Chemical attributes, bacterial community, and antibiotic resistance genes are affected by intensive use of soil in agro-ecosystems of the Atlantic Forest, Southeastern Brazil.

Autor: Ferreira PFA; Departament of Soil, Institute of Agronomy, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-970, Brazil., Rocha FI; Mokichi Okada Research Center, Korin Agriculture and Environment, Ipeúna, São Paulo, Brazil., Howe A; Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA, USA., Barbosa DR; Departament of Soil, Institute of Agronomy, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-970, Brazil., da Conceição Jesus E; Embrapa Agrobiology, Brazilian Agricultural Research Corporation, Seropédica, Rio de Janeiro, 23891-000, Brazil., do Amaral Sobrinho NMB; Departament of Soil, Institute of Agronomy, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-970, Brazil., da Silva Coelho I; Department of Veterinary Microbiology and Immunology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-970, Brazil. irenecoelho@ufrrj.br.
Jazyk: angličtina
Zdroj: Environmental geochemistry and health [Environ Geochem Health] 2024 Mar 14; Vol. 46 (4), pp. 123. Date of Electronic Publication: 2024 Mar 14.
DOI: 10.1007/s10653-024-01894-8
Abstrakt: Soil is one of the largest reservoirs of microbial diversity in nature. Although soil management is vital for agricultural purposes, intensive practices can have a significant impact on fertility, microbial community, and resistome. Thus, the aim of this study was to evaluate the effects of an intensive soil management system on the chemical attributes, composition and structure of prevalent bacterial communities, and presence and abundance of antimicrobial resistance genes (ARGs). The chemical characterization, bacterial diversity and relative abundance of ARGs were evaluated in soils from areas of intensive vegetable cultivation and forests. Results indicate that levels of nutrients and heavy metals were higher in soil samples from cultivated areas. Similarly, greater enrichment and diversity of bacterial genera was detected in agricultural areas. Of the 18 target ARGs evaluated, seven were detected in studied soils. The oprD gene exhibited the highest abundance among the studied genes and was the only one that showed a significantly different prevalence between areas. The oprD gene was identified only from soil of the cultivated areas. The bla SFO , erm(36), oprD and van genes, in addition to the pH, showed greater correlation with in soil of cultivated areas, which in turn exhibited higher contents of nutrients. Thus, in addition to changes in chemical attributes and in the microbial community of the soil, intensive agricultural cultivation systems cause a modification of its resistome, reinforcing the importance of the study of antimicrobial resistance in a One Health approach.
(© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)
Databáze: MEDLINE
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