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Merck & Co r2a agar medium
Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on <t>R2A</t> agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented
R2a Agar Medium, supplied by Merck & Co, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/r2a+agar+medium/agar+mrs/pmc13065532-71-30-33
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r2a agar medium - by Bioz Stars, 2026-10
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Article Title: Persistence of environmental and wastewater-associated antibiotic resistance in river water

Journal: Environmental Monitoring and Assessment

doi: 10.1007/s10661-026-15246-9

Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on R2A agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented
Figure Legend Snippet: Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on R2A agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented

Techniques Used: Incubation, Bacteria

Related Articles

Bacteria:

Article Title: Persistence of environmental and wastewater-associated antibiotic resistance in river water
Article Snippet: Filters were placed on CHROMagar ESBL selective media (CHROMagar) and incubated at 42 °C for 24 h before quantifying dark pink E. coli colonies. .. River water bacteria from 100 mL of Alb river microcosms incubated at room temperature and at 4 °C at every sampling time filtered using 0.45-μm pore-size filters were cultured on R2A agar medium (Merck) for 48 h at 21 °C. ..

Incubation:

Article Title: Persistence of environmental and wastewater-associated antibiotic resistance in river water
Article Snippet: Filters were placed on CHROMagar ESBL selective media (CHROMagar) and incubated at 42 °C for 24 h before quantifying dark pink E. coli colonies. .. River water bacteria from 100 mL of Alb river microcosms incubated at room temperature and at 4 °C at every sampling time filtered using 0.45-μm pore-size filters were cultured on R2A agar medium (Merck) for 48 h at 21 °C. ..

Sampling:

Article Title: Persistence of environmental and wastewater-associated antibiotic resistance in river water
Article Snippet: Filters were placed on CHROMagar ESBL selective media (CHROMagar) and incubated at 42 °C for 24 h before quantifying dark pink E. coli colonies. .. River water bacteria from 100 mL of Alb river microcosms incubated at room temperature and at 4 °C at every sampling time filtered using 0.45-μm pore-size filters were cultured on R2A agar medium (Merck) for 48 h at 21 °C. ..

Cell Culture:

Article Title: Persistence of environmental and wastewater-associated antibiotic resistance in river water
Article Snippet: Filters were placed on CHROMagar ESBL selective media (CHROMagar) and incubated at 42 °C for 24 h before quantifying dark pink E. coli colonies. .. River water bacteria from 100 mL of Alb river microcosms incubated at room temperature and at 4 °C at every sampling time filtered using 0.45-μm pore-size filters were cultured on R2A agar medium (Merck) for 48 h at 21 °C. ..



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Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on <t>R2A</t> agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented
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Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on <t>R2A</t> agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented
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Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on <t>R2A</t> agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented
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Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on <t>R2A</t> agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented
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Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on <t>R2A</t> agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented
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Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on R2A agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented

Journal: Environmental Monitoring and Assessment

Article Title: Persistence of environmental and wastewater-associated antibiotic resistance in river water

doi: 10.1007/s10661-026-15246-9

Figure Lengend Snippet: Persistence of bacterial subpopulations in microcosms from the Alb river at two incubation temperatures (20 °C and 4 °C) and the Rhône river at 20 °C, with or without treated wastewater addition over 10 weeks. A abundance of total E. coli cells quantified using the IDEXX Colilert test ( N = 144). B Colony-forming units (CFU) of ESBL-producing E. coli grown on CHROMagar medium ( N = 140). C CFU of total ( N = 96) and D ESBL-producing ( N = 96) bacteria grown on R2A agar. RW, river water. RW + WW, river water with 5% v/v wastewater addition. Values under the detection limit (1 cell/1 CFU) for graphs A – D and missing values from the Rhône for graphs C and D are not represented

Article Snippet: River water bacteria from 100 mL of Alb river microcosms incubated at room temperature and at 4 °C at every sampling time filtered using 0.45-μm pore-size filters were cultured on R2A agar medium (Merck) for 48 h at 21 °C.

Techniques: Incubation, Bacteria