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Milano F, Giotta L, Lambreva MD. Perspectives on nanomaterial-empowered bioremediation of heavy metals by photosynthetic microorganisms. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 216:109090. [PMID: 39243581 DOI: 10.1016/j.plaphy.2024.109090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 07/05/2024] [Accepted: 09/02/2024] [Indexed: 09/09/2024]
Abstract
Environmental remediation of heavy metals (HMs) is a crucial aspect of sustainable development, safeguarding natural resources, biodiversity, and the delicate balance of ecosystems, all of which are critical for sustaining life on our planet. The bioremediation of HMs by unicellular phototrophs harnesses their intrinsic detoxification mechanisms, including biosorption, bioaccumulation, and biotransformation. These processes can be remarkably effective in mitigating HMs, particularly at lower contaminant concentrations, surpassing the efficacy of conventional physicochemical methods and offering greater sustainability and cost-effectiveness. Here, we explore the potential of various engineered nanomaterials to further enhance the capacity and efficiency of HM bioremediation based on photosynthetic microorganisms. The critical assessment of the interactions between nanomaterials and unicellular phototrophs emphasised the ability of tailored nanomaterials to sustain photosynthetic metabolism and the defence system of microorganisms, thereby enhancing their growth, biomass accumulation, and overall bioremediation capacity. Key factors that could shape future research efforts toward sustainable nanobioremediation of HM are discussed, and knowledge gaps in the field have been identified. This study sheds light on the potential of nanobioremediation by unicellular phototrophs as an efficient, scalable, and cost-effective solution for HM removal.
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Affiliation(s)
- Francesco Milano
- Institute of Sciences of Food Production, National Research Council (CNR), Strada Provinciale Lecce-Monteroni, 73100 Lecce, Italy.
| | - Livia Giotta
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Strada Provinciale Lecce-Monteroni, 73100 Lecce, Italy.
| | - Maya D Lambreva
- Institute for Biological Systems, National Research Council (CNR), Strada Provinciale 35d, N. 9, 00010, Montelibretti, Rome, Italy.
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2
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Jia J, Xiao B, Yao L, Zhang B, Ma Y, Wang W, Han Y, Lei Q, Zhao R, Dong J, Wei N, Zhang H. The dominant role of extracellular polymeric substances produced by Achromobacter xylosoxidans BP1 in Cr(VI) microbial reduction. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174464. [PMID: 38964391 DOI: 10.1016/j.scitotenv.2024.174464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/12/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
Extracellular polymeric substances (EPS) have demonstrated significant benefits for reducing multivalent metal contamination. Using Achromobacter xylosoxidans BP1 isolated from a coal chemical site in China, this study elucidated the contribution of EPS production to Cr (VI) reduction and revealed its biological removal mechanism. BP1 grew at an optimum pH of 8 and the lowest inhibitory concentration of Cr(VI) was 300 mg/L. The spent medium completely removed Cr(VI), whereas resting cells were only able to remove 10.47 % and inactivated cells were nearly incapable of Cr(VI) removal. S-EPS and B-EPS reduced Cr(VI) by 98.59 % and 11.64 %, respectively. SEM-EDS analysis showed that the BP1 cells were stimulated to produce EPS under Cr stress. The XPS results showed that 29.63 % of Cr(VI) was enriched by intracellular bioaccumulation or biosorption and 70.37 % of Cr(VI) was reduced by extracellular enzymes to produce Cr(OH)3 and organic Cr(III) complexes. According to FTIR, EPS with -OH, COO-, and amide groups supplied binding sites and electrons for the reductive adsorption of Cr(VI). Genomic studies showed that BP1 primarily produces extracellular polysaccharides, metabolises sulphur and nitrogen, and reduces reactive oxygen species damage as a result of DNA repair proteases.
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Affiliation(s)
- Jianli Jia
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, People's Republic of China.
| | - Bing Xiao
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, People's Republic of China.
| | - Linying Yao
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, People's Republic of China.
| | - Ben Zhang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, People's Republic of China.
| | - Yichi Ma
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, People's Republic of China.
| | - Weiran Wang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, People's Republic of China.
| | - Yuxin Han
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, People's Republic of China.
| | - Qiushuang Lei
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, People's Republic of China; Center for Soil Protection and Landscape Design, Chinese Academy of Environmental Planning, Beijing 100041, People's Republic of China.
| | - Ruofan Zhao
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China.
| | - Jingqi Dong
- Center for Soil Protection and Landscape Design, Chinese Academy of Environmental Planning, Beijing 100041, People's Republic of China.
| | - Nan Wei
- Center for Soil Protection and Landscape Design, Chinese Academy of Environmental Planning, Beijing 100041, People's Republic of China.
| | - Hongzhen Zhang
- Center for Soil Protection and Landscape Design, Chinese Academy of Environmental Planning, Beijing 100041, People's Republic of China.
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Semeraro P, Giotta L, Talà A, Tufariello M, D'Elia M, Milano F, Alifano P, Valli L. A simple strategy based on ATR-FTIR difference spectroscopy to monitor substrate intake and metabolite release by growing bacteria. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123031. [PMID: 37392540 DOI: 10.1016/j.saa.2023.123031] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/24/2023] [Accepted: 06/14/2023] [Indexed: 07/03/2023]
Abstract
Attenuated total reflectance Fourier transform infrared (ATR-FTIR) difference spectroscopy has been employed for a variety of applications spanning from reaction mechanisms analysis to interface phenomena assessment. This technique is based on the detection of spectral changes induced by the chemical modification of the original sample. In the present study, we highlight the potential of the ATR-FTIR difference approach in the field of microbial biochemistry and biotechnology, reporting on the identification of main soluble species consumed and released by growing bacteria during the biohydrogen production process. Specifically, the mid-infrared spectrum of a model culture broth, composed of glucose, malt extract and yeast extract, was used as background to acquire the FTIR difference spectrum of the same broth as modified by Enterobacter aerogenes metabolism. The analysis of difference signals revealed that only glucose is degraded during hydrogen evolution in anaerobic conditions, while ethanol and 2,3-butanediol are the main soluble metabolites released with H2. This fast and easy analytical approach can therefore represent a sustainable strategy to screen different bacterial strains and to select raw and waste materials to be employed in the field of biofuel production.
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Affiliation(s)
- Paola Semeraro
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento, Lecce, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Unità di Lecce, Lecce, Italy
| | - Livia Giotta
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento, Lecce, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Unità di Lecce, Lecce, Italy.
| | - Adelfia Talà
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento, Lecce, Italy
| | - Maria Tufariello
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), UOS Lecce, Lecce, Italy
| | - Marcella D'Elia
- Dipartimento di Matematica e Fisica "Ennio De Giorgi", Università del Salento, Lecce, Italy
| | - Francesco Milano
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), UOS Lecce, Lecce, Italy
| | - Pietro Alifano
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento, Lecce, Italy
| | - Ludovico Valli
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento, Lecce, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Unità di Lecce, Lecce, Italy
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4
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Tarantino S, Capomolla C, Carlà A, Giotta L, Cascione M, Ingrosso C, Scarpa E, Rizzello L, Caricato AP, Rinaldi R, De Matteis V. Shape-Driven Response of Gold Nanoparticles to X-rays. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2719. [PMID: 37836360 PMCID: PMC10574111 DOI: 10.3390/nano13192719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/26/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023]
Abstract
Radiotherapy (RT) involves delivering X-ray beams to the tumor site to trigger DNA damage. In this approach, it is fundamental to preserve healthy cells and to confine the X-ray beam only to the malignant cells. The integration of gold nanoparticles (AuNPs) in the X-ray methodology could be considered a powerful tool to improve the efficacy of RT. Indeed, AuNPs have proven to be excellent allies in contrasting tumor pathology upon RT due to their high photoelectric absorption coefficient and unique physiochemical properties. However, an analysis of their physical and morphological reaction to X-ray exposure is necessary to fully understand the AuNPs' behavior upon irradiation before treating the cells, since there are currently no studies on the evaluation of potential NP morphological changes upon specific irradiations. In this work, we synthesized two differently shaped AuNPs adopting two different techniques to achieve either spherical or star-shaped AuNPs. The spherical AuNPs were obtained with the Turkevich-Frens method, while the star-shaped AuNPs (AuNSs) involved a seed-mediated approach. We then characterized all AuNPs with Transmission Electron Microscopy (TEM), Uv-Vis spectroscopy, Dynamic Light Scattering (DLS), zeta potential and Fourier Transform Infrared (FTIR) spectroscopy. The next step involved the treatment of AuNPs with two different doses of X-radiation commonly used in RT, namely 1.8 Gy and 2 Gy, respectively. Following the X-rays' exposure, the AuNPs were further characterized to investigate their possible physicochemical and morphological alterations induced with the X-rays. We found that AuNPs do not undergo any alteration, concluding that they can be safely used in RT treatments. Lastly, the actin rearrangements of THP-1 monocytes treated with AuNPs were also assessed in terms of coherency. This is a key proof to evaluate the possible activation of an immune response, which still represents a big limitation for the clinical translation of NPs.
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Affiliation(s)
- Simona Tarantino
- Department of Mathematics and Physics “E. De Giorgi”, University of Salento, Via Monteroni, 73100 Lecce, Italy; (S.T.); (M.C.); (A.P.C.)
| | - Caterina Capomolla
- Oncological Center, “Vito Fazzi” Hospital of Lecce, Piazza Filippo Muratore 1, 73100 Lecce, Italy; (C.C.)
| | - Alessandra Carlà
- Oncological Center, “Vito Fazzi” Hospital of Lecce, Piazza Filippo Muratore 1, 73100 Lecce, Italy; (C.C.)
| | - Livia Giotta
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy;
| | - Mariafrancesca Cascione
- Department of Mathematics and Physics “E. De Giorgi”, University of Salento, Via Monteroni, 73100 Lecce, Italy; (S.T.); (M.C.); (A.P.C.)
- Institute for Microelectronics and Microsystems (IMM), National Research Council (CNR), Via Monteroni, 73100 Lecce, Italy
| | - Chiara Ingrosso
- CNR-IPCF S.S. Bari, c/o Department of Chemistry, University of Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy;
| | - Edoardo Scarpa
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy; (E.S.); (L.R.)
- The National Institute of Molecular Genetics (INGM), 20133 Milan, Italy
| | - Loris Rizzello
- Department of Pharmaceutical Sciences, University of Milan, 20133 Milan, Italy; (E.S.); (L.R.)
- The National Institute of Molecular Genetics (INGM), 20133 Milan, Italy
| | - Anna Paola Caricato
- Department of Mathematics and Physics “E. De Giorgi”, University of Salento, Via Monteroni, 73100 Lecce, Italy; (S.T.); (M.C.); (A.P.C.)
- National Institute of Nuclear Physics (INFN), Section of Lecce, Via Monteroni, 73100 Lecce, Italy
| | - Rosaria Rinaldi
- Department of Mathematics and Physics “E. De Giorgi”, University of Salento, Via Monteroni, 73100 Lecce, Italy; (S.T.); (M.C.); (A.P.C.)
- Institute for Microelectronics and Microsystems (IMM), National Research Council (CNR), Via Monteroni, 73100 Lecce, Italy
| | - Valeria De Matteis
- Department of Mathematics and Physics “E. De Giorgi”, University of Salento, Via Monteroni, 73100 Lecce, Italy; (S.T.); (M.C.); (A.P.C.)
- Institute for Microelectronics and Microsystems (IMM), National Research Council (CNR), Via Monteroni, 73100 Lecce, Italy
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Improvement of Zn (II) and Cd (II) Biosorption by Priestia megaterium PRJNA526404 Isolated from Agricultural Waste Water. Microorganisms 2022; 10:microorganisms10122510. [PMID: 36557763 PMCID: PMC9782209 DOI: 10.3390/microorganisms10122510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/08/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Heavy metals are considered as dangerous pollutants even in relatively low concentrations. Biosorption is an ecofriendly technology that uses microbial biomasses for adsorbing heavy metals from wastewater on their surfaces based on physicochemical pathways. Ten agricultural wastewater samples were collected from different sites in Sohag Governorate, Egypt. One hundred and nineteen zinc and cadmium-resistant bacterial isolates were recovered from the water samples. Interestingly, the isolate R1 was selected as the most resistant to Zn2+ and Cd2+. This isolate was morphologically and biochemically characterized and identified by sequencing of 16S rRNA gene as Priestia megaterium, and then deposited in the GenBank database under the accession number PRJNA526404. Studying the effects of pH and contact time on the biosorption process revealed that the maximum biosorption was achieved within 50 min at pH 7 and 8 for Zn2+ and Cd2+, respectively, by the living and lyophelized biomass of Priestia megaterium PRJNA526404. The preliminary characterization of the main chemical groups present on the cell wall, which are responsible for heavy metal biosorption, was performed by Infrared analysis (IR). Kinetics studies revealed that data were fitted towards the models hypothesized by Langmuir and Freundlich isotherm equations. The maximum capacity values (qmax) for biosorption of zinc and cadmium reached by using living and lyophelized biomass were 196.08; 227.27 and 178.57; 212.777 mg/g, respectively, and it was indicated that lyophilization improved efficiency of the biomass to heavy metals compared to living cells. The results indicated that Priestia megaterium PRJNA526404 had good application prospect in cadmium and zinc water remediation.
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6
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Su YQ, Yuan S, Guo YC, Tan YY, Mao HT, Cao Y, Chen YE. Highly efficient and sustainable removal of Cr (VI) in aqueous solutions by photosynthetic bacteria supplemented with phosphor salts. CHEMOSPHERE 2021; 283:131031. [PMID: 34134043 DOI: 10.1016/j.chemosphere.2021.131031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 04/06/2021] [Accepted: 05/22/2021] [Indexed: 06/12/2023]
Abstract
Photosynthetic bacteria have flexible metabolisms and strong environmental adaptability, and require cheap, but plentiful, energy supplements, which all enable their use in Cr(VI)-remediation. In this study, the effects of culture conditions on the total Cr removal rate were investigated for a newly identified strain of Rhodobacter sphaeroides SC01. The subcellular distribution and Cr(VI) reduction ability of four different cellular fractions were evaluated by scanning electron microscopy and transmission electron microscopy. Experiments indicated that the optimal culture conditions for total Cr removal included a culture temperature of 35 °C, pH of 7.20, an NaCl concentration of 5 g L-1, a light intensity of 4000 lx, and an initial cell concentration (OD680) of 0.15. In addition, most Cr was found in the cell membrane in the form of Cr (III) after reduction, while cell membranes had the highest Cr(VI) reduction rate (99%) compared to other cellular components. In addition, the physical and chemical properties of SC01 cells were characterized by FTIR, XPS, and XRD analyses, confirming that Cr was successfully absorbed on bacterial cell surfaces. CrPO4‧6H2O and Cr5(P3O10)3 precipitates were particularly identified by XRD analysis. After screening supplementation with five phosphor salts, Cr(VI) reduction due to bioprecipitation was improved by the addition of Na4P2O7 and (NaPO3)6 salts, with the Cr(VI)-reduction rate combined with Na4P2O7 addition being 15% higher than that of the control. Thus, this study proposes a new Cr(VI)-removal strategy based on the combined use of photosynthetic bacteria and phosphor salts, which importantly increases its potential application in treating wastewater.
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Affiliation(s)
- Yan-Qiu Su
- College of Life Science, Sichuan Normal University, Chengdu, China.
| | - Shu Yuan
- College of Life Sciences, Sichuan Agricultural University, Ya'an, China
| | - Yuan-Cheng Guo
- College of Life Science, Sichuan Normal University, Chengdu, China
| | - Yong-Yao Tan
- College of Life Science, Sichuan Normal University, Chengdu, China
| | - Hao-Tian Mao
- College of Life Sciences, Sichuan Agricultural University, Ya'an, China
| | - Yi Cao
- Microbiology and Metabolic Engineering of Key Laboratory of Sichuan Province, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yang-Er Chen
- College of Life Sciences, Sichuan Agricultural University, Ya'an, China.
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7
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Chang T, Babu RP, Zhao W, Johnson CM, Hedström P, Odnevall I, Leygraf C. High-Resolution Microscopical Studies of Contact Killing Mechanisms on Copper-Based Surfaces. ACS APPLIED MATERIALS & INTERFACES 2021; 13:49402-49413. [PMID: 34618446 PMCID: PMC8532116 DOI: 10.1021/acsami.1c11236] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The mechanisms of bacterial contact killing induced by Cu surfaces were explored through high-resolution studies based on combinations of the focused ion beam (FIB), scanning transmission electron microscopy (STEM), high-resolution TEM, and nanoscale Fourier transform infrared spectroscopy (nano-FTIR) microscopy of individual bacterial cells of Gram-positive Bacillus subtilis in direct contact with Cu metal and Cu5Zn5Al1Sn surfaces after high-touch corrosion conditions. This approach permitted subcellular information to be extracted from the bioinorganic interface between a single bacterium and Cu/Cu5Zn5Al1Sn surfaces after complete contact killing. Early stages of interaction between individual bacteria and the metal/alloy surfaces include cell leakage of extracellular polymeric substances (EPSs) from the bacterium and changes in the metal/alloy surface composition upon adherence of bacteria. Three key observations responsible for Cu-induced contact killing include cell membrane damage, formation of nanosized copper-containing particles within the bacteria cell, and intracellular copper redox reactions. Direct evidence of cell membrane damage was observed upon contact with both Cu metal and Cu5Zn5Al1Sn surfaces. Cell membrane damage permits copper to enter into the cell interior through two possible routes, as small fragmentized Cu2O particles from the corrosion product layer and/or as released copper ions. This results in the presence of intracellular copper oxide nanoparticles inside the cell. The nanosized particles consist primarily of CuO with smaller amounts of Cu2O. The existence of two oxidation states of copper suggests that intracellular redox reactions play an important role. The nanoparticle formation can be regarded as a detoxification process of copper, which immobilizes copper ions via transformation processes within the bacteria into poorly soluble or even insoluble nanosized Cu structures. Similarly, the formation of primarily Cu(II) oxide nanoparticles could be a possible way for the bacteria to deactivate the toxic effects induced by copper ions via conversion of Cu(I) to Cu(II).
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Affiliation(s)
- Tingru Chang
- Department
of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden
- AIMES—Center
for the Advancement of Integrated Medical and Engineering Sciences
at Karolinska Institutet, KTH Royal Institute
of Technology, SE-171 77 Stockholm, Sweden
- Department
of Neuroscience, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - R. Prasath Babu
- Department
of Materials Science and Engineering, KTH
Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Weijie Zhao
- Department
of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden
| | - C. Magnus Johnson
- Department
of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden
| | - Peter Hedström
- Department
of Materials Science and Engineering, KTH
Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Inger Odnevall
- Department
of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden
- AIMES—Center
for the Advancement of Integrated Medical and Engineering Sciences
at Karolinska Institutet, KTH Royal Institute
of Technology, SE-171 77 Stockholm, Sweden
- Department
of Neuroscience, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Christofer Leygraf
- Department
of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden
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Das S, Agarwal DK, Mandal B, Rao VR, Kundu T. Detection of the Chilli Leaf Curl Virus Using an Attenuated Total Reflection-Mediated Localized Surface-Plasmon-Resonance-Based Optical Platform. ACS OMEGA 2021; 6:17413-17423. [PMID: 34278127 PMCID: PMC8280655 DOI: 10.1021/acsomega.1c01702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/09/2021] [Indexed: 05/16/2023]
Abstract
The development of a nanoparticle-based optical platform has been presented as a biosensor for detecting target-specific plant virus DNA. The binding dynamics of gold nanoparticles has been studied on the amine-functionalized surface by the attenuated total reflection (ATR)-based evanescent wave absorption method monitoring the localized surface plasmon resonance (LSPR). The developed surface was established as a refractive index sensor by monitoring the LSPR absorption peak of gold nanoparticles. This nanoparticle-immobilized surface was explored to establish as a biosensing platform with target-specific immunoglobulin (IgG) antibody-antigen interaction. The IgG concentration-dependent variation of absorbance was correlated with the refractive index change. After successfully establishing this ATR configuration as an LSPR-based biosensor, the single-stranded DNA of the chilli leaf curl virus was detected using its complementary DNA sequence as a receptor. The limit of detection of this sensor was determined to be 1.0 μg/mL for this target viral DNA. This ATR absorption technique has enormous potential as an LSPR based nano-biosensor for the detection of other begomoviruses.
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Affiliation(s)
- Sonatan Das
- Centre
for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Dilip Kumar Agarwal
- Department
of Physics, Indian Institute of Technology
Bombay, Mumbai 400076, India
| | - Bikash Mandal
- Advanced
Centre for Plant Virology, Indian Agricultural
Research Institute, Pusa, New Delhi, Delhi 110012, India
| | - V. Ramgopal Rao
- Centre
for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai 400076, India
- Department
of Electrical Engineering, Indian Institute
of Technology Bombay, Mumbai 400076, India
| | - Tapanendu Kundu
- Centre
for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai 400076, India
- Department
of Physics, Indian Institute of Technology
Bombay, Mumbai 400076, India
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9
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Barra Caracciolo A, Terenzi V. Rhizosphere Microbial Communities and Heavy Metals. Microorganisms 2021; 9:microorganisms9071462. [PMID: 34361898 PMCID: PMC8307176 DOI: 10.3390/microorganisms9071462] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 12/13/2022] Open
Abstract
The rhizosphere is a microhabitat where there is an intense chemical dialogue between plants and microorganisms. The two coexist and develop synergistic actions, which can promote plants’ functions and productivity, but also their capacity to respond to stress conditions, including heavy metal (HM) contamination. If HMs are present in soils used for agriculture, there is a risk of metal uptake by edible plants with subsequent bioaccumulation in humans and animals and detrimental consequences for their health. Plant productivity can also be negatively affected. Many bacteria have defensive mechanisms for resisting heavy metals and, through various complex processes, can improve plant response to HM stress. Bacteria-plant synergic interactions in the rhizosphere, as a homeostatic ecosystem response to HM disturbance, are common in soil. However, this is hard to achieve in agroecosystems managed with traditional practices, because concentrating on maximizing crop yield does not make it possible to establish rhizosphere interactions. Improving knowledge of the complex interactions mediated by plant exudates and secondary metabolites can lead to nature-based solutions for plant health in HM contaminated soils. This paper reports the main ecotoxicological effects of HMs and the various compounds (including several secondary metabolites) produced by plant-microorganism holobionts for removing, immobilizing and containing toxic elements.
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10
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Yang X, Lai JL, Li J, Zhang Y, Luo XG, Han MW, Zhu YB, Zhao SP. Biodegradation and physiological response mechanism of Bacillus aryabhattai to cyclotetramethylenete-tranitramine (HMX) contamination. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 288:112247. [PMID: 33765573 DOI: 10.1016/j.jenvman.2021.112247] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/27/2021] [Accepted: 02/19/2021] [Indexed: 05/14/2023]
Abstract
This study aims to reveal the biodegradation and interaction mechanism of cyclotetramethylenete-tranitramine (HMX) by a newly isolated bacteria. In this study, a bacterial strain (Bacillus aryabhattai) with high efficiency for HMX degradation was used as the test organism to analyze the changes in growth status, cell function, and mineral metabolism following exposure to different stress concentrations (0 and 5 mg L-1) of HMX. Non-targeted metabonomics was used to reveal the metabolic response of this strain to HMX stress. The results showed that when the HMX concentration was 5 mg L-1, the removal rate of HMX within 24 h of inoculation with Bacillus aryabhatta was as high as 90.5%, the OD600 turbidity was 1.024, and the BOD5 was 225 mg L-1. Scanning electron microscope (SEM) images showed that the morphology of bacteria was not obvious Variety, Fourier transform infrared spectroscopy (FTIR) showed that the cell surface -OH functional groups drifted, and ICP-MS showed that the cell mineral element metabolism was disturbed. Non-targeted metabonomics showed that HMX induced the differential expression of 254 metabolites (133 upregulated and 221 downregulated). The main differentially expressed metabolites during HMX stress were lipids and lipid-like molecules, and the most significantly affected metabolic pathway was purine metabolism. At the same time, the primary metabolic network of bacteria was disordered. These results confirmed that Bacillus aryabhattai has a high tolerance to HMX and can efficiently degrade HMX. The degradation mechanism involves the extracellular decomposition of HMX and transformation of the degradation products into intracellular purines, amino sugars, and nucleoside sugars that then participate in cell metabolism.
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Affiliation(s)
- Xu Yang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Jin-Long Lai
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Jie Li
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Yu Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Xue-Gang Luo
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Meng-Wei Han
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Yong-Bing Zhu
- National NBC National Key Laboratory of Civilian Protection, Beijing, 102205, China
| | - San-Ping Zhao
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China.
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Abstract
Infrared difference spectroscopy probes vibrational changes of proteins upon their perturbation. Compared with other spectroscopic methods, it stands out by its sensitivity to the protonation state, H-bonding, and the conformation of different groups in proteins, including the peptide backbone, amino acid side chains, internal water molecules, or cofactors. In particular, the detection of protonation and H-bonding changes in a time-resolved manner, not easily obtained by other techniques, is one of the most successful applications of IR difference spectroscopy. The present review deals with the use of perturbations designed to specifically change the protein between two (or more) functionally relevant states, a strategy often referred to as reaction-induced IR difference spectroscopy. In the first half of this contribution, I review the technique of reaction-induced IR difference spectroscopy of proteins, with special emphasis given to the preparation of suitable samples and their characterization, strategies for the perturbation of proteins, and methodologies for time-resolved measurements (from nanoseconds to minutes). The second half of this contribution focuses on the spectral interpretation. It starts by reviewing how changes in H-bonding, medium polarity, and vibrational coupling affect vibrational frequencies, intensities, and bandwidths. It is followed by band assignments, a crucial aspect mostly performed with the help of isotopic labeling and site-directed mutagenesis, and complemented by integration and interpretation of the results in the context of the studied protein, an aspect increasingly supported by spectral calculations. Selected examples from the literature, predominately but not exclusively from retinal proteins, are used to illustrate the topics covered in this review.
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Jiao X, Zheng K, Chen Q, Li X, Li Y, Shao W, Xu J, Zhu J, Pan Y, Sun Y, Xie Y. Photocatalytic Conversion of Waste Plastics into C
2
Fuels under Simulated Natural Environment Conditions. Angew Chem Int Ed Engl 2020; 59:15497-15501. [DOI: 10.1002/anie.201915766] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/15/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Xingchen Jiao
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Kai Zheng
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Qingxia Chen
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Xiaodong Li
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Yamin Li
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Weiwei Shao
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Jiaqi Xu
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Junfa Zhu
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Yang Pan
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Yongfu Sun
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
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13
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Jiao X, Zheng K, Chen Q, Li X, Li Y, Shao W, Xu J, Zhu J, Pan Y, Sun Y, Xie Y. Photocatalytic Conversion of Waste Plastics into C
2
Fuels under Simulated Natural Environment Conditions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915766] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xingchen Jiao
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Kai Zheng
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Qingxia Chen
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Xiaodong Li
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Yamin Li
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Weiwei Shao
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Jiaqi Xu
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Junfa Zhu
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Yang Pan
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Yongfu Sun
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at Microscale National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230026 P. R. China
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14
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Eudragit S100 Entrapped Liposome for Curcumin Delivery: Anti-Oxidative Effect in Caco-2 Cells. COATINGS 2020. [DOI: 10.3390/coatings10020114] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Curcumin is a natural polyphenol with strong antioxidant activity. However, this molecule shows a very poor bioavailability, instability, and rapid metabolism in vivo. In this work curcumin was loaded in Eudragit-coated liposomes to create a gastroresistant carrier, able to protect its load from degradation and free it at the site of absorption in the colon region. Small unilamellar vesicles were prepared and coated with Eudragit by a pH-driven method. The physico-chemical properties of the prepared systems were assessed by light scattering, transmission electron microscopy, infrared spectroscopy, and differential scanning calorimetry. The uptake of vesicles by Caco-2 cells and the anti-oxidant activity in cells were evaluated. The produced vesicles showed dimensions of about forty nanometers that after covering with Eudragit resulted to have micrometric dimensions at acid pH. The experiments showed that at pH > 7.0 the polymeric coating dissolves, releasing the nanometric liposomes and allowing them to enter Caco-2 cells. Delivered curcumin loaded vesicles were then able to decrease significantly ROS levels as induced by H2O2 in Caco-2 cells. The proposed work showed the possibility of realizing effective gastroresistant curcumin liposome formulations for the delivery of antioxidant molecules to Caco-2 cells, potentially applicable to the treatment of pathological conditions related to intestinal oxidative stress.
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Anjuran Vimala, Chinnapiyan Vedhi. Electrochemical Sensors for Heavy Metals Detection in Gracilaria corticata using Multiwalled Carbon Nanotubes Modified Glassy Carbon Electrode. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s106193481903002x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Papageorgiou M, Tselios C, Varotsis C. Photosensitivity responses ofSagittula stellataprobed by FTIR, fluorescence and Raman microspectroscopy. RSC Adv 2019; 9:27391-27397. [PMID: 35529232 PMCID: PMC9070597 DOI: 10.1039/c9ra03630j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 08/26/2019] [Indexed: 12/05/2022] Open
Abstract
Raman, fluorescence and FTIR experiments of prestine Sagittula stellata and Sagittula stellata–metal ion complexes grown in light and in dark were performed to probe the photosensitivity response of the cellular components in the marine bacterium. In the presence of Cu(ii) and Zn(ii) the frequency shifts of PO2−, C–O–C and C–O–P vibrations indicate metal binding to nucleic acids, carbohydrates and polysaccharides. We assign the observed bands in the 514.1 nm Raman spectra of the prestine S. Stellata and of the extracted carotenoids to the C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C and C–C stretching vibrations. The fluorescence excitation–emission matrix (EEM) of S. stellata in light, dark and in the presence of metal ions are reported and compared with the Raman and FTIR data. The novel ability of S. stellata although heterotrophic, to show light-dependent metal binding ability may be an important feature property that maintains a stable heterotroph–prototroph interaction and a dynamic system. Raman, fluorescence and FTIR experiments of prestine Sagittula stellata and Sagittula stellata–metal ion complexes grown in light and in dark were performed to probe the photosensitivity response of the cellular components in the marine bacterium.![]()
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Affiliation(s)
- Marios Papageorgiou
- Department of Environmental Science and Technology
- Cyprus University of Technology
- Lemesos
- Cyprus
| | - Charalampos Tselios
- Department of Environmental Science and Technology
- Cyprus University of Technology
- Lemesos
- Cyprus
| | - Constantinos Varotsis
- Department of Environmental Science and Technology
- Cyprus University of Technology
- Lemesos
- Cyprus
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17
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Ragni R, Leone G, la Gatta S, Rizzo G, Lo Presti M, De Leo V, Milano F, Trotta M, Farinola GM. A heptamethine cyanine dye suitable as antenna in biohybrids based on bacterial photosynthetic reaction center. ACTA ACUST UNITED AC 2018. [DOI: 10.1557/adv.2018.640] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Italiano F, Agostiano A, Belviso BD, Caliandro R, Carrozzini B, Comparelli R, Melillo MT, Mesto E, Tempesta G, Trotta M. Interaction between the photosynthetic anoxygenic microorganism Rhodobacter sphaeroides and soluble gold compounds. From toxicity to gold nanoparticle synthesis. Colloids Surf B Biointerfaces 2018; 172:362-371. [PMID: 30189387 DOI: 10.1016/j.colsurfb.2018.06.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 06/06/2018] [Indexed: 02/08/2023]
Abstract
Biological processes using microorganisms for nanoparticle synthesis are appealing as eco-friendly nanofactories. The response of the photosynthetic bacterium Rhodobacter sphaeroides to gold exposure and its reducing capability of Au(III) to produce stable gold nanoparticles (AuNPs), using metabolically active bacteria and quiescent biomass, is reported in this study. In the former case, bacterial cells were grown in presence of gold chloride at physiological pH. Gold exposure was found to cause a significant increase of the lag-phase duration at concentrations higher than 10 μM, suggesting the involvement of a resistance mechanism activated by Au(III). Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy/Energy Dispersive X-ray Spectrometry (SEM/EDS) analysis of bacterial cells confirmed the extracellular formation of AuNPs. Further studies were carried out on metabolically quiescent biomass incubated with gold chloride solution. The biosynthesized AuNPs were spherical in shape with an average size of 10 ± 3 nm, as analysed by Transmission Electron Microscopy (TEM). The nanoparticles were hydrophilic and stable against aggregation for several months. In order to identify the functional groups responsible for the reduction and stabilization of nanoparticles, AuNPs were analysed by Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy, X-ray Photoelectron Spectroscopy (XPS), X-ray Fluorescence Spectrometry (XRF) and X-ray Absorption Spectroscopy (XAS) measurements. The obtained results indicate that gold ions bind to functional groups of cell membrane and are subsequently reduced by reducing sugars to gold nanoparticles and capped by a protein/peptide coat. Gold nanoparticles demonstrated to be efficient homogeneous catalysts in the degradation of nitroaromatic compounds.
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Affiliation(s)
- Francesca Italiano
- CNR - Istituto per i Processi Chimico-Fisici, Sezione di Bari, via E. Orabona, 4, 70126, Bari, Italy.
| | - Angela Agostiano
- CNR - Istituto per i Processi Chimico-Fisici, Sezione di Bari, via E. Orabona, 4, 70126, Bari, Italy; Università degli Studi di Bari "Aldo Moro", Dipartimento di Chimica, via E. Orabona, 4, 70126, Bari, Italy
| | | | - Rocco Caliandro
- CNR - Istituto di Cristallografia, via G. Amendola, 122/O, 70126, Bari, Italy
| | | | - Roberto Comparelli
- CNR - Istituto per i Processi Chimico-Fisici, Sezione di Bari, via E. Orabona, 4, 70126, Bari, Italy
| | - Maria Teresa Melillo
- CNR - Istituto per la Protezione Sostenibile delle Piante, Sezione di Bari, Via G. Amendola, 122/D, 70126, Bari, Italy
| | - Ernesto Mesto
- Università degli Studi di Bari "Aldo Moro", Dipartimento di Scienze della Terra e Geoambientali, Via E. Orabona 4, 70126, Bari, Italy
| | - Gioacchino Tempesta
- Università degli Studi di Bari "Aldo Moro", Dipartimento di Scienze della Terra e Geoambientali, Via E. Orabona 4, 70126, Bari, Italy
| | - Massimo Trotta
- CNR - Istituto per i Processi Chimico-Fisici, Sezione di Bari, via E. Orabona, 4, 70126, Bari, Italy
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19
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Hong ZN, Jiang J, Li JY, Xu RK. Preferential adhesion of surface groups of Bacillus subtilis on gibbsite at different ionic strengths and pHs revealed by ATR-FTIR spectroscopy. Colloids Surf B Biointerfaces 2018; 165:83-91. [PMID: 29459260 DOI: 10.1016/j.colsurfb.2018.02.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 01/24/2018] [Accepted: 02/11/2018] [Indexed: 11/26/2022]
Abstract
Adhesion of bacteria onto minerals is a ubiquitous process that plays a central role in many biogeochemical, microbiology and environmental processes in soil and sediment. Although bacterial adhesion onto soil minerals such as phyllosilicates and Fe-oxides have been investigated extensively, little is known about the mechanisms for bacterial attachment onto Al-oxides. Here, we explored the adhesion of Bacillus subtilis onto gibbsite (γ-AlOOH) under various ionic strengths (1, 10, 50, and 100 mM NaCl) and pHs (pH 4, 7, and 9) by in-situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. The time evolution of the peak intensities of the attached bacteria suggested that the adhesion underwent an initial rapid reaction followed by a slow pseudo-first-order kinetic stage. Spectral comparison between the attached and free cells, together with the interaction energy calculated with the Derjaguin, Landau, Verwey, and Overbeek (DLVO) theory and the micro-morphology of bacteria-gibbsite complexes, indicated that both electrostatic and chemical (bacterial groups such as phosphate and carboxyl covalently bind to gibbsite) interactions participated in the adhesion processes. Both solution ionic strength (IS) and pH impacted the spectra of attached bacteria, but the peak intensity of different bands changed differently with these two factors, showing a preferential adhesion of surface groups (phosphate, carboxyl, and amide groups) on gibbsite at different conditions. The diverse responses to IS and pH alteration of the forces (chemical bonds, electrostatic attractions, and the hydrophobic interactions) that essentially govern the adhesion might be responsible for the preferential adhesion. These results may help to better understand how bacteria adhere onto soil oxides at molecular scales.
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Affiliation(s)
- Zhi-Neng Hong
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Jun Jiang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Jiu-Yu Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Ren-Kou Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
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20
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Hansda A, Kumar V, Anshumali. Cu-resistant Kocuria sp. CRB15: a potential PGPR isolated from the dry tailing of Rakha copper mine. 3 Biotech 2017; 7:132. [PMID: 28593515 DOI: 10.1007/s13205-017-0757-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 01/30/2017] [Indexed: 10/19/2022] Open
Abstract
Rhizobacteria may enhance biomass production and heavy metal tolerance of plants under stress conditions. The present study was carried out for isolation of metal-resistant bacteria that can be further utilized for phytoremediation process. A potential metal-resistant strain CRB15 was isolated from rhizospheric region of Saccharum spontaneum that was found to be resistant against Cu (6.29 mM), Zn (3.25 mM), Pb (1.5 mM), Ni (1.25 mM), and Cd (0.25 mM). SEM analysis was performed for evaluation of morphological changes on bacterial isolate. FTIR analysis observed the change in wavenumbers after the addition of Cu. 16S rDNA sequence analysis showed that CRB15 isolate matched best with genus of Kocuria and was named as Kocuria sp. CRB15. The isolate Kocuria sp. CRB15 was a potential plant growth-promoting rhizobacterium as it had a high IAA (46 µg ml-1), P solubilisation (39.37 µg ml-1), ammonia production (30.46 µmol ml-1), and hydrogen cyanide production capacity. Root-shoot elongation assay conducted on Brassica nigra under lab conditions with strain CRB15 demonstrated positive effects of strain CRB15 in root and shoot elongation of Cu-treated seedlings. This study proved the Kocuria sp. CRB15 a potential PGPR for bacterial-assisted phytoremediation.
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21
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Mezzetti A, Leibl W. Time-resolved infrared spectroscopy in the study of photosynthetic systems. PHOTOSYNTHESIS RESEARCH 2017; 131:121-144. [PMID: 27678250 DOI: 10.1007/s11120-016-0305-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 09/05/2016] [Indexed: 06/06/2023]
Abstract
Time-resolved (TR) infrared (IR) spectroscopy in the nanosecond to second timescale has been extensively used, in the last 30 years, in the study of photosynthetic systems. Interesting results have also been obtained at lower time resolution (minutes or even hours). In this review, we first describe the used techniques-dispersive IR, laser diode IR, rapid-scan Fourier transform (FT)IR, step-scan FTIR-underlying the advantages and disadvantages of each of them. Then, the main TR-IR results obtained so far in the investigation of photosynthetic reactions (in reaction centers, in light-harvesting systems, but also in entire membranes or even in living organisms) are presented. Finally, after the general conclusions, the perspectives in the field of TR-IR applied to photosynthesis are described.
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Affiliation(s)
- Alberto Mezzetti
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 7197, Laboratoire de Réactivité de Surfaces, 4 Pl. Jussieu, 75005, Paris, France.
- Institut de Biologie Intégrative de la Cellule (I2BC), IBITECS, CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, France.
| | - Winfried Leibl
- Institut de Biologie Intégrative de la Cellule (I2BC), IBITECS, CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, France
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22
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Tan ND, Yin JH, Pu G, Yuan Y, Meng L, Xu N. A simple polyethylenimine-salicylaldehyde fluorescence probe: sensitive and selective detection of Zn2+ and Cd2+ in aqueous solution by adding S2− ion. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.10.081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Ma Y, Oliveira RS, Freitas H, Zhang C. Biochemical and Molecular Mechanisms of Plant-Microbe-Metal Interactions: Relevance for Phytoremediation. FRONTIERS IN PLANT SCIENCE 2016; 7:918. [PMID: 27446148 PMCID: PMC4917562 DOI: 10.3389/fpls.2016.00918] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 06/09/2016] [Indexed: 05/22/2023]
Abstract
Plants and microbes coexist or compete for survival and their cohesive interactions play a vital role in adapting to metalliferous environments, and can thus be explored to improve microbe-assisted phytoremediation. Plant root exudates are useful nutrient and energy sources for soil microorganisms, with whom they establish intricate communication systems. Some beneficial bacteria and fungi, acting as plant growth promoting microorganisms (PGPMs), may alleviate metal phytotoxicity and stimulate plant growth indirectly via the induction of defense mechanisms against phytopathogens, and/or directly through the solubilization of mineral nutrients (nitrogen, phosphate, potassium, iron, etc.), production of plant growth promoting substances (e.g., phytohormones), and secretion of specific enzymes (e.g., 1-aminocyclopropane-1-carboxylate deaminase). PGPM can also change metal bioavailability in soil through various mechanisms such as acidification, precipitation, chelation, complexation, and redox reactions. This review presents the recent advances and applications made hitherto in understanding the biochemical and molecular mechanisms of plant-microbe interactions and their role in the major processes involved in phytoremediation, such as heavy metal detoxification, mobilization, immobilization, transformation, transport, and distribution.
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Affiliation(s)
- Ying Ma
- Centre for Functional Ecology, Department of Life Sciences, University of CoimbraCoimbra, Portugal
| | - Rui S. Oliveira
- Centre for Functional Ecology, Department of Life Sciences, University of CoimbraCoimbra, Portugal
- Department of Environmental Health, Research Centre on Health and Environment, School of Allied Health Sciences, Polytechnic Institute of PortoVila Nova de Gaia, Portugal
- Centro de Biotecnologia e Química Fina, Escola Superior de Biotecnologia, Universidade Católica PortuguesaPorto, Portugal
| | - Helena Freitas
- Centre for Functional Ecology, Department of Life Sciences, University of CoimbraCoimbra, Portugal
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Tangorra RR, Operamolla A, Milano F, Omar OH, Henrard J, Comparelli R, Italiano F, Agostiano A, De Leo V, Marotta R, Falqui A, Farinola GM, Trotta M. Assembly of a photosynthetic reaction center with ABA tri-block polymersomes: highlights on protein localization. Photochem Photobiol Sci 2015. [DOI: 10.1039/c5pp00189g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The micelle-to-vesicle transition technique was used to reconstitute the integral membrane protein photosynthetic reaction center (RC) and the position of the RC in the polymersome vesicle was investigated.
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25
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Li WW, Yu HQ. Insight into the roles of microbial extracellular polymer substances in metal biosorption. BIORESOURCE TECHNOLOGY 2014; 160:15-23. [PMID: 24345430 DOI: 10.1016/j.biortech.2013.11.074] [Citation(s) in RCA: 173] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 11/15/2013] [Accepted: 11/25/2013] [Indexed: 05/10/2023]
Abstract
Biosorption presents a potent technology to remediate metal-contaminated aqueous environment or even to recover precious metals. Extracellular polymeric substances (EPS) are believed to play an important role in metal biosorption by microorganisms, but the reported results have been rather contradictory and the underlying mechanisms remain largely unclear so far. This review aims to clarify why large discrepancies existed for different EPS-metal systems through systematically exploring into the adsorption mechanisms and influential factors, and to offer some implications for advancing the implementation of metal biosorption technologies. The state-of-the-art methodologies for characterizing metal-EPS binding are summarized; several interaction mechanisms, including ion exchange, complexation and surface precipitation, are analyzed; the major influential factors such as EPS composition, metal species, solution chemistry and operating conditions are discussed; and lastly future research needs to advance the investigations and implementations of such biosorption processes are proposed.
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Affiliation(s)
- Wen-Wei Li
- Department of Chemistry, University of Science & Technology of China, Hefei 230026, China
| | - Han-Qing Yu
- Department of Chemistry, University of Science & Technology of China, Hefei 230026, China.
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Volpicella M, Costanza A, Palumbo O, Italiano F, Claudia L, Placido A, Picardi E, Carella M, Trotta M, Ceci LR. Rhodobacter sphaeroidesadaptation to high concentrations of cobalt ions requires energetic metabolism changes. FEMS Microbiol Ecol 2014; 88:345-57. [DOI: 10.1111/1574-6941.12303] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 02/05/2014] [Accepted: 02/10/2014] [Indexed: 12/01/2022] Open
Affiliation(s)
- Mariateresa Volpicella
- Department of Biosciences, Biotechnologies and Biopharmaceutics; University of Bari; Bari Italy
| | - Alessandra Costanza
- Department of Biosciences, Biotechnologies and Biopharmaceutics; University of Bari; Bari Italy
| | - Orazio Palumbo
- Medical Genetics Unit; IRCCS Casa Sollievo della Sofferenza; San Giovanni Rotondo Italy
| | - Francesca Italiano
- Institute for Chemical-Physical Processes; Italian National Research Council (CNR); Bari Italy
| | - Leoni Claudia
- Department of Biosciences, Biotechnologies and Biopharmaceutics; University of Bari; Bari Italy
- Institute for Biomembranes and Bioenergetics; CNR; Bari Italy
| | - Antonio Placido
- Institute for Biomembranes and Bioenergetics; CNR; Bari Italy
| | - Ernesto Picardi
- Department of Biosciences, Biotechnologies and Biopharmaceutics; University of Bari; Bari Italy
- Institute for Biomembranes and Bioenergetics; CNR; Bari Italy
- National Institute of Biostructures and Biosystems (INBB); Roma Italy
| | - Massimo Carella
- Medical Genetics Unit; IRCCS Casa Sollievo della Sofferenza; San Giovanni Rotondo Italy
| | - Massimo Trotta
- Institute for Chemical-Physical Processes; Italian National Research Council (CNR); Bari Italy
| | - Luigi R. Ceci
- Institute for Biomembranes and Bioenergetics; CNR; Bari Italy
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Guascito MR, Chirizzi D, Malitesta C, Giotta L, Mastrogiacomo D, Valli L, Stabili L. Development and characterization of a novel bioactive polymer with antibacterial and lysozyme-like activity. Biopolymers 2014; 101:461-70. [DOI: 10.1002/bip.22404] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 07/31/2013] [Accepted: 08/27/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Maria Rachele Guascito
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Daniela Chirizzi
- Dipartimento di Beni Culturali; Università del Salento; Via Birago 73100 Lecce Italy
| | - Cosimino Malitesta
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Livia Giotta
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Disma Mastrogiacomo
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Ludovico Valli
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
| | - Loredana Stabili
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Via Monteroni 73100 Lecce Italy
- Dipartimento di Beni Culturali; Università del Salento; Via Birago 73100 Lecce Italy
- Istituto per l'Ambiente Marino Costiero CNR U.O.S. Taranto; Via Roma 3 74100 Taranto Italy
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Sinha A, Sinha R, Khare SK. Heavy Metal Bioremediation and Nanoparticle Synthesis by Metallophiles. GEOMICROBIOLOGY AND BIOGEOCHEMISTRY 2014. [DOI: 10.1007/978-3-642-41837-2_6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Calvano CD, Italiano F, Catucci L, Agostiano A, Cataldi TRI, Palmisano F, Trotta M. The lipidome of the photosynthetic bacterium Rhodobacter sphaeroides R26 is affected by cobalt and chromate ions stress. Biometals 2013; 27:65-73. [PMID: 24249151 DOI: 10.1007/s10534-013-9687-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 11/10/2013] [Indexed: 02/07/2023]
Abstract
A detailed characterization of membrane lipids of the photosynthetic bacterium Rhodobacter (R.) sphaeroides was accomplished by thin-layer chromatography coupled with matrix-assisted laser desorption ionization mass spectrometry. Such an approach allowed the identification of the main membrane lipids belonging to different classes, namely cardiolipins (CLs), phosphatidylethanolamines, phosphatidylglycerols (PGs), phosphatidylcholines, and sulfoquinovosyldiacylglycerols (SQDGs). Thus, the lipidomic profile of R. sphaeroides R26 grown in abiotic stressed conditions by exposure to bivalent cobalt cation and chromate oxyanion, was investigated. Compared to bacteria grown under control conditions, significant lipid alterations take place under both stress conditions; cobalt exposure stress results in the relative content increase of CLs and SQDGs, most likely compensating the decrease in PGs content, whereas chromate stress conditions result in the relative content decrease of both PGs and SQDGs, leaving CLs unaltered. For the first time, the response of R. sphaeroides to heavy metals as Co(2+) and CrO4 (2-) is reported and changes in membrane lipid profiles were rationalised.
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Affiliation(s)
- Cosima Damiana Calvano
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126, Bari, Italy
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Liu M, Yin H, Yang Y, Huang Y. Synthesis, characterization, and fluorescence properties of aniline- g-poly(styrene- co-maleic anhydride) and its lanthanide complexes. J Appl Polym Sci 2013. [DOI: 10.1002/app.39439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Min Liu
- Department of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou; 730000; People's Republic of China
| | - Handi Yin
- Department of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou; 730000; People's Republic of China
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Belviso BD, Italiano F, Caliandro R, Carrozzini B, Costanza A, Trotta M. Cobalt binding in the photosynthetic bacterium R. sphaeroides by X-ray absorption spectroscopy. Biometals 2013; 26:693-703. [DOI: 10.1007/s10534-013-9641-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 06/02/2013] [Indexed: 02/06/2023]
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Oves M, Khan MS, Zaidi A. Biosorption of heavy metals by Bacillus thuringiensis strain OSM29 originating from industrial effluent contaminated north Indian soil. Saudi J Biol Sci 2012; 20:121-9. [PMID: 24115905 DOI: 10.1016/j.sjbs.2012.11.006] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 11/18/2012] [Accepted: 11/24/2012] [Indexed: 10/27/2022] Open
Abstract
The study was navigated to examine the metal biosorbing ability of bacterial strain OSM29 recovered from rhizosphere of cauliflower grown in soil irrigated consistently with industrial effluents. The metal tolerant bacterial strain OSM29 was identified as Bacillus thuringiensis following 16S rRNA gene sequence analysis. In the presence of the varying concentrations (25-150 mgl(-1)) of heavy metals, such as cadmium, chromium, copper, lead and nickel, the B. thuringiensis strain OSM29 showed an obvious metal removing potential. The effect of certain physico-chemical factors such as pH, initial metal concentration, and contact time on biosorption was also assessed. The optimum pH for nickel and chromium removal was 7, while for cadmium, copper and lead, it was 6. The optimal contact time was 30 min. for each metal at 32 ± 2 °C by strain OSM29. The biosorption capacity of the strain OSM29 for the metallic ions was highest for Ni (94%) which was followed by Cu (91.8%), while the lowest sorption by bacterial biomass was recorded for Cd (87%) at 25 mgl(-1) initial metal ion concentration. The regression coefficients obtained for heavy metals from the Freundlich and Langmuir models were significant. The surface chemical functional groups of B. thuringiensis biomass identified by Fourier transform infrared (FTIR) were amino, carboxyl, hydroxyl, and carbonyl groups, which may be involved in the biosorption of heavy metals. The biosorption ability of B. thuringiensis OSM29 varied with metals and was pH and metal concentration dependent. The biosorption of each metal was fairly rapid which could be an advantage for large scale treatment of contaminated sites.
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Affiliation(s)
- Mohammad Oves
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
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Changes in morphology, cell wall composition and soluble proteome in Rhodobacter sphaeroides cells exposed to chromate. Biometals 2012; 25:939-49. [DOI: 10.1007/s10534-012-9561-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 05/17/2012] [Indexed: 11/26/2022]
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