Glyphosate Biodegradation Potential in Soil Based on Glycine Oxidase Gene (thiO) from Bradyrhizobium

Guijarro, Keren Hernández; Gerónimo, Eduardo De; Erijman, Leonardo

doi:10.1007/s00284-021-02467-z

Cited by 11 publications

(2 citation statements)

References 47 publications

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“…To assess the functional potential of the prokaryotic community in soil samples, Pi-crust2 [57] metabolic inference approaches were used with an updated KEGG PATHWAY database (July 2022) [31] and Enzyme Classification numbers from MetaCyc (EC) [58]. Enzymes and metabolic pathways related to glyphosate included thiO (EC:1.4.3.19) [59], phnP (EC:3.1.4.55), phnN (EC:2.7.4.23), phnM (EC:3.6.1.63), phnJ (EC:4.7.1.1) and phnIGHL (EC:2.7.8.37) [60], and shikimate pathway (M00022), which are all related to glyphosate degradation in the soil and also the shikimate pathway known to be affected by glyphosate. Functional potentials of general pathways such as sulfur metabolism (M00176; M00596; M00595), phosphonate metabolism (Ko00440), nitrification (M00175; M00528; M00530; M00531; M00804), denitrification (M00529; M00973), and carbon fixation (M00165 to M00173; M00374 to M00377; M00579; M00620) were computed.…”

Section: Soil Physico-chemical Properties Analysismentioning

confidence: 99%

Impacts of Cropping Systems on Glyphosate and Aminomethylphosphonic Acid Contents and Microbial Community in Field Crop Soils in Quebec (Canada)

Overbeek,

Lucotte,

D’Astous-Pagé

et al. 2024

Agronomy

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Glyphosate-based herbicide (GBH) usage is ubiquitous in Quebec field crops, apart from organic management. As glyphosate generally degrades rapidly in agricultural soils, aminomethylphosphonic acid (AMPA) is produced and persists longer than glyphosate. Repeated GBH applications year after year raise questions about glyphosate and AMPA pseudo-persistence in soils and its possible impacts on the soil microbial community. This research aims at understanding the influence of cropping systems and edaphic properties on glyphosate and AMPA contents and on the diversity and composition of the soil microbial community across nine field crop fields located in Southern Quebec (Canada) during 2019 and 2020. Average glyphosate soil contents (0.16 ± 0.15 µg·g−1 dry soil) were lower than average AMPA soil contents (0.37 ± 0.24 µg·g−1 dry soil). Glyphosate and AMPA contents were significantly lower at sites cultivated under organic management than conventional management. For conventional sites, cumulative GBH doses had a significant effect on glyphosate soil contents measured at the end of the growing season, but not on AMPA soil contents. Sites with higher GBH applications appear to accumulate glyphosate over time in the 0–40 cm soil horizon. Glyphosate and AMPA soil contents are inversely proportional to soil pH. Soil prokaryotic and fungal communities’ alpha-diversity, beta-diversity, and functional potential were not impacted by cumulative GBH doses, but rather by soil chemical properties, soil texture, crop rotation, and manure inputs.

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Section: Soil Physico-chemical Properties Analysismentioning

confidence: 99%

Impacts of Cropping Systems on Glyphosate and Aminomethylphosphonic Acid Contents and Microbial Community in Field Crop Soils in Quebec (Canada)

Overbeek,

Lucotte,

D’Astous-Pagé

et al. 2024

Agronomy

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“…Overall, pesticides and herbicides have a negative impact on N-fixing cyanobacterial growth; however, organophosphorus herbicides and insecticides can be degraded by certain cyanobacterial and heterocytous diazotrophs or even used for P uptake, resulting in either no effect or an increase in population (Hove-Jensen et al 2014 , Guijarro et al 2018 , Singh Kaushik et al 2018 , Hernández Guijarro et al 2021 ). Unfortunately, there is a lack of recent studies that differentiate the influence of agrochemicals on heterotrophic or autotrophic diazotrophs, but earlier work found that heterotrophic and cyanobacterial N-fixation activities are sensitive to herbicide and fungicide addition (Martensson 1993 ).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-fixing bacterial communities differ between perennial agroecosystem crops

Sorochkina,

Martens-Habbena,

Reardon

et al. 2024

FEMS Microbiology Ecology

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Biocrusts, common in natural ecosystems, are specific assemblages of microorganisms at or on the soil surface with associated microorganisms extending into the top centimeter of soil. Agroecosystem biocrusts have similar rates of nitrogen (N) fixation as those in natural ecosystems, but it is unclear how agricultural management influences their composition and function. This study examined the total bacterial and diazotrophic communities of biocrusts in a citrus orchard and a vineyard that shared similar climate and soil type but differed in management. To contrast climate and soil type, these biocrusts were also compared to those from an apple orchard. Unlike natural ecosystem biocrusts, these agroecosystem biocrusts were dominated by proteobacteria and had a lower abundance of cyanobacteria. All examined agroecosystem biocrust diazotroph communities were dominated by N-fixing cyanobacteria from the Nostocales order, similar to natural ecosystem cyanobacterial biocrusts. Lower irrigation and fertilizer in the vineyard compared to the citrus orchard could have contributed to biocrust microbial composition, whereas soil type and climate could have differentiated the apple orchard biocrust. Season did not influence bacterial and diazotrophic community composition of any these agroecosystem biocrusts. Overall, agricultural management and climatic and edaphic factors potentially influenced community composition and function of these biocrusts.

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Microbiomes and glyphosate biodegradation in edaphic and aquatic environments: recent issues and trends

Zabaloy

Allegrini

Guijarro

et al. 2022

World J Microbiol Biotechnol

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Glyphosate Biodegradation Potential in Soil Based on Glycine Oxidase Gene (thiO) from Bradyrhizobium

Cited by 11 publications

References 47 publications

Impacts of Cropping Systems on Glyphosate and Aminomethylphosphonic Acid Contents and Microbial Community in Field Crop Soils in Quebec (Canada)

Impacts of Cropping Systems on Glyphosate and Aminomethylphosphonic Acid Contents and Microbial Community in Field Crop Soils in Quebec (Canada)

Nitrogen-fixing bacterial communities differ between perennial agroecosystem crops

Microbiomes and glyphosate biodegradation in edaphic and aquatic environments: recent issues and trends

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