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Taiti C, Masi E, Flamminii F, Di Mattia C, Mancuso S, Marone E. Does the Harvest Type Affect Olive Health? Influence of the Harvesting System and Storage Time on the Chemical, Volatile and Sensory Qualities of Extra Virgin Olive Oils. Plants (Basel) 2023; 12:3843. [PMID: 38005740 PMCID: PMC10674536 DOI: 10.3390/plants12223843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/10/2023] [Accepted: 11/12/2023] [Indexed: 11/26/2023]
Abstract
With the aim of investigating the effect of bruising and its development during the postharvest time, olive fruits (Frantoio and Moraiolo), manually and mechanically harvested, were stored in climatic chambers at two different temperatures (5 °C and 18 °C) for five days. Visual observations highlighted changes in the olive peel with discoloration in the damaged areas and tissue bruising. Olive fruit polyphenols, volatile organic compounds (VOCs) and other oil quality parameters (phenolic content, free acidity and peroxide index) and sensory assessment were evaluated. Analyses were carried out on fruits and experimental extra virgin oils at harvesting and after 5 days of fruit storage. The results highlight that low-temperature storage (5 °C for 5 days) may contribute to the maintenance of high olive oil quality, and the quality of olives stored at room temperature drastically decreases after 5 days of storage. Moreover, mechanical harvesting, compared to manual harvesting, does not seem to affect the final oil quality, at least at harvesting, but seems to determine differences in the long-term storage period. Finally, the samples stored at 18 °C showed a quality deterioration with the development of sensorial defects.
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Affiliation(s)
- Cosimo Taiti
- Department of Agri-Food and Environmental Science, University of Florence, Sesto Fiorentino, 50019 Firenze, Italy; (E.M.); (S.M.)
| | - Elisa Masi
- Department of Agri-Food and Environmental Science, University of Florence, Sesto Fiorentino, 50019 Firenze, Italy; (E.M.); (S.M.)
| | - Federica Flamminii
- Department of Innovative Technologies in Medicine and Dentistry, University “G. d’Annunzio” of Chieti-Pescara, Via dei Vestini, 66100 Chieti, Italy;
| | - Carla Di Mattia
- Department of Biosciences and Technologies for Agriculture, Food and Environment, University of Teramo, Via R. Balzarini 1, 64100 Teramo, Italy; (C.D.M.); (E.M.)
| | - Stefano Mancuso
- Department of Agri-Food and Environmental Science, University of Florence, Sesto Fiorentino, 50019 Firenze, Italy; (E.M.); (S.M.)
| | - Elettra Marone
- Department of Biosciences and Technologies for Agriculture, Food and Environment, University of Teramo, Via R. Balzarini 1, 64100 Teramo, Italy; (C.D.M.); (E.M.)
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2
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Taiti C, Di Matteo G, Spano M, Vinciguerra V, Masi E, Mannina L, Garzoli S. Metabolomic Approach Based on Analytical Techniques for the Detection of Secondary Metabolites from Humulus lupulus L. Dried Leaves. Int J Mol Sci 2023; 24:13732. [PMID: 37762036 PMCID: PMC10531422 DOI: 10.3390/ijms241813732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Currently, the leaves of the hop plant (Humulus lupulus L.) are an unexploited and still little-investigated agricultural by-product. In our study, with the aim of exploring the metabolome of dried hop leaves (Chinook cultivar), a metabolomic approach was applied using multiple analytical tools such as SPME/GC-MS, GC-MS, PTR-ToF-MS, and NMR to identify the secondary metabolites. The obtained results showed the presence of a high number of components belonging to different chemical classes. In fact, thanks to the multi-methodological approach, volatile organic compounds (VOCs) with low molecular weight, terpenic compounds, fatty acids, sugars, amino acids, organic acids, and alcohols have been detected and identified. Among the revealed terpenes in the untreated matrix, the sesquiterpenes α-humulene, β-caryophyllene, and α-copaene were the most abundant. Among the saturated and unsaturated fatty acids, palmitic and linolenic acids, respectively, were those with the highest relative percentages. Particularly relevant was the sugar content, where sucrose was the main exponent while glutamate and asparagine were the principal detected amino acids. Conversely, alcohols and organic acids were the least abundant compound classes, and xanthohumol was also identified in the methanolic extract.
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Affiliation(s)
- Cosimo Taiti
- Department of Agriculture, Food, Environmental and Forest, Università di Firenze, 50019 Firenze, Italy; (C.T.); (E.M.)
| | - Giacomo Di Matteo
- Department of Chemistry and Technology of Drug, Sapienza University, 00185 Rome, Italy; (G.D.M.); (M.S.); (L.M.)
| | - Mattia Spano
- Department of Chemistry and Technology of Drug, Sapienza University, 00185 Rome, Italy; (G.D.M.); (M.S.); (L.M.)
| | - Vittorio Vinciguerra
- Department for Innovation in Biological Systems, Food and Forestry, University of Tuscia, 01100 Viterbo, Italy;
| | - Elisa Masi
- Department of Agriculture, Food, Environmental and Forest, Università di Firenze, 50019 Firenze, Italy; (C.T.); (E.M.)
| | - Luisa Mannina
- Department of Chemistry and Technology of Drug, Sapienza University, 00185 Rome, Italy; (G.D.M.); (M.S.); (L.M.)
| | - Stefania Garzoli
- Department of Chemistry and Technology of Drug, Sapienza University, 00185 Rome, Italy; (G.D.M.); (M.S.); (L.M.)
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3
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Galli C, Pellegrinelli L, Giardina F, Ferrari G, Uceda Renteria SC, Novazzi F, Masi E, Pagani E, Piccirilli G, Mauro MV, Binda S, Corvaro B, Tiberio C, Lalle E, Maggi F, Russo C, Ranno S, Vian E, Pariani E, Baldanti F, Piralla A. On the lookout for influenza viruses in Italy during the 2021-2022 season: Along came A(H3N2) viruses with a new phylogenetic makeup of their hemagglutinin. Virus Res 2023; 324:199033. [PMID: 36581046 DOI: 10.1016/j.virusres.2022.199033] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 10/14/2022] [Revised: 12/22/2022] [Accepted: 12/24/2022] [Indexed: 12/27/2022]
Abstract
AIMS To assess influenza viruses (IVs) circulation and to evaluate A(H3N2) molecular evolution during the 2021-2022 season in Italy. MATERIALS AND METHODS 12,393 respiratory specimens (nasopharyngeal swabs or broncho-alveolar lavages) collected from in/outpatients with influenza illness in the period spanning from January 1, 2022 (week 2022-01) to May 31, 2022 (week 2022-22) were analysed to identify IV genome and were molecularly characterized by 12 laboratories throughout Italy. A(H3N2) evolution was studied by conducting an in-depth phylogenetic analysis of the hemagglutinin (HA) gene sequences. The predicted vaccine efficacy (pVE) of vaccine strain against circulating A(H3N2) viruses was estimated using the sequence-based Pepitope model. RESULTS The overall IV-positive rate was 7.2% (894/12,393), all were type A IVs. Almost all influenza A viruses (846/894; 94.6%) were H3N2 that circulated in Italy with a clear epidemic trend, with 10% positivity rate threshold crossed for six consecutive weeks from week 2022-11 to week 2022-16. According to the phylogenetic analysis of a subset of A(H3N2) strains (n=161), the study HA sequences were distributed into five different genetic clusters, all of them belonging to the clade 3C.2a, sub-clade 3C.2a1 and the genetic subgroup 3C.2a1b.2a.2. The selective pressure analysis of A(H3N2) sequences showed evidence of diversifying selection particularly in the amino acid position 156. The comparison between the predicted amino acid sequence of the 2021-2022 vaccine strain (A/Cambodia/e0826360/2020) and the study strains revealed 65 mutations in 59 HA amino acid positions, including the substitution H156S and Y159N in antigenic site B, within major antigenic sites adjacent to the receptor-binding site, suggesting the presence of drifted strains. According to the sequence-based Pepitope model, antigenic site B was the dominant antigenic site and the p(VE) against circulating A(H3N2) viruses was estimated to be -28.9%. DISCUSSION AND CONCLUSION After a long period of very low IV activity since public health control measures have been introduced to face COVID-19 pandemic, along came A(H3N2) with a new phylogenetic makeup. Although the delayed 2021-2022 influenza season in Italy was characterized by a significant reduction of the width of the epidemic curve and in the intensity of the influenza activity compared to historical data, a marked genetic diversity of the HA of circulating A(H3N2) strains was observed. The identification of the H156S and Y159N substitutions within the main antigenic sites of most HA sequences also suggested the circulation of drifted variants with respect to the 2021-2022 vaccine strain. Molecular surveillance plays a critical role in the influenza surveillance architecture and it has to be strengthened also at local level to timely assess vaccine effectiveness and detect novel strains with potential impact on public health.
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Affiliation(s)
- Cristina Galli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Laura Pellegrinelli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Federica Giardina
- Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Guglielmo Ferrari
- Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Federica Novazzi
- Ospedale di Circolo e Fondazione Macchi, ASST Sette Laghi, Varese, Italy; University of Insubria, Varese, Italy
| | - Elisa Masi
- Laboratorio Aziendale di Microbiologia e Virologia, Hospital of Bolzano (SABES-ASDAA), Bolzano-Bozen, Italy
| | - Elisabetta Pagani
- Laboratorio Aziendale di Microbiologia e Virologia, Hospital of Bolzano (SABES-ASDAA), Bolzano-Bozen, Italy
| | - Giulia Piccirilli
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Maria Vittoria Mauro
- Microbiology & Virology Unit, Annunziata Hub Hospital, Azienda Ospedaliera di Cosenza, Cosenza, Italy
| | - Sandro Binda
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Benedetta Corvaro
- Virology Laboratory, Azienda Ospedaliera Ospedali Riuniti di Ancona, Ancona, Italy
| | - Claudia Tiberio
- Microbiology and Virology, Cotugno Hospital AORN dei Colli, Naples, Italy
| | - Eleonora Lalle
- Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani, Rome, Italy
| | - Fabrizio Maggi
- Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani, Rome, Italy
| | - Cristina Russo
- Department of Diagnostic and Laboratory Medicine, Unit of Microbiology and Diagnostic Immunology, Bambino Gesù Children Hospital IRCCS, Rome, Italy
| | - Stefania Ranno
- Department of Diagnostic and Laboratory Medicine, Unit of Microbiology and Diagnostic Immunology, Bambino Gesù Children Hospital IRCCS, Rome, Italy
| | - Elisa Vian
- Microbiology Unit, Azienda ULSS2 Marca Trevigiana, Treviso, Italy
| | - Elena Pariani
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
| | - Fausto Baldanti
- Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy; Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Antonio Piralla
- Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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4
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Vanoni S, Matulevicius A, Avdiu B, Scantamburlo G, Ulekleiv C, Brzoska PM, Furtado MR, Feenstra JDM, Rico A, Gandhi M, Giacobazzi E, Masi E, Paulmichl M, Nofziger C. SARS-CoV-2 variants of concern surveillance including Omicron using RT-PCR–based genotyping offers comparable performance to whole genome sequencing. Front Cell Infect Microbiol 2022; 12:960065. [PMID: 36405967 PMCID: PMC9670535 DOI: 10.3389/fcimb.2022.960065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 10/04/2022] [Indexed: 11/06/2022] Open
Abstract
Known SARS-CoV-2 variants of concern (VOCs) can be detected and differentiated using an RT-PCR–based genotyping approach, which offers quicker time to result, lower cost, higher flexibility, and use of the same laboratory instrumentation for detection of SARS-CoV-2 when compared with whole genome sequencing (WGS). In the current study, we demonstrate how we applied a genotyping approach for identification of all VOCs and that such technique can offer comparable performance to WGS for identification of known SARS-CoV-2 VOCs, including more recent strains, Omicron BA.1 and BA.2.
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Affiliation(s)
- Simone Vanoni
- PharmGenetix GmbH, Niederalm/Anif, Austria
- *Correspondence: Simone Vanoni,
| | | | | | | | - Camilla Ulekleiv
- Thermo Fisher Scientific, South San Francisco, CA, United States
| | - Pius M. Brzoska
- Thermo Fisher Scientific, South San Francisco, CA, United States
| | | | | | - Alain Rico
- Thermo Fisher Scientific, South San Francisco, CA, United States
| | - Manoj Gandhi
- Thermo Fisher Scientific, South San Francisco, CA, United States
| | - Elisabetta Giacobazzi
- Azienda sanitaria dell’Alto Adige, Laboratorio di microbiologia e virologia, Bolzano, Italy
| | - Elisa Masi
- Azienda sanitaria dell’Alto Adige, Laboratorio di microbiologia e virologia, Bolzano, Italy
| | - Markus Paulmichl
- Department of Personalised Medicine, Privatklinik Maria Hilf GmbH, Klagenfurt, Austria
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5
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Fevola C, Campana S, Dolce D, Ravenni N, Bianchimani C, Santiini G, Francalanci M, Cavicchi M, Galici V, Neri A, Terlizzi V, Innocenti D, Masi E, Ferrari B, Castellani C, Masolini M, Camera E, Orioli T, Maggiore G, Taccetti G. 493 Bacterial and viral upper and lower airways infection in people with cystic fibrosis in stable condition. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)01183-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Bianchimani C, Campana S, Dolce D, Ravenni N, Fevola C, Santini G, Francalanci M, Cavicchi M, Galici V, Neri A, Terlizzi V, Innocenti D, Masi E, Ferrari B, Castellani C, Masolini M, Camera E, Orioli T, Maggiore G, Taccetti G. P118 Airways respiratory viral infections in cystic fibrosis. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00451-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Bianchimani C, Dolce D, Campana S, Ravenni N, Fevola C, Santini G, Francalanci M, Cavicchi M, Galici V, Neri A, Terlizzi V, Innocenti D, Masi E, Ferrari B, Castellani C, Masolini M, Camera E, Orioli T, Bresci S, Borchi B, Cavallo A, Mencarini J, Maggiore G, Taccetti G. P142 Upper and lower airways microbiological status in cystic fibrosis patients in stable conditions and in lung transplant patients. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00473-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Monini M, Ostanello F, Vignolo E, Pagani E, Gamper S, Spertini S, Masi E, Rabini M, Stenico A, Poznanski E, Di Bartolo I. Occurrence of two Norovirus outbreaks in the same cafeteria in one week. New Microbiol 2019; 42:156-160. [PMID: 31305934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 06/10/2023]
Abstract
In October 2017, two outbreaks of gastroenteritis (GE) occurred among patrons of a cafeteria in Italy in one week. Virological and bacteria investigations on stool samples, environment and food were conducted to identify the infectious agents and the possible source of infection. Forty-five cases occurred in the two outbreaks, including 13 laboratory-confirmed cases of norovirus GI. Nine staff members were interviewed, six were confirmed positive for NoV GI and 3 experienced GE symptoms. Bacteria faecal indicators and other bacteria pathogens were not detected in either environmental swab samples or food. A low level of NoV GII was detected in two environmental swab samples. The same GI.6 strain was identified in cases related to both outbreaks, suggesting a common source of infection. Since the two outbreaks occurred in one week, the NoV contamination could have persisted in the cafeteria. Furthermore, virological investigation revealed confirmed cases among food handlers who had worked at the cafeteria between and during the two outbreaks. Several studies highlighted the importance of excluding symptomatic food handlers to prevent contamination of foods and environment.
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Affiliation(s)
- Marina Monini
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
| | - Fabio Ostanello
- Department of Veterinary Medical Science, University of Bologna, Ozzano dell'Emilia (BO), Italy
| | - Edoardo Vignolo
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
| | - Elisabetta Pagani
- Laboratory of Microbiology and Virology, Azienda Sanitaria dell'Alto Adige, Bolzano, Italy
| | - Sabine Gamper
- Hygiene and Public Health Service, Azienda Sanitaria dell'Alto Adige, Bolzano, Italy
| | - Silvia Spertini
- Hygiene and Public Health Service, Azienda Sanitaria dell'Alto Adige, Bolzano, Italy
| | - Elisa Masi
- Laboratory of Microbiology and Virology, Azienda Sanitaria dell'Alto Adige, Bolzano, Italy
| | - Michela Rabini
- Istituto Zooprofilattico Sperimentale delle Venezie, Bolzano, Italy
| | - Alberta Stenico
- Biological laboratory, Agency for Environment and Climate Protection of the Autonomous Province of Bolzano, Italy
| | - Elisa Poznanski
- Biological laboratory, Agency for Environment and Climate Protection of the Autonomous Province of Bolzano, Italy
| | - Ilaria Di Bartolo
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
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9
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Aschbacher R, Romagnoli F, Masi E, Pasquetto V, Perino F, Eisendle K, Braghetto M, Messini S, Delbue S, Pagani E. Molecular epidemiology of non-viral sexually transmitted infections in the central Alpine province of Bolzano, northern Italy from April 2016 to March 2017. Microbiol Med 2018. [DOI: 10.4081/mm.2018.7852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vaginalis, Ureaplasma parvum, Ureaplasma urealyticum, Mycoplasma hominis and Mycoplasma genitalium are established or presumed as (??) STI pathogens. The present study aims at ng describing the one-year molecular epidemiology of these seven pathogens in the Province of Bolzano, Northern Italy. From April 2016 to March 2017, a total of 2,949 patients, mainly females, were enrolled and 3,427 urine, vaginal, endocervical and/or urethral samples were subjected to simultaneous analysis of the seven pathogens by means of Real Time Polymerase Chain Reaction (AnyplexTM II STI-7 Detection Kit Seegene, Seoul, Korea). At least one of the seven microorganisms was detected in 40.7% of patients, with an uneven distribution: 43.1% in females (F) and 29.8% (p<0.001) in males (M). The prevalence of microorganisms was as follows: 30.3% U. parvum (F: 35.6%, M: 8.3%), 6.9% U. urealyticum (F: 6.8%, M: 7.0%), 4.9% M. hominis (F: 5.4%, M: 2.3%), 4.9% C. trachomatis (F: 3.4%, M: 11.4%), 1.1% M. genitalium (F: 1.0%, M: 1.2%), 1.2% N. gonorrhoeae (F: 0.17%, M: 5.6%) and 0.40% T. vaginalis (F: 0.38%, M: 0.53%). Mixed infections were detected in 7.4% of patients. The highest prevalence was observed for U. parvum, followed by U. urealyticum and M. hominis and a significant presence of multi-pathogen infections was registered.
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Rodrigo-Moreno A, Bazihizina N, Azzarello E, Masi E, Tran D, Bouteau F, Baluska F, Mancuso S. Root phonotropism: Early signalling events following sound perception in Arabidopsis roots. Plant Sci 2017; 264:9-15. [PMID: 28969806 DOI: 10.1016/j.plantsci.2017.08.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 04/20/2017] [Revised: 07/31/2017] [Accepted: 08/01/2017] [Indexed: 05/10/2023]
Abstract
Sound is a fundamental form of energy and it has been suggested that plants can make use of acoustic cues to obtain information regarding their environments and alter and fine-tune their growth and development. Despite an increasing body of evidence indicating that it can influence plant growth and physiology, many questions concerning the effect of sound waves on plant growth and the underlying signalling mechanisms remains unknown. Here we show that in Arabidopsis thaliana, exposure to sound waves (200Hz) for 2 weeks induced positive phonotropism in roots, which grew towards to sound source. We found that sound waves triggered very quickly (within minutes) an increase in cytosolic Ca2+, possibly mediated by an influx through plasma membrane and a release from internal stock. Sound waves likewise elicited rapid reactive oxygen species (ROS) production and K+ efflux. Taken together these results suggest that changes in ion fluxes (Ca2+ and K+) and an increase in superoxide production are involved in sound perception in plants, as previously established in animals.
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Affiliation(s)
- Ana Rodrigo-Moreno
- Department of Agrifood Production and Environmental Sciences - Università degli Studi di Firenze, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy.
| | - Nadia Bazihizina
- Department of Agrifood Production and Environmental Sciences - Università degli Studi di Firenze, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
| | - Elisa Azzarello
- Department of Agrifood Production and Environmental Sciences - Università degli Studi di Firenze, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
| | - Elisa Masi
- Department of Agrifood Production and Environmental Sciences - Università degli Studi di Firenze, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
| | - Daniel Tran
- Université Paris Diderot, Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain, Paris, France
| | - François Bouteau
- Université Paris Diderot, Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain, Paris, France
| | | | - Stefano Mancuso
- Department of Agrifood Production and Environmental Sciences - Università degli Studi di Firenze, Viale delle Idee 30, 50019 Sesto Fiorentino, Florence, Italy
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11
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Abstract
Plants emission of Volatile Organic Compounds (VOCs) is involved in a wide class of ecological functions, as VOCs play a crucial role in plants interactions with biotic and abiotic factors. Accordingly, they vary widely across species and underpin differences in ecological strategy. In this paper, VOCs spontaneously emitted by 109 plant species (belonging to 56 different families) have been qualitatively and quantitatively analysed in order to provide an alternative classification of plants species. In particular, by using bipartite networks methodology from Complex Network Theory, and through the application of community detection algorithms, we show that is possible to classify species according to chemical classes such as terpenes and sulfur compounds. Such complex network analysis allows to uncover hidden plants relationships related to their evolutionary and adaptation to the environment story.
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Affiliation(s)
- Gianna Vivaldo
- National Research Council, Geosciences and Earth Resources (IGG), Pisa, Italy
| | - Elisa Masi
- Università di Firenze, Dipartimento di Scienze delle Produzioni Agroalimentari e dell'Ambiente (DISPAA), Viale delle Idee, 30, 50019, Sesto Fiorentino (Firenze), Italy.
| | - Cosimo Taiti
- Università di Firenze, Dipartimento di Scienze delle Produzioni Agroalimentari e dell'Ambiente (DISPAA), Viale delle Idee, 30, 50019, Sesto Fiorentino (Firenze), Italy
| | - Guido Caldarelli
- IMT School for Advanced Studies, Piazza San Francesco 19, 55100, Lucca, Italy.,Istituto dei Sistemi Complessi (ISC), Roma, Italy.,London Institute for Mathematical Sciences, 35a South St. Mayfair, W1K 2XF, London, UK
| | - Stefano Mancuso
- Università di Firenze, Dipartimento di Scienze delle Produzioni Agroalimentari e dell'Ambiente (DISPAA), Viale delle Idee, 30, 50019, Sesto Fiorentino (Firenze), Italy
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12
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Marone E, Masi E, Taiti C, Pandolfi C, Bazihizina N, Azzarello E, Fiorino P, Mancuso S. Sensory, spectrometric (PTR-ToF-MS) and chemometric analyses to distinguish extra virgin from virgin olive oils. J Food Sci Technol 2017; 54:1368-1376. [PMID: 28559595 DOI: 10.1007/s13197-017-2541-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 10/13/2016] [Accepted: 02/08/2017] [Indexed: 11/30/2022]
Abstract
Olive oil samples were obtained from six cultivars grown in different environments, and graded by chemical analyses as extra virgin (EVOOs). These were evaluated for flavors and off-flavors, and relative VOCs spectrum as determined by PTR-ToF-MS. A hierarchical clustering of Panel test data separated olive oil in three groups, one including the samples with perceived off-flavor (VOOs), regardless of cultivar and environment. The Pearson's correlation coefficients between the mass data from PTR-ToF-MS and the sensory characteristics perceived by the Panel test were determined. A mass-to-sensory attributes correlation index was calculated. A color-coded card was built up based on the intensities (ncps) of five selected protonated mass data that was able to distinguish EVOOs from VOOs olive oil samples.
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Affiliation(s)
- Elettra Marone
- Faculty of Biosciences and Technologies for Agriculture Food and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy
| | - Elisa Masi
- Department of Agrifood Production and Environmental Science, University of Florence, Viale delle Idee, 30, 50019 Sesto Fiorentino, Florence Italy
| | - Cosimo Taiti
- Department of Agrifood Production and Environmental Science, University of Florence, Viale delle Idee, 30, 50019 Sesto Fiorentino, Florence Italy
| | - Camilla Pandolfi
- Department of Agrifood Production and Environmental Science, University of Florence, Viale delle Idee, 30, 50019 Sesto Fiorentino, Florence Italy
| | - Nadia Bazihizina
- Department of Agrifood Production and Environmental Science, University of Florence, Viale delle Idee, 30, 50019 Sesto Fiorentino, Florence Italy
| | - Elisa Azzarello
- Department of Agrifood Production and Environmental Science, University of Florence, Viale delle Idee, 30, 50019 Sesto Fiorentino, Florence Italy
| | - Piero Fiorino
- Department of Agrifood Production and Environmental Science, University of Florence, Viale delle Idee, 30, 50019 Sesto Fiorentino, Florence Italy
| | - Stefano Mancuso
- Department of Agrifood Production and Environmental Science, University of Florence, Viale delle Idee, 30, 50019 Sesto Fiorentino, Florence Italy
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13
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Masi E, Taiti C, Vignolini P, Petrucci AW, Giordani E, Heimler D, Romani A, Mancuso S. Polyphenols and aromatic volatile compounds in biodynamic and conventional ‘Golden Delicious’ apples (Malus domestica Bork.). Eur Food Res Technol 2017. [DOI: 10.1007/s00217-017-2861-y] [Citation(s) in RCA: 4] [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: 10/20/2022]
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14
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Affiliation(s)
- Francesco Brigo
- Department of Neuroscience, Biomedicine and Movement, University of Verona, Verona, Italy
- Division of Neurology, Franz Tappeiner Hospital, Merano, Italy
| | - Elisabetta Pagani
- Laboratorio Aziendale di Microbiologia e Virologia, Comprensorio Sanitario di Bolzano, Bolzano, Italy
| | - Frediano Tezzon
- Division of Neurology, Franz Tappeiner Hospital, Merano, Italy
| | - Elisa Masi
- Laboratorio Aziendale di Microbiologia e Virologia, Comprensorio Sanitario di Bolzano, Bolzano, Italy
| | - Raffaele Nardone
- Division of Neurology, Franz Tappeiner Hospital, Merano, Italy
- Department of Neurology, Christian Doppler Medical Centre, Paracelsus Medical University, Salzburg, Austria
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15
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Abstract
In animals, the ability to move has evolved as an important means of protection from predators and for enhancing nutrient uptake. In the animal kingdom, an individual's movements may become coordinated with those of other individuals that belong to the same group, which leads, for example, to the beautiful collective patterns that are observed in flocks of birds and schools of fish or in animal migration. Land plants, however, are fixed to the ground, which limits their movement and, apparently, their interactions and collective behaviors. We show that emergent maize plants grown in a group exhibit synchronized oscillatory motions that may be in-phase or anti-phase. These oscillations occur in short bursts and appear when the leaves rupture from the coleoptile tip. The appearance of these oscillations indicates an abrupt increase in the plant growth rate, which may be associated with a sudden change in the energy uptake for photosynthesis. Our results suggest that plant shoots behave as a complex network of biological oscillators, interacting through biophysical links, e.g. chemical substances or electric signals.
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Affiliation(s)
- Marzena Ciszak
- Gonzaga University in Florence, Florence, Italy; CNR-Istituto Nazionale di Ottica, Florence, Italy
| | - Elisa Masi
- Department of Agrifood and Environmental Science, University of Florence , Florence, Italy
| | - František Baluška
- Department of Plant Cell Biology Institute of Cellular and Molecular Botany (IZMB), University of Bonn , Bonn, Germany
| | - Stefano Mancuso
- Department of Agrifood and Environmental Science, University of Florence , Florence, Italy
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16
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Masi E, Ciszak M, Colzi I, Adamec L, Mancuso S. Resting electrical network activity in traps of the aquatic carnivorous plants of the genera Aldrovanda and Utricularia. Sci Rep 2016; 6:24989. [PMID: 27117956 PMCID: PMC4846995 DOI: 10.1038/srep24989] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 04/04/2016] [Indexed: 11/17/2022] Open
Abstract
In this study the MEA (multielectrode array) system was used to record electrical responses of intact and halved traps, and other trap-free tissues of two aquatic carnivorous plants, Aldrovanda vesiculosa and Utricularia reflexa. They exhibit rapid trap movements and their traps contain numerous glands. Spontaneous generation of spikes with quite uniform shape, propagating across the recording area, has been observed for all types of sample. In the analysis of the electrical network, higher richer synchronous activity was observed relative to other plant species and organs previously described in the literature: indeed, the time intervals between the synchronized clusters (the inter-spike intervals) create organized patterns and the propagation times vary non-linearly with the distance due to this synchronization. Interestingly, more complex electrical activity was found in traps than in trap-free organs, supporting the hypothesis that the nature of the electrical activity may reflect the anatomical and functional complexity of different organs. Finally, the electrical activity of functionally different traps of Aldrovanda (snapping traps) and Utricularia (suction traps) was compared and some differences in the features of signal propagation were found. According to these results, a possible use of the MEA system for the study of different trap closure mechanisms is proposed.
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Affiliation(s)
- Elisa Masi
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - Marzena Ciszak
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
- CNR, National Institute of Optics (INO), L.go E. Fermi 6, 50125 Florence, Italy
| | - Ilaria Colzi
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - Lubomir Adamec
- Institute of Botany of the Czech Academy of Sciences, Section of Plant Ecology, Dukelská 135, CZ-379 82 Třeboň, Czech Republic
| | - Stefano Mancuso
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
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17
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Chatterjee SK, Das S, Maharatna K, Masi E, Santopolo L, Mancuso S, Vitaletti A. Exploring strategies for classification of external stimuli using statistical features of the plant electrical response. J R Soc Interface 2015; 12:20141225. [PMID: 25631569 DOI: 10.1098/rsif.2014.1225] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Plants sense their environment by producing electrical signals which in essence represent changes in underlying physiological processes. These electrical signals, when monitored, show both stochastic and deterministic dynamics. In this paper, we compute 11 statistical features from the raw non-stationary plant electrical signal time series to classify the stimulus applied (causing the electrical signal). By using different discriminant analysis-based classification techniques, we successfully establish that there is enough information in the raw electrical signal to classify the stimuli. In the process, we also propose two standard features which consistently give good classification results for three types of stimuli--sodium chloride (NaCl), sulfuric acid (H₂SO₄) and ozone (O₃). This may facilitate reduction in the complexity involved in computing all the features for online classification of similar external stimuli in future.
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Affiliation(s)
- Shre Kumar Chatterjee
- School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK
| | - Saptarshi Das
- School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK
| | - Koushik Maharatna
- School of Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK
| | - Elisa Masi
- Department of Agri-food Production and Environmental Science (DISPAA), University of Florence, viale delle Idee 30, Sesto Fiorentino, Florence 50019, Italy
| | - Luisa Santopolo
- Department of Agri-food Production and Environmental Science (DISPAA), University of Florence, viale delle Idee 30, Sesto Fiorentino, Florence 50019, Italy
| | - Stefano Mancuso
- Department of Agri-food Production and Environmental Science (DISPAA), University of Florence, viale delle Idee 30, Sesto Fiorentino, Florence 50019, Italy
| | - Andrea Vitaletti
- WLAB S.r.L., via Adolfo Ravà 124, Rome 00142, Italy DIAG, SAPIENZA Università di Roma, via Ariosto 25, Rome 00185, Italy
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18
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Abstract
In nature, biofilms are the most common form of bacterial growth. In biofilms, bacteria display coordinated behaviour to perform specific functions. Here, we investigated electrical signalling as a possible driver in biofilm sociobiology. Using a multi-electrode array system that enables high spatio-temporal resolution, we studied the electrical activity in two biofilm-forming strains and one non-biofilm-forming strain. The action potential rates monitored during biofilm-forming bacterial growth exhibited a one-peak maximum with a long tail, corresponding to the highest biofilm development. This peak was not observed for the non-biofilm-forming strain, demonstrating that the intensity of the electrical activity was not linearly related to the bacterial density, but was instead correlated with biofilm formation. Results obtained indicate that the analysis of the spatio-temporal electrical activity of bacteria during biofilm formation can open a new frontier in the study of the emergence of collective microbial behaviour.
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Affiliation(s)
- Elisa Masi
- DISPAA-Department of Agrifood and Environmental Science, University of Florence, Florence, Italy
| | - Marzena Ciszak
- DISPAA-Department of Agrifood and Environmental Science, University of Florence, Florence, Italy CNR-Istituto Nazionale di Ottica, Florence, Italy
| | - Luisa Santopolo
- DISPAA-Department of Agrifood and Environmental Science, University of Florence, Florence, Italy
| | - Arcangela Frascella
- DISPAA-Department of Agrifood and Environmental Science, University of Florence, Florence, Italy
| | - Luciana Giovannetti
- DISPAA-Department of Agrifood and Environmental Science, University of Florence, Florence, Italy
| | - Emmanuela Marchi
- DISPAA-Department of Agrifood and Environmental Science, University of Florence, Florence, Italy
| | - Carlo Viti
- DISPAA-Department of Agrifood and Environmental Science, University of Florence, Florence, Italy
| | - Stefano Mancuso
- DISPAA-Department of Agrifood and Environmental Science, University of Florence, Florence, Italy
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19
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Dolce D, Bresci S, Masi E, Campana S, Braggion C, Taccetti G. 71 Pseudomonas aeruginosa in paranasal sinuses and in lower airways in cystic fibrosis patients. J Cyst Fibros 2015. [DOI: 10.1016/s1569-1993(15)30248-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Taiti C, Costa C, Menesatti P, Comparini D, Bazihizina N, Azzarello E, Masi E, Mancuso S. Class-modeling approach to PTR-TOFMS data: a peppers case study. J Sci Food Agric 2015; 95:1757-1763. [PMID: 24871623 DOI: 10.1002/jsfa.6761] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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: 03/06/2014] [Revised: 05/09/2014] [Accepted: 05/22/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Proton transfer reaction-mass spectrometry (PTR-MS), in its recently developed implementation based on time-of-flight mass spectrometry (PTR-TOFMS), was used to rapidly determine the volatile compounds present in fruits of Capsicum spp. RESULTS We analyzed the volatile organic compounds emission profile of freshly cut chili peppers belonging to three species and 33 different cultivars. PTR-TOFMS data, analyzed with appropriate and advanced multivariate class-modeling approaches, perfectly discriminated among the three species (100% correct classification in validation set). VIP (variable importance in projection) scores were used to select the 15 most important volatile compounds in discriminating the species. The best candidates for Capsicum spp. were compounds with measured m/z of 63.027, 101.096 and 107.050, which were, respectively, tentatively identified as dimethyl sulfide, hexanal and benzaldehyde. CONCLUSIONS Based on the promising results, the possibility of introducing multivariate class-modeling techniques, different from the classification approaches, in the field of volatile compounds analyses is discussed.
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Affiliation(s)
- Cosimo Taiti
- Università degli Studi di Firenze, Dipartimento di Scienze delle Produzioni Agroalimentari e dell'Ambiente, 50019, Sesto Fiorentino (FI), Italy
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21
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Masi E, Romani A, Pandolfi C, Heimler D, Mancuso S. PTR-TOF-MS analysis of volatile compounds in olive fruits. J Sci Food Agric 2015; 95:1428-1434. [PMID: 25060484 DOI: 10.1002/jsfa.6837] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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: 05/22/2014] [Revised: 07/01/2014] [Accepted: 07/21/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Volatile compounds of Cellina di Nardò and Ogliarola Barese, two typical Italian olive varieties, have been characterised at different ripening stages. Proton transfer reaction-time-of-flight-mass spectrometry (PTR-TOF-MS) was used for the first time on these fruits with the aim of characterising the volatile profile and, in the case of Ogliarola, the changes which may occur during the maturation process. RESULTS PTR-TOF-MS does not involve any sample pre-treatment, and allows high-resolution measurements, large spectra and small fragmentation of the volatiles. Therefore it allows both compound identification and data statistical treatments. In the present work, about 40 compounds that contribute to the discrimination between samples of the two varieties have been identified. CONCLUSIONS Three groups of compounds were identified: (1) compounds that are typical of mature fruits of Ogliarola, (2) compounds that tend to decrease during the change from green to mature fruits, and (3) compounds that increase during the maturation process.
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Affiliation(s)
- Elisa Masi
- Dipartimento di Scienze delle Produzioni Agroalimentari e dell'Ambiente (DISPAA), University of Florence, P.le delle Cascine 18, 50144, Florence, Italy
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22
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Taiti C, Costa C, Menesatti P, Caparrotta S, Bazihizina N, Azzarello E, Petrucci WA, Masi E, Giordani E. Use of volatile organic compounds and physicochemical parameters for monitoring the post-harvest ripening of imported tropical fruits. Eur Food Res Technol 2015. [DOI: 10.1007/s00217-015-2438-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Bazihizina N, Redwan M, Taiti C, Giordano C, Monetti E, Masi E, Azzarello E, Mancuso S. Root based responses account for Psidium guajava survival at high nickel concentration. J Plant Physiol 2015; 174:137-146. [PMID: 25462976 DOI: 10.1016/j.jplph.2014.10.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 08/22/2014] [Revised: 10/27/2014] [Accepted: 10/28/2014] [Indexed: 06/04/2023]
Abstract
The presence of Psidium guajava in polluted environments has been reported in recent studies, suggesting that this species has a high tolerance to the metal stress. The present study aims at a physiological characterization of P. guajava response to high nickel (Ni) concentrations in the root-zone. Three hydroponic experiments were carried out to characterize the effects of toxic Ni concentrations on morphological and physiological parameters of P. guajava, focusing on Ni-induced damages at the root-level and root ion fluxes. With up to 300μM NiSO4 in the root-zone, plant growth was similar to that in control plants, whereas at concentrations higher than 1000μM NiSO4 there was a progressive decline in plant growth and leaf gas exchange parameters; this occurred despite, at all considered concentrations, plants limited Ni(2+) translocation to the shoot, therefore avoiding shoot Ni(2+) toxicity symptoms. Maintenance of plant growth with 300μM Ni(2+) was associated with the ability to retain K(+) in the roots meanwhile 1000 and 3000μM NiSO4 led to substantial K(+) losses. In this study, root responses mirror all plant performances suggesting a direct link between root functionality and Ni(2+) tolerance mechanisms and plant survival. Considering that Ni was mainly accumulated in the root system, the potential use of P. guajava for Ni(2+) phytoextraction in metal-polluted soils is limited; nevertheless, the observed physiological changes indicate a good Ni(2+) tolerance up to 300μM NiSO4 suggesting a potential role for the phytostabilization of polluted soils.
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Affiliation(s)
- Nadia Bazihizina
- LINV - Department of Agrifood Production and Environmental Sciences - University of Florence, Viale delle Idee 30, 50019 Sesto F.no, Florence, Italy
| | - Mirvat Redwan
- LINV - Department of Agrifood Production and Environmental Sciences - University of Florence, Viale delle Idee 30, 50019 Sesto F.no, Florence, Italy
| | - Cosimo Taiti
- LINV - Department of Agrifood Production and Environmental Sciences - University of Florence, Viale delle Idee 30, 50019 Sesto F.no, Florence, Italy
| | - Cristiana Giordano
- Centro di Microscopie Elettroniche "Laura Bonzi" (Ce.M.E.), ICCOM, CNR, Via Madonna del Piano, 50019 Sesto F.no, Florence, Italy
| | - Emanuela Monetti
- LINV - Department of Agrifood Production and Environmental Sciences - University of Florence, Viale delle Idee 30, 50019 Sesto F.no, Florence, Italy
| | - Elisa Masi
- LINV - Department of Agrifood Production and Environmental Sciences - University of Florence, Viale delle Idee 30, 50019 Sesto F.no, Florence, Italy
| | - Elisa Azzarello
- LINV - Department of Agrifood Production and Environmental Sciences - University of Florence, Viale delle Idee 30, 50019 Sesto F.no, Florence, Italy.
| | - Stefano Mancuso
- LINV - Department of Agrifood Production and Environmental Sciences - University of Florence, Viale delle Idee 30, 50019 Sesto F.no, Florence, Italy
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Masi E, Ciszak M, Comparini D, Monetti E, Pandolfi C, Azzarello E, Mugnai S, Baluška F, Mancuso S. The electrical network of maize root apex is gravity dependent. Sci Rep 2015; 5:7730. [PMID: 25588706 PMCID: PMC4295110 DOI: 10.1038/srep07730] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [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: 07/23/2014] [Accepted: 12/09/2014] [Indexed: 12/25/2022] Open
Abstract
Investigations carried out on maize roots under microgravity and hypergravity revealed that gravity conditions have strong effects on the network of plant electrical activity. Both the duration of action potentials (APs) and their propagation velocities were significantly affected by gravity. Similarly to what was reported for animals, increased gravity forces speed-up APs and enhance synchronized electrical events also in plants. The root apex transition zone emerges as the most active, as well as the most sensitive, root region in this respect.
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Affiliation(s)
- Elisa Masi
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - Marzena Ciszak
- 1] LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy [2] CNR, National Institute of Optics (INO), L.go E. Fermi 6, 50125 Florence, Italy
| | - Diego Comparini
- 1] LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy [2] LINV@Kitakyushu Research Center, University of Kitakyushu, 808-0135 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka, Japan
| | - Emanuela Monetti
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - Camilla Pandolfi
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - Elisa Azzarello
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - Sergio Mugnai
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - Frantisek Baluška
- Department of Plant Cell Biology, Institute of Cellular and Molecular Botany (IZMB), University of Bonn, Kirschallee 1, D-53115 Bonn, Germany
| | - Stefano Mancuso
- LINV, Department of Agrifood Production and Environmental Sciences (DISPAA), University of Florence, viale delle Idee 30, 50019 Sesto Fiorentino (FI), Italy
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25
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Mugnai S, Pandolfi C, Masi E, Azzarello E, Monetti E, Comparini D, Voigt B, Volkmann D, Mancuso S. Oxidative stress and NO signalling in the root apex as an early response to changes in gravity conditions. Biomed Res Int 2014; 2014:834134. [PMID: 25197662 PMCID: PMC4150467 DOI: 10.1155/2014/834134] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 07/16/2014] [Indexed: 01/02/2023]
Abstract
Oxygen influx showed an asymmetry in the transition zone of the root apex when roots were placed horizontally on ground. The influx increased only in the upper side, while no changes were detected in the division and in the elongation zone. Nitric oxide (NO) was also monitored after gravistimulation, revealing a sudden burst only in the transition zone. In order to confirm these results in real microgravity conditions, experiments have been set up by using parabolic flights and drop tower. The production of reactive oxygen species (ROS) was also monitored. Oxygen, NO, and ROS were continuously monitored during normal and hyper- and microgravity conditions in roots of maize seedlings. A distinct signal in oxygen and NO fluxes was clearly detected only in the apex zone during microgravity, with no significant changes in normal and in hypergravity conditions. The same results were obtained by ROS measurement. The detrimental effect of D'orenone, disrupting the polarised auxin transport, on the onset of the oxygen peaks during the microgravity period was also evaluated. Results indicates an active role of NO and ROS as messengers during the gravitropic response, with probable implications in the auxin redistribution.
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Affiliation(s)
- Sergio Mugnai
- DISPAA, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Italy
- HSO-USB, ESTEC, European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, The Netherlands
| | - Camilla Pandolfi
- DISPAA, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Italy
| | - Elisa Masi
- DISPAA, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Italy
| | - Elisa Azzarello
- DISPAA, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Italy
| | - Emanuela Monetti
- DISPAA, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Italy
| | - Diego Comparini
- DISPAA, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Italy
| | - Boris Voigt
- IZMB, University of Bonn, Kirschallee 1, 53115 Bonn, Germany
| | - Dieter Volkmann
- IZMB, University of Bonn, Kirschallee 1, 53115 Bonn, Germany
| | - Stefano Mancuso
- DISPAA, University of Florence, Viale delle Idee 30, 50019 Sesto Fiorentino, Italy
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26
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Affiliation(s)
- P. Messeri
- a Centro di Studio per la Faunistica ed Ecologia Tropicali del Consiglio Nazionale delle Ricerche , Firenze
- b Dipartimento di Biologia Animale e Genetica , dell'Università di Firenze
- c Istituto di Fisiologia Veterinaria dell'Università di Torino
| | - E. Masi
- a Centro di Studio per la Faunistica ed Ecologia Tropicali del Consiglio Nazionale delle Ricerche , Firenze
- b Dipartimento di Biologia Animale e Genetica , dell'Università di Firenze
- c Istituto di Fisiologia Veterinaria dell'Università di Torino
| | - R. Piazza
- a Centro di Studio per la Faunistica ed Ecologia Tropicali del Consiglio Nazionale delle Ricerche , Firenze
- b Dipartimento di Biologia Animale e Genetica , dell'Università di Firenze
- c Istituto di Fisiologia Veterinaria dell'Università di Torino
| | - F. Dessì-Fulgheri
- a Centro di Studio per la Faunistica ed Ecologia Tropicali del Consiglio Nazionale delle Ricerche , Firenze
- b Dipartimento di Biologia Animale e Genetica , dell'Università di Firenze
- c Istituto di Fisiologia Veterinaria dell'Università di Torino
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27
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Masi E, Ciszak M, Stefano G, Renna L, Azzarello E, Pandolfi C, Mugnai S, Baluška F, Arecchi FT, Mancuso S. Spatiotemporal dynamics of the electrical network activity in the root apex. Proc Natl Acad Sci U S A 2009; 106:4048-53. [PMID: 19234119 PMCID: PMC2656202 DOI: 10.1073/pnas.0804640106] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Indexed: 11/18/2022] Open
Abstract
The study of electrical network systems, integrated with chemical signaling networks, is becoming a common trend in contemporary biology. Classical techniques are limited to the assessment of signals from doublets or triplets of cells at a fixed temporal bin width. At present, full characteristics of the electrical network distribution and dynamics in plant cells and tissues has not been established. Here, a 60-channels multielectrode array (MEA) is applied to study spatiotemporal characteristics of the electrical network activity of the root apex. Both intense spontaneous electrical activities and stimulation-elicited bursts of locally propagating electrical signals have been observed. Propagation of the spikes indicates the existence of excitable traveling waves in plants, similar to those observed in non-nerve electrogenic tissues of animals. Obtained data reveal synchronous electric activities of root cells emerging in a specific root apex region. The dynamic electrochemical activity of root apex cells is proposed to continuously integrate internal and external signaling for developmental adaptations in a changing environment.
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Affiliation(s)
- E. Masi
- Department of Horticulture, International Laboratory of Plant Neurobiology, University of Florence, Viale delle idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - M. Ciszak
- CNR-Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy
| | - G. Stefano
- Department of Horticulture, International Laboratory of Plant Neurobiology, University of Florence, Viale delle idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - L. Renna
- Department of Horticulture, International Laboratory of Plant Neurobiology, University of Florence, Viale delle idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - E. Azzarello
- Department of Horticulture, International Laboratory of Plant Neurobiology, University of Florence, Viale delle idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - C. Pandolfi
- Department of Horticulture, International Laboratory of Plant Neurobiology, University of Florence, Viale delle idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - S. Mugnai
- Department of Horticulture, International Laboratory of Plant Neurobiology, University of Florence, Viale delle idee 30, 50019 Sesto Fiorentino (FI), Italy
| | - F. Baluška
- Institut für Zelluläre und Molekulare Botanik, University of Bonn, Kirschallee 1, Bonn, Germany; and
| | - F. T. Arecchi
- CNR-Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy
- Department of Physics, University of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (FI), Italy
| | - S. Mancuso
- Department of Horticulture, International Laboratory of Plant Neurobiology, University of Florence, Viale delle idee 30, 50019 Sesto Fiorentino (FI), Italy
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Vignani R, Scali M, Masi E, Cresti M. Genomic variability in Vitis vinifera L. Sangiovese assessed by microsatellite and non-radioactive AFLP test. ELECTRON J BIOTECHN 2002. [DOI: 10.2225/vol5-issue1-fulltext-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Apicella A, Masi E, Nicolais L, Zarone F, de Rosa N, Valletta G. A finite-element model study of occlusal schemes in full-arch implant restoration. J Mater Sci Mater Med 1998; 9:191-196. [PMID: 15348891 DOI: 10.1023/a:1008879922207] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A three-dimensional finite-element model of a human mandible is presented, and the stresses and deformations computed for loading states induced by two different gnathologic reconstructions using six and four implants are discussed. Occlusal canine guidance and posterior and anterior group functions on cantilevered and distally supported prostheses have been simulated. The stress distributions generated by the different loading conditions on either the osseointegrated prosthesis or the bone tissue surrounding the implants are described. The analysis of the stress distribution on the working side reveals that the posterior group function undergoes a reduction in stress intensity on the cortical bone surrounding the implants (especially for the distal implant) compared with the anterior group function and canine guidance in both gnathologic reconstructions.
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Affiliation(s)
- A Apicella
- Department of Material and Production Engineering, University of Naples, Federico II, Piazzale Tecchio, 80125 Naples, Italy
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Baisi F, Macchia A, Masi E. [Correlations between urinary estriol level, placental weight and biometric values of the newborn in the limits of the feto-placental unit]. Minerva Ginecol 1977; 29:869-72. [PMID: 609392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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