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Iancu L, Angelescu IR, Paun VI, Henríquez-Castillo C, Lavin P, Purcarea C. Microbiome pattern of Lucilia sericata (Meigen) (Diptera: Calliphoridae) and feeding substrate in the presence of the foodborne pathogen Salmonella enterica. Sci Rep 2021; 11:15296. [PMID: 34315964 PMCID: PMC8316364 DOI: 10.1038/s41598-021-94761-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/16/2021] [Indexed: 12/04/2022] Open
Abstract
The microbial diversity and quantitative dynamics during the insect’s development stages constitute recently developed putative tools in forensic and medical studies. Meanwhile, little is known on the role of insects in spreading foodborne pathogenic bacteria and on the impact of these pathogens on the overall insects and feeding substrate microbiome composition. Here, we provide the first characterization of the bacterial communities harbored in adult and immature stages of Lucilia sericata, one of the first colonizers of decomposed human remains, in the presence of the foodborne pathogen Salmonella enterica using 16S rRNA Illumina sequencing and qPCR. The pathogen transmission from the wild adults to the second generation was observed, with a 101.25× quantitative increase. The microbial patterns from both insect and liver samples were not influenced by the artificial introduction of this pathogenic foodborne bacteria, being dominated by Firmicutes and Proteobacteria. Overall, our results provided a first detailed overview of the insect and decomposed substrate microbiome in the presence of a human pathogen, advancing the knowledge on the role of microbes as postmortem interval estimators and the transmission of pathogenic bacteria.
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Affiliation(s)
- Lavinia Iancu
- Department of Microbiology, Institute of Biology Bucharest of Romanian Academy, Splaiul Independentei, 296, 060031, Bucharest, Romania. .,Department of Criminal Justice, University of North Dakota, Grand Forks, ND, 58202, USA.
| | - Iulia Roxana Angelescu
- Department of Microbiology, Institute of Biology Bucharest of Romanian Academy, Splaiul Independentei, 296, 060031, Bucharest, Romania
| | - Victoria Ioana Paun
- Department of Microbiology, Institute of Biology Bucharest of Romanian Academy, Splaiul Independentei, 296, 060031, Bucharest, Romania
| | - Carlos Henríquez-Castillo
- Laboratorio de Fisiología y Genética Marina, Centro de Estudios Avanzados en Zonas Áridas, 1781421, Coquimbo, Chile.,Facultad de Ciencias del Mar, Universidad Católica del Norte, 1781421, Coquimbo, Chile
| | - Paris Lavin
- Departamento de Biotecnología, Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile.,Laboratorio de Complejidad Microbiana y Ecología Funcional, Instituto Antofagasta, Antofagasta, Chile
| | - Cristina Purcarea
- Department of Microbiology, Institute of Biology Bucharest of Romanian Academy, Splaiul Independentei, 296, 060031, Bucharest, Romania
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