1
|
Bhaskaran R, Ramachandra KSS, Peter R, Gopakumar ST, Gopalan MK, Mozhikulangara RR. Antimicrobial resistance and antagonistic features of bivalve-associated Vibrio parahaemolyticus from the south-west coast of India. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:107681-107692. [PMID: 37740157 DOI: 10.1007/s11356-023-29924-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 09/13/2023] [Indexed: 09/24/2023]
Abstract
Vibrio parahaemolyticus, a potent human and aquatic pathogen, is usually found in estuaries and oceans. Human illness is associated with consuming uncooked/partially cooked contaminated seafood. The study on bivalve-associated V. parahaemolyticus revealed that the post-monsoon season had the highest bacterial abundance (9 ± 1.5 log cfu) compared to the monsoon season (8.03 ± 0.56 log cfu). Antimicrobial resistance (AMR) profiling was performed on 114 V. parahaemolyticus isolates obtained from bivalves. The highest AMR was observed against ampicillin (78%). Chloramphenicol was found to be effective against all the isolates. Multiple antibiotic resistance index values of 0.2 or higher were detected in 18% of the isolates. Molecular analysis of antimicrobial resistant genes (ARGs) revealed the high prevalence (100%) of the TEM-1 gene in the aquatic environment. After plasmid profiling and curing, 41.6% and 100% of the resistant isolates were found to be sensitive to ampicillin and cephalosporins, respectively, indicating the prevalence of plasmid-associated ARGs in the aquatic environment. A study to evaluate the antagonistic properties of Bacillus subtilis, Pseudomonas aeruginosa, and Bacillus amyloliquefaciens against V. parahaemolyticus isolates identified the potential of these bacteria to resist the growth of V. parahaemolyticus.
Collapse
Affiliation(s)
- Remya Bhaskaran
- Marine Biotechnology, Fish Nutrition and Health Division (MBFNHD), ICAR-Central Marine Fisheries Research Institute, Post Box No. 1603, Kochi, Ernakulam North (P.O.), 682 018, India
- Department of Biosciences, Mangalore University, Mangalagangotri - 574 199, Karnataka State, India
| | - Krupesha Sharma Sulumane Ramachandra
- Marine Biotechnology, Fish Nutrition and Health Division (MBFNHD), ICAR-Central Marine Fisheries Research Institute, Post Box No. 1603, Kochi, Ernakulam North (P.O.), 682 018, India.
| | - Reynold Peter
- Marine Biotechnology, Fish Nutrition and Health Division (MBFNHD), ICAR-Central Marine Fisheries Research Institute, Post Box No. 1603, Kochi, Ernakulam North (P.O.), 682 018, India
| | - Sumithra Thangalazhy Gopakumar
- Marine Biotechnology, Fish Nutrition and Health Division (MBFNHD), ICAR-Central Marine Fisheries Research Institute, Post Box No. 1603, Kochi, Ernakulam North (P.O.), 682 018, India
| | - Mini Kalappurakkal Gopalan
- Fishery Resources Assessment, Economics and Extension Division (FRAEED), ICAR-Central Marine Fisheries Research Institute, Post Box No. 1603, Kochi, Ernakulam North (P.O.), 682 018, India
| | - Rithin Raj Mozhikulangara
- School of Industrial Fisheries, Cochin University of Science and Technology (CUSAT), Lakeside Campus, Kochi, 682 016, India
| |
Collapse
|
2
|
Hallmann A, Leszczyńska D, Czumaj A, Świeżak J, Caban M, Michnowska A, Smolarz K. Oxytetracycline-induced inflammatory process without oxidative stress in blue mussels Mytilus trossulus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:80462-80477. [PMID: 37301807 PMCID: PMC10345040 DOI: 10.1007/s11356-023-28057-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Potentially harmful compounds including pharmaceuticals are commonly found in marine waters and sediments. Amongst those, antibiotics and their metabolites are detected worldwide in various abiotic (at concentrations as high as µg/L) and biotic matrices at ng/gram of tissue, posing a risk to non-target species exposed to them such as blue mussels. Amongst those, oxytetracycline (OTC) belongs to the most detected antibiotics in the marine environment. In this work, we concentrated on studying the potential induction of oxidative stress, activation of cellular detoxification processes (including Phase I and Phase II xenobiotic biotransformation enzymes) and multixenobiotic resistance pumps (Phase III) as well as changes in the aromatisation efficiency in Mytilus trossulus exposed to 100 μg/L OTC. Our results show that 100 µg/L OTC concentration did not provoke cellular oxidative stress and did not affect the expression of genes involved in detoxification processes in our model. Moreover, no effect of OTC on aromatisation efficiency was found. Instead, phenoloxidase activity measured in haemolymph was significantly higher in OTC exposed mussels than in those from the control (30.95 ± 3.33 U/L and 17.95 ± 2.75 U/L, respectively). OTC exposed mussels were also characterised by a tissue-dependant activation of major vault protein (MVP) gene expression (1.5 times higher in gills and 2.4 times higher in the digestive system) and a decreased expression of the nuclear factor kappa B-a (NF-κB) gene (3.4 times lower in the digestive system) when compared to those from the control. Additionally, an elevated number of regressive changes and inflammatory responses in tissues such as gills, digestive system and mantle (gonads) was observed underlining the worsening of bivalves' general health. Therefore, instead of a free-radical effect of OTC, we for the first time describe the occurrence of typical changes resulting from antibiotic therapy in non-target organisms like M. trossulus exposed to antibiotics such as OTC.
Collapse
Affiliation(s)
- Anna Hallmann
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, Poland
| | - Dagmara Leszczyńska
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, Poland
| | - Aleksandra Czumaj
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, Gdańsk, Poland
| | - Justyna Świeżak
- Department of Marine Ecosystem Functioning, University of Gdańsk, Gdynia, Poland
| | - Magda Caban
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
| | - Alicja Michnowska
- Department of Marine Ecosystem Functioning, University of Gdańsk, Gdynia, Poland
| | - Katarzyna Smolarz
- Department of Marine Ecosystem Functioning, University of Gdańsk, Gdynia, Poland.
| |
Collapse
|
3
|
Li F, Gao H, Zhu P, Li Z, Zhao W, Song J, Yang S. Moraxella nasicaprae sp. nov., Isolated from a Goat with Respiratory Disease. Curr Microbiol 2023; 80:78. [PMID: 36651991 DOI: 10.1007/s00284-023-03185-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/05/2023] [Indexed: 01/19/2023]
Abstract
A novel Gram-stain-negative, aerobic, irregular coccus designated as ZY201224T, was isolated from the nasal cavity of a goat with respiratory disease in a goat farm, located at Jianshui, Yunnan Province, PR China and its taxonomic position was clarified using a polyphasic approach. The strain grew optimally at 37 °C, at pH 8.0 and in the presence of 1% NaCl. Phylogenetic analysis based on 16S rRNA gene sequence and phylogenomic analysis based on 808 single-copy genes revealed that the strain is affiliated to the genus Moraxella and is distinct from the recognized species of the genus. The 16S rRNA gene sequence similarity analysis indicated that the strain is most closely related to Moraxella caviae CCUG 355T with sequence similarity of 98.1%. The genomic OrthoANI and digital DNA-DNA hybridization (dDDH) values between the strain and the type strains of Moraxella species were no higher than 74.7% (Moraxella pluranimalium CCUG 54913T) and 26.0% (Moraxella oblonga NBRC 102422T), respectively. The G + C content of the complete genome sequence was 43.6 mol%. The strain contained CoQ-8 as the major respiratory quinone, and C18:1ω9c, C17:1ω8c, C16:0 and summed feature 3 (C16:1 ω7c and/ or C16:1ω6c) as the predominant fatty acids (> 5%). The major polar lipids comprised phosphatidylglycerol (PG), cardiolipin (CL), monolysocardiolipin (MLCL), phosphatidylethanolamine (PE) and lysophosphatidylglycerol (LPG). Based on these taxonomic characterizations, strain ZY201224T represents a novel species of the genus Moraxella, for which the name Moraxella nasicaprae sp. nov. is proposed. The type strain is ZY201224T (= CCTCC AB 2021474T = NBRC 115473T).
Collapse
Affiliation(s)
- Fuxiang Li
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, People's Republic of China
| | - Huafeng Gao
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, People's Republic of China
| | - Pei Zhu
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, People's Republic of China
| | - Zhanhong Li
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, People's Republic of China
| | - Wenhua Zhao
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, People's Republic of China
| | - Jianling Song
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, People's Republic of China
| | - Shibiao Yang
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, People's Republic of China.
| |
Collapse
|
4
|
He J, Jia M, Wang J, Wu Z, Shao S, He Y, Zhang X, Buttino I, Liao Z, Yan X. Mytilus farming drives higher local bacterial diversity and facilitates the accumulation of aerobic anoxygenic photoheterotrophic related genera. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:158861. [PMID: 36419274 DOI: 10.1016/j.scitotenv.2022.158861] [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: 04/28/2022] [Revised: 09/02/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Research to assess the impacts of mariculture on the microbiota of the surrounding environment is still inadequate. Here, we examined the effects of Mytilus coruscus farming on the diversity of bacterial community in surrounding seawater using field investigations and indoor simulations, focusing on the variation of members of aerobic anoxygenic photoheterotrophic (AAP) bacteria. In the field, Mytilus farming shaped bacterial community and significantly increased their diversity, including biomass, OTUs, Shannon, relative abundance, number of enriched species, as compared with the non-farming area. Higher abundance of AAP related genera was observed in the Mytilus farming seawater. Under the controlled condition, the presence of M. coruscus significantly shaped the bacterial community composition and caused species composition to become similar after 10 days. Furthermore, the presence of M. coruscus consistently strengthened local diversity in seawater bacterial community, with linkages to the recruitment of AAP members as well. In addition, the tissue-related composition of M. coruscus significantly differed from those in seawater. Our findings highlight a ecological importance of Mytilus farming, as process that shape surrounding water-cultured bacterial community and offer experimental evidence for the accumulation of AAP-related genera in aquaculture systems.
Collapse
Affiliation(s)
- Jianyu He
- Laboratory of Marine Biological Resources and Molecular Engineering, Marine Science and Technical College, Zhejiang Ocean University, Zhoushan City 316022, Zhejiang, China
| | - Mengxue Jia
- Laboratory of Marine Biological Resources and Molecular Engineering, Marine Science and Technical College, Zhejiang Ocean University, Zhoushan City 316022, Zhejiang, China
| | - Jianxin Wang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Ziqi Wu
- Laboratory of Marine Biological Resources and Molecular Engineering, Marine Science and Technical College, Zhejiang Ocean University, Zhoushan City 316022, Zhejiang, China
| | - Shuai Shao
- Laboratory of Marine Biological Resources and Molecular Engineering, Marine Science and Technical College, Zhejiang Ocean University, Zhoushan City 316022, Zhejiang, China
| | - Yutang He
- Laboratory of Marine Biological Resources and Molecular Engineering, Marine Science and Technical College, Zhejiang Ocean University, Zhoushan City 316022, Zhejiang, China
| | - Xiaolin Zhang
- Laboratory of Marine Biological Resources and Molecular Engineering, Marine Science and Technical College, Zhejiang Ocean University, Zhoushan City 316022, Zhejiang, China
| | - Isabella Buttino
- Italian Institute for Environmental Protection and Research (ISPRA), Via Vitaliano Brancati 48, 00144 Rome, Italy
| | - Zhi Liao
- Laboratory of Marine Biological Resources and Molecular Engineering, Marine Science and Technical College, Zhejiang Ocean University, Zhoushan City 316022, Zhejiang, China
| | - Xiaojun Yan
- Laboratory of Marine Biological Resources and Molecular Engineering, Marine Science and Technical College, Zhejiang Ocean University, Zhoushan City 316022, Zhejiang, China.
| |
Collapse
|
5
|
Kalkan S. Multimodal analysis of south-eastern Black Sea sediment bacterial population diversity. MARINE POLLUTION BULLETIN 2022; 183:114063. [PMID: 36057154 DOI: 10.1016/j.marpolbul.2022.114063] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 07/15/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
This study focused on marine sediments from the Black Sea, mainly due to bacterial diversity-induced public health / biotechnology application value. Sediment samples were gathered from 14 locations at differing depths across Turkish shores on a seasonal basis over 10 months, with bacterial identifications performed through using multimodal analytical platforms. Overall, 26 differing, predominantly Gram-positive (57.5 %) bacterial species were identified for this region, including Bacillaceae (50.0 %) and Pseudomonadaceae (15.0 %). The most dominant classes were identified as Bacilli (52.5 %) and Gammaproteobacteria (40.0 %). Ten isolates (25 %) to the species level and thirty-six isolates (90 %) to the genus level were identified using VITEK® MS and Bruker Microflex® LT/SH, in comparison to 16S rRNA sequencing results. Identified species - particularly, novel reported species - can contribute to the knowledge of microbial life dwelling upon sediments of the south-eastern regions of the Black Sea.
Collapse
Affiliation(s)
- Samet Kalkan
- Recep Tayyip Erdogan University, Faculty of Fisheries, Ataturk Street Fener District, 53100 Merkez, Rize, Turkey.
| |
Collapse
|
6
|
Li F, Zhu P, Li Z, Zhao W, Gao H, Hong Q, Song J, Yang S. Moraxella nasovis sp. nov., isolated from a sheep with respiratory disease. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-negative, aerobic, coccus-shaped bacteria, designated ZY201115T, was isolated from the nasal cavity of a sheep with respiratory disease in Yunnan Province, south-west China, and its taxonomic affiliation was studied by applying a polyphasic approach. The strain grew at 18–41 °C (optimum, 37 °C), at pH 6.0–9.0 (optimum, pH 8.0) and in 0.5–3.0% (w/v) NaCl (optimum, 1.0 % NaCl). Phylogenetic analysis based on 16S rRNA gene sequences showed that the strain is affiliated to the genus
Moraxella
with highest similarity to
Moraxella bovis
ATCC 10900T (96.6 %). Phylogenomic analysis based on 811 single-copy genes also indicated that the strain represents a novel species in the genus
Moraxella
and formed a deep and separated clade with
Moraxella caviae
NCTC 10293T. The highest genomic orthologous average nucleotide identity and digital DNA–DNA hybridization values between the strain and the type strains in the genus
Moraxella
were 73.7% (
M. caviae
NCTC 10293T) and 25.3% (
Moraxella osloensis
CCUG 350T), respectively. The G+C content of the complete genome sequence was 42.1 mol%. The predominant fatty acids (>5 %) were C18:1 ω9c, C17:1 ω8c, C12:03OH and summed feature 3 (C16:1 ω7c and/or C16:1 ω6c). The major polar lipids were phosphatidylglycerol, cardiolipin, monolysocardiolipin, phosphatidylethanolamine and hemibismonoacylglycerophosphate. The major respiratory quinone was CoQ-8. On the basis of the results of phylogenetic, phenotypic and chemotaxonomic characterizations, strain ZY201115T clearly represents a novel species of the genus
Moraxella
, for which the name Moraxella nasovis sp. nov. is proposed. The type strain is ZY201115T (=CCTCC AB 2021473T=CCUG 75922T).
Collapse
Affiliation(s)
- Fuxiang Li
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, PR China
| | - Pei Zhu
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, PR China
| | - Zhanhong Li
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, PR China
| | - Wenhua Zhao
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, PR China
| | - Huafeng Gao
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, PR China
| | - Qionghua Hong
- Yunnan Provincial Meat Caprine Engineering Research Center, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, PR China
| | - Jianling Song
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, PR China
| | - Shibiao Yang
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Animal Science and Veterinary Institute, Kunming, 650224, PR China
| |
Collapse
|
7
|
Braun PC, Bongo R. Inhibitory Relationships of Resident Bacteria Isolated from the Mantle Fluids of Crassostrea virginica. Can J Microbiol 2022; 68:576-582. [PMID: 35759795 DOI: 10.1139/cjm-2022-0095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Thirteen aerobic, halotolerant marine bacterial strains were isolated from the mantle fluids and associated mucus of the eastern oyster Crassostrea virginica harvested from the highly impacted Black Rock harbor in western Long Island Sound. All isolated strains were gram negative and had previously been identified using 16S RNA gene sequence analysis (Braun 2019). These thirteen strains were examined for their ability to inhibit the growth of each other employing a diffusion agar method used by antibiotic assays (DeBeer and Sherwood 1945). All challenger strains were able to inhibit at least one of the indicator isolates. Enhanced antimicrobial activity was observed from cultures of Pseudoalteromonas sp. (L), Shewanella sp. (H), Thalassospira sp. (JA) and Alteromonas sp. (JB) when used to challenge the indicator isolates. The indicator isolate most sensitive to antimicrobial activity was another Pseudoalteromonas species (KC) whose growth was inhibited by ten of the challenger strains whereas, Pseudoalteromonas (L) was resistant to all growth challenges. Growth autoinhibition was observed with isolates Tenacibaculum ascidiaceicola (KC), Vibrio (B), and Shewanella (H) during a 24-hour incubation. No antimicrobial growth inhibition was detected when 24- and 48-hour cell free extracts of these isolates were used to challenge indicator isolate growth.
Collapse
Affiliation(s)
- Phyllis C Braun
- Fairfield University, 3303, Department of Biology, Fairfield, United States;
| | - Ryan Bongo
- Fairfield University, 3303, Department of Biology, Fairfield, United States;
| |
Collapse
|
8
|
Eid HM, El-Mahallawy HS, Shalaby AM, Elsheshtawy HM, Shetewy MM, Eidaroos NH. Emergence of extensively drug-resistant Aeromonas hydrophila complex isolated from wild Mugil cephalus (striped mullet) and Mediterranean seawater. Vet World 2022; 15:55-64. [PMID: 35369605 PMCID: PMC8924385 DOI: 10.14202/vetworld.2022.55-64] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/14/2021] [Indexed: 12/23/2022] Open
Abstract
Background and Aim: Antibiotic resistance has been a progressively documented problem, resulting in treatment failure in humans and animals. This study aimed to investigate the antimicrobial susceptibility and virulence of extensively drug-resistant (XDR) Aeromonas spp. in wild Mugil cephalus and its surrounding seawater along the coastal road of Port Said, Egypt. Materials and Methods: Specimens were examined bacteriologically, confirmed biochemically, and tested for their sensitivity against 11 antimicrobial agents. Molecular confirmation of the obtained isolates by 16S rRNA was performed, followed by the detection of antimicrobial resistance and virulence genes. Results: Aeromonas spp. was recovered from fish (44%) and water samples (36%). A. hydrophila was the most prevalent identified strain, followed by Aeromonas sobria, Aeromonas caviae, and Aeromonas schubertii. Moreover, 90% of the tested isolates were multidrug-resistant (MDR), while 26.67% were XDR. Tested isolates were resistant to b-lactams and sulfonamides (100%), oxytetracycline (90%), and streptomycin (62.22%) but completely susceptible to cefotaxime. XDR isolates successfully amplified resistance genes (blaTEM , sul1, and tetA(A)) but not the (aadA1) gene, although there was phenotypic resistance to streptomycin on plates. All XDR isolates carry the cytotoxic enterotoxin gene (act), but alt gene was detected in only one isolate (12.5%). Conclusion: Data in this study provide a recent update and highlight the role of wild mullet and seawater as reservoirs for MDR and XDR Aeromonas spp. that may pose a risk to humans as food-borne infection or following direct contact.
Collapse
Affiliation(s)
- Hamza Mohamed Eid
- Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Heba Sayed El-Mahallawy
- Department of Animal Hygiene, Zoonoses, and Animal Behaviour and Management, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Amany Mahmoud Shalaby
- Department of Food Hygiene, Animal Health Research Institute, Port Said Branch, Port Said, Egypt
| | - Hassnaa Mahmoud Elsheshtawy
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | | | - Nada Hussein Eidaroos
- Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| |
Collapse
|
9
|
Boufafa M, Kadri S, Redder P, Bensouilah M. Occurrence and distribution of fecal indicators and pathogenic bacteria in seawater and Perna perna mussel in the Gulf of Annaba (Southern Mediterranean). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:46035-46052. [PMID: 33884549 DOI: 10.1007/s11356-021-13978-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
The identification of fecal contamination in coastal marine ecosystems is one of the main requirements for evaluation of potential risks to human health. The objective of this study was to investigate the occurrence and distribution of fecal indicators and pathogenic bacteria in seawaters and mussels collected monthly during a period of 1 year from four different sites in Northeastern Algeria (sites S1 to S4), through biochemical and molecular analyses. Our research is the first to use molecular analysis to unambiguously identify the potentially pathogenic bacteria present in Algerian Perna perna mussels. The obtained results revealed that the levels of fecal indicator bacteria (FIB) from both P. perna and seawater samples largely exceeded the permissible limits at S2 and S3. This is mainly related to their location close to industrial and coastal activity zones, which contain a mixture of urban, agricultural, and industrial pollutants. Besides, P. perna collected from all sites were severalfold more contaminated by FIB than seawater samples, primarily during the warm season of the study period. Biochemical and molecular analyses showed that isolated bacteria from both seawater and mussels were mainly potentially pathogenic species such as E. coli, Salmonella spp., Staphylococcus spp., Klebsiella spp., Pseudomonas spp., and Proteus spp.
Collapse
Affiliation(s)
- Mouna Boufafa
- Laboratory of Eco-biology for Marine Environment and Coastlines, Faculty of Science, Badji Moukhtar University, BP 12, 23000, Annaba, Algeria.
| | - Skander Kadri
- Laboratory of Eco-biology for Marine Environment and Coastlines, Faculty of Science, Badji Moukhtar University, BP 12, 23000, Annaba, Algeria
| | - Peter Redder
- Laboratoire de Microbiologie et Génétique Moléculaires, Centre de Biologie Intégrative, Université Paul Sabatier, 118 Route de Narbonne, 31062, Toulouse, France.
| | - Mourad Bensouilah
- Laboratory of Eco-biology for Marine Environment and Coastlines, Faculty of Science, Badji Moukhtar University, BP 12, 23000, Annaba, Algeria
| |
Collapse
|
10
|
Nowlan JP, Britney SR, Lumsden JS, Russell S. Application of Quantitative-PCR to Monitor Netpen Sites in British Columbia (Canada) for Tenacibaculum Species. Pathogens 2021; 10:pathogens10040414. [PMID: 33915806 PMCID: PMC8066307 DOI: 10.3390/pathogens10040414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 03/23/2021] [Accepted: 03/30/2021] [Indexed: 12/31/2022] Open
Abstract
Tenacibaculum are frequently detected from fish with tenacibaculosis at aquaculture sites; however, information on the ecology of these bacteria is sparse. Quantitative-PCR assays were used to detect T. maritimum and T. dicentrarchi at commercial Atlantic salmon (Salmo salar) netpen sites throughout several tenacibaculosis outbreaks. T. dicentrarchi and T. maritimum were identified in live fish, dead fish, other organisms associated with netpens, water samples and on inanimate substrates, which indicates a ubiquitous distribution around stocked netpen sites. Before an outbreak, T. dicentrarchi was found throughout the environment and from fish, and T. maritimum was infrequently identified. During an outbreak, increases in the bacterial load in were recorded and no differences were recorded after an outbreak supporting the observed recrudescence of mouthrot. More bacteria were recorded in the summer months, with more mortality events and antibiotic treatments, indicating that seasonality may influence tenacibaculosis; however, outbreaks occurred in both seasons. Relationships were identified between fish mortalities and antimicrobial use to water quality parameters (temperature, salinity, dissolved oxygen) (p < 0.05), but with low R2 values (<0.25), other variables are also involved. Furthermore, Tenacibaculum species appear to have a ubiquitous spatial and temporal distribution around stocked netpen sites, and with the potential to induce disease in Atlantic salmon, continued research is needed.
Collapse
Affiliation(s)
- Joseph P. Nowlan
- Center of Innovation for Fish Health, Vancouver Island University, Nanaimo, BC V9R 5S5, Canada; (S.R.B.); (S.R.)
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada;
- Correspondence:
| | - Scott R. Britney
- Center of Innovation for Fish Health, Vancouver Island University, Nanaimo, BC V9R 5S5, Canada; (S.R.B.); (S.R.)
| | - John S. Lumsden
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Spencer Russell
- Center of Innovation for Fish Health, Vancouver Island University, Nanaimo, BC V9R 5S5, Canada; (S.R.B.); (S.R.)
| |
Collapse
|
11
|
López Cabo M, Romalde JL, Simal-Gandara J, Gago Martínez A, Giráldez Fernández J, Bernárdez Costas M, Pascual del Hierro S, Pousa Ortega Á, Manaia CM, Abreu Silva J, Rodríguez Herrera J. Identification of Emerging Hazards in Mussels by the Galician Emerging Food Safety Risks Network (RISEGAL). A First Approach. Foods 2020; 9:E1641. [PMID: 33182842 PMCID: PMC7697966 DOI: 10.3390/foods9111641] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/28/2020] [Accepted: 10/30/2020] [Indexed: 01/04/2023] Open
Abstract
Emerging risk identification is a priority for the European Food Safety Authority (EFSA). The goal of the Galician Emerging Food Safety Risks Network (RISEGAL) is the identification of emerging risks in foods produced and commercialized in Galicia (northwest Spain) in order to propose prevention plans and mitigation strategies. In this work, RISEGAL applied a systematic approach for the identification of emerging food safety risks potentially affecting bivalve shellfish. First, a comprehensive review of scientific databases was carried out to identify hazards most quoted as emerging in bivalves in the period 2016-2018. Then, identified hazards were semiquantitatively assessed by a panel of food safety experts, who scored them accordingly with the five evaluation criteria proposed by EFSA: novelty, soundness, imminence, scale, and severity. Scores determined that perfluorinated compounds, antimicrobial resistance, Vibrio parahaemolyticus, hepatitis E virus (HEV), and antimicrobial residues are the emerging hazards that are considered most imminent and severe and that could cause safety problems of the highest scale in the bivalve value chain by the majority of the experts consulted (75%). Finally, in a preliminary way, an exploratory study carried out in the Galician Rías highlighted the presence of HEV in mussels cultivated in class B production areas.
Collapse
Affiliation(s)
- Marta López Cabo
- Seafood Microbiology and Technology Section, Instituto de Investigacións Mariñas, Spanish National Research Council (CSIC), 36208 Vigo, Spain; (M.B.C.); (S.P.d.H.); (J.R.H.)
| | - Jesús L. Romalde
- Department of Microbiology and Parasitology, CIBUS-Faculty of Biology & Institute CRETUS, Universidade de Santiago de Compostela, E15782 Santiago de Compostela, Spain;
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, Universidade de Vigo–Ourense Campus, E32004 Ourense, Spain;
| | - Ana Gago Martínez
- Department Analytical and Food Chemistry, Universidade de Vigo, 36310 Vigo, Spain; (A.G.M.); (J.G.F.)
| | - Jorge Giráldez Fernández
- Department Analytical and Food Chemistry, Universidade de Vigo, 36310 Vigo, Spain; (A.G.M.); (J.G.F.)
| | - Marta Bernárdez Costas
- Seafood Microbiology and Technology Section, Instituto de Investigacións Mariñas, Spanish National Research Council (CSIC), 36208 Vigo, Spain; (M.B.C.); (S.P.d.H.); (J.R.H.)
| | - Santiago Pascual del Hierro
- Seafood Microbiology and Technology Section, Instituto de Investigacións Mariñas, Spanish National Research Council (CSIC), 36208 Vigo, Spain; (M.B.C.); (S.P.d.H.); (J.R.H.)
| | - Ánxela Pousa Ortega
- Direccion Xeral de Innovación e Xestión da Saúde Pública, Consellería de Sanidade, Xunta de Galicia, 15781 Santiago de Compostela, Spain;
| | - Célia M. Manaia
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Universidade Católica Portuguesa, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (C.M.M.); (J.A.S.)
| | - Joana Abreu Silva
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Universidade Católica Portuguesa, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (C.M.M.); (J.A.S.)
| | - Juan Rodríguez Herrera
- Seafood Microbiology and Technology Section, Instituto de Investigacións Mariñas, Spanish National Research Council (CSIC), 36208 Vigo, Spain; (M.B.C.); (S.P.d.H.); (J.R.H.)
| |
Collapse
|
12
|
The effects of atrazine on the microbiome of the eastern oyster: Crassostrea virginica. Sci Rep 2020; 10:11088. [PMID: 32632188 PMCID: PMC7338443 DOI: 10.1038/s41598-020-67851-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/26/2020] [Indexed: 12/11/2022] Open
Abstract
Long-standing evidence supports the importance of maintaining healthy populations of microbiota for the survival, homeostasis, and complete development of marine mollusks. However, the long-term ecological effects of agricultural runoff on these populations remains largely unknown. Atrazine (6-Chloro-n-ethyl-n'-(1-methylethyl)-triazine-2,4-diamine), a prevalent herbicide in the United States, is often used along tributaries of the Chesapeake Bay where oyster breeding programs are concentrated. To investigate any potential effects atrazine maybe having on mollusk-prokaryote interactions, we used 16S rRNA gene amplicons to evaluate how microbial compositions shift in response to exposure of environmentally relevant concentrations of atrazine previously found within the Chesapeake Bay. The dominant bacterial genera found within all groups included those belonging to Pseudoalteromonas, Burkholderia, Bacteroides, Lactobacillis, Acetobacter, Allobaculum, Ruminococcus, and Nocardia. Our results support previously published findings of a possible core microbial community in Crassostrea virginica. We also report a novel finding: oysters exposed to atrazine concentrations as low as 3 µg/L saw a significant loss of a key mutualistic microbial species and a subsequent colonization of a pathogenic bacteria Nocardia. We conclude that exposure to atrazine in the Chesapeake Bay may be contributing to a significant shift in the microbiomes of juvenile oysters that reduces fitness and impedes natural and artificial repopulation of the oyster species within the Bay.
Collapse
|
13
|
Gut Microbiomes of the Eastern Oyster ( Crassostrea virginica) and the Blue Mussel ( Mytilus edulis): Temporal Variation and the Influence of Marine Aggregate-Associated Microbial Communities. mSphere 2019; 4:4/6/e00730-19. [PMID: 31826972 PMCID: PMC6908423 DOI: 10.1128/msphere.00730-19] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
This work investigates the influence that extrinsic factors, diet, and the environment can have on the microbiomes of shellfish. Over the course of a year, the gut microbial communities of two species of bivalves, oysters and mussels, held under identical conditions in coastal marine waters were compared. While the mussels and oysters harbored gut microbial communities with similar composition, on a functional level, they exhibited species and temporal variation. These results indicate that intrinsic factors influence the bivalve microbiome, resulting in species variability, even when environmental conditions, feeding mechanism, and particle diet are constant. Seasonal and multispecies comparisons for bivalve-associated microbial communities are rare, and we believe this research represents an important contribution. The results presented here advance our understanding of the symbiotic interactions between marine invertebrates, the microbial communities they harbor, and the environment. Gut microbial community structure was evaluated for two species of bivalve molluscs, the eastern oyster (Crassostrea virginica) and the blue mussel (Mytilus edulis) collected from Long Island Sound, Connecticut, over the course of a year. These bivalves utilize a shared feeding mechanism, which may result in similar gut microbial communities. Their particle diet, marine aggregates, and surrounding environment, aggregate-free seawater (AFSW), were also collected for comparison. Due to the suspension-feeding activities of bivalves, the potential for aggregate- and AFSW-associated microbiota to influence their microbial communities may be significant. Both taxonomic and functional diversity of the samples were assessed. 16S rRNA gene amplicon sequencing indicated that oysters and mussels maintained similar, but not identical, gut microbiomes, with some temporal variation. Throughout the year, bivalve species had gut microbial community compositions that were more similar to one another than to aggregates. Within a month, bivalves shared on average a quarter of their total operational taxonomic units (OTUs) with each other and a 10th of their total OTUs with aggregates. During months with warm water temperatures, individuals within each of the four sample types had similar alpha diversity, but again, temporal variation was observed. On a functional level, bivalve gut microbial communities exhibited variation attributed to host species and season. Unlike oysters, mussel gut bacterial communities maintained high richness and evenness values throughout the year, even when values for the particle diet and AFSW were reduced. Overall, a core gut bivalve microbiome was present, and it was partially influenced by the marine aggregate microbial community. IMPORTANCE This work investigates the influence that extrinsic factors, diet, and the environment can have on the microbiomes of shellfish. Over the course of a year, the gut microbial communities of two species of bivalves, oysters and mussels, held under identical conditions in coastal marine waters were compared. While the mussels and oysters harbored gut microbial communities with similar composition, on a functional level, they exhibited species and temporal variation. These results indicate that intrinsic factors influence the bivalve microbiome, resulting in species variability, even when environmental conditions, feeding mechanism, and particle diet are constant. Seasonal and multispecies comparisons for bivalve-associated microbial communities are rare, and we believe this research represents an important contribution. The results presented here advance our understanding of the symbiotic interactions between marine invertebrates, the microbial communities they harbor, and the environment.
Collapse
|
14
|
Brailo M, Schreier HJ, McDonald R, Maršić-Lučić J, Gavrilović A, Pećarević M, Jug-Dujaković J. Bacterial community analysis of marine recirculating aquaculture system bioreactors for complete nitrogen removal established from a commercial inoculum. AQUACULTURE (AMSTERDAM, NETHERLANDS) 2019; 503:198-206. [PMID: 30778266 PMCID: PMC6376983 DOI: 10.1016/j.aquaculture.2018.12.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
An experimental recirculating aquaculture system was constructed under ambient seawater conditions to compare microbial community diversity of nitrifying and denitrifying biofilters that were derived from a commercial inoculum used for aquarium applications. Next generation sequencing revealed distinct and diverse microbial communities in samples analyzed from the commercial inoculant and the denitrification and nitrification biofilters. In all samples, communities were represented by a few dominant operational taxonomic units (OTUs). Bacteria having the capacity to carry out ammonia and nitrite oxidation were more abundant in the nitrification biofilter. Similarly, the proportion of the bacterial taxa known to carry out heterotrophic and autotrophic denitrification and participate in sulfur cycling were found in the denitrification bioreactor, and likely originated from the ambient environmental water source. Our results indicated that environmental seawater can be a favorable enhancement to the bacterial consortium of recirculating aquaculture systems biofilters.
Collapse
Affiliation(s)
- Marina Brailo
- Department of Aquaculture, University of Dubrovnik, Ćira Carića 4, Dubrovnik 20000, Croatia
| | - Harold J. Schreier
- Department of Marine Biotechnology, Institute of Marine and Environmental Technology, University of Maryland Baltimore County, 701 E. Pratt St., Baltimore, MD 21202, USA
- Department of Biological Sciences, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
| | - Ryan McDonald
- Department of Biological Sciences, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
| | - Jasna Maršić-Lučić
- Institute of Oceanography and Fisheries, PO Box 500, Šetalište Ivana Meštrovića 63, Split 21000, Croatia
| | - Ana Gavrilović
- Department of Fisheries, Beekeeping, Game Management and Special Zoology, University of Zagreb Faculty of Agriculture, Svetošimunska cesta 25, Zagreb 10000, Croatia
| | - Marijana Pećarević
- Department of Aquaculture, University of Dubrovnik, Ćira Carića 4, Dubrovnik 20000, Croatia
| | - Jurica Jug-Dujaković
- Sustainable Aquaculture Systems Inc., 715 Pittstown Road, Frenchtown, NJ 08825, USA
| |
Collapse
|
15
|
Utermann C, Parrot D, Breusing C, Stuckas H, Staufenberger T, Blümel M, Labes A, Tasdemir D. Combined genotyping, microbial diversity and metabolite profiling studies on farmed Mytilus spp. from Kiel Fjord. Sci Rep 2018; 8:7983. [PMID: 29789708 PMCID: PMC5964093 DOI: 10.1038/s41598-018-26177-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 04/30/2018] [Indexed: 12/14/2022] Open
Abstract
The blue mussel Mytilus is a popular food source with high economical value. Species of the M. edulis complex (M. edulis, M. galloprovincialis and M. trossulus) hybridise whenever their geographic ranges overlap posing difficulties to species discrimination, which is important for blue mussel aquaculture. The aim of this study was to determine the genetic structure of farmed blue mussels in Kiel Fjord. Microbial and metabolic profile patterns were studied to investigate a possible dependency on the genotype of the bivalves. Genotyping confirmed the complex genetic structure of the Baltic Sea hybrid zone and revealed an unexpected dominance of M. trossulus alleles being in contrast to the predominance of M. edulis alleles described for wild Baltic blue mussels. Culture-dependent and -independent microbial community analyses indicated the presence of a diverse Mytilus-associated microbiota, while an LC-MS/MS-based metabolome study identified 76 major compounds dominated by pigments, alkaloids and polyketides in the whole tissue extracts. Analysis of mussel microbiota and metabolome did not indicate genotypic dependence, but demonstrated high intraspecific variability of farmed mussel individuals. We hypothesise that individual differences in microbial and metabolite patterns may be caused by high individual plasticity and might be enhanced by e.g. nutritional condition, age and gender.
Collapse
Affiliation(s)
- Caroline Utermann
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106, Kiel, Germany
| | - Delphine Parrot
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106, Kiel, Germany
| | - Corinna Breusing
- Research Unit Evolutionary Ecology of Marine Fishes, GEOMAR Helmholtz Centre for Ocean Research Kiel, Duesternbrooker Weg 20, 24105, Kiel, Germany.,Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, California, 95039, USA
| | - Heiko Stuckas
- Senckenberg Natural History Collection Dresden, Population Genetics, Koenigsbruecker Landstrasse 159, 01109, Dresden, Germany
| | | | - Martina Blümel
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106, Kiel, Germany
| | - Antje Labes
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106, Kiel, Germany.,Flensburg University of Applied Sciences, Kanzleistrasse 91-93, 24943, Flensburg, Germany
| | - Deniz Tasdemir
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Products Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106, Kiel, Germany. .,Kiel University, Christian-Albrechts-Platz 4, 24118, Kiel, Germany.
| |
Collapse
|
16
|
Wiese J, Abdelmohsen UR, Motiei A, Humeida UH, Imhoff JF. Bacicyclin, a new antibacterial cyclic hexapeptide from Bacillus sp. strain BC028 isolated from Mytilus edulis. Bioorg Med Chem Lett 2018; 28:558-561. [PMID: 29422389 DOI: 10.1016/j.bmcl.2018.01.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/25/2022]
Abstract
A new cyclic hexapeptide, cyclo-(Gly-Leu-Val-IIe-Ala-Phe), named bacicyclin (1), was isolated from a marine Bacillus sp. strain associated with Mytilus edulis. The sequences of the amino acid building blocks of the cyclic peptide and its structure were determined by 1D- and 2D-NMR techniques. Marfey's analysis showed that the amino acid building blocks had L-configuration in all cases except for alanine and phenylalanine, which had D-configuration. Bacicyclin (1) exhibited antibacterial activity against the clinically relevant strains Enterococcus faecalis and Staphylococcus aureus with minimal inhibitory concentration values of 8 and 12 µM, respectively. These results demonstrate the potential of marine bacteria as a promising source for the discovery of new antibiotics.
Collapse
Affiliation(s)
- Jutta Wiese
- GEOMAR Helmholtz Centre for Ocean Research Kiel, RD3 Marine Microbiology, Düsternbrooker Weg 20, 24105 Kiel, Germany.
| | | | - Asa Motiei
- GEOMAR Helmholtz Centre for Ocean Research Kiel, RD3 Marine Microbiology, Düsternbrooker Weg 20, 24105 Kiel, Germany; Stockholm University, Department of Environmental Science and Analytical Chemistry, (ACES), 10691 Stockholm, Sweden
| | - Ute Hentschel Humeida
- GEOMAR Helmholtz Centre for Ocean Research Kiel, RD3 Marine Microbiology, Düsternbrooker Weg 20, 24105 Kiel, Germany; Christian-Albrechts University of Kiel, 24118 Kiel, Germany
| | - Johannes F Imhoff
- GEOMAR Helmholtz Centre for Ocean Research Kiel, RD3 Marine Microbiology, Düsternbrooker Weg 20, 24105 Kiel, Germany; Christian-Albrechts University of Kiel, 24118 Kiel, Germany
| |
Collapse
|
17
|
Stabili L, Licciano M, Gravina MF, Giangrande A. Filtering activity on a pure culture of Vibrio alginolyticus by the solitary ascidian Styela plicata and the colonial ascidian Polyandrocarpa zorritensis: a potential service to improve microbiological seawater quality economically. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 573:11-18. [PMID: 27552728 DOI: 10.1016/j.scitotenv.2016.07.216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 07/29/2016] [Accepted: 07/30/2016] [Indexed: 06/06/2023]
Abstract
We investigated and compared, by laboratory experiments, the filter-feeding activity on bacteria by the solitary ascidian Styela plicata and the colonial ascidian Polyandrocarpa zorritensis. Clearance rates and retention efficiencies were estimated by using, as only food source, the bacterial species Vibrio alginolyticus selected on account of its importance in aquaculture pathogenicity. The Cmax was 1.4±0.17Lh-1g-1 DW for S. plicata and 1.745Lh-1g-1 DW for P. zorritensis. The highest retention efficiency was 41% corresponding to a removed bacterial biomass of 16.34+1.71 μgCL-1g-1 DW for P. zorritensis and 81% corresponding to a bacterial biomass of 32.28+2.15 μgCL-1g-1 DW for S. plicata. Styela plicata resulted higher efficient than P. zorritensis in removing V. alginolyticus from seawater in experimental tanks, thus representing a more suitable biofilter to restore the quality of microbiologically contaminated waters including those where aquaculture is practiced. Present laboratory experiments represent the first contribution to the comparison of the filtration activity of the two ascidians, as well as to characterize the filtration process on bacterioplankton and pone the basis for future field works aimed to restore bacteriological polluted seawater.
Collapse
Affiliation(s)
- Loredana Stabili
- Istituto per l'Ambiente Marino Costiero - Sezione di Taranto - CNR, Via Roma 3, 74100-Taranto, Italy; Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (Di.S.Te.B.A.), Università del Salento, Via Prov. Lecce-Monteroni, 73100-Lecce, Italy.
| | - Margherita Licciano
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (Di.S.Te.B.A.), Università del Salento, Via Prov. Lecce-Monteroni, 73100-Lecce, Italy.
| | - Maria Flavia Gravina
- Dipartimento di Biologia, Università degli Studi di Roma "Tor Vergata", Via della Ricerca Scientifica snc 00133, Roma.
| | - Adriana Giangrande
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (Di.S.Te.B.A.), Università del Salento, Via Prov. Lecce-Monteroni, 73100-Lecce, Italy.
| |
Collapse
|
18
|
Bayat Z, Hassanshahian M, Hesni MA. Study the symbiotic crude oil-degrading bacteria in the mussel Mactra stultorum collected from the Persian Gulf. MARINE POLLUTION BULLETIN 2016; 105:120-4. [PMID: 26922360 DOI: 10.1016/j.marpolbul.2016.02.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 01/31/2016] [Accepted: 02/04/2016] [Indexed: 05/15/2023]
Abstract
Symbiotic associations are complex partnerships that can lead to new metabolic capabilities and the establishment of novel organisms. The diversity of these associations is very broad and there are still many mysteries about the origin and the exact relationship between the organisms that are involved in a symbiosis. The aim of the present study is to find symbiotic crude-oil degrading bacteria in the mussels that collected from the Persian Gulf. Fifteen crude-oil degrading bacteria were isolated from Mactra stultorum mussel that collected from oil contaminated area at Persian Gulf. According to high growth rate on crude oil five strains were selected from 15 isolated strains for more study. Determination of the nucleotide sequence of the gene encoding 16S rRNA show that these isolated strains belong to: Alcanivorax dieselolei strain BHA25, Idiomarina baltica strain BHA28, A. dieselolei strain BHA30, Alcanivorax sp. strain BHA32 and Vibrio azureus strain BHA36. Analysis of remaining of crude oil by Gas Chromatography (GC) confirmed that these strains can degrade: 64%, 63%, 71%, 58% and 75% of crude oil respectively.
Collapse
Affiliation(s)
- Zeynab Bayat
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mehdi Hassanshahian
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Majid Askari Hesni
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| |
Collapse
|
19
|
Bogatyrenko EA, Buzoleva LS. Characterization of the gut bacterial community of the Japanese sea cucumber Apostichopus japonicus. Microbiology (Reading) 2016. [DOI: 10.1134/s0026261716010033] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
20
|
Bayat Z, Hassanshahian M, Hesni MA. Enrichment and isolation of crude oil degrading bacteria from some mussels collected from the Persian Gulf. MARINE POLLUTION BULLETIN 2015; 101:85-91. [PMID: 26581816 DOI: 10.1016/j.marpolbul.2015.11.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 05/15/2023]
Abstract
To date, little is known about existing relationships between mussels and bacteria in hydrocarbon-contaminated marine environments. The aim of this study is to find crude oil degrading bacteria in some mussels at the Persian Gulf. Twenty eight crude oil degrading bacteria were isolated from three mussels species collected from oil contaminated area at Persian Gulf. According to high growth and degradation of crude oil four strains were selected between 28 isolated strains for more study. Determination the nucleotide sequence of the gene encoding for 16S rRNA show that these isolated strains belong to: Shewanella algae isolate BHA1, Micrococcus luteus isolate BHA7, Pseudoalteromonas sp. isolate BHA8 and Shewanella haliotis isolate BHA35. The residual crude oil in culture medium was analysis by Gas Chromatography (GC). The results confirmed that these strains can degrade: 47.24%, 66.08%, 27.13% and 69.17% of crude oil respectively. These strains had high emulsification activity and biosurfactant production. Also, the effects of some factors on crude oil degradation by isolated strains were studied. The results show that the optimum concentration of crude oil was 2.5% and the best degradation take place at 12% of salinity. This research is the first reports on characterization of crude oil degrading bacteria from mussels at Persian Gulf and by using of these bacteria in the field the effect of oil pollution can be reduce on this marine environment.
Collapse
Affiliation(s)
- Zeynab Bayat
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mehdi Hassanshahian
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Majid Askari Hesni
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| |
Collapse
|
21
|
Réveillon D, Séchet V, Hess P, Amzil Z. Systematic detection of BMAA (β-N-methylamino-l-alanine) and DAB (2,4-diaminobutyric acid) in mollusks collected in shellfish production areas along the French coasts. Toxicon 2015; 110:35-46. [PMID: 26615827 DOI: 10.1016/j.toxicon.2015.11.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/09/2015] [Accepted: 11/18/2015] [Indexed: 12/12/2022]
Abstract
The neurotoxin β-N-methylamino-l-alanine (BMAA) is naturally present in some microalgal species in the marine environment. The accumulation of BMAA has widely been observed in filter-feeding bivalves that are known to consume primary producers constituting the base of complex aquatic food webs. This study was performed to assess the occurrence of BMAA and isomers in mollusks collected from nine representative shellfish production areas located on the three French coasts (Channel, Atlantic and Mediterranean sites). The use of a highly selective and sensitive HILIC-MS/MS method, with D5DAB as internal standard, revealed the systematic detection of BMAA and DAB, in concentrations ranging from 0.20 to 6.7 μg g(-1) dry weight of digestive gland tissues of mollusks. While we detected BMAA in four strains of diatoms in a previous study, here BMAA was only detected in one diatom species previously not investigated out of the 23 microalgal species examined (belonging to seven classes). The concentrations of BMAA and DAB in mussels and oysters were similar at different sampling locations and despite the high diversity of phytoplankton populations that mollusks feed on at these locations. Only small variations of BMAA and DAB levels were observed and these were not correlated to any of the phytoplankton species reported. Therefore, extensive research should be performed on both origin and metabolism of BMAA in shellfish. The levels observed in this study are similar to those found in other studies in France or elsewhere. A previous study had related such levels to a cluster of Amyotrophic Lateral Sclerosis in the South of France; hence the widespread occurrence of BMAA in shellfish from all coasts in France found in this study suggests the need for further epidemiological and toxicological studies to establish the levels that are relevant for a link between the consumption of BMAA-containing foodstuffs and neurodegenerative diseases.
Collapse
Affiliation(s)
- Damien Réveillon
- Ifremer, Laboratoire Phycotoxines, rue de l'Ile d'Yeu, BP 21105, F-44311 Nantes, France.
| | - Véronique Séchet
- Ifremer, Laboratoire Phycotoxines, rue de l'Ile d'Yeu, BP 21105, F-44311 Nantes, France
| | - Philipp Hess
- Ifremer, Laboratoire Phycotoxines, rue de l'Ile d'Yeu, BP 21105, F-44311 Nantes, France
| | - Zouher Amzil
- Ifremer, Laboratoire Phycotoxines, rue de l'Ile d'Yeu, BP 21105, F-44311 Nantes, France
| |
Collapse
|
22
|
Réveillon D, Abadie E, Séchet V, Masseret E, Hess P, Amzil Z. β-N-methylamino-l-alanine (BMAA) and isomers: Distribution in different food web compartments of Thau lagoon, French Mediterranean Sea. MARINE ENVIRONMENTAL RESEARCH 2015; 110:8-18. [PMID: 26254582 DOI: 10.1016/j.marenvres.2015.07.015] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 07/21/2015] [Accepted: 07/27/2015] [Indexed: 05/03/2023]
Abstract
The neurotoxin BMAA (β-N-methylamino-l-alanine) and its isomer DAB (2,4-diaminobutyric acid) have been detected in seafood worldwide, including in Thau lagoon (French Mediterranean Sea). A cluster of amyotrophic lateral sclerosis (ALS), a neurodegenerative disease associated with BMAA, has also been observed in this region. Mussels, periphyton (i.e. biofilms attached to mussels) and plankton were sampled between July 2013 and October 2014, and analyzed using HILIC-MS/MS. BMAA, DAB and AEG (N-(2-aminoethyl)glycine) were found in almost all the samples of the lagoon. BMAA and DAB were present at 0.58 and 0.83, 2.6 and 3.3, 4.0 and 7.2 μg g(-1) dry weight in plankton collected with nets, periphyton and mussels, respectively. Synechococcus sp., Ostreococcus tauri, Alexandrium catenella and eight species of diatoms were cultured and screened for BMAA and analogs. While Synechococcus sp., O. tauri and A. catenella did not produce BMAA under our culture conditions, four diatoms species contained both BMAA and DAB. Hence, diatoms may be a source of BMAA for mussels. Unlike other toxins produced by microalgae, BMAA and DAB were detected in significant amounts in tissues other than digestive glands in mussels.
Collapse
Affiliation(s)
- Damien Réveillon
- Ifremer, Laboratoire Phycotoxines, Rue de l'Ile d'Yeu, BP 21105, F-44311, Nantes, France.
| | - Eric Abadie
- Ifremer, Laboratoire Environnement Ressources Languedoc-Roussillon, UMR MARBEC (IRD - Ifremer - Univ. Montpellier - CNRS), Avenue Jean Monnet, CS30171 Sète, Cedex 3, France
| | - Véronique Séchet
- Ifremer, Laboratoire Phycotoxines, Rue de l'Ile d'Yeu, BP 21105, F-44311, Nantes, France
| | - Estelle Masseret
- Université de Montpellier, UMR MARBEC (IRD - Ifremer - Univ. Montpellier - CNRS), cc93, Place Eugène Bataillon, 34095, Montpellier, Cedex 5, France
| | - Philipp Hess
- Ifremer, Laboratoire Phycotoxines, Rue de l'Ile d'Yeu, BP 21105, F-44311, Nantes, France
| | - Zouher Amzil
- Ifremer, Laboratoire Phycotoxines, Rue de l'Ile d'Yeu, BP 21105, F-44311, Nantes, France
| |
Collapse
|
23
|
Transfer of multidrug-resistant bacteria between intermingled ecological niches: the interface between humans, animals and the environment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2013; 10:278-94. [PMID: 23343983 PMCID: PMC3564142 DOI: 10.3390/ijerph10010278] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 12/31/2012] [Accepted: 01/09/2013] [Indexed: 12/14/2022]
Abstract
The use of antimicrobial agents has been claimed to be the driving force for the emergence and spread of microbial resistance. However, several studies have reported the presence of multidrug-resistant bacteria in populations exposed to low levels of antimicrobial drugs or even never exposed. For many pathogens, especially those organisms for which asymptomatic colonization typically precedes infection (e.g., Enterococcus spp. and Escherichia coli), the selective effects of antimicrobial use can only be understood if we considerer all biological and environmental pathways which enable these bacteria, and the genes they carry, to spread between different biomes. This ecological framework provides an essential perspective for formulating antimicrobial use policies, precisely because it encompasses the root causes of these problems rather than merely their consequences.
Collapse
|
24
|
Yu CP, Chu KH. Molecular quantification of virulence gene-containing Aeromonas in water samples collected from different drinking water treatment processes. ENVIRONMENTAL MONITORING AND ASSESSMENT 2011; 176:225-238. [PMID: 20632090 DOI: 10.1007/s10661-010-1578-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2009] [Accepted: 06/15/2010] [Indexed: 05/29/2023]
Abstract
Pathogenic species of Aeromonas produce a range of virulence factors, including aerolysin, cytotonic enterotoxins, and serine protease, to cause acute gastroenteritis and wound infections in humans and animals. Recognizing that not all Aeromonas strains are pathogenic, in this study, we proposed to evaluate Aeromonas removal effectiveness based on the presence of virulence gene-containing Aeromonas as a proper means to assess microbial risk of Aeromonas. We developed and applied real-time PCR assays to quantify serine protease (ser) gene- and heat-labile cytotonic enterotoxin (alt) gene-containing Aeromonas in water samples. Among 18 Aeromonas isolates from the source water, only three isolates possessed all three genes (aer, ser, and alt). A higher percent of isolates has either ser gene (89%) or alt gene (72%) compared to the percent of isolates containing aer gene (44%). Results of this study suggested that several different conventional and unconventional drinking water treatment processes could effectively remove Aeromonas from source water. As the comprehensive knowledge of the distribution of virulence factors in different Aeromonas species is currently not available, using real-time PCR to quantify various virulence factor genes in water samples and/or isolates can be a practical means for better assessment of microbial risks in water.
Collapse
Affiliation(s)
- Chang-Ping Yu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | | |
Collapse
|
25
|
Kumar PTK, Vinod PT, Phoha VV, Iyengar SS, Iyengar P. Design of a smart biomarker for bioremediation: a machine learning approach. Comput Biol Med 2011; 41:357-60. [PMID: 21524740 DOI: 10.1016/j.compbiomed.2011.03.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Revised: 01/11/2011] [Accepted: 03/25/2011] [Indexed: 11/16/2022]
Abstract
Many trace elements (TE) occur naturally in marine environments and accomplish decisive functions in humans to maintain good health. Mytilus galloprovincialis (MG) is a rich source of TE, but since it is grown near industrial outfalls, they become polluted with elevated levels of TE concentration and serve as biomarkers of pollution. As bioremediation is increasingly reliant on machine learning data processing techniques, we propose the information theoretic concept of using MG for bioremediation. The in situ bioremediation in MG is accomplished by reduction in concentration of TE by the technique of determinant inequalities and the maximization of Mutual Information (MI) without adding any chemical element externally. We bring out the superiority of our technique of MI over that of Principal Component Analysis (PCA) in predicting lower concentration for bioremediation of Cd and Pb in MG.
Collapse
Affiliation(s)
- P T Krishna Kumar
- Room No.: 114, Central Design Office, Indira Gandhi Centre for Atomic Research, Kalpakkam-603102, Tamilnadu, India.
| | | | | | | | | |
Collapse
|
26
|
Casas SM, Comesaña P, Cao A, Villalba A. Comparison of antibacterial activity in the hemolymph of marine bivalves from Galicia (NW Spain). J Invertebr Pathol 2011; 106:343-5. [DOI: 10.1016/j.jip.2010.11.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 11/20/2010] [Accepted: 11/27/2010] [Indexed: 11/28/2022]
|
27
|
Antunes F, Hinzmann M, Lopes-Lima M, Machado J, Martins da Costa P. Association between environmental microbiota and indigenous bacteria found in hemolymph, extrapallial fluid and mucus of Anodonta cygnea (Linnaeus, 1758). MICROBIAL ECOLOGY 2010; 60:304-309. [PMID: 20349058 DOI: 10.1007/s00248-010-9649-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Accepted: 02/17/2010] [Indexed: 05/29/2023]
Abstract
Bivalves filter and accumulate large numbers of microorganisms present in the harvesting water. A complete understanding of the balance between Anodonta cygnea and the microbiota present in their surrounding environment remains incomplete. Therefore, the aim of this study was to quantify and identify the indigenous bacteria in the biological fluids of A. cygnea collected from Mira Lagoon in northern Portugal. The results showed Vibrio metschnikovii and Aeromonas sobria as the dominant groups. The median for total bacteria from mucus was 3.1 × 10(3) CFU g(-1), whereas the range in means from fluids was 1.5 × 10(2) to 6.5 × 10(2) CFU ml(-1). During the experimental work, Escherichia coli and enterococci were not detected in healthy A. cygnea. However, the periodic detection of E. coli and enterococci in Mira lagoon revealed its presence in the water. Our observations suggest that A. cygnea has the ability to filter and eliminate E. coli, present in the surrounding environment, through an active phagocytic process conducted by hemolymph circulating cells, the hemocytes.
Collapse
Affiliation(s)
- Filipa Antunes
- ICBAS-Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Largo Professor Abel Salazar, 2, 4099-003 Porto, Portugal
| | | | | | | | | |
Collapse
|
28
|
Deter J, Lozach S, Derrien A, Véron A, Chollet J, Hervio-Heath D. Chlorophyll a might structure a community of potentially pathogenic culturable Vibrionaceae. Insights from a one-year study of water and mussels surveyed on the French Atlantic coast. ENVIRONMENTAL MICROBIOLOGY REPORTS 2010; 2:185-191. [PMID: 23766015 DOI: 10.1111/j.1758-2229.2010.00133.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The present study focused on the isolation of culturable bacteria from mussels and sea water to identify Vibrionaceae potentially pathogenic for humans. Three sites located on the French Atlantic coast were monitored monthly (twice each month during summer) for 1 year. Environmental parameters were surveyed (water temperature, salinity, turbidity, chlorophyll a) and bacteria were detected by culture and identified by API 20E(®) systems (BioMérieux) and PCR. A total of seven species were detected (Grimontia hollisae, Photobacterium damselae, Vibrio alginolyticus, V. cholerae, V. fluvialis, V. vulnificus and V. parahaemolyticus) and species diversity was higher at the end of summer. Surprisingly, V. cholerae non-O1/non-O139 was detected in spring. No site effect was detected. Using Sørensen similarity indices and statistical analyses, we showed that chlorophyll a had a significant influence on the bacterial community detected in mussels and assemblages were more similar to one another when chlorophyll a values were above 20 µg l(-1) . No significant effect of any parameter was found on the community detected in water samples. Such surveys are essential for the understanding of sanitary crises and detection of emerging pathogens.
Collapse
Affiliation(s)
- J Deter
- Ifremer, centre de Brest, Département Environnement, Microbiologie et Phycotoxines (EMP), Laboratoire de Microbiologie, ZI de la pointe du diable, B.P. 70, 29280 Plouzané, France. Ifremer, centre de Nantes, EMP/Laboratoire National de Référence Microbiologie des Coquillages, BP 21105, 44311 Nantes Cedex 3, France. Ifremer, LERPC, centre de La Rochelle, place Gaby Coll, BP 7, 17137 L'Houmeau, France
| | | | | | | | | | | |
Collapse
|
29
|
|