Effects of sulfonylurea herbicides chlorsulfuron and sulfosulfuron on enzymatic activities and microbial communities in two agricultural soils

Medo, Juraj; Hricáková, Nikola; Maková, Jana; Medová, Janka; Omelka, Radoslav; Javoreková, Soňa

doi:10.1007/s11356-020-10063-0

Cited by 23 publications

(12 citation statements)

References 67 publications

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“…Minor and transitive changes in microbial community composition after application of field rated herbicides are in accordance with results obtained by high throughput sequencing of soil treated by sulfosulfuron and chlorsulfuron 39 or glyphosate, glufosinate, paraquat, and paraquat-diquat 40 . A significant change of microbial community was observed after application of the high dose of dimethachlor.…”

Section: Discussionsupporting

confidence: 86%

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Changes in soil microbial community and activity caused by application of dimethachlor and linuron

Medo

Maková

Medová

et al. 2021

Sci Rep

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Soil microorganisms and their activities are essential for maintaining soil health and fertility. Microorganisms can be negatively affected by application of herbicides. Although effects of herbicides on microorganisms are widely studied, there is a lack of information for chloroacetamide herbicide dimethachlor. Thus, dimethachlor and well known linuron were applied to silty-loam luvisol and their effects on microorganisms were evaluated during112 days long laboratory assay. Dimethachlor and linuron were applied in doses 1.0 kg ha−1 and 0.8 kg ha−1 corresponding to 3.33 mg kg−1 and 2.66 mg kg−1 respectively. Also 100-fold doses were used for magnification of impacts. Linuron in 100-fold dose caused minor increase of respiration, temporal increase of soil microbial biomass, decrease of soil dehydrogenase activity, and altered microbial community. Dimethachlor in 100-fold dose significantly increased respiration; microbial biomass and decreased soil enzymatic activities. Microbial composition changed significantly, Proteobacteria abundance, particularly Pseudomonas and Achromobacter genera increased from 7 to 28th day. In-silico prediction of microbial gene expression by PICRUSt2 software revealed increased expression of genes related to xenobiotic degradation pathways. Evaluated characteristics of microbial community and activity were not affected by herbicides in recommended doses and the responsible use of both herbicides will not harm soil microbial community.

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Section: Discussionsupporting

confidence: 86%

“…To evaluate changes in soil microbial biomass, enzymatic activity and microbial community composition, the soil was incubated in plastic boxes under laboratory conditions. The design of the laboratory assay was similar to that described in our previous work 20 , 39 . Each plastic box (approx.…”

Section: Methodsmentioning

confidence: 99%

Changes in soil microbial community and activity caused by application of dimethachlor and linuron

Medo

Maková

Medová

et al. 2021

Sci Rep

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“…The positive relationship between sorption and OM has been reported previously (Hochman et al 2021;Obregón Alvarez et al 2021;Patel et al 2021). Moreover, the adsorption ability of EPM has been found to be high, similar to those of other herbicides (e.g., chlorsulfuron, imazamethabenz-methyl, flumetsulam, and bispyribac-sodium) (Kalsi and Kaur 2019; Medo et al 2020;Spadotto et al 2020). Generally, a low mobility of herbicides in soil is related to a high sorption constant.…”

Section: Adsorption-desorption Isothermssupporting

confidence: 72%

Environmental Behaviors of (E)-Pyriminobac-methyl in Agricultural Soils

Zhou

Jia

et al. 2021

Preprint

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(E)-Pyriminobac-methyl (EPM), a pyrimidine benzoic acid esters herbicide, has a high potential as weedicide; nevertheless, its environmental behaviors are still not well understood. In this study, we systematically investigated for the first time the adsorption–desorption, degradation, and leaching behaviors of EPM in agricultural soils from five exemplar sites in China (characterized by different physicochemical properties) through laboratory simulation experiments. The EPM adsorption–desorption results were well fitted by the Freundlich model (R2 > 0.9999). In the analyzed soils, the Freundlich adsorption (i.e., Kf-ads) and desorption (i.e., Kf-des) coefficients of EPM varied between 0.85–32.22 mg1−1/n L1/n kg−1 and between 0.78–5.02 mg1−1/n L1/n kg−1, respectively. Moreover, the degradation of EPM reflected first-order kinetics: its half-life ranged between 37.46–66.00 d depending on the environmental conditions, and abiotic degradation was predominant in the degradation of this compound. The mobility of EPM in the five soils varied from immobile to highly mobile. The groundwater ubiquity score ranged between 0.9765–2.7160, indicating that EPM posed threat to groundwater quality. Overall, the results of this study demonstrate the easy degradability of EPM, as well as its high adsorption affinity and low mobility in soils with abundant organic matter content and high cation exchange capacity. Under such conditions, there is a relatively low contamination risk for groundwater systems in relation to this compound. Overall, our findings provide a solid basis for predicting the environmental impacts of EPM.

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“…relationship between sorption and OM has been reported previously (Hochman et al, 2021;Obregón Alvarez et al, 2021;Patel et al, 2021). Moreover, the adsorption ability of EPM has been found to be high, similar to those of other herbicides (e.g., chlorsulfuron, imazamethabenz-methyl, flumetsulam, and bispyribac-sodium) (Kalsi and Kaur, 2019;Medo et al, 2020;Spadotto et al, 2020). Generally, a low mobility of herbicides in soil is related to a high sorption constant.…”

Section: Adsorption-desorption Isothermssupporting

confidence: 65%

Environmental behaviors of (E)-Pyriminobac-methyl in agricultural soils

Zhou

Jia

et al. 2021

Preprint

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Abstract. (E)-Pyriminobac-methyl (EPM), a pyrimidine benzoic acid esters herbicide, has a high potential as weedicide; nevertheless, its environmental behaviors are still not well understood. In this study, we systematically investigated for the first time the adsorption–desorption, degradation, and leaching behaviors of EPM in agricultural soils from five exemplar sites in China (characterized by different physicochemical properties) through laboratory simulation experiments. The EPM adsorption–desorption results were well fitted by the Freundlich model (R2 > 0.9999). In the analyzed soils, the Freundlich adsorption (i.e., Kf-ads) and desorption (i.e., Kf-des) coefficients of EPM varied between 0.85–32.22 mg1−1/n L1/n kg−1 and between 0.78–5.02 mg1−1/n L1/n kg−1, respectively. Moreover, the degradation of EPM reflected first-order kinetics: its half-life ranged between 37.46–66.00 d depending on the environmental conditions, and abiotic degradation was predominant in the degradation of this compound. The mobility of EPM in the five soils varied from immobile to highly mobile. The groundwater ubiquity score ranged between 0.9765–2.7160, indicating that EPM posed threat to groundwater quality. Overall, the results of this study demonstrate the easy degradability of EPM, as well as its high adsorption affinity and low mobility in soils with abundant organic matter content and high cation exchange capacity. Under such conditions, there is a relatively low contamination risk for groundwater systems in relation to this compound. At the same time, due to its slow degradation, EPM has a low adsorption affinity and tends to be highly mobile in soils poor in organic matter content and with low cation exchange capacity. Under such conditions, there is a relatively high contamination risk for groundwater systems in relation to this compound. Overall, our findings provide a solid basis for predicting the environmental impacts of EPM.

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Effects of sulfonylurea herbicides chlorsulfuron and sulfosulfuron on enzymatic activities and microbial communities in two agricultural soils

Cited by 23 publications

References 67 publications

Changes in soil microbial community and activity caused by application of dimethachlor and linuron

Changes in soil microbial community and activity caused by application of dimethachlor and linuron

Environmental Behaviors of (E)-Pyriminobac-methyl in Agricultural Soils

Environmental behaviors of (E)-Pyriminobac-methyl in agricultural soils

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