Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/135275
Título: Dissemination of antibiotic-resistant bacteria associated with microplastics collected from Monastir and Mahdia coasts (Tunisia)
Autores/as: Hassen, Wafa
Danioux, Anthony
Oueslati, Amira
Santana-Rodríguez, José Juan 
Sire, Olivier
Sedrati, Mouncef
Ben Mansour, Hedi 
Clasificación UNESCO: 251002 Oceanografía química
Palabras clave: Microplastics (MPs)
Environmental impact
Microplastic-associated bacterial isolates
Acinetobacter
Antibiotic resistance, et al.
Fecha de publicación: 2025
Publicación seriada: Microbial Pathogenesis 
Resumen: The exponential use of plastics and their recalcitrant nature leads to their significant accumulation in the environment. The occurrence of plastic wastes is considered as a serious environmental problem. Additionally, plastic wastes can break down into smaller pieces called microplastics (MPs), leading to further interactions with the environment and living organisms. In this study, sixty-six strains were isolated from microplastic particles collected on different coastal areas of Monastir and Mahdia (Tunisia). The different bacterial isolates were identified according to some biochemical tests such as catalase, oxidase, and were subjected to molecular characterization. Amplification of the internal transcribed spacer (ITS) revealed the presence of 31 ITS haplotypes. The partial sequencing of the 16S ribosomal DNA of representative strains was analyzed. The majority of bacterial isolates (84.31 %) belonged to Gamma-proteobacteria (84.78 %), while the remaining isolates were affiliated to Firmicutes (15.21 %). The microplastic-associated bacterial isolates belonged to 10 genera, namely Acinetobacter, Pseudomonas, Bacillus, Staphylococcus, Shewanella, Aeromonas, Vibrio, Stutzerimonas, Exiguobacterium, Enterobacter. Among the well-represented Acinetobacter genus, the most common species identified was Acinetobacter johnsonii. Susceptibility patterns of these strains were studied against 21 antibiotics commonly used in Tunisia. A high level of antibiotic resistance was observed for Penicillin G (97.82 %) and Temocillin (86.95 %). S26 strain presented the highest multidrug resistance with a multiple antibiotic resistance (MAR) index of 0.71.
URI: http://hdl.handle.net/10553/135275
ISSN: 0882-4010
DOI: 10.1016/j.micpath.2024.107193
Fuente: Microbial Pathogenesis [ISSN 0882-4010], v. 198, 107193, (Enero 2025)
Colección:Artículos
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