Screening and evaluation of Biofilm forming antibiotic-resistant bacterial strains isolated from wastewater treatment plants and river environment

This study aimed to assess the antibiotic resistance and biofilm formation efficiency in different bacterial strains isolated from wastewater treatment plants (WWTPs) and Ganges River environments of three North Indian cities in summer and winter. A total of 104 morphologically distinct bacterial s...

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Main Authors: Arun Kumar Pal, Pooja Tripathi, Vijay Tripathi
Format: Article
Language:English
Published: Action for Sustainable Efficacious Development and Awareness 2025-03-01
Series:Environment Conservation Journal
Subjects:
Online Access:https://journal.environcj.in/index.php/ecj/article/view/2956
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author Arun Kumar Pal
Pooja Tripathi
Vijay Tripathi
author_facet Arun Kumar Pal
Pooja Tripathi
Vijay Tripathi
author_sort Arun Kumar Pal
collection DOAJ
description This study aimed to assess the antibiotic resistance and biofilm formation efficiency in different bacterial strains isolated from wastewater treatment plants (WWTPs) and Ganges River environments of three North Indian cities in summer and winter. A total of 104 morphologically distinct bacterial strains were isolated from wastewater and river samples and molecularly characterized by 16S rRNA gene sequencing. All bacterial strains showed multidrug resistance against the most commonly used antibiotics. The biofilm formation ability of bacterial strains was evaluated through the crystal violet method. According to the results, 54.38% of bacterial isolates were strong biofilm formers isolated in the summer season, whereas 35.41% isolated in the winter were strong biofilm formers after 72 hours of incubation. Among the biofilm-forming bacterial isolates, the highest autoaggregation index was observed in Kerstersia gyiorum (summer) and Bacillus cereus (winter). However, some bacterial strains capable of biofilm formation showed no aggregation properties. Thus, the present study showed that multidrug-resistant bacterial strains isolated from wastewater and river environments can form biofilm. Also, this study suggested the development of innovative bioinocula in antibiotic degradation and preventing biofilm development.
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language English
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series Environment Conservation Journal
spelling doaj-art-3f886e92dcf44cd5bb9f4eef2b110c312025-08-20T03:47:16ZengAction for Sustainable Efficacious Development and AwarenessEnvironment Conservation Journal0972-30992278-51242025-03-0126210.36953/ECJ.29562934Screening and evaluation of Biofilm forming antibiotic-resistant bacterial strains isolated from wastewater treatment plants and river environmentArun Kumar Pal0Pooja Tripathi1Vijay Tripathi2Department of Molecular and Cellular Engineering, Jacob Institute of Biotechnology and Bioengineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, U.P, IndiaDepartment of Computational Biology and Bioinformatics, Jacob Institute of Biotechnology and Bioengineering,Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, U.P, IndiaDepartment of Microbiology Graphic Era deemed to be University Clement Town, Dehradun, India This study aimed to assess the antibiotic resistance and biofilm formation efficiency in different bacterial strains isolated from wastewater treatment plants (WWTPs) and Ganges River environments of three North Indian cities in summer and winter. A total of 104 morphologically distinct bacterial strains were isolated from wastewater and river samples and molecularly characterized by 16S rRNA gene sequencing. All bacterial strains showed multidrug resistance against the most commonly used antibiotics. The biofilm formation ability of bacterial strains was evaluated through the crystal violet method. According to the results, 54.38% of bacterial isolates were strong biofilm formers isolated in the summer season, whereas 35.41% isolated in the winter were strong biofilm formers after 72 hours of incubation. Among the biofilm-forming bacterial isolates, the highest autoaggregation index was observed in Kerstersia gyiorum (summer) and Bacillus cereus (winter). However, some bacterial strains capable of biofilm formation showed no aggregation properties. Thus, the present study showed that multidrug-resistant bacterial strains isolated from wastewater and river environments can form biofilm. Also, this study suggested the development of innovative bioinocula in antibiotic degradation and preventing biofilm development. https://journal.environcj.in/index.php/ecj/article/view/2956AntibioticAntibiotic resistanceBiofilmMultidrug resistancewastewater treatment
spellingShingle Arun Kumar Pal
Pooja Tripathi
Vijay Tripathi
Screening and evaluation of Biofilm forming antibiotic-resistant bacterial strains isolated from wastewater treatment plants and river environment
Environment Conservation Journal
Antibiotic
Antibiotic resistance
Biofilm
Multidrug resistance
wastewater treatment
title Screening and evaluation of Biofilm forming antibiotic-resistant bacterial strains isolated from wastewater treatment plants and river environment
title_full Screening and evaluation of Biofilm forming antibiotic-resistant bacterial strains isolated from wastewater treatment plants and river environment
title_fullStr Screening and evaluation of Biofilm forming antibiotic-resistant bacterial strains isolated from wastewater treatment plants and river environment
title_full_unstemmed Screening and evaluation of Biofilm forming antibiotic-resistant bacterial strains isolated from wastewater treatment plants and river environment
title_short Screening and evaluation of Biofilm forming antibiotic-resistant bacterial strains isolated from wastewater treatment plants and river environment
title_sort screening and evaluation of biofilm forming antibiotic resistant bacterial strains isolated from wastewater treatment plants and river environment
topic Antibiotic
Antibiotic resistance
Biofilm
Multidrug resistance
wastewater treatment
url https://journal.environcj.in/index.php/ecj/article/view/2956
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AT poojatripathi screeningandevaluationofbiofilmformingantibioticresistantbacterialstrainsisolatedfromwastewatertreatmentplantsandriverenvironment
AT vijaytripathi screeningandevaluationofbiofilmformingantibioticresistantbacterialstrainsisolatedfromwastewatertreatmentplantsandriverenvironment