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Foysal MJ, Kawser AQMR, Paul SI, Chaklader MR, Gupta SK, Tay A, Neilan BA, Gagnon MM, Fotedar R, Rahman MM, Timms VJ. Prevalence of opportunistic pathogens and anti-microbial resistance in urban aquaculture ponds. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134661. [PMID: 38815393 DOI: 10.1016/j.jhazmat.2024.134661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 05/15/2024] [Accepted: 05/18/2024] [Indexed: 06/01/2024]
Abstract
Bacterial antimicrobial resistance (AMR) has emerged as a significant concern worldwide. The microbial community profile and potential AMR level in aquaculture ponds are often undervalued and attract less attention than other aquatic environments. We used amplicon and metagenomic shotgun sequencing to study microbial communities and AMR in six freshwater polyculture ponds in rural and urban areas of Bangladesh. Amplicon sequencing revealed different community structures between rural and urban ponds, with urban ponds having a higher bacterial diversity and opportunistic pathogens including Streptococcus, Staphylococcus, and Corynebacterium. Despite proteobacterial dominance, Firmicutes was the most interactive in the community network, especially in the urban ponds. Metagenomes showed that drug resistance was the most common type of AMR found, while metal resistance was only observed in urban ponds. AMR and metal resistance genes were found mainly in beta and gamma-proteobacteria in urban ponds, while AMR was found primarily in alpha-proteobacteria in rural ponds. We identified potential pathogens with a high profile of AMR and metal resistance in urban aquaculture ponds. As these ponds provide a significant source of protein for humans, our results raise significant concerns for the environmental sustainability of this food source and the dissemination of AMR into the food chain.
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Affiliation(s)
- Md Javed Foysal
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, Australia; School of Molecular and Life Sciences, Curtin University, Perth, WA, Australia; Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh.
| | - A Q M Robiul Kawser
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh; School of Veterinary Medicine and Science, University of Nottingham, United Kingdom
| | - Sulav Indra Paul
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh; Institute for Biosecurity and Microbial Forensics, Oklahoma State University, OK, USA
| | - Md Reaz Chaklader
- Department of Primary Industries and Regional Development, Fremantle, WA, Australia
| | - Sanjay Kumar Gupta
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand, India
| | - Alfred Tay
- School of Biomedical Sciences, University of Western Australia, Perth, Australia
| | - Brett A Neilan
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, Australia
| | | | - Ravi Fotedar
- School of Molecular and Life Sciences, Curtin University, Perth, WA, Australia
| | - Md Mahbubur Rahman
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
| | - Verlaine J Timms
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, Australia
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Shamseldean MSM, Attia MM, Korany RMS, Othman NA, Allam SFM. Comparative biotoxicity study for identifying better alternative insecticide especially green nano-emulsion which used as mosquitocides. BMC Vet Res 2024; 20:149. [PMID: 38643105 PMCID: PMC11031904 DOI: 10.1186/s12917-024-03992-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/26/2024] [Indexed: 04/22/2024] Open
Abstract
This research work was planned to test biosafety of different nanomaterials on the different animals models. These nanoparticles were previously used as potential insecticides of mosquito larvae. The biosafety of these nanoproducts were evaluated on certain organs of non target animals that associated with mosquito breeding sites in Egypt. Animal organs such as the kidneys of rats, toads, and the fish's spleen were used as models to study the biological toxicity of these nanomaterials. After 30 days of the animals receiving the nanomaterials in their water supply, different cell mediated immune cells were assessed in these tissues. Both TNF-α and BAX immuno-expression were also used as immunohistochemical markers. Histopathology was conducted to detect the effect of the tested nanoproducts at the tissue level of the liver and kidneys of both the rats and toads. Green nanoemulsion of the lavender essential oil was relatively more effective, safe, and biodegradable to be used as insecticides against mosquito larvae than the metal-based nanomaterials.
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Affiliation(s)
- Muhammad S M Shamseldean
- Applied Center for Entomonematodes, Department of Zoology and Agricultural Nematology, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
| | - Marwa M Attia
- Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Reda M S Korany
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Nehal A Othman
- Applied Center for Entomonematodes, Department of Zoology and Agricultural Nematology, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
| | - Sally F M Allam
- Applied Center for Entomonematodes, Department of Zoology and Agricultural Nematology, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
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Duarte JL, Di Filippo LD, de Faria Mota Oliveira AEM, Sábio RM, Marena GD, Bauab TM, Duque C, Corbel V, Chorilli M. Development and characterization of potential larvicidal nanoemulsions against Aedes aegypti. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2024; 15:104-114. [PMID: 38264062 PMCID: PMC10804528 DOI: 10.3762/bjnano.15.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 12/21/2023] [Indexed: 01/25/2024]
Abstract
Plant-based insecticides offer advantages such as negligible residual effects, reduced risks to both humans and the environment, and immunity to resistance issues that plague conventional chemicals. However, the practical use of monoterpenes in insect control has been hampered by challenges including their poor solubility and stability in aqueous environments. In recent years, the application of nanotechnology-based formulations, specifically nanoemulsions, has emerged as a prospective strategy to surmount these obstacles. In this study, we developed and characterized nanoemulsions based on cymene and myrcene and assessed their toxicity both in vitro using human keratinocytes (HaCAT) cells and in an in vivo model involving Galleria mellonella larvae. Additionally, we investigated the insecticidal efficacy of monoterpenes against the mosquito Aedes aegypti, the primary dengue vector, via larval bioassay. Employing a low-energy approach, we successfully generated nanoemulsions. The cymene-based nanoemulsion exhibited a hydrodynamic diameter of approximately 98 nm and a zeta potential of -25 mV. The myrcene-based nanoemulsion displayed a hydrodynamic diameter of 118 nm and a zeta potential of -20 mV. Notably, both nanoemulsions demonstrated stability over 60 days, accompanied by controlled release properties and low toxicity towards HaCAT cells and Galleria mellonella larvae. Moreover, the nanoemulsions exhibited significant lethality against third-instar Aedes aegypti larvae at a concentration of 50 mg/L. In conclusion, the utilization of nanoemulsions encapsulating cymene and myrcene presents a promising avenue for overcoming the limitations associated with poor solubility and stability of monoterpenes. This study sheds light on the potential of the nanoemulsions as effective and environmentally friendly insecticides in the ongoing battle against mosquito-borne diseases.
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Affiliation(s)
- Jonatas L Duarte
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Leonardo Delello Di Filippo
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | | | - Rafael Miguel Sábio
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Gabriel Davi Marena
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
- Department of Biological Sciences, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, São Paulo, Brazil
| | - Tais Maria Bauab
- Department of Biological Sciences, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, São Paulo, Brazil
| | - Cristiane Duque
- Department of Preventive and Restorative Dentistry, Araçatuba Dental School - São Paulo State University (UNESP), Araçatuba, SP, Brazil
| | - Vincent Corbel
- Institut de Recherche pour le Développement (IRD), MIVEGEC, Univ. Montpellier, CNRS, IRD, 911 Av Agropolis, 34 394 Montpellier, France
- Fundação Oswaldo Cruz (FIOCRUZ), Instituto Oswaldo Cruz (IOC), Laboratório de Fisiologia e Controle de Artrópodes Vetores (Laficave). Avenida Brasil, 4365 Manguinhos, Rio de Janeiro – RJ, CEP: 21040-360, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
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