Horizontal Gene Transfer of an IncP1 Plasmid to Soil Bacterial Community Introduced by Escherichia coli through Manure Amendment in Soil Microcosms
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Horizontal Gene Transfer of an IncP1 Plasmid to Soil Bacterial Community Introduced by Escherichia coli through Manure Amendment in Soil Microcosms. / Macedo, Goncalo; Olesen, Asmus K.; Maccario, Lorrie; Leal, Lucia Hernandez; v. d. Maas, Peter; Heederik, Dick; Mevius, Dik; Sørensen, Søren J.; Schmitt, Heike.
In: Environmental Science & Technology, Vol. 56, No. 16, 2022, p. 11398-11408.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Horizontal Gene Transfer of an IncP1 Plasmid to Soil Bacterial Community Introduced by Escherichia coli through Manure Amendment in Soil Microcosms
AU - Macedo, Goncalo
AU - Olesen, Asmus K.
AU - Maccario, Lorrie
AU - Leal, Lucia Hernandez
AU - v. d. Maas, Peter
AU - Heederik, Dick
AU - Mevius, Dik
AU - Sørensen, Søren J.
AU - Schmitt, Heike
PY - 2022
Y1 - 2022
N2 - The quantification and identification of new plasmid-acquiring bacteria in representative mating conditions is critical to characterize the risk of horizontal gene transfer in the environment. This study aimed to quantify conjugation events resulting from manure application to soils and identify the transconjugants resulting from these events. Conjugation was quantified at multiple time points by plating and flow cytometry, and the transconjugants were recovered by fluorescence-activated cell sorting and identified by 16S rRNA sequencing. Overall, transconjugants were only observed within the first 4 days after manure application and at values close to the detection limits of this experimental system (1.00-2.49 log CFU/g of manured soil, ranging between 10(-5) and 10(-4) transconjugants-to-donor ratios). In the pool of recovered transconjugants, we found amplicon sequence variants (ASVs) of genera whose origin was traced to soils (Bacillus and Nocardioides) and manure (Comamonas and Rahnella). This work showed that gene transfer from fecal to soil bacteria occurred despite the less-than-optimal conditions faced by manure bacteria when transferred to soils, but these events were rare, mainly happened shortly after manure application, and the plasmid did not colonize the soil community. This study provides important information to determine the risks of AMR spread via manure application.
AB - The quantification and identification of new plasmid-acquiring bacteria in representative mating conditions is critical to characterize the risk of horizontal gene transfer in the environment. This study aimed to quantify conjugation events resulting from manure application to soils and identify the transconjugants resulting from these events. Conjugation was quantified at multiple time points by plating and flow cytometry, and the transconjugants were recovered by fluorescence-activated cell sorting and identified by 16S rRNA sequencing. Overall, transconjugants were only observed within the first 4 days after manure application and at values close to the detection limits of this experimental system (1.00-2.49 log CFU/g of manured soil, ranging between 10(-5) and 10(-4) transconjugants-to-donor ratios). In the pool of recovered transconjugants, we found amplicon sequence variants (ASVs) of genera whose origin was traced to soils (Bacillus and Nocardioides) and manure (Comamonas and Rahnella). This work showed that gene transfer from fecal to soil bacteria occurred despite the less-than-optimal conditions faced by manure bacteria when transferred to soils, but these events were rare, mainly happened shortly after manure application, and the plasmid did not colonize the soil community. This study provides important information to determine the risks of AMR spread via manure application.
KW - lateral gene transfer
KW - antibiotic resistance gene
KW - soil microbiome
KW - mating
KW - cattle manure
KW - ANTIBIOTIC-RESISTANCE GENES
KW - ACINETOBACTER-CALCOACETICUS
KW - NATURAL TRANSFORMATION
KW - HOST-RANGE
KW - IN-SITU
KW - WASTE
KW - DNA
KW - BACTERIOPHAGES
KW - PERMISSIVENESS
KW - FERTILIZATION
U2 - 10.1021/acs.est.2c02686
DO - 10.1021/acs.est.2c02686
M3 - Journal article
C2 - 35896060
VL - 56
SP - 11398
EP - 11408
JO - Environmental Science & Technology
JF - Environmental Science & Technology
SN - 0013-936X
IS - 16
ER -
ID: 316117001