communities were extended to AM-fungal-associated C processes. Altogether, our study found that AgNPs decreased the AM fungal abundances shaped AM fungal communities, and reduced the soil GRSP content, which might subsequently be unfavorable for soil C storage.

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Section: Discussionsupporting

confidence: 55%