1
|
Romano D, Caridi F, Di Bella M, Italiano F, Magazù S, Caccamo MT, Tripodo A, Faggio G, Grillo R, Triolo C, Messina G, Gattuso A, Sabatino G. Natural Radioactivity of the Crystalline Basement Rocks of the Peloritani Mountains (North-Eastern Sicily, Italy): Measurements and Radiological Hazard. Radiat Prot Dosimetry 2020; 191:ncaa178. [PMID: 33207370 DOI: 10.1093/rpd/ncaa178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
Crystalline rocks can produce dangerous radiation levels on the basis of their content in radioisotopes. Here, we report radiological data from 10 metamorphic and igneous rock samples collected from the crystalline basement of the Peloritani Mountains (southern Italy). In order to evaluate the radiological properties of these rocks, the gamma radiation and the radon emanation have been measured. Moreover, since some of these rocks are employed as building materials, we assess the potential hazard for population connected to their use. Gamma spectroscopy was used to measure the 226Ra, 232Th and 40K activity concentration, whereas the radon emanation was investigated by using a RAD 7 detector. The results show 226Ra, 232Th and 40K activity concentration values ranging from (17 ± 4) to (56 ± 8) Bq kg-1, (14 ± 3) to (77 ± 14) Bq kg-1 and (167 ± 84) to (1760 ± 242) Bq kg-1, respectively. Values of the annual effective dose equivalent outdoor range from 0.035 to 0.152 mSv y-1, whereas the gamma index is in the range of 0.22-0.98. The 222Rn emanation coefficient and the 222Rn surface exhalation rate vary from (0.63 ± 0.3) to (8.27 ± 1.6)% and from (0.12 ± 0.03) to (2.75 ± 0.17) Bq m-2 h-1, respectively. The indoor radon derived from the building use of these rocks induces an approximate contribution to the annual effective dose ranging from 8 to 176 μSv y-1. All the obtained results suggest that the crystalline rocks from the Peloritani Mountains are not harmful for the residential population, even though they induce annual effective doses due to terrestrial gamma radiation above the worldwide average values. Moreover, their use as building materials does not produce significant health hazards connected to the indoor radon exposure.
Collapse
Affiliation(s)
- D Romano
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra (MIFT), Università di Messina, 98166 Messina, Italy
- Istituto Nazionale di Geofisica e Vulcanologia, 90146 Palermo, Italy
| | - F Caridi
- Dipartimento di Reggio Calabria, Agenzia Regionale per la protezione dell'Ambiente della Calabria, Italy (ARPACal), Via Troncovito SNC, 89135 Reggio Calabria, Italy
| | - M Di Bella
- Istituto Nazionale di Geofisica e Vulcanologia, 90146 Palermo, Italy
| | - F Italiano
- Istituto Nazionale di Geofisica e Vulcanologia, 90146 Palermo, Italy
| | - S Magazù
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra (MIFT), Università di Messina, 98166 Messina, Italy
| | - M T Caccamo
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra (MIFT), Università di Messina, 98166 Messina, Italy
| | - A Tripodo
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra (MIFT), Università di Messina, 98166 Messina, Italy
| | - G Faggio
- Dipartimento di Ingegneria dell'Informazione, delle Infrastrutture e dell'Energia Sostenibile (DIIES), Università "Mediterranea", 89122 Reggio Calabria, Italy
| | - R Grillo
- Dipartimento di Ingegneria dell'Informazione, delle Infrastrutture e dell'Energia Sostenibile (DIIES), Università "Mediterranea", 89122 Reggio Calabria, Italy
| | - C Triolo
- Dipartimento di Ingegneria Civile, dell'Energia, dell'Ambiente e dei Materiali (DICEAM), Università "Mediterranea", 89122 Reggio Calabria, Italy
| | - G Messina
- Dipartimento di Ingegneria dell'Informazione, delle Infrastrutture e dell'Energia Sostenibile (DIIES), Università "Mediterranea", 89122 Reggio Calabria, Italy
| | - A Gattuso
- Istituto Nazionale di Geofisica e Vulcanologia, 90146 Palermo, Italy
| | - G Sabatino
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra (MIFT), Università di Messina, 98166 Messina, Italy
| |
Collapse
|
2
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
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
| |
Collapse
|
3
|
Volpicella M, Leoni C, Manzari C, Chiara M, Picardi E, Piancone E, Italiano F, D'Erchia A, Trotta M, Horner DS, Pesole G, Ceci LR. Transcriptomic analysis of nickel exposure in Sphingobium sp. ba1 cells using RNA-seq. Sci Rep 2017; 7:8262. [PMID: 28811613 PMCID: PMC5557971 DOI: 10.1038/s41598-017-08934-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 07/10/2017] [Indexed: 02/06/2023] Open
Abstract
Nickel acts as cofactor for a number of enzymes of many bacteria species. Its homeostasis is ensured by proteins working as ion efflux or accumulation systems. These mechanisms are also generally adopted to counteract life-threatening high extra-cellular Ni2+ concentrations. Little is known regarding nickel tolerance in the genus Sphingobium. We studied the response of the novel Sphingobium sp. ba1 strain, able to adapt to high Ni2+ concentrations. Differential gene expression in cells cultured in 10 mM Ni2+, investigated by RNA-seq analysis, identified 118 differentially expressed genes. Among the 90 up-regulated genes, a cluster including genes coding for nickel and other metal ion efflux systems (similar to either cnrCBA, nccCBA or cznABC) and for a NreB-like permease was found. Comparative analyses among thirty genomes of Sphingobium species show that this cluster is conserved only in two cases, while in the other genomes it is partially present or even absent. The differential expression of genes encoding proteins which could also work as Ni2+-accumulators (HupE/UreJ-like protein, NreA and components of TonB-associated transport and copper-homeostasis systems) was also detected. The identification of Sphingobium sp. ba1 strain adaptive mechanisms to nickel ions, can foster its possible use for biodegradation of poly-aromatic compounds in metal-rich environments.
Collapse
Affiliation(s)
- M Volpicella
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy
| | - C Leoni
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy
| | - C Manzari
- IBIOM-CNR, Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Bari, Italy
| | - M Chiara
- Department of Biosciences, University of Milan, Milan, Italy
| | - E Picardi
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy.,IBIOM-CNR, Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Bari, Italy
| | - E Piancone
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy
| | - F Italiano
- IPCF-CNR, Institute for Chemical-Physical Processes, Bari, Italy
| | - A D'Erchia
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy.,IBIOM-CNR, Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Bari, Italy
| | - M Trotta
- IPCF-CNR, Institute for Chemical-Physical Processes, Bari, Italy
| | - D S Horner
- IBIOM-CNR, Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Bari, Italy.,Department of Biosciences, University of Milan, Milan, Italy
| | - G Pesole
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy.,IBIOM-CNR, Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Bari, Italy
| | - L R Ceci
- IBIOM-CNR, Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Bari, Italy.
| |
Collapse
|
4
|
Abstract
Nocturnal enuresis is a common disorder in childhood, but its pathophysiological mechanisms have not been fully elucidated. Iatrogenic nocturnal enuresis has been described following treatment with several psychotropic medications. Herein, we describe a 6-year-old child who experienced nocturnal enuresis during treatment with the antihistamine cetirizine. Drug rechallenge was positive. Several neurotransmitters are implicated in the pathogenesis of nocturnal enuresis, including noradrenaline, serotonin and dopamine. Antihistamine treatment may provoke functional imbalance of these pathways resulting in incontinence.
Collapse
Affiliation(s)
| | | | | | - R S Calabrò
- Allergology and Immunology Unit, University of Messina, Messina, Italy
| |
Collapse
|
5
|
Granafei S, Losito I, Trotta M, Italiano F, de Leo V, Agostiano A, Palmisano F, Cataldi TRI. Profiling of ornithine lipids in bacterial extracts of Rhodobacter sphaeroides by reversed-phase liquid chromatography with electrospray ionization and multistage mass spectrometry (RPLC-ESI-MS(n)). Anal Chim Acta 2015; 903:110-20. [PMID: 26709304 DOI: 10.1016/j.aca.2015.11.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 11/06/2015] [Accepted: 11/08/2015] [Indexed: 11/15/2022]
Abstract
Ornithine lipids (OLs), a sub-group of the large (and of emerging interest) family of lipoamino acids of bacterial origin, contain a 3-hydroxy fatty acyl chain linked via an amide bond to the α-amino group of ornithine and via an ester bond to a second fatty acyl chain. OLs in extracts of Rhodobacter sphaeroides (R. sphaeroides) were investigated by high-performance reversed phase liquid chromatography (RPLC) with electrospray ionization mass spectrometry (ESI-MS) in negative ion mode using a linear ion trap (LIT). The presence of OLs bearing both saturated (i.e, 16:0, 17:0, 18:0, 19:0 and 20:0) and unsaturated chains (i.e., 18:1, 19:1, 19:2 and 20:1) was ascertained and their identification, even for isomeric, low abundance and partially co-eluting species, was achieved by low-energy collision induced dissociation (CID) multistage mass spectrometry (MS(n), n = 2-4). OLs signatures found in two R. sphaeroides strains, i.e., wild type 2.4.1 and mutant R26, were examined and up to 16 and 17 different OL species were successfully identified, respectively. OLs in both bacterial strains were characterized by several combinations of fatty chains on ester-linked and amide-linked 3-OH fatty acids. Multistage MS spectra of monoenoic amide-linked 3-OH acyl chains, allowed the identification of positional isomer of OL containing 18:1 (i.e. 9-octadecenoic) and 20:1 (i.e. 11-eicosenoic) fatty acids. The most abundant OL ([M-H](-) at m/z 717.5) in R. sphaeroides R26 was identified as OL 3-OH 20:1/19:1 (i.e., 3-OH-eicosenoic acid amide-linked to ornithine and esterified to a nonadecenoic chain containing a cyclopropane ring). An unusual OL (m/z 689.5 for the [M-H](-) ion), most likely containing a cyclopropene ester-linked acyl chain (i.e., OL 3-OH 18:0/19:2), was retrieved only in the carotenoidless mutant strain R26. Based on the biosynthetic pathways already known for cyclopropa(e)ne ring-including acyl chains, a plausible explanation was invoked for the enzymatic generation of this ester-linked chain in R. sphaeroides.
Collapse
Affiliation(s)
- Sara Granafei
- Dipartimento di Chimica, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy
| | - Ilario Losito
- Dipartimento di Chimica, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy; Centro Interdipartimentale SMART, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy
| | - Massimo Trotta
- Istituto Processi Chimico Fisici CNR, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy
| | - Francesca Italiano
- Istituto Processi Chimico Fisici CNR, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy
| | - Vincenzo de Leo
- Istituto Processi Chimico Fisici CNR, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy
| | - Angela Agostiano
- Istituto Processi Chimico Fisici CNR, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy
| | - Francesco Palmisano
- Dipartimento di Chimica, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy; Centro Interdipartimentale SMART, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy
| | - Tommaso R I Cataldi
- Dipartimento di Chimica, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy; Centro Interdipartimentale SMART, Università degli Studi Aldo Moro di Bari, Via E. Orabona, 4 - 70126 Bari, Italy.
| |
Collapse
|
6
|
Calvano CD, Italiano F, Catucci L, Agostiano A, Cataldi TRI, Palmisano F, Trotta M. Erratum to: The lipidome of the photosynthetic bacterium Rhodobacter sphaeroides R26 is affected by cobalt and chromate ions stress. Biometals 2015; 28:229. [DOI: 10.1007/s10534-014-9818-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
7
|
Daresta BE, Italiano F, Gennaro GD, Trotta M, Tutino M, Veronico P. Atmospheric particulate matter (PM) effect on the growth of Solanum lycopersicum cv. Roma plants. Chemosphere 2015; 119:37-42. [PMID: 24955951 DOI: 10.1016/j.chemosphere.2014.05.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 05/15/2014] [Accepted: 05/19/2014] [Indexed: 06/03/2023]
Abstract
This study shows the direct effect of atmospheric particulate matter on plant growth. Tomato (Solanum lycopersicum L.) plants were grown for 18d directly on PM10 collected on quartz fiber filters. Organic and elemental carbon and polycyclic aromatic hydrocarbons (PAHs) contents were analyzed on all the tested filters. The toxicity indicators (i.e., seed germination, root elongation, shoot and/or fresh root weight, chlorophyll and carotenoids content) were quantified to study the negative and/or positive effects in the plants via root uptake. Substantial differences were found in the growth of the root apparatus with respect to that of the control plants. A 17-58% decrease of primary root elongation, a large amount of secondary roots and a decrease in shoot (32%) and root (53-70%) weights were found. Quantitative analysis of the reactive oxygen species (ROS) indicated that an oxidative burst in response to abiotic stress occurred in roots directly grown on PM10, and this detrimental effect was also confirmed by the findings on the chlorophyll content and chlorophyll-to-carotenoid ratio.
Collapse
Affiliation(s)
- Barbara Elisabetta Daresta
- Agenzia Regionale per la Prevenzione e Protezione dell'Ambiente (ARPA Puglia), Corso Trieste 27, 70126 Bari, Italy
| | - Francesca Italiano
- CNR, Istituto per i Processi Chimico Fisici, via Orabona 4, 70125 Bari, Italy
| | - Gianluigi de Gennaro
- Agenzia Regionale per la Prevenzione e Protezione dell'Ambiente (ARPA Puglia), Corso Trieste 27, 70126 Bari, Italy; Dipartimento di Chimica Università degli Studi di Bari, via Orabona 4, 70125 Bari, Italy
| | - Massimo Trotta
- CNR, Istituto per i Processi Chimico Fisici, via Orabona 4, 70125 Bari, Italy
| | - Maria Tutino
- Agenzia Regionale per la Prevenzione e Protezione dell'Ambiente (ARPA Puglia), Corso Trieste 27, 70126 Bari, Italy
| | - Pasqua Veronico
- CNR, Istituto per la Protezione Sostenibile delle Piante, via G. Amendola 122/d, 70126 Bari, Italy.
| |
Collapse
|
8
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
|
9
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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
| |
Collapse
|
10
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
Affiliation(s)
- Cosima Damiana Calvano
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126, Bari, Italy
| | | | | | | | | | | | | |
Collapse
|
11
|
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] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 06/02/2013] [Indexed: 02/06/2023]
|
12
|
Italiano F, D’Amici GM, Rinalducci S, De Leo F, Zolla L, Gallerani R, Trotta M, Ceci LR. The photosynthetic membrane proteome of Rhodobacter sphaeroides R-26.1 exposed to cobalt. Res Microbiol 2011; 162:520-7. [DOI: 10.1016/j.resmic.2011.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Accepted: 03/31/2011] [Indexed: 10/18/2022]
|
13
|
Giotta L, Mastrogiacomo D, Italiano F, Milano F, Agostiano A, Nagy K, Valli L, Trotta M. Reversible binding of metal ions onto bacterial layers revealed by protonation-induced ATR-FTIR difference spectroscopy. Langmuir 2011; 27:3762-3773. [PMID: 21395289 DOI: 10.1021/la104868m] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The ability of microorganisms to adhere to abiotic surfaces and the potentialities of attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy have been exploited to study protonation and heavy metal binding events onto bacterial surfaces. This work represents the first attempt to apply on bacteria the recently developed method known as perfusion-induced ATR-FTIR difference spectroscopy. Such a technique allows measurement of even slight changes in the infrared spectrum of the sample, deposited as a thin layer on an ATR crystal, while an aqueous solution is perfused over its surface. Solutions at different pH have been used for inducing protonation/deprotonation of functional groups lying on the surface of Rhodobacter sphaeroides cells, chosen as a model system. The interaction of Ni(2+) with surface protonable groups of this microorganism has been investigated with a double-difference approach exploiting competition between nickel cations and protons. Protonation-induced difference spectra of simple model compounds have been acquired to guide band assignment in bacterial spectra, thus allowing identification of major components involved in proton uptake and metal binding. The data collected reveal that carboxylate moieties on the bacterial surface of R. sphaeroides play a role in extracellular biosorption of Ni(2+), establishing with this ion relatively weak coordinative bonds.
Collapse
Affiliation(s)
- Livia Giotta
- Dipartimento di Scienza dei Materiali, University of Salento, Lecce, I-73100, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Asztalos E, Italiano F, Milano F, Maróti P, Trotta M. Early detection of mercury contamination by fluorescence induction of photosynthetic bacteria. Photochem Photobiol Sci 2010; 9:1218-23. [PMID: 20664861 DOI: 10.1039/c0pp00040j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The induction (sudden dark-to-light transition) of fluorescence of photosynthetic bacteria has proved to be sensitive tool for early detection of mercury (Hg(2+)) contamination of the culture medium. The major characteristics of the induction (dark, variable and maximum fluorescence levels together with rise time) offer an easier, faster and more informative assay of indication of the contamination than the conventional techniques. The inhibition of Hg(2+) is stronger in the light than in the dark and follows complex kinetics. The fast component (in minutes) reflects the damage of the quinone acceptor pool of the RC and the slow component (in hours) is sensitive to the disintegration of the light harvesting system including the loss of the structural organization and of the pigments. By use of fluorescence induction, the dependence of the diverse pathways and kinetics of the mercury-induced effects on the age and the metabolic state of the bacteria were revealed.
Collapse
Affiliation(s)
- Emese Asztalos
- Department of Biophysics, University of Szeged, Rerrich Béla tér 1, H-6720, Hungary
| | | | | | | | | |
Collapse
|
15
|
Losurdo L, Italiano F, Trotta M, Gallerani R, Luigi RC, Leo FD. Assessment of an internal reference gene in Rhodobacter sphaeroides grown under cobalt exposure. J Basic Microbiol 2010; 50:302-5. [DOI: 10.1002/jobm.200900340] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
16
|
D'Amici GM, Rinalducci S, Murgiano L, Italiano F, Zolla L. Oligomeric characterization of the photosynthetic apparatus of Rhodobacter sphaeroides R26.1 by nondenaturing electrophoresis methods. J Proteome Res 2010; 9:192-203. [PMID: 19899738 DOI: 10.1021/pr9005052] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Blue and colorless native gel electrophoresis in combination with LC-ESI-MS/MS are powerful tools in the analysis of protein networks in biological membranes. We used these techniques in the present study to generate a comprehensive overview on a proteome-wide scale of intracytoplasmic membrane (ICM) associated proteins in order to investigate the native supramolecular organization of Rhodobacter sphaeroides R26.1 photosynthetic apparatus. The results obtained were compared with past proteomic data, as well as with models for the topology of photosynthetic membranes as derived from previously published atomic force microscopy studies. We identified 52 proteins organized in 10 different multiprotein complexes. We were able to demonstrate the existence of different oligomeric states for the integral membrane pigment-protein complexes dedicated to bacterial photosynthesis. Specifically, we found dimers and trimers, as well as supercomplexes of light-harvesting (LH) 2 at very high molecular weights (around 10,000 kDa). We recovered the monomeric form of the photochemical reaction center (RC), as well as the monomer and dimer of the reaction center-light harvesting 1-PufX (RC-LH1-PufX) complex. Curiously, no type of LH1 complex was detected. Lastly, ATP synthase and cytochrome bc(1) complexes were only recovered in their monomeric states. Purified ICM vesicles were shown to be rich in newly discovered gene products, including three proteins with unknown functions (RSP_2125, RSP_3238, RSP_6207), a possible alkane hydroxylase and a spheroidene monooxygenase. Other multiprotein complexes were found to be localized in the ICM, including succinate dehydrogenase in trimeric form and sarcosine oxidase in two different aggregation states. These findings contribute to the growing body of evidence that the bacterial ICM is a specialized bioenergetic membrane hosting, not only photosynthesis, but many other critical activities.
Collapse
|
17
|
Milano F, Italiano F, Agostiano A, Trotta M. Characterisation of RC-proteoliposomes at different RC/lipid ratios. Photosynth Res 2009; 100:107-112. [PMID: 19387862 DOI: 10.1007/s11120-009-9423-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Accepted: 04/06/2009] [Indexed: 05/27/2023]
Abstract
Reconstitution of membrane proteins in phospholipid vesicles allows the investigation of such macromolecules in a biomimetic simplified environment. The often employed micelle-to-vesicle-transition method for proteoliposome preparation is a fast and reproducible technique. In this, communication is shown that the lipid/protein ratio influences the size of the proteoliposomes and the actual protein reconstitution. The results indicate that for photosynthetic reaction centres, the best conditions for ligand-interaction experiments are achieved with a lipid/protein value of 1000:1, while for complete protein incorporation, the 2000:1 ratio should be chosen.
Collapse
Affiliation(s)
- Francesco Milano
- CNR, Istituto per i Processi Chimico-Fisici, Sezione di Bari, c/o Dipartimento di Chimica, Via Orabona, 4 I-70124, Bari, Italy
| | | | | | | |
Collapse
|
18
|
Pisani F, Italiano F, de Leo F, Gallerani R, Rinalducci S, Zolla L, Agostiano A, Ceci L, Trotta M. Soluble proteome investigation of cobalt effect on the carotenoidless mutant ofRhodobacter sphaeroides. J Appl Microbiol 2009; 106:338-49. [DOI: 10.1111/j.1365-2672.2008.04007.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
19
|
Buccolieri A, Italiano F, Dell'Atti A, Buccolieri G, Giotta L, Agostiano A, Milano F, Trotta M. Testing the photosynthetic bacterium Rhodobacter sphaeroides as heavy metal removal tool. ACTA ACUST UNITED AC 2006; 96:195-203. [PMID: 16836253 DOI: 10.1002/adic.200690019] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We present some preliminary results relevant to the ability of the purple non-sulphur bacterium Rhodobacter sphaeroides strain R26.1 to sequester heavy metals from contaminated growth media. The microorganism was chosen because of its significant tolerance to relatively high concentrations of the investigated ions Ni2+, Co2+, CrO4(2-), and MoO4(2-). In this paper the optimized conditions for the bacterial growth and the sample preparation used to infer the ability of the microorganism to cope with metal pollutants are presented. Elemental analysis has been performed by inductively coupled plasma atomic emission spectrometry previous mineralization of samples by a microwave system.
Collapse
Affiliation(s)
- Alessandro Buccolieri
- Dipartimento di Scienza dei Materiali, Università degli Studi di Lecce, via per Arnesano, 73100 Lecce, Italy
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Giotta L, Agostiano A, Italiano F, Milano F, Trotta M. Heavy metal ion influence on the photosynthetic growth of Rhodobacter sphaeroides. Chemosphere 2006; 62:1490-9. [PMID: 16081134 DOI: 10.1016/j.chemosphere.2005.06.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2005] [Revised: 05/31/2005] [Accepted: 06/12/2005] [Indexed: 05/03/2023]
Abstract
The potential of purple non-sulphur bacteria for bioremediation was assessed by investigating the ability of Rhodobacter sphaeroides strain R26.1 to grow photosynthetically in heavy metal contaminated environments. Bacterial cultures were carried out in artificially polluted media, enriched with the transition metal ions Hg2+, Cu2+, Fe2+, Ni2+, Co2+, MoO4(2-), and CrO4(2-) in millimolar concentration range. For each investigated ion the effect on growth parameters was evaluated. The analysis of concentration-effect curves revealed a differentiated response, indicating that diverse mechanisms of tolerance and/or resistance are involved. Adaptation or selection procedures were not applied, leading to assess intrinsic abilities of coping with these contaminants. The microorganism proved to be highly tolerant to heavy metal exposure, especially towards Co2+, Fe2+ and MoO4(2-). In addition Ni2+ and Co2+ were found to decrease the cellular content of light harvesting complexes. A characteristic behavior was observed with mercuric ions, which produced a significant increase of the lag-phase.
Collapse
Affiliation(s)
- Livia Giotta
- Dipartimento di Scienza dei Materiali, Università degli Studi di Lecce, strada per Arnesano, 73100 Lecce, Italy.
| | | | | | | | | |
Collapse
|
21
|
Zmazek B, Italiano F, Zivcić M, Vaupotic J, Kobal I, Martinelli G. Geochemical monitoring of thermal waters in Slovenia: relationships to seismic activity. Appl Radiat Isot 2002; 57:919-30. [PMID: 12406638 DOI: 10.1016/s0969-8043(02)00200-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Thermally anomalous fluids released in seismic areas in Slovenia were the subjects of geochemical monitoring. Thermal waters were surveyed from the seismically active area of Posocje (Bled and Zatolmin; NW Slovenia) and from Rogaska Slatina in eastern Slovenia. Continuous monitoring of geochemical parameters (radon concentration, electrical conductivity, and water temperature) was performed with discrete gas sampling for their (3)He/(4)He ratio. The observed values were correlated with meteorological parameters (rainfall, barometric pressure and air temperature) and with seismic activity. Only a few earthquakes occurred in the vicinity of the measuring sites during the monitoring period. Nevertheless, changes in radon concentration, water temperature, electrical conductivity and helium isotopic ratio were detected at the three thermal springs in the periods preceding the earthquakes. A close correlation was also observed of both water temperature and electrical conductivity with the Earth tide, making the observations in the selected sites a promising tool for addressing the widely debated question of earthquake prediction.
Collapse
Affiliation(s)
- B Zmazek
- J Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia.
| | | | | | | | | | | |
Collapse
|
22
|
Cigna RM, Chiaramonte C, Italiano F, Cataliotti F. [Treatment of complications in hypospadias surgery: modern advancement]. MINERVA UROL NEFROL 2002; 54:107-11. [PMID: 12070457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
BACKGROUND With today's improved surgical techniques, complications in hypospadias surgery are seen less often, especially in distal form (1-5%). However, in proximal or complex hypospadias complications rate varied between 15 and 57%. Corrective surgery is mandatory in maior complications (urethrocutaneous fistulas, persistent chorde, urethral strictures, superficial skin separation). The search for the innovative surgical procedures and the optimal urethral substitute continues because each tissue has its particular shortcomings and disadvantages. METHODS At our hospital complications occurred in 25 ( 15%) of 177 patients who underwent primary hypospadias repair between 1994 and 1998. 9 patients required further surgery to repair the complications of previous hypospadias operations performed at other institutions. When local epithelial tissue was not available, different surgical procedures were performed, using bladder or buccal mucosa graft and free or vascularized tunica vaginalis flaps. RESULTS Follow up ranged from 3 to 6 years: the cosmetic and functional results were excellent. Small fistulas occurred in 3 patients and were corrected successfully in a subsequent surgical procedure using a tunica vaginalis wrap. CONCLUSIONS The concept of using tunica vaginalis in urethral reconstruction represent a recent innovation. This tissue is a valid alternative in cases of multiple failed repairs.
Collapse
Affiliation(s)
- R M Cigna
- Istituto Materno-Infantile, Clinica Chirurgica Pediatrica, Università degli Studi, Palermo, Italy
| | | | | | | |
Collapse
|
23
|
Italiano F, Pecoraino G, Nuccio PM. Steam output from fumaroles of an active volcano: Tectonic and magmatic-hydrothermal controls on the degassing system at Vulcano (Aeolian arc). ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jb02237] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
24
|
Deambrogio V, Bonardi R, Italiano F. [Evaluation of the hemorheologic effects of the eicosapentaenoic and docosahexaenoic acids in asymptomatic dyslipidemic and arteriopathic subjects]. Minerva Med 1987; 78:1147-50. [PMID: 3039414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The low incidence of cardiovascular disease in Greenlandic Eskimos is related to the effect of dietary omega-3 polyunsaturated fatty acids. An important anti-atherosclerotic mechanism of compounds such as EPA and DHA consist in the modulation of cell membrane and properties. A change in the lipid composition of the diet and a dietary supplementation with EPA and DHA contribute to suggested potential therapeutic effect on peripheral vascular disease. The Authors report the results obtained by Doppler C.W. ultrasound in hyperlipidemic-arteriopathic patients.
Collapse
|
25
|
Silvestro L, Italiano F, Barberis L. [Clinico-statistical considerations on congenital malformations observed among 5000 patients at the Children's Hospital of the University of Turin]. Minerva Pediatr 1985; 37:117-20. [PMID: 3160922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
26
|
Silvestro L, Bona G, Italiano F, Mussa GC. [Pulmonary perfusion scintigraphy in children]. Minerva Pediatr 1984; 36:231-45. [PMID: 6738477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
27
|
Mussa GC, Bona G, Cordero di Montezemolo L, Silvestro L, Italiano F, Ardissone P. [Thyrotropic and thyroid function after antineoplastic treatment in infants]. Minerva Pediatr 1982; 34:151-9. [PMID: 7087925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
28
|
Mussa GC, Castello D, Bona G, Silvestro L, Italiano F. [Radio-isotopic function tests in chronic pulmonary diseases]. Minerva Pediatr 1982; 34:17-24. [PMID: 7070357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
29
|
Bona G, Italiano F, Ardissone P. [Syndrome caused by surfactant deficiency and ventilatory dysfunction in the newborn infant. Clinico-radiological diagnostic problems]. Minerva Pediatr 1981; 33:117-26. [PMID: 6894628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
30
|
Ardissone P, Pecco P, Italiano F. [Current pathogenetic and therapeutic aspects of the Kasabach-Merrit syndrome]. Minerva Pediatr 1980; 32:1047-56. [PMID: 7192796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
31
|
Italiano F, Carelli E, Prato G, Bonardi R, Triolo R. [Goodpasture's syndrome. Observations on a case]. Minerva Med 1978; 69:1749-59. [PMID: 351462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Following a review of the most recent aetiopathogenetic theories and therapeutic records of Goodpasture's syndrome, a personal case is reported. Stress is laid on the extreme clinical variability of the disease and on the role which disseminated intravascular clotting can have on its course.
Collapse
|
32
|
Triolo R, Carelli E, D'Alessio R, Italiano F. [Renal tubular acidosis during a course of liver cirrhosis]. Minerva Med 1977; 68:3627-42. [PMID: 593585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In a group of 23 patients suffering from liver cirrhosis, metabolic acidosis was always observed, in most cases corrected by respiratory alkalosis. In 8,6% of cases a tubular renal acidosis (type I), in 8,6% (type II) and 8,6% a loss of urinary bicarbonate without acidosis were observed.
Collapse
|