1
|
Ivshina IB, Kuyukina MS, Litvinenko LV, Golysheva AA, Kostrikina NA, Sorokin VV, Mulyukin AL. Bioaccumulation of molybdate ions by alkanotrophic Rhodococcus leads to significant alterations in cellular ultrastructure and physiology. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 274:116190. [PMID: 38503110 DOI: 10.1016/j.ecoenv.2024.116190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 03/03/2024] [Accepted: 03/06/2024] [Indexed: 03/21/2024]
Abstract
Alkanotrophic Rhodococcus strains from the Regional Specialised Collection of Alkanotrophic Microorganisms (acronym IEGM, www.iegmcol.ru) were screened for accumulation and sorption of MoO42- ions. Morphological and ultrastructural changes observed in bacterial cells during their cultivation in the molybdenum-containing medium are described. The species peculiarities, growth substrate preferences, and other physiological features allowing for the efficient removal of molybdate ions from the culture medium are discussed. Bioinformatics analysis of genes and proteins responsible for resistance to and accumulation of molybdenum was carried out using the sequenced R. ruber IEGM 231 and other published Rhodococcus genomes. n-Hexadecane growing strains with high (up to 85 %) accumulative activity and resistance to elevated (up to 20.0 mM) molybdenum concentrations were selected, which can be used for bioremediation of environments co-contaminated with heavy metals and hydrocarbons. Transmission electron microscopy and energy dispersive X-ray spectroscopy (TEM-EDX) revealed the ability of Rhodococcus not only to accumulate, but also to chemically convert soluble toxic molybdenum into insoluble compounds detected in the form of electron-dense nanoparticles.
Collapse
Affiliation(s)
- Irina B Ivshina
- Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13a Lenin Street, Perm 614990, Russia; Perm State National Research University, 15 Bukirev Street, Perm 614068, Russia; Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences - Branch of the Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13 Goleva Street, Perm 614081, Russia.
| | - Maria S Kuyukina
- Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13a Lenin Street, Perm 614990, Russia; Perm State National Research University, 15 Bukirev Street, Perm 614068, Russia; Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences - Branch of the Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13 Goleva Street, Perm 614081, Russia
| | - Lyudmila V Litvinenko
- Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13a Lenin Street, Perm 614990, Russia; Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences - Branch of the Perm Federal Research Center, Ural Branch, Russian Academy of Sciences, 13 Goleva Street, Perm 614081, Russia
| | | | - Nadezhda A Kostrikina
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, build. 2, 33, Leninsky prospect, Moscow 119071, Russia
| | - Vladimir V Sorokin
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, build. 2, 33, Leninsky prospect, Moscow 119071, Russia
| | - Andrey L Mulyukin
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, build. 2, 33, Leninsky prospect, Moscow 119071, Russia
| |
Collapse
|
2
|
Tyumina E, Bazhutin G, Kostrikina N, Sorokin V, Mulyukin A, Ivshina I. Phenotypic and metabolic adaptations of Rhodococcus cerastii strain IEGM 1243 to separate and combined effects of diclofenac and ibuprofen. Front Microbiol 2023; 14:1275553. [PMID: 38125575 PMCID: PMC10730942 DOI: 10.3389/fmicb.2023.1275553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Introduction The increasing use of non-steroidal anti-inflammatory drugs (NSAIDs) has raised concerns regarding their environmental impact. To address this, understanding the effects of NSAIDs on bacteria is crucial for bioremediation efforts in pharmaceutical-contaminated environments. The primary challenge in breaking down persistent compounds lies not in the biochemical pathways but in capacity of bacteria to surmount stressors. Methods In this study, we examined the biodegradative activity, morphological and physiological changes, and ultrastructural adaptations of Rhodococcus cerastii strain IEGM 1243 when exposed to ibuprofen, diclofenac, and their mixture. Results and Discussion Our findings revealed that R. cerastii IEGM 1243 exhibited moderate biodegradative activity towards the tested NSAIDs. Cellular respiration assay showed higher metabolic activity in the presence of NSAIDs, indicating their influence on bacterial metabolism. Furthermore, catalase activity in R. cerastii IEGM 1243 exposed to NSAIDs showed an initial decrease followed by fluctuations, with the most significant changes observed in the presence of DCF and the NSAID mixture, likely influenced by bacterial growth phases, active NSAID degradation, and the formation of multicellular aggregates, suggesting potential intercellular synergy and task distribution within the bacterial community. Morphometric analysis demonstrated alterations in size, shape, and surface roughness of cells exposed to NSAIDs, with a decrease in surface area and volume, and an increase in surface area-to-volume ratio (SA/V). Moreover, for the first time, transmission electron microscopy confirmed the presence of lipid inclusions, polyphosphates, and intracellular membrane-like structures in the ibuprofen-treated cells. Conclusion These results provide valuable insights into the adaptive responses of R. cerastii IEGM 1243 to NSAIDs, shedding light on the possible interaction between bacteria and pharmaceutical compounds in the environment.
Collapse
Affiliation(s)
- Elena Tyumina
- Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, Institute of Ecology and Genetics of Microorganisms, Perm, Russia
- Department of Microbiology and Immunology, Perm State University, Perm, Russia
| | - Grigory Bazhutin
- Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, Institute of Ecology and Genetics of Microorganisms, Perm, Russia
- Department of Microbiology and Immunology, Perm State University, Perm, Russia
| | - Nadezhda Kostrikina
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, Russia
| | - Vladimir Sorokin
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, Russia
| | - Andrey Mulyukin
- Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, Russia
| | - Irina Ivshina
- Perm Federal Research Center, Ural Branch of the Russian Academy of Sciences, Institute of Ecology and Genetics of Microorganisms, Perm, Russia
- Department of Microbiology and Immunology, Perm State University, Perm, Russia
| |
Collapse
|
3
|
Buyel JF. Product safety aspects of plant molecular farming. Front Bioeng Biotechnol 2023; 11:1238917. [PMID: 37614627 PMCID: PMC10442644 DOI: 10.3389/fbioe.2023.1238917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 07/31/2023] [Indexed: 08/25/2023] Open
Abstract
Plant molecular farming (PMF) has been promoted since the 1990s as a rapid, cost-effective and (most of all) safe alternative to the cultivation of bacteria or animal cells for the production of biopharmaceutical proteins. Numerous plant species have been investigated for the production of a broad range of protein-based drug candidates. The inherent safety of these products is frequently highlighted as an advantage of PMF because plant viruses do not replicate in humans and vice versa. However, a more nuanced analysis of this principle is required when considering other pathogens because toxic compounds pose a risk even in the absence of replication. Similarly, it is necessary to assess the risks associated with the host system (e.g., the presence of toxic secondary metabolites) and the production approach (e.g., transient expression based on bacterial infiltration substantially increases the endotoxin load). This review considers the most relevant host systems in terms of their toxicity profile, including the presence of secondary metabolites, and the risks arising from the persistence of these substances after downstream processing and product purification. Similarly, we discuss a range of plant pathogens and disease vectors that can influence product safety, for example, due to the release of toxins. The ability of downstream unit operations to remove contaminants and process-related toxic impurities such as endotoxins is also addressed. This overview of plant-based production, focusing on product safety aspects, provides recommendations that will allow stakeholders to choose the most appropriate strategies for process development.
Collapse
Affiliation(s)
- J. F. Buyel
- Department of Biotechnology (DBT), Institute of Bioprocess Science and Engineering (IBSE), University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| |
Collapse
|
4
|
Zhao Y, Yang Y, Dong F, Dai Q. The characteristics of nano-micron calcite particles/common bacteria complex and its interfacial interaction. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27522-z. [PMID: 37178294 PMCID: PMC10182550 DOI: 10.1007/s11356-023-27522-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 03/07/2023] [Indexed: 05/15/2023]
Abstract
Based on the composite pollution of atmospheric microbial aerosol, this paper selects the calcite/bacteria complex as the research object which was prepared by calcite particles and two common strains of bacteria (Escherichia coli, Staphylococcus aureus) in the solution system. The morphology, particle size, surface potential, and surface groups of the complex were explored by modern analysis and testing methods, with an emphasis on the interfacial interaction between calcite and bacteria. The SEM, TEM, and CLSM results showed that the morphology of the complex could be divided into three types: bacteria adhering to the surface or edge of micro-CaCO3, bacteria aggregating with nano-CaCO3, and single nano-CaCO3 wrapping bacteria. The complex's particle size was about 2.07 ~ 192.4 times larger than the original mineral particles, and the nano-CaCO3/bacteria complex's particle size variation was caused by the fact that nano-CaCO3 has agglomeration in solution. The surface potential of the micro-CaCO3/bacteria complex (isoelectric point pH = 3.0) lies between micro-CaCO3 and bacteria, while the surface potential of the nano-CaCO3/bacteria complex (isoelectric point pH = 2.0) approaches the nano-CaCO3. The complex's surface groups were based primarily on the infrared characteristics of calcite particles, accompanied by the infrared characteristics of bacteria, displaying the interfacial interaction from the protein, polysaccharides, and phosphodiester groups of bacteria. The interfacial action of the micro-CaCO3/bacteria complex is mainly driven by electrostatic attraction and hydrogen bonding force, while the nano-CaCO3/bacteria complex is guided by surface complexation and hydrogen bonding force. The increase in the β-fold/α-helix ratio of the calcite/S. aureus complex indicated that the secondary structure of bacterial surface proteins was more stable and the hydrogen bond effect was strong than the calcite/E. coli complex. The findings are expected to provide basic data for the mechanism research of atmospheric composite particles closer to the real environment.
Collapse
Affiliation(s)
- Yulian Zhao
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang City, 621010, Sichuan, China
| | - Yujie Yang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang City, 621010, Sichuan, China
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang City, 621010, Sichuan, China.
| | - Qunwei Dai
- Fundamental Science On Nuclear Waste and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang City, 621010, Sichuan, China
| |
Collapse
|
5
|
Song M, Lei Y, Ali A, Xu Y, Sheng K, Huang T, Huang J, Huang M. Inhibitory effect of licorice extract on the germination and outgrowth of Paraclostridium bifermentans spores. Front Microbiol 2022; 13:1076144. [PMID: 36532483 PMCID: PMC9755857 DOI: 10.3389/fmicb.2022.1076144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/09/2022] [Indexed: 03/26/2024] Open
Abstract
INTRODUCTION Paraclostridium bifermentans is responsible for spoilage properties in vacuum-packaged meat. Ordinary heat treatment techniques are ineffective to control the extremely heat-resistant spores of P. bifermentans. Therefore, finding a new strategy to prevent the contamination of P. bifermentans spores in vacuum-packaged meat is challenging. METHODS In this study, P. bifermentans was isolated from the vacuum-packaged chicken, and the inhibitory effects of licorice extract on the germination and outgrowth of P. bifermentans spores, as well as the key bioactive components in the licorice extract involved in inhibiting spore activity, were investigated. RESULTS The spores induced by combination-nutrient-germinant (150 mmol/L L-alanine and 20 mmol/L inosine, co-AI) did not germinate when the concentration of licorice extract was ≥ 3.13 mg/ml. The germination of P. bifermentans spores induced by non-nutrient-germinant (8 mmol/L dipicolinic acid, DPA) was completely prevented by licorice extract at least 1.56 mg/ml. While the outgrowth of P. bifermentans spores was inhibited at a concentration of 0.39 mg/ml. Licorice extract did not seem to damage the non-germinated spores but blocked the germinant sensing. Licorice extract prevented the outgrowing spores from becoming vegetable cells by disrupting the inner membrane. Furthermore, the results obtained from LC-MS data analysis exhibited 15 key bioactive compounds in licorice extract, such as glycyrrhizic acid, liquiritin, etc. Among them, glycyrrhizic acid and liquiritin apioside exerted efficient inhibitory properties on the germination and outgrowth of P. bifermentans spores. DISCUSSION This present study demonstrated that licorice extract can be used as a promising inhibitor of spores and provides a new method to control the residual P. bifermentans spores in meat products. Meanwhile, this study exhibits a baseline for the better understanding of the potential application of licorice extracts to control the P. bifermentans spores in meat products.
Collapse
Affiliation(s)
- Mengmeng Song
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yang Lei
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Ahtisham Ali
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yan Xu
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Kairan Sheng
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Tianran Huang
- Jiangsu Research Center for Livestock and Poultry Products Processing Engineering Technology, Nanjing Huangjiaoshou Food Science and Technology Co., Ltd., Nanjing, China
| | - Jichao Huang
- College of Engineering, Nanjing Agricultural University, Nanjing, China
| | - Ming Huang
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
6
|
Hou J, Shao G, Adyel TM, Li C, Liu Z, Liu S, Miao L. Can the carbon metabolic activity of biofilm be regulated by the hydrodynamic conditions in urban rivers? THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 832:155082. [PMID: 35398435 DOI: 10.1016/j.scitotenv.2022.155082] [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: 12/19/2021] [Revised: 04/02/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
Hydrodynamic regulation is widely used to improve the water quality of urban rivers. However, it is yet to explore substantially whether hydrodynamics could regulate the metabolic activity of biofilm in such aquatic systems. Herein, the pilot experiment of hydrodynamics in the rotation tanks was designed, including two experiment phases, namely constant flow and adjusting flow for 21 days and 14 days, respectively. In constant flow phase, biofilms grew in five shear stress gradients (R1-R5, 0.0044- 0.12 Pa). The carbon metabolic rate (k) of mature biofilms evaluated by BIOLOG ECO microplates showed a hump-shaped relationship with increasing shear stress, with R3 (0.049 Pa) the highest, while R5 (0.12 Pa) the lowest. To verify whether the metabolic activity of biofilm cultured at constant flow phase can be regulated by shear stress, we initiated the adjusting flow phase, and shear stress in reactors was reset uniformly at 0.049 Pa (with the highest k). Results showed the carbon metabolic activity of biofilm in reactor R4 and R5 increased rapidly by day 3, and there was no significant difference between the carbon metabolic rates among the five treatments by day 14. Meanwhile, the utilization levels of polymers and carbohydrates by biofilms were significantly different among the five treatments after hydrodynamic regulations. These results suggested that the total carbon metabolic activity of biofilm can be regulated by hydrodynamics, while the divergent changes of the specific carbon source category might affect the biofilm-mediated carbon biogeochemical processes, which should be considered for the application of hydrodynamic regulation in river ecological restoration projects.
Collapse
Affiliation(s)
- Jun Hou
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China
| | - Guoyi Shao
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China
| | - Tanveer M Adyel
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Melbourne, VIC 3125, Australia
| | - Chaoran Li
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China
| | - Zhilin Liu
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China
| | - Songqi Liu
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China
| | - Lingzhan Miao
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China; State Key Lab Hydraul & Mt River Engn, Sichuan University, Chengdu, Sichuan, 610065, PR China.
| |
Collapse
|
7
|
Jiang W, Gao H, Sun J, Yang X, Jiang Y, Zhang W, Jiang M, Xin F. Current status, challenges and prospects for lignin valorization by using Rhodococcus sp. Biotechnol Adv 2022; 60:108004. [PMID: 35690272 DOI: 10.1016/j.biotechadv.2022.108004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/30/2022] [Accepted: 06/03/2022] [Indexed: 11/18/2022]
Abstract
Lignin represents the most abundant renewable aromatics in nature, which has complicated and heterogeneous structure. The rapid development of biotransformation technology has brought new opportunities to achieve the complete lignin valorization. Especially, Rhodococcus sp. possesses excellent capabilities to metabolize aromatic hydrocarbons degraded from lignin. Furthermore, it can convert these toxic compounds into high value added bioproducts, such as microbial lipids, polyhydroxyalkanoate and carotenoid et al. Accordingly, this review will discuss the potentials of Rhodococcus sp. as a cell factory for lignin biotransformation, including phenol tolerance, lignin depolymerization and lignin-derived aromatic hydrocarbon metabolism. The detailed metabolic mechanism for lignin biotransformation and bioproducts spectrum of Rhodococcus sp. will be comprehensively discussed. The available molecular tools for the conversion of lignin by Rhodococcus sp. will be reviewed, and the possible direction for lignin biotransformation in the future will also be proposed.
Collapse
Affiliation(s)
- Wankui Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Haiyan Gao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jingxiang Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Xinyi Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Yujia Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Wenming Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China.
| | - Min Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China.
| | - Fengxue Xin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China.
| |
Collapse
|
8
|
Ivshina I, Bazhutin G, Tyan S, Polygalov M, Subbotina M, Tyumina E. Cellular Modifications of Rhodococci Exposed to Separate and Combined Effects of Pharmaceutical Pollutants. Microorganisms 2022; 10:microorganisms10061101. [PMID: 35744619 PMCID: PMC9227840 DOI: 10.3390/microorganisms10061101] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/23/2022] [Accepted: 05/23/2022] [Indexed: 01/10/2023] Open
Abstract
Actinomycetes of the genus Rhodococcus (class Actinomycetia) are dominant dwellers of biotopes with anthropogenic load. They serve as a natural system of primary response to xenobiotics in open ecosystems, initiate defensive responses in the presence of pollutants, and are regarded as ideal agents capable of transforming and degrading pharmaceuticals. Here, the ability of selected Rhodococcus strains to co-metabolize nonsteroidal anti-inflammatory drugs (ibuprofen, meloxicam, and naproxen) and information on the protective mechanisms of rhodococci against toxic effects of pharmaceuticals, individually or in a mixture, have been demonstrated. For the first time, R. ruber IEGM 439 provided complete decomposition of 100 mg/L meloxicam after seven days. It was shown that versatile cellular modifications occurring at the early development stages of nonspecific reactions of Rhodococcus spp. in response to separate and combined effects of the tested pharmaceuticals included changes in electrokinetic characteristics and catalase activity; transition from unicellular to multicellular life forms accompanied by pronounced morphological abnormalities; changes in the average size of vegetative cells and surface area-to-volume ratio; and the formation of linked cell assemblages. The obtained data are considered as adaptation mechanisms in rhodococci, and consequently their increased resistance to separate and combined effects of ibuprofen, meloxicam, and naproxen.
Collapse
Affiliation(s)
- Irina Ivshina
- Perm Federal Research Center Ural Branch Russian Academy of Sciences, 13a Lenin Street, 614990 Perm, Russia; (G.B.); (M.P.); (M.S.); (E.T.)
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Street, 614990 Perm, Russia;
- Correspondence:
| | - Grigory Bazhutin
- Perm Federal Research Center Ural Branch Russian Academy of Sciences, 13a Lenin Street, 614990 Perm, Russia; (G.B.); (M.P.); (M.S.); (E.T.)
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Street, 614990 Perm, Russia;
| | - Semyon Tyan
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Street, 614990 Perm, Russia;
| | - Maxim Polygalov
- Perm Federal Research Center Ural Branch Russian Academy of Sciences, 13a Lenin Street, 614990 Perm, Russia; (G.B.); (M.P.); (M.S.); (E.T.)
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Street, 614990 Perm, Russia;
| | - Maria Subbotina
- Perm Federal Research Center Ural Branch Russian Academy of Sciences, 13a Lenin Street, 614990 Perm, Russia; (G.B.); (M.P.); (M.S.); (E.T.)
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Street, 614990 Perm, Russia;
| | - Elena Tyumina
- Perm Federal Research Center Ural Branch Russian Academy of Sciences, 13a Lenin Street, 614990 Perm, Russia; (G.B.); (M.P.); (M.S.); (E.T.)
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Street, 614990 Perm, Russia;
| |
Collapse
|
9
|
Kuyukina MS, Glebov GG, Ivshina IB. Effects of Nickel Nanoparticles on Rhodococcus Cell Surface Morphology and Nanomechanical Properties. NANOMATERIALS 2022; 12:nano12060951. [PMID: 35335763 PMCID: PMC8955278 DOI: 10.3390/nano12060951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/09/2022] [Accepted: 03/11/2022] [Indexed: 12/10/2022]
Abstract
Nickel nanoparticles (NPs) are used for soil remediation and wastewater treatment due to their high adsorption capacity against complex organic pollutants. However, despite the growing use of nickel NPs, their toxicological towards environmental bacteria have not been sufficiently studied. Actinobacteria of the genus Rhodococcus are valuable bioremediation agents degrading a range of harmful and recalcitrant chemicals. Both positive and negative effects of metal ions and NPs on the biodegradation of organic pollutants by Rhodococcus were revealed, however, the mechanisms of such interactions, in addition to direct toxic effects, remain unclear. In the present work, the influence of nickel NPs on the viability, surface topology and nanomechanical properties of Rhodococcus cells have been studied. Bacterial adaptations to high (up to 1.0 g/L) concentrations of nickel NPs during prolonged (24 and 48 h) exposure were detected using combined confocal laser scanning and atomic force microscopy. Incubation with nickel NPs resulted in a 1.25–1.5-fold increase in the relative surface area and roughness, changes in cellular charge and adhesion characteristics, as well as a 2–8-fold decrease in the Young’s modulus of Rhodococcus ruber IEGM 231 cells. Presumably, the treatment of rhodococcal cells with sublethal concentrations (0.01–0.1 g/L) of nickel NPs facilitates the colonization of surfaces, which is important in the production of immobilized biocatalysts based on whole bacterial cells adsorbed on solid carriers. Based on the data obtained, cell surface functionalizing with NPs is possible to enhance adhesive and catalytic properties of bacteria suitable for environmental applications.
Collapse
Affiliation(s)
- Maria S. Kuyukina
- Microbiology and Immunology Department, Perm State University, 614990 Perm, Russia; (G.G.G.); (I.B.I.)
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, 614081 Perm, Russia
- Correspondence:
| | - Grigorii G. Glebov
- Microbiology and Immunology Department, Perm State University, 614990 Perm, Russia; (G.G.G.); (I.B.I.)
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, 614081 Perm, Russia
| | - Irena B. Ivshina
- Microbiology and Immunology Department, Perm State University, 614990 Perm, Russia; (G.G.G.); (I.B.I.)
- Institute of Ecology and Genetics of Microorganisms, Perm Federal Research Center, Russian Academy of Sciences, 614081 Perm, Russia
| |
Collapse
|
10
|
Ivshina IB, Kuyukina MS, Krivoruchko AV, Tyumina EA. Responses to Ecopollutants and Pathogenization Risks of Saprotrophic Rhodococcus Species. Pathogens 2021; 10:974. [PMID: 34451438 PMCID: PMC8398200 DOI: 10.3390/pathogens10080974] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 11/17/2022] Open
Abstract
Under conditions of increasing environmental pollution, true saprophytes are capable of changing their survival strategies and demonstrating certain pathogenicity factors. Actinobacteria of the genus Rhodococcus, typical soil and aquatic biotope inhabitants, are characterized by high ecological plasticity and a wide range of oxidized organic substrates, including hydrocarbons and their derivatives. Their cell adaptations, such as the ability of adhering and colonizing surfaces, a complex life cycle, formation of resting cells and capsule-like structures, diauxotrophy, and a rigid cell wall, developed against the negative effects of anthropogenic pollutants are discussed and the risks of possible pathogenization of free-living saprotrophic Rhodococcus species are proposed. Due to universal adaptation features, Rhodococcus species are among the candidates, if further anthropogenic pressure increases, to move into the group of potentially pathogenic organisms with "unprofessional" parasitism, and to join an expanding list of infectious agents as facultative or occasional parasites.
Collapse
Affiliation(s)
- Irina B. Ivshina
- Perm Federal Research Center UB RAS, Institute of Ecology and Genetics of Microorganisms UB RAS, 13 Golev Str., 614081 Perm, Russia; (M.S.K.); (A.V.K.); (E.A.T.)
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
| | - Maria S. Kuyukina
- Perm Federal Research Center UB RAS, Institute of Ecology and Genetics of Microorganisms UB RAS, 13 Golev Str., 614081 Perm, Russia; (M.S.K.); (A.V.K.); (E.A.T.)
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
| | - Anastasiia V. Krivoruchko
- Perm Federal Research Center UB RAS, Institute of Ecology and Genetics of Microorganisms UB RAS, 13 Golev Str., 614081 Perm, Russia; (M.S.K.); (A.V.K.); (E.A.T.)
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
| | - Elena A. Tyumina
- Perm Federal Research Center UB RAS, Institute of Ecology and Genetics of Microorganisms UB RAS, 13 Golev Str., 614081 Perm, Russia; (M.S.K.); (A.V.K.); (E.A.T.)
- Department of Microbiology and Immunology, Perm State University, 15 Bukirev Str., 614990 Perm, Russia
| |
Collapse
|
11
|
Miranda A, Gómez-Varela AI, Stylianou A, Hirvonen LM, Sánchez H, De Beule PAA. How did correlative atomic force microscopy and super-resolution microscopy evolve in the quest for unravelling enigmas in biology? NANOSCALE 2021; 13:2082-2099. [PMID: 33346312 DOI: 10.1039/d0nr07203f] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
With the invention of the Atomic Force Microscope (AFM) in 1986 and the subsequent developments in liquid imaging and cellular imaging it became possible to study the topography of cellular specimens under nearly physiological conditions with nanometric resolution. The application of AFM to biological research was further expanded with the technological advances in imaging modes where topographical data can be combined with nanomechanical measurements, offering the possibility to retrieve the biophysical properties of tissues, cells, fibrous components and biomolecules. Meanwhile, the quest for breaking the Abbe diffraction limit restricting microscopic resolution led to the development of super-resolution fluorescence microscopy techniques that brought the resolution of the light microscope comparable to the resolution obtained by AFM. The instrumental combination of AFM and optical microscopy techniques has evolved over the last decades from integration of AFM with bright-field and phase-contrast imaging techniques at first to correlative AFM and wide-field fluorescence systems and then further to the combination of AFM and fluorescence based super-resolution microscopy modalities. Motivated by the many developments made over the last decade, we provide here a review on AFM combined with super-resolution fluorescence microscopy techniques and how they can be applied for expanding our understanding of biological processes.
Collapse
Affiliation(s)
- Adelaide Miranda
- International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga, Portugal.
| | - Ana I Gómez-Varela
- International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga, Portugal. and Department of Applied Physics, University of Santiago de Compostela, E-15782, Santiago de Compostela, Spain.
| | - Andreas Stylianou
- Cancer Biophysics Laboratory, University of Cyprus, Nicosia, Cyprus and School of Sciences, European University Cyprus, Nicosia, Cyprus
| | - Liisa M Hirvonen
- Centre for Microscopy, Characterisation and Analysis (CMCA), The University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia
| | - Humberto Sánchez
- Faculty of Applied Sciences, Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2629 HZ, Delft, The Netherlands
| | - Pieter A A De Beule
- International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga, Portugal.
| |
Collapse
|
12
|
Pátek M, Grulich M, Nešvera J. Stress response in Rhodococcus strains. Biotechnol Adv 2021; 53:107698. [PMID: 33515672 DOI: 10.1016/j.biotechadv.2021.107698] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 12/13/2022]
Abstract
Rhodococci are bacteria which can survive under various extreme conditions, in the presence of toxic compounds, and in other hostile habitats. Their tolerance of unfavorable conditions is associated with the structure of their cell wall and their large array of enzymes, which degrade or detoxify harmful compounds. Their physiological and biotechnological properties, together with tools for their genetic manipulation, enable us to apply them in biotransformations, biodegradation and bioremediation. Many such biotechnological applications cause stresses that positively or negatively affect their efficiency. Whereas numerous reviews on rhodococci described their enzyme activities, the optimization of degradation or production processes, and corresponding technological solutions, only a few reviews discussed some specific effects of stresses on the physiology of rhodococci and biotechnological processes. This review aims to comprehensively describe individual stress responses in Rhodococcus strains, the interconnection of different types of stresses and their consequences for cell physiology. We examine here the responses to (1) environmental stresses (desiccation, heat, cold, osmotic and pH stress), (2) the presence of stress-inducing compounds (metals, organic compounds and antibiotics) in the environment (3) starvation and (4) stresses encountered during biotechnological applications. Adaptations of the cell envelope, the formation of multicellular structures and stresses induced by the interactions of hosts with pathogenic rhodococci are also included. The roles of sigma factors of RNA polymerase in the global regulation of stress responses in rhodococci are described as well. Although the review covers a large number of stressful conditions, our intention was to provide an overview of the selected stress responses and their possible connection to biotechnological processes, not an exhaustive survey of the scientific literature. The findings on stress responses summarized in this review and the demonstration of gaps in current knowledge may motivate researchers working to fill these gaps.
Collapse
Affiliation(s)
- Miroslav Pátek
- Institute of Microbiology of the CAS, v. v. i., Prague, Czech Republic.
| | - Michal Grulich
- Institute of Microbiology of the CAS, v. v. i., Prague, Czech Republic.
| | - Jan Nešvera
- Institute of Microbiology of the CAS, v. v. i., Prague, Czech Republic.
| |
Collapse
|
13
|
A Multi-Scale Approach to Investigate Adhesion Properties of Pseudomonas aeruginosa PAO1 to Geotrichum candidum LG-8, a Potential Probiotic Yeast. Foods 2020; 9:foods9070912. [PMID: 32664462 PMCID: PMC7405016 DOI: 10.3390/foods9070912] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 01/18/2023] Open
Abstract
This study investigated properties of Pseudomonas aeruginosa PAO1 adhesion to Geotrichum candidum LG-8 cells in variable pH and salt conditions. The primary mechanism was revealed by multi-scale microscopy technics. The adhesion of PAO1 to the living fungus occurred within 1 h and was limited at concentrations of bile salts higher than 0.5%. The adhesion efficiency gradually increased to 58.1% with the pH increasing from 2.0 to 7.0 and then decreased to 48.2% at pH 9.0. However, the dead LG-8 has an advantage over the living ones to adhere PAO1 in same pH and bile salt conditions. Optical microscopy showed that both unsterilized and sterilized G. candidum LG-8 cells removed approximately one hundred fold bacteria in 4 h. Laser scanning confocal microscopy (LSCM) analysis indicated that polysaccharides of the fungus contributed to adhesion. Scanning electron microscopy (SEM) analysis proved that syrup-like EPS (extracellular polymeric substances) of LG-8 coating PAO1 was in part a mechanism. Atomic force microscopy (AFM) showed roughness of the LG-8 surface changed in the adhesion process. Furthermore, a pedestal-like structure of bacteria was observed by transmission electron microscopy (TEM) analysis, indicating that the bacteria were also actively involved in the adhesion process. G. candidum LG-8 is a potential candidate for the control of P. aeruginosa PAO1 in the food industry and immunodeficiency patients.
Collapse
|
14
|
Modification of the Bacterial Cell Wall—Is the Bioavailability Important in Creosote Biodegradation? Processes (Basel) 2020. [DOI: 10.3390/pr8020147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Creosote oil, widely used as a wood preservative, is a complex mixture of different polycyclic aromatic compounds. The soil contamination result in the presence of a specific microcosm. The presented study focuses on the most active strains involved in bioremediation of long-term creosote-contaminated soil. In three soil samples from different boreholes, two Sphingomonas maltophilia (S. maltophilia) and one Paenibacillus ulginis (P. ulginis) strain were isolated. The conducted experiments showed the differences and similarities between the bacteria strains capable of degrading creosote from the same contaminated area. Both S. maltophilia strains exhibit higher biodegradation efficiency (over 50% after 28 days) and greater increase in glutathione S-transferase activity than P. ulginis ODW 5.9. However, S. maltophilia ODW 3.7 and P. ulginis ODW 5.9 were different from the third of the tested strains. The growth of the former two on creosote resulted in an increase in cell adhesion to Congo red and in the total membrane permeability. Nevertheless, all three strains have shown a decrease in the permeability of the inner cell membrane. That suggests the complex relationship between the cell surface modifications and bioavailability of the creosote to microorganisms. The conducted research allowed us to broaden the current knowledge about the creosote bioremediation and the properties of microorganisms involved in the process.
Collapse
|
15
|
Visser MJ, Pretorius E. Atomic Force Microscopy: The Characterisation of Amyloid Protein Structure in Pathology. Curr Top Med Chem 2020; 19:2958-2973. [DOI: 10.2174/1568026619666191121143240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/24/2019] [Accepted: 09/27/2019] [Indexed: 12/28/2022]
Abstract
:
Proteins are versatile macromolecules that perform a variety of functions and participate in
virtually all cellular processes. The functionality of a protein greatly depends on its structure and alterations
may result in the development of diseases. Most well-known of these are protein misfolding disorders,
which include Alzheimer’s and Parkinson’s diseases as well as type 2 diabetes mellitus, where
soluble proteins transition into insoluble amyloid fibrils. Atomic Force Microscopy (AFM) is capable of
providing a topographical map of the protein and/or its aggregates, as well as probing the nanomechanical
properties of a sample. Moreover, AFM requires relatively simple sample preparation, which presents
the possibility of combining this technique with other research modalities, such as confocal laser
scanning microscopy, Raman spectroscopy and stimulated emission depletion microscopy. In this review,
the basic principles of AFM are discussed, followed by a brief overview of how it has been applied
in biological research. Finally, we focus specifically on its use as a characterisation method to
study protein structure at the nanoscale in pathophysiological conditions, considering both molecules
implicated in disease pathogenesis and the plasma protein fibrinogen. In conclusion, AFM is a userfriendly
tool that supplies multi-parametric data, rendering it a most valuable technique.
Collapse
Affiliation(s)
- Maria J.E. Visser
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1 Matieland, 7602, South Africa
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1 Matieland, 7602, South Africa
| |
Collapse
|
16
|
Wang Z, Zhu X, Su Y, Xu W, Liu H, Liu Z, Chen W, Wang J. Dimethyl phthalate damaged the cell membrane of Escherichia coli K12. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 180:208-214. [PMID: 31096126 DOI: 10.1016/j.ecoenv.2019.05.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/25/2019] [Accepted: 05/02/2019] [Indexed: 05/22/2023]
Abstract
Dimethyl phthalate (DMP), a phthalate ester (PAE), is a ubiquitous and organic pollutant. In this study, the toxicity of DMP to Escherichia coli K12 and its underlying mechanism were investigated. The results showed that DMP inhibited the growth of E. coli K12 and induced cell inactivation and/or death. DMP caused serious damage to the cell membrane of E. coli K12, and the damage increased with higher DMP concentrations. DMP exposure disrupted cell membranes, as evidenced by dose-dependent variations of cell structures, surface properties, and membrane compositions. Increases in the malondialdehyde (MDA) content indicated an increase in oxidative stress induced by DMP in E. coli K12. The activity of succinic dehydrogenase (SDH) was changed by DMP, which could affect energy metabolism in the membrane of E. coli K12. The expression levels of OmpA and OmpX were increased, and the expression levels of OmpF and OmpW were decreased, in E. coli K12 exposed to DMP. The toxicities of DMP to E. coli K12 could be ascribed to membrane disruption and oxidative stress-induced cell inactivation and/or death. The outcomes will shed new light on the assessment of the ecological effects of DMP.
Collapse
Affiliation(s)
- Zhigang Wang
- School of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, Heilongjiang, 161006, China
| | - Xiaohui Zhu
- School of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, Heilongjiang, 161006, China
| | - Yunpeng Su
- School of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, Heilongjiang, 161006, China
| | - Weihui Xu
- School of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, Heilongjiang, 161006, China.
| | - Hong Liu
- School of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, Heilongjiang, 161006, China
| | - Zeping Liu
- School of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, Heilongjiang, 161006, China
| | - Wenjing Chen
- School of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar, Heilongjiang, 161006, China
| | - Junhe Wang
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, Heilongjiang, 161006, China
| |
Collapse
|
17
|
Stylianou A, Kontomaris SV, Grant C, Alexandratou E. Atomic Force Microscopy on Biological Materials Related to Pathological Conditions. SCANNING 2019; 2019:8452851. [PMID: 31214274 PMCID: PMC6535871 DOI: 10.1155/2019/8452851] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/23/2019] [Accepted: 03/07/2019] [Indexed: 05/16/2023]
Abstract
Atomic force microscopy (AFM) is an easy-to-use, powerful, high-resolution microscope that allows the user to image any surface and under any aqueous condition. AFM has been used in the investigation of the structural and mechanical properties of a wide range of biological matters including biomolecules, biomaterials, cells, and tissues. It provides the capacity to acquire high-resolution images of biosamples at the nanoscale and allows at readily carrying out mechanical characterization. The capacity of AFM to image and interact with surfaces, under physiologically relevant conditions, is of great importance for realistic and accurate medical and pharmaceutical applications. The aim of this paper is to review recent trends of the use of AFM on biological materials related to health and sickness. First, we present AFM components and its different imaging modes and we continue with combined imaging and coupled AFM systems. Then, we discuss the use of AFM to nanocharacterize collagen, the major fibrous protein of the human body, which has been correlated with many pathological conditions. In the next section, AFM nanolevel surface characterization as a tool to detect possible pathological conditions such as osteoarthritis and cancer is presented. Finally, we demonstrate the use of AFM for studying other pathological conditions, such as Alzheimer's disease and human immunodeficiency virus (HIV), through the investigation of amyloid fibrils and viruses, respectively. Consequently, AFM stands out as the ideal research instrument for exploring the detection of pathological conditions even at very early stages, making it very attractive in the area of bio- and nanomedicine.
Collapse
Affiliation(s)
- Andreas Stylianou
- Cancer Biophysics Laboratory, Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia 2238, Cyprus
| | - Stylianos-Vasileios Kontomaris
- Mobile Radio Communications Laboratory, School of Electrical and Computer Engineering, National Technical University of Athens, Iroon Polytechniou, Athens 15780, Greece
- Athens Metropolitan College, Sorou 74, Marousi 15125, Greece
| | - Colin Grant
- Hitachi High-Technologies Europe, Techspace One, Keckwick Lane, Warrington WA4 4AB, UK
| | - Eleni Alexandratou
- Biomedical Optics and Applied Biophysics Laboratory, School of Electrical and Computer Engineering, National Technical University of Athens, Iroon Polytechniou, Athens 15780, Greece
| |
Collapse
|
18
|
Bhat SV, Sultana T, Körnig A, McGrath S, Shahina Z, Dahms TES. Correlative atomic force microscopy quantitative imaging-laser scanning confocal microscopy quantifies the impact of stressors on live cells in real-time. Sci Rep 2018; 8:8305. [PMID: 29844489 PMCID: PMC5973941 DOI: 10.1038/s41598-018-26433-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 05/04/2018] [Indexed: 11/14/2022] Open
Abstract
There is an urgent need to assess the effect of anthropogenic chemicals on model cells prior to their release, helping to predict their potential impact on the environment and human health. Laser scanning confocal microscopy (LSCM) and atomic force microscopy (AFM) have each provided an abundance of information on cell physiology. In addition to determining surface architecture, AFM in quantitative imaging (QI) mode probes surface biochemistry and cellular mechanics using minimal applied force, while LSCM offers a window into the cell for imaging fluorescently tagged macromolecules. Correlative AFM-LSCM produces complimentary information on different cellular characteristics for a comprehensive picture of cellular behaviour. We present a correlative AFM-QI-LSCM assay for the simultaneous real-time imaging of living cells in situ, producing multiplexed data on cell morphology and mechanics, surface adhesion and ultrastructure, and real-time localization of multiple fluorescently tagged macromolecules. To demonstrate the broad applicability of this method for disparate cell types, we show altered surface properties, internal molecular arrangement and oxidative stress in model bacterial, fungal and human cells exposed to 2,4-dichlorophenoxyacetic acid. AFM-QI-LSCM is broadly applicable to a variety of cell types and can be used to assess the impact of any multitude of contaminants, alone or in combination.
Collapse
Affiliation(s)
- Supriya V Bhat
- Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, SK, S4S 0A2, Canada
| | - Taranum Sultana
- Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, SK, S4S 0A2, Canada
| | - André Körnig
- JPK Instruments, JPK Instruments AG, Colditzstr. 34-36, 12099, Berlin, Germany
| | - Seamus McGrath
- Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, SK, S4S 0A2, Canada
| | - Zinnat Shahina
- Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, SK, S4S 0A2, Canada
| | - Tanya E S Dahms
- Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, SK, S4S 0A2, Canada.
| |
Collapse
|
19
|
Cheremnykh KM, Luchnikova NA, Grishko VV, Ivshina IB. Bioconversion of ecotoxic dehydroabietic acid using Rhodococcus actinobacteria. JOURNAL OF HAZARDOUS MATERIALS 2018; 346:103-112. [PMID: 29253749 DOI: 10.1016/j.jhazmat.2017.12.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 12/06/2017] [Accepted: 12/08/2017] [Indexed: 06/07/2023]
Abstract
Actinobactrial strains Rhodococcus erythropolis IEGM 267 and R. rhodochrous IEGM 107 were used to study biodegradation of dehydroabietic acid (DHA), a toxic tricyclic diterpenoid. The experiments were carried out in batch cultures of pre-grown rhodococci in the presence of 0.1% (v/v) n-hexadecane under aerobic conditions for 7 days. It was shown that R. erythropolis IEGM 267 and R. rhodochrous IEGM 107 partially and completely degraded DHA (500 mg/L), respectively. Characteristic physicochemical (reduced zeta potential) and morphological-physiological (increased average size of single cells and cell aggregates, increased root-mean-square roughness) changes in DHA-exposed actinobacteria were revealed. Products of DHA bioconversion by R. erythropolis IEGM 267 were analyzed and exhibited a previously unidentified metabolite 5α-hydroxy-abieta-8,11,13-triene-18-oat. The obtained experimental data widen the knowledge on the catalytic activity of rhodococci and their possible contribution to decontamination of natural ecosystems from pollutants.
Collapse
Affiliation(s)
- Kseniya M Cheremnykh
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, 13 Golev Str., 614081, Perm, Russia; Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Str., 614990, Perm, Russia.
| | - Natalia A Luchnikova
- Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Str., 614990, Perm, Russia.
| | - Victoria V Grishko
- Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences, 3 Ak. Korolev Str., 614013 Perm, Russia.
| | - Irina B Ivshina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, 13 Golev Str., 614081, Perm, Russia; Department of Microbiology and Immunology, Perm State National Research University, 15 Bukirev Str., 614990, Perm, Russia.
| |
Collapse
|
20
|
Westmeier D, Hahlbrock A, Reinhardt C, Fröhlich-Nowoisky J, Wessler S, Vallet C, Pöschl U, Knauer SK, Stauber RH. Nanomaterial–microbe cross-talk: physicochemical principles and (patho)biological consequences. Chem Soc Rev 2018; 47:5312-5337. [DOI: 10.1039/c6cs00691d] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
NPs’ characteristics impact their spontaneous binding to microbes, which may affect the (patho)biological identity of both NP and microbes.
Collapse
Affiliation(s)
- D. Westmeier
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| | - A. Hahlbrock
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| | - C. Reinhardt
- Center for Thrombosis and Hemostasis
- University Medical Center Mainz
- 55101 Mainz
- Germany
| | - J. Fröhlich-Nowoisky
- Multiphase Chemistry Department
- Max Planck Institute for Chemistry
- 55128 Mainz
- Germany
| | - S. Wessler
- Department of Molecular Biology
- Paris-Lodron University of Salzburg
- A-5020 Salzburg
- Austria
| | - C. Vallet
- Institute for Molecular Biology
- CENIDE
- University Duisburg-Essen
- 45117 Essen
- Germany
| | - U. Pöschl
- Multiphase Chemistry Department
- Max Planck Institute for Chemistry
- 55128 Mainz
- Germany
| | - S. K. Knauer
- Institute for Molecular Biology
- CENIDE
- University Duisburg-Essen
- 45117 Essen
- Germany
| | - R. H. Stauber
- Department of Nanobiomedicine/ENT
- University Medical Center of Mainz
- 55101 Mainz
- Germany
| |
Collapse
|
21
|
Maksimova AV, Kuznetsova MV, Demakov VA. The impact of synthetic nitriles on the morphology and viability of some bacterial species. BIOL BULL+ 2017. [DOI: 10.1134/s106235901605006x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
22
|
Korshunova IO, Pistsova ON, Kuyukina MS, Ivshina IB. The effect of organic solvents on the viability and morphofunctional properties of rhodococcus. APPL BIOCHEM MICRO+ 2016. [DOI: 10.1134/s0003683816010075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
23
|
Hoseinzadeh E, Makhdoumi P, Taha P, Hossini H, Pirsaheb M, Omid Rastegar S, Stelling J. A review of available techniques for determination of nano-antimicrobials activity. TOXIN REV 2016. [DOI: 10.1080/15569543.2016.1237527] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
24
|
Yeom JH, Lee B, Kim D, Lee JK, Kim S, Bae J, Park Y, Lee K. Gold nanoparticle-DNA aptamer conjugate-assisted delivery of antimicrobial peptide effectively eliminates intracellular Salmonella enterica serovar Typhimurium. Biomaterials 2016; 104:43-51. [PMID: 27424215 DOI: 10.1016/j.biomaterials.2016.07.009] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 11/24/2022]
Abstract
Antimicrobial peptides (AMPs) are a promising new class of antibacterial compounds. However, their applications in the treatment of intracellular pathogenic bacteria have been limited by their in vivo instability and low penetrating ability into mammalian cells. Here, we report that gold nanoparticles conjugated with DNA aptamer (AuNP-Apt) efficiently delivered AMPs into mammalian living systems with enhanced stability of the AMPs. C-terminally hexahistidine-tagged A3-APO (A3-APO(His)) AMPs were loaded onto AuNPs conjugated with His-tag DNA aptamer (AuNP-Apt(His)) by simple mixing and were delivered into Salmonella enterica serovar Typhimurium (S. Typhimurium)-infected HeLa cells, resulting in the increased viability of host cells due to the elimination of intracellular S. Typhimurium cells. Furthermore, the intravenous injection of AuNP-Apt(His) loaded with A3-APO(His) into S. Typhimurium-infected mice resulted in a complete inhibition of S. Typhimurium colonization in the mice organs, leading to 100% survival of the mice. Therefore, AuNP-Apt(His) can serve as an innovative platform for AMP therapeutics to treat intracellular bacterial infections in mammals.
Collapse
Affiliation(s)
- Ji-Hyun Yeom
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Boeun Lee
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Daeyoung Kim
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jong-Kook Lee
- Department of Biomedical Science, Chosun University, Gwangju 61452, Republic of Korea
| | - Suk Kim
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jeehyeon Bae
- School of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea.
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju 61452, Republic of Korea.
| | - Kangseok Lee
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea.
| |
Collapse
|
25
|
Investigation of the characteristics of biofilms grown in gas-phase biofilters with and without ozone injection by CLSM technique. Appl Microbiol Biotechnol 2015; 100:2023-2031. [DOI: 10.1007/s00253-015-7100-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/12/2015] [Accepted: 10/14/2015] [Indexed: 10/22/2022]
|