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r2a agar medium  (Merck & Co)
86
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/pmc13065532-71-30-33?v=Merck+%26+Co
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r2a agar medium - by Bioz Stars, 2026-07
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r2a agar medium  (Difco)
86
Difco 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 Difco, 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/pmc12401914-85-22-25?v=Difco
Average 86 stars, based on 1 article reviews
r2a agar medium - by Bioz Stars, 2026-07
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solid mediums r2a agar  (Difco)
90
Difco solid mediums r2a agar
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
Solid Mediums R2a Agar, supplied by Difco, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/r2a+agar+medium/pmc12079262-246-4-5?v=Difco
Average 90 stars, based on 1 article reviews
solid mediums r2a agar - by Bioz Stars, 2026-07
90/100 stars
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r2a 25% ( w / v ) agar medium  (Difco)
90
Difco r2a 25% ( w / v ) 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 25% ( W / V ) Agar Medium, supplied by Difco, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/r2a+agar+medium/pmc12029414-49-52-13?v=Difco
Average 90 stars, based on 1 article reviews
r2a 25% ( w / v ) agar medium - by Bioz Stars, 2026-07
90/100 stars
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agar r2a medium  (Difco)
90
Difco agar r2a 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
Agar R2a Medium, supplied by Difco, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/r2a+agar+medium/pm40004495-69-11-10?v=Difco
Average 90 stars, based on 1 article reviews
agar r2a medium - by Bioz Stars, 2026-07
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reasoners 2 agar (r2a) medium  (HiMedia Laboratories)
90
HiMedia Laboratories reasoners 2 agar (r2a) 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
Reasoners 2 Agar (R2a) Medium, supplied by HiMedia Laboratories, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/r2a+agar+medium/pm39920455-50-24-46?v=HiMedia+Laboratories
Average 90 stars, based on 1 article reviews
reasoners 2 agar (r2a) medium - by Bioz Stars, 2026-07
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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