1
|
Chen S, Jin Y, Yang N, Wei L, Xu D, Xu X. Improving microbial production of value-added products through the intervention of magnetic fields. BIORESOURCE TECHNOLOGY 2024; 393:130087. [PMID: 38042431 DOI: 10.1016/j.biortech.2023.130087] [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: 08/10/2023] [Revised: 10/17/2023] [Accepted: 11/20/2023] [Indexed: 12/04/2023]
Abstract
The magnetic field application is emerging as an auxiliary physical strategy to facilitate rapid biomass accumulation and intracellular production of compounds. However, the underlying mechanisms and principles governing the application of magnetic fields for microbial growth and biotransformation are not yet fully understood. Therefore, a better understanding of interdisciplinary technologies integration, expanded magnetic field application, and scaled-up industrial implementation is crucial. In this review, the magnetic field characteristics, magnetic field-assisted fermentation devices, and the working mechanism of magnetic field have been reviewed comprehensively from both physical and microbiological perspectives. The review suggests that magnetic fields affect the biochemical processes in microorganisms by mediating nutrient transport across membranes, electron transfer during photosynthesis and respiration, enzyme activity and gene expression. Moreover, the recent advances in magnetic field application for microbial fermentation and conversion in biochemical, food and agricultural fields have been summarized.
Collapse
Affiliation(s)
- Sirui Chen
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Yamei Jin
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China.
| | - Na Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Liwen Wei
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Dan Xu
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Xueming Xu
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| |
Collapse
|
2
|
Ben Ghorbal S, Werhani R, Abdelwaheb C. Effects of certain physical stresses on the composition of the membrane of bacteria implicated in food and environmental contamination. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:408-418. [PMID: 36455161 DOI: 10.1080/09603123.2022.2151575] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
Bacterial membranes are implicated in the adaptation process of bacteria to numerous environmental conditions. In this context, our aim was to explain the consequences of a few physical stressor factors, like UV radiations and magnetic fields underlying the structural adaptation of cellular membranes to physical factors. The goal was also to review the state of the art about the link between membrane composition and bacterial resistance. According to comparative studies between ionizing γ-radiation, non-ionizing UVc radiations and Static Magnetic Field SMF, the response of some Gram negative bacteria appears to be generalized and was manifested by a membrane unsaturation, because of a production peak of unsaturated fatty acids. However, disturbances found inside the membrane, after UVB and Pulsed Electric Field (PEF) exposure were marked by a lower unsaturated fatty acids rate. This result is not concordant to disturbance seen after UVC treatment, even if the treatment is by UV radiation.
Collapse
Affiliation(s)
- SalmaKloula Ben Ghorbal
- Laboratoire de Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux Usées, Technopole Borj Cedria, Soliman, Tunisia
| | - Rim Werhani
- Laboratoire de Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux Usées, Technopole Borj Cedria, Soliman, Tunisia
| | - Chatti Abdelwaheb
- Laboratoire de Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux Usées, Technopole Borj Cedria, Soliman, Tunisia
- Unite de Biochimie des lipides et interactions des macromolécules en Biologie, Laboratoire de Biochimie et biologie moléculaire, Faculté des Sciences de Bizerte, Bizerte, Tunisia
| |
Collapse
|
3
|
Soto-Dávila M, Chakraborty S, Santander J. Relative expression and validation of Aeromonas salmonicida subsp. salmonicida reference genes during ex vivo and in vivo fish infection. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2022; 103:105320. [PMID: 35753622 DOI: 10.1016/j.meegid.2022.105320] [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: 03/26/2022] [Revised: 06/13/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
The genus Aeromonas is found worldwide in freshwater and marine environments and has been implicated in the etiology of human and animal diseases. In fish, among Aeromonas species, A. salmonicida causes massive mortality and great economic losses in marine and continental aquaculture species. Currently, several aspects of the clinical signs and pathogenesis of this Gram-negative bacterium have been described; however, determination of an appropriate reference gene is essential to normalize cellular mRNA data remain unknown. Here we evaluate the stability of seven candidate reference genes to be used for data normalization during ex vivo and in vivo experiments conducted in Atlantic cod, Atlantic salmon, and lumpfish. To assess this, raw Ct values obtained were evaluated by using geNorm, NormFinder, BestKeeper, Delta Ct comparison, and the comprehensive ranking, through the bioinformatic open-access portal RefFinder. We determined that fabD and era were most suitable reference genes in Atlantic cod primary macrophages, hfq and era in Atlantic salmon primary macrophages, rpoB and fabD in lumpfish head kidney samples, and hfq and era in lumpfish spleen. Our study demonstrates that use of multiple reference genes and its validation before measurements helps to minimize variability arising in qPCR studies that evaluate A. salmonicida gene expression in fish tissues. Overall, this study provided with an expanded list of reliable reference genes for A. salmonicida gene expression using qPCR during fish infection studies.
Collapse
Affiliation(s)
- Manuel Soto-Dávila
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL, Canada; Department of Biology, Faculty of Science, University of Waterloo, Waterloo, ON, Canada
| | - Setu Chakraborty
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Javier Santander
- Marine Microbial Pathogenesis and Vaccinology Lab, Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL, Canada.
| |
Collapse
|
4
|
Wang J, Ma W, Wang X. Insights into the structure of Escherichia coli outer membrane as the target for engineering microbial cell factories. Microb Cell Fact 2021; 20:73. [PMID: 33743682 PMCID: PMC7980664 DOI: 10.1186/s12934-021-01565-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 03/12/2021] [Indexed: 12/16/2022] Open
Abstract
Escherichia coli is generally used as model bacteria to define microbial cell factories for many products and to investigate regulation mechanisms. E. coli exhibits phospholipids, lipopolysaccharides, colanic acid, flagella and type I fimbriae on the outer membrane which is a self-protective barrier and closely related to cellular morphology, growth, phenotypes and stress adaptation. However, these outer membrane associated molecules could also lead to potential contamination and insecurity for fermentation products and consume lots of nutrients and energy sources. Therefore, understanding critical insights of these membrane associated molecules is necessary for building better microbial producers. Here the biosynthesis, function, influences, and current membrane engineering applications of these outer membrane associated molecules were reviewed from the perspective of synthetic biology, and the potential and effective engineering strategies on the outer membrane to improve fermentation features for microbial cell factories were suggested.
Collapse
Affiliation(s)
- Jianli Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China.,International Joint Laboratory On Food Safety, Jiangnan University, Wuxi, 214122, China
| | - Wenjian Ma
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China.,Science Center for Future Foods, Jiangnan University, Wuxi, 214122, China
| | - Xiaoyuan Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, China. .,Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China.
| |
Collapse
|
5
|
Drozd R, Szymańska M, Żywicka A, Kowalska U, Rakoczy R, Kordas M, Konopacki M, Junka AF, Fijałkowski K. Exposure to non-continuous rotating magnetic field induces metabolic strain-specific response of Komagataeibacter xylinus. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2020.107855] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
6
|
relA and spoT Gene Expression is Modulated in Salmonella Grown Under Static Magnetic Field. Curr Microbiol 2021; 78:887-893. [PMID: 33515321 DOI: 10.1007/s00284-021-02346-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 01/10/2021] [Indexed: 10/22/2022]
Abstract
Virtually all bacterial species synthesize high levels of (p)ppGpp (guanosine penta- or tetraphosphate), a pleiotropic regulator of the stringent response and other stresses in bacteria. relA and spoT genes are, respectively, involved in synthesis and synthesis/biodegradation of (p)ppGpp. We aimed in this work to evaluate the impact of static magnetic field (SMF) 200 mT exposure on the expression of relA and spoT genes in Salmonella enterica Hadar. Bacteria were exposed to a SMF during 9 h, and RNA extraction was followed by reverse transcriptase polymerase chain reaction (RT-PCR). The relative quantification of mRNA expression levels using the 16S rRNA reference gene did not change during the SMF exposure. However, results showed a significant increase in gene expression for relA after 3 h of exposure (P < 0.05) and after 6 h for spoT (P < 0.05). The differential gene expression of relA and spoT could be considered as a potential stress response to a SMF exposure in Salmonella related to the production/degradation of (p)ppGpp.
Collapse
|
7
|
The Effect of Static Magnetic Field on Methanogenesis in the Anaerobic Digestion of Municipal Sewage Sludge. ENERGIES 2021. [DOI: 10.3390/en14030590] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The present study aimed to determine the effect of a 17.6 mT static magnetic field (SMF) on the efficiency of anaerobic digestion (AD) of municipal sewage sludge (MSS). The SMF had a significant impact on methane (CH4) production efficiency, the levels of fermentation rate (ηFMSS) vs. removal rate (ηVS), and the structure of the anaerobic bacteria consortium, but it did not affect cumulative biogas production. The highest CH4 yield (431 ± 22 dm3CH4/kgVS) and the highest methane content in the biogas (66.1% ± 1.9%) were found in the variant in which the SMF exposure time was 144 min/day. This variant also produced the highest ηFMSS and ηVS values, reaching 73.8% ± 2.3% and ηVS 36.9% ± 1.6%, respectively. Longer anaerobic sludge retention time in the SMF area significantly decreased AD efficiency and caused a significant reduction in the number of methanogens in the anaerobic bacteria community. The lowest values were observed for SMF exposure time of 432 min/day, which produced only 54.8 ± 1.9% CH4 in the biogas. A pronounced reduction was recorded in the Archaea (ARC915) and Methanosaeta (MX825) populations in the anaerobic sludge, i.e., to 20% ± 11% and 6% ± 2%, respectively.
Collapse
|
8
|
Connors E, Soto-Dávila M, Hossain A, Vasquez I, Gnanagobal H, Santander J. Identification and validation of reliable Aeromonas salmonicida subspecies salmonicida reference genes for differential gene expression analyses. INFECTION GENETICS AND EVOLUTION 2019; 73:314-321. [DOI: 10.1016/j.meegid.2019.05.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 05/09/2019] [Accepted: 05/14/2019] [Indexed: 01/19/2023]
|
9
|
Mansouri A, Abbes C, Ben Mouhoub R, Ben Hassine S, Landoulsi A. Enhancement of mixture pollutant biodegradation efficiency using a bacterial consortium under static magnetic field. PLoS One 2019; 14:e0208431. [PMID: 30608939 PMCID: PMC6319723 DOI: 10.1371/journal.pone.0208431] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 11/16/2018] [Indexed: 11/19/2022] Open
Abstract
One of the main challenges of bioremediation is to define efficient protocols with low environmental impact and high removal rates, such as static magnetic field (SMF). The aim of this study was to evaluate the effect of SMF exposure on the biodegradation rate of a mixture of pollutants using three bacterial strains which were isolated and identified from the Bizerte lagoon: Pseudomonas stutzeri LBR (KC157911), Cupriavidus metallidurans LBJ (KU659610) and Rhodococcus equi LBB (KU743870). To recognize the improvement role of SMF, the culture was submitted to a pre-treatment with SMF with an induction equal to 200 mT for 5 hours, after that the degradation experiment was followed with individual strains and with a consortium. Results showed an increase by 20% in the growth of the exposed bacterial population compared to controls, and 98% of biodegradation of DDT and 90% for BaP after 30 days of follow-up. This encouraging data opens new perspectives for a bioremediation bioprocess using SMF.
Collapse
Affiliation(s)
- Ahlem Mansouri
- University of Carthage, Biochemistry and Molecular Biology Lab of Faculty of Sciences, Risks Related to Environmental Stress, Struggle and Prevention (UR17ES20), Bizerte, Zarzouna, Tunisia
- * E-mail:
| | - Chiraz Abbes
- University of Carthage, Biochemistry and Molecular Biology Lab of Faculty of Sciences, Risks Related to Environmental Stress, Struggle and Prevention (UR17ES20), Bizerte, Zarzouna, Tunisia
| | - Ramla Ben Mouhoub
- University of Carthage, Biochemistry and Molecular Biology Lab of Faculty of Sciences, Risks Related to Environmental Stress, Struggle and Prevention (UR17ES20), Bizerte, Zarzouna, Tunisia
| | - Sihem Ben Hassine
- Laboratory of Environmental Analytical Chemistry, University of Carthage, Faculty of Sciences of Bizerte, Zarzouna, Tunisia
| | - Ahmed Landoulsi
- University of Carthage, Biochemistry and Molecular Biology Lab of Faculty of Sciences, Risks Related to Environmental Stress, Struggle and Prevention (UR17ES20), Bizerte, Zarzouna, Tunisia
| |
Collapse
|
10
|
Ben Mouhoub R, El May A, Boujezza I, Sethom MM, Feki M, Landoulsi A. Viability and membrane lipid composition under a 57mT static magnetic field in Salmonella Hadar. Bioelectrochemistry 2018; 122:134-141. [PMID: 29627665 DOI: 10.1016/j.bioelechem.2018.03.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 10/17/2022]
Abstract
The aim of this work is to demonstrate the effects of a static magnetic field (SMF) with an induction 12 equal to 57mT on the viability and membrane lipid composition of Salmonella Hadar. Results showed an increase in the viability of exposed bacteria compared to controls after 9h of exposure. Analysis with gas chromatography of total lipids (TLs) and different fractions of phospholipids: phosphatidylglycerols (PGs), phosphatidylethanolamines (PEs), and cardiolipins (CLs), separated by thin layer chromatography revealed changes in fatty acid levels during exposure. For TLs, the unsaturated fatty acids/saturated fatty acids ratio (UFAs/SFAs) had significantly increased after 9 h of exposure. The variation of this ratio seems to be essentially due to the increase of the proportion of unsaturated fatty acids with 18 carbons, in particular C18:1. The analyses of fatty acid composition carried out on the scale of each fraction of phospholipids showed that CLs contributed significantly to the increase of the proportion of the unsaturated fatty acids between 6 and 9h of exposure thanks to their unsaturated chains with 18 carbons (especially C18:2). CLs appear to be the main phospholipid involved in the adaptation of S. Hadar membranes to the SMF.
Collapse
Affiliation(s)
- Ramla Ben Mouhoub
- Biochemistry and Molecular Biology, Code UR13ES34 Research Unit, Faculty of Sciences of Bizerte, Zarzouna 7021, Carthage University, Tunisia.
| | - Alya El May
- Biochemistry and Molecular Biology, Code UR13ES34 Research Unit, Faculty of Sciences of Bizerte, Zarzouna 7021, Carthage University, Tunisia
| | - Imen Boujezza
- Biochemistry and Molecular Biology, Code UR13ES34 Research Unit, Faculty of Sciences of Bizerte, Zarzouna 7021, Carthage University, Tunisia
| | - Mohamed Marouen Sethom
- Université de Tunis El Manar, Faculté de Médecine de Tunis, CHU La Rabta, Laboratoire de Biochimie, LR99ES11, Jebbari, 1007 Tunis, Tunisia
| | - Moncef Feki
- Université de Tunis El Manar, Faculté de Médecine de Tunis, CHU La Rabta, Laboratoire de Biochimie, LR99ES11, Jebbari, 1007 Tunis, Tunisia
| | - Ahmed Landoulsi
- Biochemistry and Molecular Biology, Code UR13ES34 Research Unit, Faculty of Sciences of Bizerte, Zarzouna 7021, Carthage University, Tunisia
| |
Collapse
|
11
|
Khokhlova G, Vainshtein M. Application of static and impulse magnetic fields to bacteria Rhodospirillum rubrum VKM B-1621. AMB Express 2017; 7:60. [PMID: 28284003 PMCID: PMC5346098 DOI: 10.1186/s13568-017-0362-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 03/03/2017] [Indexed: 01/08/2023] Open
Abstract
The paper presents effects of different magnetic fields (MFs) (static—SMF and impulse—IMF) on bacteria Rhodospirillum rubrum VKM B-1621. The MFs had different magnetic strength: SMF—up to 173 mT; IMF—25 mT. The studied object was amylase activity which was measured by decrease in the starch concentration during incubation in the MFs. The term of incubation in the MFs was limited with 2 h. The SMF affected neither amylase activity of R. rubrum nor standard deviation in distribution of the residual starch concentration along the plate but the IMF did. The IMS effects varied along the plate which could be related with distance from the magnetic center of the applied device. In whole, application of impulse MFs can regulate bacterial activity and thus could be used for biotechnological application.
Collapse
|
12
|
Mansouri A, Abbes C, Landoulsi A. Combined intervention of static magnetic field and growth rate of Microbacterium maritypicum CB7 for Benzo( a )Pyrene biodegradation. Microb Pathog 2017; 113:40-44. [DOI: 10.1016/j.micpath.2017.10.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 10/02/2017] [Accepted: 10/04/2017] [Indexed: 10/18/2022]
|
13
|
Ben Mouhoub R, Mansouri A, Aliliche K, Beghalem H, Landoulsi A, El May A. Unraveling the expression of genes involved in the biosynthesis pathway of cardiolipin and phosphatidylethanolamine in Salmonella Hadar grown under static magnetic field 200 mT. Microb Pathog 2017; 111:414-421. [PMID: 28923603 DOI: 10.1016/j.micpath.2017.09.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/14/2017] [Accepted: 09/14/2017] [Indexed: 01/07/2023]
Abstract
We aimed in this work to evaluate the effect of static magnetic field 200 mT (SMF) on the expression of genes involved in the biosynthetic pathway of cardiolipin: g3pd, plsB, cdsA, pgsA, pgpA, cls and phosphatidylethanolamine: pssA and psd in Salmonella enterica subsp enterica serovar Hadar. Bacteria were exposed to a SMF during 3, 6 and 9 h. RNA extraction was followed by Reverse Transcriptase Polymerase Chain Reaction RT-PCR. The relative quantification of mRNA expression levels using 16S rRNA doesn't change during the time exposure. RT-PCR was done for two exposure experiments. The gene expression using RT-PCR present no significant difference in case of plsB, cdsA, pgpA, pgsA and psd genes during the different exposure times. However, a significant increase was observed in the expression of g3pd and pssA genes after 6 h and for cls gene after 3 h of exposure, but any variation was notified after 9 h of exposure. So we can conclude from this study that cls, g3pd and pssA genes are required in the adaptation of Salmonella Hadar to SMF.
Collapse
Affiliation(s)
- Ramla Ben Mouhoub
- Biochemistry and Molecular Biology, Code UR13ES34 Research Unit, Faculty of Sciences of Bizerte, Zarzouna 7021, Carthage University, Tunisia.
| | - Ahlem Mansouri
- Biochemistry and Molecular Biology, Code UR13ES34 Research Unit, Faculty of Sciences of Bizerte, Zarzouna 7021, Carthage University, Tunisia
| | - Khadidja Aliliche
- Laboratory of Genetics, Faculty of Science of Bizerte, Zarzouna 7021, Tunisia
| | - Hamida Beghalem
- Laboratory of Genetics, Faculty of Science of Bizerte, Zarzouna 7021, Tunisia
| | - Ahmed Landoulsi
- Biochemistry and Molecular Biology, Code UR13ES34 Research Unit, Faculty of Sciences of Bizerte, Zarzouna 7021, Carthage University, Tunisia
| | - Alya El May
- Biochemistry and Molecular Biology, Code UR13ES34 Research Unit, Faculty of Sciences of Bizerte, Zarzouna 7021, Carthage University, Tunisia
| |
Collapse
|
14
|
Hanini R, Chatti A, Ghorbel SB, Landoulsi A. Role of Sod Gene in Response to Static Magnetic Fields in Pseudomonas aeruginosa. Curr Microbiol 2017; 74:930-937. [PMID: 28523373 DOI: 10.1007/s00284-017-1264-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 05/10/2017] [Indexed: 12/11/2022]
Abstract
The protective role of superoxide dismutase (SOD) against non-ionizing radiation such as static electromagnetic field (200 mT) has been studied in wild-type and mutant strain of Pseudomonas aeruginosa lacking cytosolic Mn-SOD (sodM), Fe-SOD (sodB), or both SODs (sodMB). Our results showed that inactivation of sodM and/or sodB genes increases the sensitivity of P. aeruginosa toward stress induced by the static magnetic field (200 mT). Furthermore, our results showed an enhancement of SOD, catalase, and peroxidases after exposure to the magnetic field. However, wild-type cells maintained significantly higher activities of antioxidant enzymes than mutant strains. The malondialdehyde produced by the oxidative degradation of unsaturated lipids and fatty acids showed significant increase in mutant strains compared to the wild-type. The overall results showed that the SOD has a protective role against a stress induced by static electromagnetic field in P. aeruginosa.
Collapse
Affiliation(s)
- Raouia Hanini
- Unité de Biochimie des lipides et interactions des macromolécules en Biologie (03/UR/0902), Laboratoire de Biochimie et biologie moléculaire, Faculté des Sciences de Bizerte, Zarzouna 7021, Bizerte, Tunisia.
| | - Abdelwaheb Chatti
- Laboratoire de Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux, Technopole Borj Cedria, Tunis, Tunisia
| | - Selma Ben Ghorbel
- Laboratoire de Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux, Technopole Borj Cedria, Tunis, Tunisia
| | - Ahmed Landoulsi
- Unité de Biochimie des lipides et interactions des macromolécules en Biologie (03/UR/0902), Laboratoire de Biochimie et biologie moléculaire, Faculté des Sciences de Bizerte, Zarzouna 7021, Bizerte, Tunisia
| |
Collapse
|
15
|
Influence of static magnetic field exposure on fatty acid composition in Salmonella Hadar. Microb Pathog 2017; 108:13-20. [PMID: 28455137 DOI: 10.1016/j.micpath.2017.04.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 04/23/2017] [Accepted: 04/24/2017] [Indexed: 11/20/2022]
Abstract
We have been interested, in this work, to investigate the effect of the exposure to static magnetic field at 200 mT (SMF) on the fatty acid (FA) composition of Salmonella enterica subsp Enterica serovar Hadar isolate 287: effects on the proportion of saturated and unsaturated fatty acids (SFAs, UFAs), cyclopropane fatty acids (CFAs) and hydroxy fatty acids after exposure to the static magnetic field at 200 mT (SMF). Analysis with Gas Chromatography-Mass Spectrometry (GC-MS) of total lipid showed that the proportion of the most fatty acids was clearly affected. The comparison of UFAs/SFAs ratio in exposed bacteria and controls showed a diminution after 3 and 6 h of exposure. This ration reached a balance after 9 h of treatment with SMF. So we can conclude that S. Hadar tries to adapt to magnetic stress by changing the proportions of SFAs and UFAs over time to maintain an equilibrium after 9 h of exposure, thus to maintain the inner membranes fluidity. Also, a decrease in the proportion of hydroxy FAs was observed after 6 h but an increase of this proportion after 9 h of exposure. Concerning CFAs, its proportion raised after 6 h of exposure to the SMF but it decreased after 9 h of exposure. These results are strongly correlated with those of cfa (cyclopropane fatty acid synthase) gene expression which showed a decrease of its expression after 9 h of exposure.
Collapse
|
16
|
Effect of Pulsed Electric Field on Membrane Lipids and Oxidative Injury of Salmonella typhimurium. Int J Mol Sci 2016; 17:ijms17081374. [PMID: 27556460 PMCID: PMC5000769 DOI: 10.3390/ijms17081374] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 08/10/2016] [Accepted: 08/12/2016] [Indexed: 11/17/2022] Open
Abstract
Salmonella typhimurium cells were subjected to pulsed electric field (PEF) treatment at 25 kV/cm for 0–4 ms to investigate the effect of PEF on the cytoplasmic membrane lipids and oxidative injury of cells. Results indicated that PEF treatment induced a decrease of membrane fluidity of Salmonella typhimurium (S. typhimuriumi), possibly due to the alterations of fatty acid biosynthesis-associated gene expressions (down-regulation of cfa and fabA gene expressions and the up-regulation of fabD gene expression), which, in turn, modified the composition of membrane lipid (decrease in the content ratio of unsaturated fatty acids to saturated fatty acids). In addition, oxidative injury induced by PEF treatment was associated with an increase in the content of malondialdehyde. The up-regulation of cytochrome bo oxidase gene expressions (cyoA, cyoB, and cyoC) indicated that membrane damage was induced by PEF treatment, which was related to the repairing mechanism of alleviating the oxidative injury caused by PEF treatment. Based on these results, we achieved better understanding of microbial injury induced by PEF, suggesting that micro-organisms tend to decrease membrane fluidity in response to PEF treatment and, thus, a greater membrane fluidity might improve the efficiency of PEF treatment to inactivate micro-organisms.
Collapse
|
17
|
Hidouri S, Yohmes MB, Landoulsi A. Contribution of silver nanoparticles to extend Salmonella typhimurium growth under various respiration regimes. Bioprocess Biosyst Eng 2016; 39:1635-44. [PMID: 27287758 DOI: 10.1007/s00449-016-1639-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 06/05/2016] [Indexed: 01/25/2023]
Abstract
Living cells interact with different forms of metal; the resulted biochemical alteration depends on the dose. Over an average dose in ionic form, metals interact with respiration processes at various levels, and it induces oxidative stress by shifting the whole oxydoreduction equilibrium. To correct the toxicity, cell develops different ways to cancel the effect of the exceeded charges, and it reduces the ion to get a more stable form. In the case of nanoparticles, the reactivity of surface has been enhanced that can alter the biological mechanisms; the cell may develop different strategies to minimize this reactivity. The current study is focused on the pursuing of cell behavior regarding the presence of nanoparticles and their associated metals. Nanoparticles have been synthesized using bio-reducing agents and then were structurally characterized using X-ray diffraction, UV-Vis, and infra-red spectroscopy. The oxydoreduction flexibility of the post-synthesis modified nanoparticles was tested in vitro. Interactions with cells were done using Salmonella under various respiration conditions. The final results show the possible correction of oxidative stress effects and the recuperation of respiration.
Collapse
Affiliation(s)
- Slah Hidouri
- Laboratory of Biochemistry and Molecular Biology, Department of Research, Faculty of Sciences of Bizerta, Carthage University, 7021, Jarzouna, Tunisia.
| | - Mannoubia Ben Yohmes
- Laboratory of Biochemistry and Molecular Biology, Department of Research, Faculty of Sciences of Bizerta, Carthage University, 7021, Jarzouna, Tunisia
| | - Ahmed Landoulsi
- Laboratory of Biochemistry and Molecular Biology, Department of Research, Faculty of Sciences of Bizerta, Carthage University, 7021, Jarzouna, Tunisia
| |
Collapse
|
18
|
Goldschmidt Lins P, Aparecida Silva A, Marina Piccoli Pugine S, Ivan Cespedes Arce A, José Xavier Costa E, Pires De Melo M. Effect of Exposure to Pulsed Magnetic Field on Microbiological Quality, Color and Oxidative Stability of Fresh Ground Beef. J FOOD PROCESS ENG 2016. [DOI: 10.1111/jfpe.12405] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Patricia Goldschmidt Lins
- Department of Basic Sciences (ZAB); Faculty of Animal Science and Food Engineering (FZEA); University of São Paulo (USP); Av. Duque de Caxias Norte 225, Campus Fernando Costa USP, CEP 13635-900 Pirassununga, São Paulo Brazil
| | - Alessandra Aparecida Silva
- Department of Basic Sciences (ZAB); Faculty of Animal Science and Food Engineering (FZEA); University of São Paulo (USP); Av. Duque de Caxias Norte 225, Campus Fernando Costa USP, CEP 13635-900 Pirassununga, São Paulo Brazil
| | - Silvana Marina Piccoli Pugine
- Department of Basic Sciences (ZAB); Faculty of Animal Science and Food Engineering (FZEA); University of São Paulo (USP); Av. Duque de Caxias Norte 225, Campus Fernando Costa USP, CEP 13635-900 Pirassununga, São Paulo Brazil
| | - Aldo Ivan Cespedes Arce
- Department of Basic Sciences (ZAB); Faculty of Animal Science and Food Engineering (FZEA); University of São Paulo (USP); Av. Duque de Caxias Norte 225, Campus Fernando Costa USP, CEP 13635-900 Pirassununga, São Paulo Brazil
| | - Ernane José Xavier Costa
- Department of Basic Sciences (ZAB); Faculty of Animal Science and Food Engineering (FZEA); University of São Paulo (USP); Av. Duque de Caxias Norte 225, Campus Fernando Costa USP, CEP 13635-900 Pirassununga, São Paulo Brazil
| | - Mariza Pires De Melo
- Department of Basic Sciences (ZAB); Faculty of Animal Science and Food Engineering (FZEA); University of São Paulo (USP); Av. Duque de Caxias Norte 225, Campus Fernando Costa USP, CEP 13635-900 Pirassununga, São Paulo Brazil
| |
Collapse
|
19
|
Milovanovich ID, Ćirković S, De Luka SR, Djordjevich DM, Ilić AŽ, Popović T, Arsić A, Obradović DD, Oprić D, Ristić-Djurović JL, Trbovich AM. Homogeneous static magnetic field of different orientation induces biological changes in subacutely exposed mice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:1584-1597. [PMID: 26377971 DOI: 10.1007/s11356-015-5109-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 07/21/2015] [Indexed: 06/05/2023]
Abstract
It has been shown that static magnetic field (SMF) of moderate intensity produces considerable impact on biological systems. SMF can be homogeneous or inhomogeneous. In many studies, inhomogeneous SMF was employed. Aware that inhomogeneous SMF could result in experimental variability, we investigated the influence of a vertical homogeneous SMF of different orientation. Male Swiss-Webster 9- to 10-week-old mice were subacutely exposed to upward- and downward-oriented SMF of 128 mT generated by a cyclotron for 1 h/day during a 5-day period. We found that SMF affected various organs and that these effects were, to some degree, dependent on SMF orientation. Both upward- and downward-oriented SMF caused a reduction in the amount of total white blood cells (WBC) and lymphocytes in serum, a decrease of granulocytes in the spleen, kidney inflammation, and an increase in the amount of high-density lipoprotein (HDL). In addition, upward-oriented SMF caused brain edema and increased spleen cellularity. In contrast, downward-oriented SMF induced liver inflammation and a decrease in the amount of serum granulocytes. These effects might represent a specific redistribution of pro-inflammatory cells in blood and among various organs. It appears that homogeneous SMF of 128 mT affected specific organs in the body, rather than simultaneously and equally influencing the entire body system.
Collapse
Affiliation(s)
- Ivan D Milovanovich
- Department of Pathological Physiology, School of Medicine, University of Belgrade, Dr Subotića 9, 11000, Belgrade, Serbia
| | - Saša Ćirković
- Institute of Physics, University of Belgrade, Pregrevica 118, 11080, Zemun-Belgrade, Serbia
| | - Silvio R De Luka
- Department of Pathological Physiology, School of Medicine, University of Belgrade, Dr Subotića 9, 11000, Belgrade, Serbia
| | - Drago M Djordjevich
- Department of Pathological Physiology, School of Medicine, University of Belgrade, Dr Subotića 9, 11000, Belgrade, Serbia
| | - Andjelija Ž Ilić
- Institute of Physics, University of Belgrade, Pregrevica 118, 11080, Zemun-Belgrade, Serbia
| | - Tamara Popović
- Institute for Medical Research University of Belgrade, Laboratory for Nutrition and Metabolism, Tadeuša Košćuška 1, 11000, Belgrade, Serbia
| | - Aleksandra Arsić
- Institute for Medical Research University of Belgrade, Laboratory for Nutrition and Metabolism, Tadeuša Košćuška 1, 11000, Belgrade, Serbia
| | - Danilo D Obradović
- Department of Pathology, School of Medicine, University of Belgrade, Dr Subotića 9, 11000, Belgrade, Serbia
| | - Dejan Oprić
- Department of Pathology, School of Medicine, University of Belgrade, Dr Subotića 9, 11000, Belgrade, Serbia
| | | | - Alexander M Trbovich
- Department of Pathological Physiology, School of Medicine, University of Belgrade, Dr Subotića 9, 11000, Belgrade, Serbia.
| |
Collapse
|
20
|
Snoussi S, El May A, Coquet L, Chan P, Jouenne T, Dé E, Landoulsi A. Unraveling the effects of static magnetic field stress on cytosolic proteins of Salmonella by using a proteomic approach. Can J Microbiol 2015; 62:338-48. [PMID: 26928316 DOI: 10.1139/cjm-2015-0532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present study investigated the adaptation of Salmonella enterica subsp. enterica serovar Hadar to static magnetic field (SMF) exposure (200 mT, 9 h). The proteomic analysis provides an overview of potentially important cytosolic proteins that Salmonella needs to regulate to survive and adapt to magnetic stress. Via 2-dimensional electrophoresis and liquid chromatography tandem mass spectrometry, we compared cytosolic proteomes before and after exposure to magnetic field. A total of 35 proteins displaying more than a 2-fold change were differentially expressed in exposed cells, among which 25 were upregulated and 10 were downregulated. These proteins can be classified mainly into 6 categories: (i) proteins involved in metabolic pathways of carbohydrates, (ii) chaperones and proteins produced in response to oxidative stress, (iii) proteins involved in energy homeostasis, (iv) elongation factors (EF-Tu and EF-Ts), (v) proteins involved in motility, and (vi) proteins involved in molecules transport. Many of the presented observations could be explained, while some represent still-unknown mechanisms. In addition, this study reveals 5 hypothetical proteins. It seems that the stress response to SMF (200 mT) is essentially set up to avoid oxidative damages, with the overexpression of proteins directly involved in oxidative stress response and metabolic switches to counteract oxidative stress. Interestingly, several proteins induced under SMF exposure are found to overlap with those induced by other stresses, such as heat shock and starvation.
Collapse
Affiliation(s)
- Sarra Snoussi
- a Laboratoire de Biochimie et Biologie Moléculaire, Faculté des Sciences de Bizerte, Université de Carthage, 7021 Zarzouna, Bizerte, Tunisie.,b UMR 6270 CNRS, Faculté des sciences, Université de Rouen, 76821 Mont Saint Aignan Cedex, France
| | - Alya El May
- a Laboratoire de Biochimie et Biologie Moléculaire, Faculté des Sciences de Bizerte, Université de Carthage, 7021 Zarzouna, Bizerte, Tunisie
| | - Laurent Coquet
- b UMR 6270 CNRS, Faculté des sciences, Université de Rouen, 76821 Mont Saint Aignan Cedex, France
| | - Philippe Chan
- b UMR 6270 CNRS, Faculté des sciences, Université de Rouen, 76821 Mont Saint Aignan Cedex, France
| | - Thierry Jouenne
- b UMR 6270 CNRS, Faculté des sciences, Université de Rouen, 76821 Mont Saint Aignan Cedex, France
| | - Emmanuelle Dé
- b UMR 6270 CNRS, Faculté des sciences, Université de Rouen, 76821 Mont Saint Aignan Cedex, France
| | - Ahmed Landoulsi
- a Laboratoire de Biochimie et Biologie Moléculaire, Faculté des Sciences de Bizerte, Université de Carthage, 7021 Zarzouna, Bizerte, Tunisie
| |
Collapse
|
21
|
Membrane fluidity-related adaptive response mechanisms of foodborne bacterial pathogens under environmental stresses. Food Res Int 2015. [DOI: 10.1016/j.foodres.2015.03.016] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Bayır E, Bilgi E, Şendemir-Ürkmez A, Hameş-Kocabaş EE. The effects of different intensities, frequencies and exposure times of extremely low-frequency electromagnetic fields on the growth of Staphylococcus aureus and Escherichia coli O157:H7. Electromagn Biol Med 2013; 34:14-8. [PMID: 24279632 DOI: 10.3109/15368378.2013.853671] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The impact of different types of extremely low-frequency electromagnetic fields (ELF-EMF) on the growth of Staphylococcus aureus and Escherichia coli O157:H7 was investigated. The cultures of bacteria in broth media were exposed to sinusoidal homogenous ELF-EMF with 2 and 4 mT magnetic intensities. Each intensity for each bacteria was combined with three different frequencies (20, 40 and 50 Hz), and four different exposure times (1, 2, 4 and 6 h). A cell suspension of each experiment was diluted for the appropriate range and inoculated to Mueller-Hinton Agar (MHA) plates after exposure to ELF-EMF. The number of colony forming units (CFU) of both strains was obtained after incubation at 37 °C for 24 h. Data were statistically evaluated by one-way analysis of variance (ANOVA), statistical significance was described at p < 0.05 and data were compared with their non-exposed controls. Magnetic intensity, frequency and exposure time of ELF-EMFs changed the characteristic responses for both microorganisms. Samples exposed to ELF-EMF showed a statistically significant decrease compared to their controls in colony forming capability, especially at long exposure times. An exposure to 4 mT-20 Hz ELF-EMF of 6 h produced maximum inhibition of CFU compared to their controls for both microorganisms (95.2% for S. aureus and 85% for E. coli).
Collapse
Affiliation(s)
- Ece Bayır
- Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences and
| | | | | | | |
Collapse
|
23
|
Studies of separation of vapours and gases through composite membranes with ferroferric oxide magnetic nanoparticles. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.02.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|