1
|
Nardi F, Boschi S, Funari R, Cucini C, Cardaioli E, Potter D, Asano SI, Toubarro D, Meier M, Paoli F, Carapelli A, Frati F. The direction, timing and demography of Popillia japonica (Coleoptera) invasion reconstructed using complete mitochondrial genomes. Sci Rep 2024; 14:7120. [PMID: 38531924 DOI: 10.1038/s41598-024-57667-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 03/20/2024] [Indexed: 03/28/2024] Open
Abstract
The Japanese beetle Popillia japonica is a pest insect that feeds on hundreds of species of wild and cultivated plants including important fruit, vegetable, and field crops. Native to Japan, the pest has invaded large areas of the USA, Canada, the Azores (Portugal), Italy, and Ticino (Switzerland), and it is considered a priority for control in the European Union. We determined the complete mitochondrial genome sequence in 86 individuals covering the entire distribution of the species. Phylogenetic analysis supports a major division between South Japan and Central/North Japan, with invasive samples coming from the latter. The origin of invasive USA samples is incompatible, in terms of the timing of the event, with a single introduction, with multiple Japanese lineages having been introduced and one accounting for most of the population expansion locally. The origin of the two invasive European populations is compatible with two different invasions followed by minimal differentiation locally. Population analyses provide the possibility to estimate the rate of sequence change from the data and to date major invasion events. Demographic analysis identifies a population expansion followed by a period of contraction prior to the invasion. The present study adds a time and demographic dimension to available reconstructions.
Collapse
Affiliation(s)
- Francesco Nardi
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100, Siena, Italy.
- NBFC, National Biodiversity Future Center, Palermo, Italy.
- BAT-Center, Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, Portici, Italy.
| | - Sara Boschi
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100, Siena, Italy
| | - Rebecca Funari
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100, Siena, Italy
| | - Claudio Cucini
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100, Siena, Italy
| | - Elena Cardaioli
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100, Siena, Italy
| | - Daniel Potter
- Department of Entomology, University of Kentucky, Lexington, USA
| | - Shin-Ichiro Asano
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Duarte Toubarro
- Biotechnology Centre of Azores, University of the Azores, Ponta Delgada, Portugal
| | - Michela Meier
- Servizio fitosanitario cantonale, Dipartimento delle finanze e dell'economia, Bellinzona, Switzerland
| | - Francesco Paoli
- Council for Agricultural Research and Agricultural Economy Analysis (CREA), Florence, Italy
| | - Antonio Carapelli
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100, Siena, Italy
- NBFC, National Biodiversity Future Center, Palermo, Italy
- BAT-Center, Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, Portici, Italy
| | - Francesco Frati
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100, Siena, Italy
- NBFC, National Biodiversity Future Center, Palermo, Italy
- BAT-Center, Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, Portici, Italy
| |
Collapse
|
2
|
Cucini C, Boschi S, Funari R, Cardaioli E, Iannotti N, Marturano G, Paoli F, Bruttini M, Carapelli A, Frati F, Nardi F. De novo assembly and annotation of Popillia japonica's genome with initial clues to its potential as an invasive pest. BMC Genomics 2024; 25:275. [PMID: 38475721 DOI: 10.1186/s12864-024-10180-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND The spread of Popillia japonica in non-native areas (USA, Canada, the Azores islands, Italy and Switzerland) poses a significant threat to agriculture and horticulture, as well as to endemic floral biodiversity, entailing that appropriate control measures must be taken to reduce its density and limit its further spread. In this context, the availability of a high quality genomic sequence for the species is liable to foster basic research on the ecology and evolution of the species, as well as on possible biotechnologically-oriented and genetically-informed control measures. RESULTS The genomic sequence presented and described here is an improvement with respect to the available draft sequence in terms of completeness and contiguity, and includes structural and functional annotations. A comparative analysis of gene families of interest, related to the species ecology and potential for polyphagy and adaptability, revealed a contraction of gustatory receptor genes and a paralogous expansion of some subgroups/subfamilies of odorant receptors, ionotropic receptors and cytochrome P450s. CONCLUSIONS The new genomic sequence as well as the comparative analyses data may provide a clue to explain the staggering invasive potential of the species and may serve to identify targets for potential biotechnological applications aimed at its control.
Collapse
Affiliation(s)
- Claudio Cucini
- Department of Life Sciences, University of Siena, Siena, Italy.
| | - Sara Boschi
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Rebecca Funari
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Elena Cardaioli
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Nicola Iannotti
- Department of Life Sciences, University of Siena, Siena, Italy
| | | | - Francesco Paoli
- Council for Agricultural Research and Agricultural Economy Analysis (CREA), Florence, Italy
| | - Mirella Bruttini
- Department of Medical Biotechnologies, Medical Biotech Hub and Competence Centre, University of Siena, Siena, Italy
- Medical Genetics, University of Siena, Siena, Italy
- Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Antonio Carapelli
- Department of Life Sciences, University of Siena, Siena, Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Francesco Frati
- Department of Life Sciences, University of Siena, Siena, Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Francesco Nardi
- Department of Life Sciences, University of Siena, Siena, Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| |
Collapse
|
3
|
Forzieri G, Dutrieux LP, Elia A, Eckhardt B, Caudullo G, Taboada FÁ, Andriolo A, Bălăcenoiu F, Bastos A, Buzatu A, Dorado FC, Dobrovolný L, Duduman ML, Fernandez-Carrillo A, Hernández-Clemente R, Hornero A, Ionuț S, Lombardero MJ, Junttila S, Lukeš P, Marianelli L, Mas H, Mlčoušek M, Mugnai F, Nețoiu C, Nikolov C, Olenici N, Olsson PO, Paoli F, Paraschiv M, Patočka Z, Pérez-Laorga E, Quero JL, Rüetschi M, Stroheker S, Nardi D, Ferenčík J, Battisti A, Hartmann H, Nistor C, Cescatti A, Beck PSA. The Database of European Forest Insect and Disease Disturbances: DEFID2. Glob Chang Biol 2023; 29:6040-6065. [PMID: 37605971 DOI: 10.1111/gcb.16912] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 08/23/2023]
Abstract
Insect and disease outbreaks in forests are biotic disturbances that can profoundly alter ecosystem dynamics. In many parts of the world, these disturbance regimes are intensifying as the climate changes and shifts the distribution of species and biomes. As a result, key forest ecosystem services, such as carbon sequestration, regulation of water flows, wood production, protection of soils, and the conservation of biodiversity, could be increasingly compromised. Despite the relevance of these detrimental effects, there are currently no spatially detailed databases that record insect and disease disturbances on forests at the pan-European scale. Here, we present the new Database of European Forest Insect and Disease Disturbances (DEFID2). It comprises over 650,000 harmonized georeferenced records, mapped as polygons or points, of insects and disease disturbances that occurred between 1963 and 2021 in European forests. The records currently span eight different countries and were acquired through diverse methods (e.g., ground surveys, remote sensing techniques). The records in DEFID2 are described by a set of qualitative attributes, including severity and patterns of damage symptoms, agents, host tree species, climate-driven trigger factors, silvicultural practices, and eventual sanitary interventions. They are further complemented with a satellite-based quantitative characterization of the affected forest areas based on Landsat Normalized Burn Ratio time series, and damage metrics derived from them using the LandTrendr spectral-temporal segmentation algorithm (including onset, duration, magnitude, and rate of the disturbance), and possible interactions with windthrow and wildfire events. The DEFID2 database is a novel resource for many large-scale applications dealing with biotic disturbances. It offers a unique contribution to design networks of experiments, improve our understanding of ecological processes underlying biotic forest disturbances, monitor their dynamics, and enhance their representation in land-climate models. Further data sharing is encouraged to extend and improve the DEFID2 database continuously. The database is freely available at https://jeodpp.jrc.ec.europa.eu/ftp/jrc-opendata/FOREST/DISTURBANCES/DEFID2/.
Collapse
Affiliation(s)
- Giovanni Forzieri
- Department of Civil and Environmental Engineering, University of Florence, Florence, Italy
- European Commission, Joint Research Centre, Ispra, Italy
| | | | | | - Bernd Eckhardt
- European Commission, Joint Research Centre, Ispra, Italy
| | | | - Flor Álvarez Taboada
- DRACONES Research Group, Universidad de León, León, Spain
- Sustainable Forestry and Environmental Management Unit, University of Santiago de Compostela, Lugo, Spain
| | - Alessandro Andriolo
- Ufficio Pianificazione Forestale, Amministrazione Provincia Bolzano, Bolzano, Italy
| | - Flavius Bălăcenoiu
- National Institute for Research and Development in Forestry "Marin Drăcea" (INCDS), Voluntari, Romania
| | - Ana Bastos
- Department of Biogeochemical Processes, Max-Planck Institute for Biogeochemistry, Jena, Germany
| | - Andrei Buzatu
- National Institute for Research and Development in Forestry "Marin Drăcea" (INCDS), Craiova, Romania
| | - Fernando Castedo Dorado
- DRACONES Research Group, Universidad de León, León, Spain
- Sustainable Forestry and Environmental Management Unit, University of Santiago de Compostela, Lugo, Spain
| | - Lumír Dobrovolný
- University Forest Enterprise Masaryk Forest Křtiny, Mendel University in Brno, Brno, Czech Republic
| | - Mihai-Leonard Duduman
- Applied Ecology Laboratory, Forestry Faculty, "Ștefan cel Mare" University of Suceava, Suceava, Romania
| | | | | | - Alberto Hornero
- Instituto de Agricultura Sostenible (IAS), Consejo Superior de Investigaciones Científicas (CSIC), Córdoba, Spain
- Faculty of Engineering and Information Technology (FEIT), The University of Melbourne, Melbourne, Victoria, Australia
| | - Săvulescu Ionuț
- Department of Geomorphology-Pedology-Geomatics, Faculty of Geography, University of Bucharest, Bucharest, Romania
| | - María J Lombardero
- Sustainable Forestry and Environmental Management Unit, University of Santiago de Compostela, Lugo, Spain
| | - Samuli Junttila
- School of Forest Sciences, University of Eastern Finland, Joensuu, Finland
| | - Petr Lukeš
- Czechglobe-Global Change Research Institute, CAS, Brno, Czech Republic
- Ústav pro hospodářskou úpravu lesů-Forest Management Institute (FMI), Brno-Žabovřesky, Czech Republic
| | - Leonardo Marianelli
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | - Hugo Mas
- Laboratori de Sanitat Forestal, Servei d'Ordenació i Gestió Forestal, Conselleria d'Agricultura, Desenvolupament Rural, Emergència Climàtica i Transició Ecològica, Generalitat Valenciana, Valencia, Spain
| | - Marek Mlčoušek
- Czechglobe-Global Change Research Institute, CAS, Brno, Czech Republic
- Ústav pro hospodářskou úpravu lesů-Forest Management Institute (FMI), Brno-Žabovřesky, Czech Republic
| | - Francesco Mugnai
- Department of Civil and Environmental Engineering, University of Florence, Florence, Italy
| | - Constantin Nețoiu
- National Institute for Research and Development in Forestry "Marin Drăcea" (INCDS), Craiova, Romania
| | - Christo Nikolov
- National Forest Centre, Forest Research Institute, Zvolen, Slovakia
| | - Nicolai Olenici
- National Institute for Research and Development in Forestry "Marin Drăcea" (INCDS), Voluntari, Romania
| | - Per-Ola Olsson
- Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden
| | - Francesco Paoli
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | - Marius Paraschiv
- National Institute for Research and Development in Forestry "Marin Drăcea" (INCDS), Brașov, Romania
| | - Zdeněk Patočka
- Department of Forest Management and Applied Geoinformatics, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic
| | - Eduardo Pérez-Laorga
- Laboratori de Sanitat Forestal, Servei d'Ordenació i Gestió Forestal, Conselleria d'Agricultura, Desenvolupament Rural, Emergència Climàtica i Transició Ecològica, Generalitat Valenciana, Valencia, Spain
| | - Jose Luis Quero
- Department of Forest Engineering, University of Córdoba, Córdoba, Spain
| | - Marius Rüetschi
- Department of Land Change Science, Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland
| | - Sophie Stroheker
- Swiss Forest Protection, Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland
| | - Davide Nardi
- DAFNAE-Entomology, University of Padova, Padova, Italy
| | - Ján Ferenčík
- Research Station Tatra National Park, Tatranská Lomnica, Slovakia
| | | | - Henrik Hartmann
- Department of Biogeochemical Processes, Max-Planck Institute for Biogeochemistry, Jena, Germany
- Insitute for Forest Protection, Julius Kühn-Institute, Federal Research Federal Research Center for Cultivated Plants, Quedlinburg, Germany
| | - Constantin Nistor
- Department of Geomorphology-Pedology-Geomatics, Faculty of Geography, University of Bucharest, Bucharest, Romania
| | | | | |
Collapse
|
4
|
Paoli F, Iovinella I, Barbieri F, Sciandra C, Sabbatini Peverieri G, Mazza G, Torrini G, Barzanti GP, Benvenuti C, Strangi A, Bosio G, Mori E, Roversi PF, Marianelli L. Effectiveness of field-exposed attract-and-kill devices against the adults of Popillia japonica (Coleoptera: Scarabaeidae): a study on duration, form and storage. Pest Manag Sci 2023; 79:3262-3270. [PMID: 37073818 DOI: 10.1002/ps.7504] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 03/20/2023] [Accepted: 04/19/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND The Japanese beetle Popillia japonica Newman is an insect pest native to Japan that has spread into North America, the Azores and, recently, into continental Europe. Here, we present a study assessing the effectiveness of a long-lasting insecticide-treated net (LLIN), assembled in semiochemical-baited attract-and-kill devices (A&Ks) as a low environmental impact means to control P. japonica in the field. We compared the attractiveness of three different forms of A&Ks that were left outdoors throughout the summer, and the residence time of P. japonica landing on them. Moreover, we performed a preliminary study testing the effectiveness of new LLINs after storage. Collected data also allowed us to investigate the beetles' diel flight patterns in relation to meteorological conditions. RESULTS Killing effectiveness of the field-exposed A&Ks declined steadily over the flight season (from 100% to 37.5%) associated with a decrease in residues of α-cypermethrin, the active ingredient in the LLINs. The different A&K forms (pyramidal, octahedral and ellipsoidal) attracted similar numbers of beetles. Individual beetles' residence time ranged from 75 to 95 s and differed slightly between A&K forms. Effectiveness of LLINs decreased by ≈30% after 1 year storage. Based on numbers landing on A&Ks, the beetles' flight activity peaked about 14:30 h and was inversely correlated with relative humidity. CONCLUSION This study indicates that semiochemical-baited A&Ks are effective for controlling P. japonica in the field. Because of active ingredient decay, the LLINs should be replaced after 30-40 days of field exposure to ensure that the A&Ks remain fully functional. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
Collapse
Affiliation(s)
- Francesco Paoli
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | | | - Francesco Barbieri
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | - Chiara Sciandra
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | | | - Giuseppe Mazza
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | - Giulia Torrini
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | - Gian Paolo Barzanti
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | - Claudia Benvenuti
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | - Agostino Strangi
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| | - Giovanni Bosio
- Settore Fitosanitario e Servizi Tecnico-scientifici, Torino, Italy
| | - Emiliano Mori
- Consiglio Nazionale delle Ricerche, Istituto di Ricerca sugli Ecosistemi Terrestri, Sesto Fiorentino, Italy
- National Biodiversity Future Center, Palermo, 90133, Italy
| | | | - Leonardo Marianelli
- CREA Research Centre for Plant Protection and Certification, Florence, Italy
| |
Collapse
|
5
|
Gotta P, Ciampitti M, Cavagna B, Bosio G, Gilioli G, Alma A, Battisti A, Mori N, Mazza G, Torrini G, Paoli F, Santoiemma G, Simonetto A, Lessio F, Sperandio G, Giacometto E, Bianchi A, Roversi PF, Marianelli L. Popillia japonica - Italian outbreak management. Front Insect Sci 2023; 3:1175138. [PMID: 38469512 PMCID: PMC10926379 DOI: 10.3389/finsc.2023.1175138] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/28/2023] [Indexed: 03/13/2024]
Abstract
Popillia japonica, a priority pest for the EU, was first detected in Northern Italy in 2014. Since its discovery, the outbreak extended over an area of more than 16,000 square kilometers in Northern Italy and Southern Switzerland. In this review, we summarize the state-of-the-art of research conducted in Italy on both the spreading capacity and control measures of P. japonica. Chemical, physical, and biological control measures deployed since its detection are presented, by highlighting their strengths and weaknesses. An in-depth study of the ecosystems invaded by P. japonica disclosed the presence and pathogenicity of natural strains of entomopathogenic fungi and nematodes, some of which have shown to be particularly aggressive towards the larvae of this pest under laboratory conditions. The Plant Health authorities of the Lombardy and Piedmont regions, with the support of several research institutions, played a crucial role in the initial eradication attempt and subsequently in containing the spread of P. japonica. Control measures were performed in the infested area to suppress adult populations of P. japonica by installing several traps (e.g., for mass trapping, for auto-dissemination of the fungus Metarhizium anisopliae, and "attract & kill"). For larval control, the infested fields were treated with commercial strains of the entomopathogenic fungus M. anisopliae and nematode Heterorhabditis bacteriophora. Future studies will aim at integrating phenological and spread models developed with the most effective control measures, within an ecologically sustainable approach.
Collapse
Affiliation(s)
- Paola Gotta
- Settore Fitosanitario e servizi tecnico-scientifici – Piedmont Region, Turin, Italy
| | - Mariangela Ciampitti
- Directorate General (DG) Agricoltura Servizio Fitosanitario Regionale, Lombardy Region, Milan, Italy
| | - Beniamino Cavagna
- Directorate General (DG) Agricoltura Servizio Fitosanitario Regionale, Lombardy Region, Milan, Italy
| | - Giovanni Bosio
- Settore Fitosanitario e servizi tecnico-scientifici – Piedmont Region, Turin, Italy
| | - Gianni Gilioli
- Dipartimento di Ingegneria Civile Ambiente Territorio Architettura e Matematica (DICATAM), University of Brescia, Brescia, Italy
| | - Alberto Alma
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), University of Turin, Turin, Italy
| | - Andrea Battisti
- Department of Agronomy, Food, Natural Resources, Animals and the Environment (DAFNAE), University of Padua, Padua, Italy
| | - Nicola Mori
- Department of Biotechnology, University of Verona, Verona, Italy
| | - Giuseppe Mazza
- Council for Agricultural Research and Economics (CREA) - Research Centre for Plant Protection and Certification, Florence, Italy
| | - Giulia Torrini
- Council for Agricultural Research and Economics (CREA) - Research Centre for Plant Protection and Certification, Florence, Italy
| | - Francesco Paoli
- Council for Agricultural Research and Economics (CREA) - Research Centre for Plant Protection and Certification, Florence, Italy
| | - Giacomo Santoiemma
- Department of Agronomy, Food, Natural Resources, Animals and the Environment (DAFNAE), University of Padua, Padua, Italy
| | - Anna Simonetto
- Dipartimento di Ingegneria Civile Ambiente Territorio Architettura e Matematica (DICATAM), University of Brescia, Brescia, Italy
| | - Federico Lessio
- Settore Fitosanitario e servizi tecnico-scientifici – Piedmont Region, Turin, Italy
| | - Giorgio Sperandio
- Dipartimento di Ingegneria Civile Ambiente Territorio Architettura e Matematica (DICATAM), University of Brescia, Brescia, Italy
| | - Emanuela Giacometto
- Settore Fitosanitario e servizi tecnico-scientifici – Piedmont Region, Turin, Italy
| | - Alessandro Bianchi
- Directorate General (DG) Agricoltura Servizio Fitosanitario Regionale, Lombardy Region, Milan, Italy
| | - Pio Federico Roversi
- Council for Agricultural Research and Economics (CREA) - Research Centre for Plant Protection and Certification, Florence, Italy
| | - Leonardo Marianelli
- Council for Agricultural Research and Economics (CREA) - Research Centre for Plant Protection and Certification, Florence, Italy
| |
Collapse
|
6
|
Barzanti GP, Enkerli J, Benvenuti C, Strangi A, Mazza G, Torrini G, Simoncini S, Paoli F, Marianelli L. Genetic variability of Metarhizium isolates from the Ticino Valley Natural Park (Northern Italy) as a possible microbiological resource for the management of Popillia japonica. J Invertebr Pathol 2023; 197:107891. [PMID: 36716929 DOI: 10.1016/j.jip.2023.107891] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/17/2023] [Accepted: 01/24/2023] [Indexed: 01/28/2023]
Abstract
The natural occurrence of entomopathogenic fungi (EPF) was investigated along the Ticino River (Ticino River Natural Park, Novara Province, Piedmont, Italy), at the center of the area of the first settlement of the invasive alien pest Popillia japonica. Using Zimmermann's "Galleria bait method", EPF were successfully isolated from 83 out of 155 soil samples from different habitats (perennial, cultivated, or uncultivated meadows, woodlands, and riverbanks). Sequencing of the 5' end of the Translation Elongation Factor 1 alfa (5'-TEF) region allowed the assignment of 94% of the isolates to Metarhizium spp., while 8% and 7% were assigned to Beauveria spp. and Paecilomyces spp., respectively. Four Metarhizium species were identified: Metarhizium robertsii was the most common one (61.5% of the isolates), followed by M. brunneum (24.4%), M. lepidiotae (9%), and M. guizhouense (5.1%). Microsatellite marker analysis of the Metarhizium isolates revealed the presence of 27 different genotypes, i.e., 10 genotypes among M. robertsii, 8 among M. brunneum, 5 among M. lepidiotae, and 4 among M. guizhouense. Metarhizium brunneum appeared to be associated with woodlands and more acid soils, while the other species showed no clear association with a particular habitat. Laboratory virulence tests against P. japonica 3rd instar larvae allowed the identification of one M. robertsii isolate that showed efficacy as high as 80.3%. The importance of this kind of study in the frame of eco-friendly microbiological control is discussed.
Collapse
Affiliation(s)
- Gian Paolo Barzanti
- CREA Research Centre for Plant Protection and Certification, 50125 Florence, Italy.
| | - Jürg Enkerli
- AGROSCOPE Institute for Sustainability Sciences ISS, Molecular Ecology, 8046 Zürich, Switzerland
| | - Claudia Benvenuti
- CREA Research Centre for Plant Protection and Certification, 50125 Florence, Italy
| | - Agostino Strangi
- CREA Research Centre for Plant Protection and Certification, 50125 Florence, Italy
| | - Giuseppe Mazza
- CREA Research Centre for Plant Protection and Certification, 50125 Florence, Italy
| | - Giulia Torrini
- CREA Research Centre for Plant Protection and Certification, 50125 Florence, Italy
| | - Stefania Simoncini
- CREA Research Centre for Plant Protection and Certification, 50125 Florence, Italy
| | - Francesco Paoli
- CREA Research Centre for Plant Protection and Certification, 50125 Florence, Italy
| | - Leonardo Marianelli
- CREA Research Centre for Plant Protection and Certification, 50125 Florence, Italy
| |
Collapse
|
7
|
Nardi F, Cucini C, Cardaioli E, Paoli F, Sabbatini Peverieri G, Roversi PF, Frati F, Carapelli A. The complete mitochondrial genome of Trissolcus japonicus (Hymenoptera: Scelionidae), the candidate for the biological control of Halyomorpha halys (Hemiptera: Pentatomidae). Mitochondrial DNA B Resour 2021; 6:2307-2309. [PMID: 34291166 PMCID: PMC8274504 DOI: 10.1080/23802359.2021.1948370] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The samurai wasp Trissolcus japonicus (Ashmead, 1904) is a parasitoid hymenopteran that came into the limelight as the natural enemy of Halyomorpha halys. Here, we present the complete sequence of the mitochondrial genome of the CREATJ laboratory strain, naturally recovered in Italy in 2018. The molecule conforms to the typical model of animal mitochondrial genomes. Gene order is identical to that of its congeneric Trissolcus basalis. Phylogenetic analysis confirms its placement within monophyletic Scelionidae and Telenominae as the sister group of T. basalis.
Collapse
Affiliation(s)
- Francesco Nardi
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Claudio Cucini
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Elena Cardaioli
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Francesco Paoli
- CREA - Research Centre for Plant Protection and Certifications, Florence, Italy
| | | | | | - Francesco Frati
- Department of Life Sciences, University of Siena, Siena, Italy
| | | |
Collapse
|
8
|
Paoli F, Mercati D, Marianelli L, Roversi PF, Lupetti P, Dallai R. Sperm ultrastructure and spermatogenesis in the Japanese beetle Popillia japonica (Coleoptera, Scarabaeidae). Micron 2020; 135:102879. [PMID: 32416441 DOI: 10.1016/j.micron.2020.102879] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/27/2020] [Accepted: 04/27/2020] [Indexed: 10/24/2022]
Abstract
Popillia japonica is an invasive scarab beetle native to Japan that in 1916 invaded New Jersey in USA. From that moment onwards, the insect has spread invading several US states, Canada, the Azores, Italy and, recently, Switzerland. It is a severe agricultural pest included in the EU priority pest list being able to feed on more than 300 plant species and having an important biotic potential. The general morphology of the reproductive apparatus shows paired testes, each of them having six testicular lobes grouped in threes. From the ventral part of each testicular lobe, each containing about 20 follicles, an efferent vessel originates that fuses with the other efferent vessels to form the deferent duct. A pair of long tubular accessory glands is present. The deferent ducts and accessory glands fuse together into an ejaculatory duct before entering the aedeagus. The sperm is a typical pterygote sperm, 110 μm long, composed of a head and a tail. In the head a three-layered acrosome of about 6 μm in length and a nucleus of about 18 μm long are present. During sperm maturation two C-shaped structures appear in the cytoplasm from the opposite sides of the nucleus that then disappear in late spermatids. In the tail a typical 9 + 9 + 2 flagellar axoneme and two mitochondrial derivatives are present. Moreover, in the head-tail transition region the centriolar adjunct forms a sheath from which three elongated accessory bodies originate. Two of these accessory bodies are placed alongside the axoneme, whilst the third one is placed beneath the mitochondrial derivatives. Mature sperm are grouped in cysts containing about 256 sperm cells. A morphological comparison with related species is provided.
Collapse
Affiliation(s)
- F Paoli
- CREA Research Centre for Plant Protection and Certification, via di Lanciola 12/a, 50125 Firenze, Italy.
| | - D Mercati
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| | - L Marianelli
- CREA Research Centre for Plant Protection and Certification, via di Lanciola 12/a, 50125 Firenze, Italy.
| | - P F Roversi
- CREA Research Centre for Plant Protection and Certification, via di Lanciola 12/a, 50125 Firenze, Italy.
| | - P Lupetti
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| | - R Dallai
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| |
Collapse
|
9
|
Aries E, Bigand E, El Louali F, Aldebert P, Paoli F, Ovaert C. Single ventricle: Estimated cumulative irradiation during their life. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2019.09.347] [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: 10/25/2022]
|
10
|
Chouaia B, Goda N, Mazza G, Alali S, Florian F, Gionechetti F, Callegari M, Gonella E, Magoga G, Fusi M, Crotti E, Daffonchio D, Alma A, Paoli F, Roversi PF, Marianelli L, Montagna M. Developmental stages and gut microenvironments influence gut microbiota dynamics in the invasive beetle Popillia japonica Newman (Coleoptera: Scarabaeidae). Environ Microbiol 2019; 21:4343-4359. [PMID: 31502415 DOI: 10.1111/1462-2920.14797] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 01/16/2023]
Abstract
Popillia japonica Newman (Coleoptera: Scarabaeidae) is a highly polyphagous invasive beetle originating from Japan. This insect is highly resilient and able to rapidly adapt to new vegetation. Insect-associated microorganisms can play important roles in insect physiology, helping their hosts to adapt to changing conditions and potentially contributing to an insect's invasive potential. Such symbiotic bacteria can be part of a core microbiota that is stably transmitted throughout the host's life cycle or selectively recruited from the environment at each developmental stage. The aim of this study was to investigate the origin, stability and turnover of the bacterial communities associated with an invasive population of P. japonica from Italy. Our results demonstrate that soil microbes represent an important source of gut bacteria for P. japonica larvae, but as the insect develops, its gut microbiota richness and diversity decreased substantially, paralleled by changes in community composition. Notably, only 16.75% of the soil bacteria present in larvae are maintained until the adult stage. We further identified the micro-environments of different gut sections as an important factor shaping microbiota composition in this species, likely due to differences in pH, oxygen availability and redox potential. In addition, P. japonica also harboured a stable bacterial community across all developmental stages, consisting of taxa well known for the degradation of plant material, namely the families Ruminococcacae, Christensenellaceae and Lachnospiraceae. Interestingly, the family Christensenallaceae had so far been observed exclusively in humans. However, the Christensenellaceae operational taxonomic units found in P. japonica belong to different taxonomic clades within this family.
Collapse
Affiliation(s)
- Bessem Chouaia
- Dipartimento di Scienze Agrarie e Ambientali (DiSAA), Università degli Studi di Milano, 20133, Milan, Italy
| | - Nizar Goda
- Dipartimento di Scienze Agrarie e Ambientali (DiSAA), Università degli Studi di Milano, 20133, Milan, Italy
| | - Giuseppe Mazza
- CREA-DC, Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Research Centre for Plant Protection and Certification, via di Lanciola 12/A, 50125, Cascine del Riccio, Florence, Italy
| | - Sumer Alali
- Dipartimento di Scienze e politiche ambientali (DESP), Università degli Studi di Milano, 20133, Milan, Italy
| | - Fiorella Florian
- Dipartimento di Scienze della Vita, Università degli Studi di Trieste, 34127, Trieste, Italy
| | - Fabrizia Gionechetti
- Dipartimento di Scienze della Vita, Università degli Studi di Trieste, 34127, Trieste, Italy
| | - Matteo Callegari
- Dipartimento di Scienze per gli Alimenti, la Nutrizione e l'Ambiente (DeFENS), Università degli Studi di Milano, 20133, Milan, Italy
| | - Elena Gonella
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Università degli Studi di Torino, 10095, Grugliasco, Italy
| | - Giulia Magoga
- Dipartimento di Scienze Agrarie e Ambientali (DiSAA), Università degli Studi di Milano, 20133, Milan, Italy
| | - Marco Fusi
- Biological and Environmental Sciences and Engineering Division (BESE), Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Elena Crotti
- Dipartimento di Scienze per gli Alimenti, la Nutrizione e l'Ambiente (DeFENS), Università degli Studi di Milano, 20133, Milan, Italy
| | - Daniele Daffonchio
- Biological and Environmental Sciences and Engineering Division (BESE), Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Alberto Alma
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Università degli Studi di Torino, 10095, Grugliasco, Italy
| | - Francesco Paoli
- CREA-DC, Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Research Centre for Plant Protection and Certification, via di Lanciola 12/A, 50125, Cascine del Riccio, Florence, Italy
| | - Pio Federico Roversi
- CREA-DC, Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Research Centre for Plant Protection and Certification, via di Lanciola 12/A, 50125, Cascine del Riccio, Florence, Italy
| | - Leonardo Marianelli
- CREA-DC, Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Research Centre for Plant Protection and Certification, via di Lanciola 12/A, 50125, Cascine del Riccio, Florence, Italy
| | - Matteo Montagna
- Dipartimento di Scienze Agrarie e Ambientali (DiSAA), Università degli Studi di Milano, 20133, Milan, Italy
| |
Collapse
|
11
|
Marianelli L, Paoli F, Sabbatini Peverieri G, Benvenuti C, Barzanti GP, Bosio G, Venanzio D, Giacometto E, Roversi PF. Long-lasting insecticide-treated nets: A new integrated pest management approach for Popillia japonica (Coleoptera: Scarabaeidae). Integr Environ Assess Manag 2019; 15:259-265. [PMID: 30447096 DOI: 10.1002/ieam.4107] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 08/03/2018] [Revised: 09/19/2018] [Accepted: 11/09/2018] [Indexed: 06/09/2023]
Abstract
The Japanese beetle Popillia japonica Newman is a US and EU quarantine insect pest that has recently invaded northern Italy. Its ability to rapidly spread in new areas makes this insect a threat to agriculture. In the last decades, several trials on biological control of the Japanese beetle by entomopathogenic nematodes and fungi have been carried out with variable efficacy. However, the necessity of an integrated pest management approach to improve control has arisen. Long-lasting insecticide-treated nets (LLINs) have been used to control other agricultural pests with an attract-and-kill strategy. Here, we present results from laboratory evaluation of 2 LLINs, Storanet® (BASF™) and ZeroFly® (Vestergaard™), against P. japonica adults. Both were effective in killing the beetles; however, some differences emerged if different exposure times were compared: ZeroFly® always gave 100% mortality in tests from 5-s to 30-min exposure; Storanet® showed 100% mortality only with 30-min exposure and going down to 89%-99% mortality for 5-s to 15-min exposure. A description of the paralysis process occurring at 5-s exposure is given. Possible field application of LLINs within programs of integrated pest management is discussed. Integr Environ Assess Manag 2019;15:259-265. © 2018 SETAC.
Collapse
Affiliation(s)
| | - Francesco Paoli
- CREA Research Centre for Plant Protection and Certification, Firenze, Italy
| | | | - Claudia Benvenuti
- CREA Research Centre for Plant Protection and Certification, Firenze, Italy
| | | | - Giovanni Bosio
- Settore Fitosanitario e Servizi Tecnico-scientifici, Regione Piemonte, Torino, Italy
| | - Davide Venanzio
- Settore Fitosanitario e Servizi Tecnico-scientifici, Regione Piemonte, Torino, Italy
| | - Emanuela Giacometto
- Settore Fitosanitario e Servizi Tecnico-scientifici, Regione Piemonte, Torino, Italy
| | | |
Collapse
|
12
|
Paoli F, Domanski F, Pratellesi F. Taking benefit from European cooperation on HSPA. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- F Paoli
- European Commission - SRSS, Brussels, Belgium
| | - F Domanski
- European Commission – DG Health and Food Safety, Brussels, Belgium
| | - F Pratellesi
- European Commission – DG Health and Food Safety, Brussels, Belgium
| |
Collapse
|
13
|
Dallai R, Mercati D, Gounari S, Paoli F, Lupetti P. Ultrastructure of spermiogenesis and spermatozoa in Marchalina hellenica (Gennadius) (Hemiptera: Sternorrhyncha, Marchalinidae). Arthropod Struct Dev 2017; 46:601-612. [PMID: 28347860 DOI: 10.1016/j.asd.2017.03.004] [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] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/10/2017] [Accepted: 03/16/2017] [Indexed: 06/06/2023]
Abstract
The spermiogenesis, the sperm structure and the sperm motility of Marchalina hellenica (Gennadius) were examined. In the early spermiogenesis a centriolar apparatus was identified, but this structure is not involved in the production of the sperm flagellum. As in other Coccoidea, the flagellar axoneme originates by the activity of the thickened tip of the numerous microtubules surrounding the nuclear anterior region close to the periphery of the cell. This region pushes against a narrow cytoplasmic layer, giving rise to a papilla. In this region a novel structure, consisting of a regular network of thin filaments, arranged orthogonally to the bundle of microtubules, is visible. The sperm flagellum consists of a series of about 260 microtubules, regularly arranged in rings around the axial nucleus. This latter extends in the middle part of the sperm length. As usual in scale insects, sperm form a bundle, which in M. hellenica is composed of 64 sperm cells, surrounded by somatic cyst cells. The sperm bundle has an helicoidal array, with a cap of dense material at its apex, lending the anterior and the posterior region of the sperm bundle with a different structural organization. This difference is responsible of the different speed gradient observed in the helical wave propagating along the sperm bundle.
Collapse
Affiliation(s)
- Romano Dallai
- Department of Life Science, University of Siena, Italy.
| | - David Mercati
- Department of Life Science, University of Siena, Italy.
| | - Sofia Gounari
- Institute of Mediterranean Forest Ecosystem, HAO DEMETER, Athens, Greece.
| | - Francesco Paoli
- Consiglio per la Ricerca in Agricoltura e l'analisi dell'economia agraria, Centro di Ricerca per l'Agrobiologia e la Pedologia (CREA-ABP), Firenze, Italy.
| | | |
Collapse
|
14
|
Salibra A, Ledda A, Paoli F. Factor varieties. Soft comput 2017. [DOI: 10.1007/s00500-015-1828-9] [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: 11/27/2022]
|
15
|
Camerota M, Mazza G, Carta LK, Paoli F, Torrini G, Benvenuti C, Carletti B, Francardi V, Roversi PF. Occurrence of Panagrellus (Rhabditida: Panagrolaimidae) Nematodes in a Morphologically Aberrant Adult Specimen of Rhynchophorus ferrugineus (Coleoptera: Dryophthoridae). J Nematol 2016; 48:1-6. [PMID: 27168645 PMCID: PMC4859612 DOI: 10.21307/jofnem-2017-001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 06/15/2015] [Indexed: 11/11/2022] Open
Abstract
An aberrant specimen of Rhynchophorus ferrugineus (Coleoptera: Dryophthoridae) also known as red palm weevil (RPW), the most economically important insect pest of palms in the world, was found among a batch of conspecifics reared for research purposes. A morphological analysis of this weevil revealed the presence of nematodes associated with a structured cuticle defect of the thorax. These nematodes were not able to be cultured, but were characterized by molecular analysis using 28S and 18S ribosomal DNA and shown to belong to the family Panagrolaimidae (Rhabditida), within a clade of Panagrellus. While most nematodes in the insect were juveniles, a single male adult was partially characterized by light microscopy. Morphometrics showed similarities to a species described from Germany. Excluding the entomopathogenic nematodes (EPN), only five other genera of entomophilic or saprophytic rhabditid nematodes are associated with this weevil. This is the first report of panagrolaimid nematodes associated with this invasive pest. Possible mechanisms of nematode-insect association are discussed.
Collapse
Affiliation(s)
- Manuela Camerota
- Council for Agricultural Research and Economics, Agrobiology and Pedology Research Centre (CRA-ABP), Via Lanciola 12/A, Cascine del Riccio, 50125 Florence, Italy
| | - Giuseppe Mazza
- Council for Agricultural Research and Economics, Agrobiology and Pedology Research Centre (CRA-ABP), Via Lanciola 12/A, Cascine del Riccio, 50125 Florence, Italy
| | - Lynn K Carta
- Nematology Laboratory, USDA, ARS, Henry A. Wallace Beltsville Agricultural Research Center, Bldg. 010A, Room 110, Beltsville, MD 20705-2350
| | - Francesco Paoli
- Council for Agricultural Research and Economics, Agrobiology and Pedology Research Centre (CRA-ABP), Via Lanciola 12/A, Cascine del Riccio, 50125 Florence, Italy
| | - Giulia Torrini
- Council for Agricultural Research and Economics, Agrobiology and Pedology Research Centre (CRA-ABP), Via Lanciola 12/A, Cascine del Riccio, 50125 Florence, Italy
| | - Claudia Benvenuti
- Council for Agricultural Research and Economics, Agrobiology and Pedology Research Centre (CRA-ABP), Via Lanciola 12/A, Cascine del Riccio, 50125 Florence, Italy
| | - Beatrice Carletti
- Council for Agricultural Research and Economics, Agrobiology and Pedology Research Centre (CRA-ABP), Via Lanciola 12/A, Cascine del Riccio, 50125 Florence, Italy
| | - Valeria Francardi
- Council for Agricultural Research and Economics, Agrobiology and Pedology Research Centre (CRA-ABP), Via Lanciola 12/A, Cascine del Riccio, 50125 Florence, Italy
| | - Pio Federico Roversi
- Council for Agricultural Research and Economics, Agrobiology and Pedology Research Centre (CRA-ABP), Via Lanciola 12/A, Cascine del Riccio, 50125 Florence, Italy
| |
Collapse
|
16
|
Paoli F, Wirkner CS, Cannicci S. The branchiostegal lung of Uca vocans (Decapoda: Ocypodidae): Unreported complexity revealed by corrosion casting and MicroCT techniques. Arthropod Struct Dev 2015; 44:622-629. [PMID: 26431635 DOI: 10.1016/j.asd.2015.09.006] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 09/17/2015] [Accepted: 09/20/2015] [Indexed: 06/05/2023]
Abstract
The study of adaptation to terrestrial life in crabs poses several physiological questions. One of the major challenges the crabs have to face is respiration of air: most of the time, gills are unsuitable to perform oxygen exchange out of the water. Fiddler crabs, like other representatives of the Ocypodidae, have developed an additional mechanism of respiration by improving the circulation that lines the branchiostegal chamber, thus developing a branchiostegal lung. In the present study we describe the hitherto unreported complex morphology of the branchiostegal lung of the fiddler crab Uca vocans by means of corrosion casting techniques and 3D reconstruction. This complexity leads us to reconsider the degree of terrestriality of U. vocans and its evolutionary pathway towards land.
Collapse
Affiliation(s)
- Francesco Paoli
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
| | - Christian S Wirkner
- Allgemeine & Spezielle Zoologie, Institut für Biowissenschaften, Universität Rostock, Universitätsplatz 2, 18055 Rostock, Germany.
| | - Stefano Cannicci
- The Swire Institute of Marine Science and The School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong; Department of Biology, University of Florence, Via Madonna del Piano 6, Sesto Fiorentino 50019, Italy.
| |
Collapse
|
17
|
Paoli F, Roversi PF, Mercati D, Marziali L, Cocco A, Dallai R. The ultrastructure of spermiogenesis in four species of Coccoidea (Insecta, Homoptera). ZOOL ANZ 2015. [DOI: 10.1016/j.jcz.2015.07.004] [Citation(s) in RCA: 6] [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] [Indexed: 01/08/2023]
|
18
|
Landi S, Gargani E, Paoli F, Simoni S, Roversi PF. Morphological Markers for Cryopreservation in the Embryonic Development of Drosophila suzukii (Diptera: Drosophilidae). J Econ Entomol 2015; 108:1875-1883. [PMID: 26470330 DOI: 10.1093/jee/tov114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 07/28/2014] [Accepted: 04/15/2015] [Indexed: 06/05/2023]
Abstract
Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is an invasive pest recently reported in Europe whose spread into new areas has caused severe economic damage to many agricultural crops. There are serious concerns about the currently available chemical insecticides because of their low efficacy in controlling the species and their environmental impact; so, several studies have focused on environmentally safe strategies. The sterile insect technique (SIT), which requires colony maintenance in laboratory and production of large numbers of live animals, can be utilized in pest management programs and could be integrated with other control strategies if the potential risks associated with the rearing and maintenance of the insect line under laboratory conditions are given sufficient attention. In this regard, the ability to cryobiologically preserve such stocks would be of substantial value. Important prerequisites for long-term cryopreservation are determination of the embryonic stages, identification of specific embryonic stages, and knowledge of development time. This paper describes the main visible markers for the different stages of embryonic development and determines the timing of development at 25°C. D. suzukii embryogenesis lasts 23-25 h at 25°C and can be divided into 17 stages defined by specific morphological markers. The point at which 50% of embryos are at Stage 14 and 50% are at Stage 15, the most tolerant stages for cryopreservation treatment, as ascertained for Drosophila melanogaster Meigen in prior studies, is reached in 14-15 h. The efficiency of this procedure might be impaired by the retention of eggs in the oviducts, making it impossible to determine the stage of embryonic development for ∼25% of laid eggs.
Collapse
Affiliation(s)
- Silvia Landi
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy
| | - Elisabetta Gargani
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy
| | - Francesco Paoli
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy
| | - Sauro Simoni
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy
| | - Pio Federico Roversi
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy
| |
Collapse
|
19
|
Barboza LL, Campos VMA, Magalhães LAG, Paoli F, Fonseca AS. Low-intensity red and infrared laser effects at high fluences on Escherichia coli cultures. ACTA ACUST UNITED AC 2015; 48:945-52. [PMID: 26445339 PMCID: PMC4617122 DOI: 10.1590/1414-431x20154460] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [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: 10/31/2014] [Accepted: 06/09/2015] [Indexed: 11/22/2022]
Abstract
Semiconductor laser devices are readily available and practical radiation sources providing wavelength tenability and high monochromaticity. Low-intensity red and near-infrared lasers are considered safe for use in clinical applications. However, adverse effects can occur via free radical generation, and the biological effects of these lasers from unusually high fluences or high doses have not yet been evaluated. Here, we evaluated the survival, filamentation induction and morphology of Escherichia coli cells deficient in repair of oxidative DNA lesions when exposed to low-intensity red and infrared lasers at unusually high fluences. Cultures of wild-type (AB1157), endonuclease III-deficient (JW1625-1), and endonuclease IV-deficient (JW2146-1) E. coli, in exponential and stationary growth phases, were exposed to red and infrared lasers (0, 250, 500, and 1000 J/cm2) to evaluate their survival rates, filamentation phenotype induction and cell morphologies. The results showed that low-intensity red and infrared lasers at high fluences are lethal, induce a filamentation phenotype, and alter the morphology of the E. coli cells. Low-intensity red and infrared lasers have potential to induce adverse effects on cells, whether used at unusually high fluences, or at high doses. Hence, there is a need to reinforce the importance of accurate dosimetry in therapeutic protocols.
Collapse
Affiliation(s)
- L L Barboza
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Rio de Janeiro, RJ, BR
| | - V M A Campos
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Rio de Janeiro, RJ, BR
| | - L A G Magalhães
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Rio de Janeiro, RJ, BR
| | - F Paoli
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, BR
| | - A S Fonseca
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Rio de Janeiro, RJ, BR
| |
Collapse
|
20
|
Canuto KS, Sergio LPS, Guimarães OR, Geller M, Paoli F, Fonseca AS. Low-level red laser therapy alters effects of ultraviolet C radiation on Escherichia coli cells. ACTA ACUST UNITED AC 2015; 48:939-44. [PMID: 26445338 PMCID: PMC4617121 DOI: 10.1590/1414-431x20154459] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 04/23/2015] [Indexed: 11/29/2022]
Abstract
Low-level lasers are used at low power densities and doses according to clinical
protocols supplied with laser devices or based on professional practice. Although use
of these lasers is increasing in many countries, the molecular mechanisms involved in
effects of low-level lasers, mainly on DNA, are controversial. In this study, we
evaluated the effects of low-level red lasers on survival, filamentation, and
morphology of Escherichia colicells that were exposed to ultraviolet
C (UVC) radiation. Exponential and stationary wild-type and
uvrA-deficientE. coli cells were exposed to a
low-level red laser and in sequence to UVC radiation. Bacterial survival was
evaluated to determine the laser protection factor (ratio between the number of
viable cells after exposure to the red laser and UVC and the number of viable cells
after exposure to UVC). Bacterial filaments were counted to obtain the percentage of
filamentation. Area-perimeter ratios were calculated for evaluation of cellular
morphology. Experiments were carried out in duplicate and the results are reported as
the means of three independent assays. Pre-exposure to a red laser protected
wild-type and uvrA-deficient E. coli cells against
the lethal effect of UVC radiation, and increased the percentage of filamentation and
the area-perimeter ratio, depending on UVC fluence and physiological conditions in
the cells. Therapeutic, low-level red laser radiation can induce DNA lesions at a
sub-lethal level. Consequences to cells and tissues should be considered when
clinical protocols based on this laser are carried out.
Collapse
Affiliation(s)
- K S Canuto
- Centro de Ciências da Saúde, Centro Universitário Serra dos =rgãos, Teresópolis, RJ, BR
| | - L P S Sergio
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Rio de Janeiro, RJ, BR
| | - O R Guimarães
- Centro de Ciências da Saúde, Centro Universitário Serra dos =rgãos, Teresópolis, RJ, BR
| | - M Geller
- Centro de Ciências da Saúde, Centro Universitário Serra dos =rgãos, Teresópolis, RJ, BR
| | - F Paoli
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, BR
| | - A S Fonseca
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Rio de Janeiro, RJ, BR
| |
Collapse
|
21
|
Fonseca AS, Campos VMA, Magalhães LAG, Paoli F. Nucleotide excision repair pathway assessment in DNA exposed to low-intensity red and infrared lasers. ACTA ACUST UNITED AC 2015; 48:929-38. [PMID: 26445337 PMCID: PMC4617120 DOI: 10.1590/1414-431x20154457] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 03/17/2015] [Indexed: 02/02/2023]
Abstract
Low-intensity lasers are used for prevention and management of oral mucositis induced
by anticancer therapy, but the effectiveness of treatment depends on the genetic
characteristics of affected cells. This study evaluated the survival and induction of
filamentation of Escherichia coli cells deficient in the nucleotide
excision repair pathway, and the action of T4endonuclease V on plasmid DNA
exposed to low-intensity red and near-infrared laser light. Cultures of wild-type
(strain AB1157) E. coli and strain AB1886 (deficient in uvrA
protein) were exposed to red (660 nm) and infrared (808 nm) lasers at various
fluences, powers and emission modes to study bacterial survival and filamentation.
Also, plasmid DNA was exposed to laser light to study DNA lesions produced in
vitro by T4endonuclease V. Low-intensity
lasers:i) had no effect on survival of wild-type E.
coli but decreased the survival of uvrA protein-deficient
cells,ii) induced bacterial filamentation, iii)
did not alter the electrophoretic profile of plasmids in agarose gels,
andiv) did not alter the electrophoretic profile of plasmids
incubated with T4 endonuclease V. These results increase our understanding
of the effects of laser light on cells with various genetic characteristics, such as
xeroderma pigmentosum cells deficient in nucleotide excision pathway activity in
patients with mucositis treated by low-intensity lasers.
Collapse
Affiliation(s)
- A S Fonseca
- Laboratório de Ciências Radiológicas, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Rio de Janeiro, RJ, BR
| | - V M A Campos
- Laboratório de Ciências Radiológicas, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Rio de Janeiro, RJ, BR
| | - L A G Magalhães
- Laboratório de Ciências Radiológicas, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Rio de Janeiro, RJ, BR
| | - F Paoli
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, BR
| |
Collapse
|
22
|
Paoli F, Roversi PF, Gottardo M, Callaini G, Mercati D, Dallai R. A microtubule organizing centre (MTOC) is responsible for the production of the sperm flagellum in Matsucoccus feytaudi (Hemiptera: Coccoidea). Arthropod Struct Dev 2015; 44:237-242. [PMID: 25805602 DOI: 10.1016/j.asd.2015.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 01/29/2015] [Revised: 03/12/2015] [Accepted: 03/13/2015] [Indexed: 06/04/2023]
Abstract
A microtubule organizing centre (MTOC) has been described in the spermatid of the hemipteran Matsucoccus feytaudi (Coccoidea). This structure, revealed as a fluorescent ring by treatment with γ-tubulin antibody, gives rise to a bundle of microtubules which surrounds the elongated cylindrical nucleus. This microtubule bundle has been considered an atypical sperm flagellum provided with sperm motility. A comparison of the M. feytaudi MTOC with the material associated with the centriole of Drosophila melanogaster spermatids confirms the great similarity between the two structures, both involved in the nucleation of microtubules. Like the D. melanogaster material associated with the centriole, the M. feytaudi MTOC is a transient structure which disappears or degenerates at the end of spermiogenesis and is no longer visible in the mature sperm.
Collapse
Affiliation(s)
- Francesco Paoli
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| | - Pio Federico Roversi
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| | - Marco Gottardo
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| | - Giuliano Callaini
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| | - David Mercati
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| | - Romano Dallai
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| |
Collapse
|
23
|
|
24
|
Paoli F, Roversi PF, Benassai D, Squarcini M, Mercati D, Dallai R. The sperm of Matsucoccus feytaudi (Insecta, Coccoidea): Can the microtubular bundle be considered as a true flagellum? Arthropod Struct Dev 2015; 44:142-156. [PMID: 25533128 DOI: 10.1016/j.asd.2014.11.005] [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: 09/16/2014] [Revised: 11/19/2014] [Accepted: 11/26/2014] [Indexed: 06/04/2023]
Abstract
In the present work the spermiogenesis and sperm structure of Matsucoccus feytaudi, a primary pest of the maritime pine in southern eastern Europe, is studied. In addition to the already known characteristics of coccid sperm, such as the absence of the acrosome and mitochondria, and the presence of a bundle of microtubules responsible for sperm motility, a peculiar structure from which the microtubule bundle takes origin is described. Such a structure--a short cylinder provided with a central hub surrounded by several microtubules with a dense wall--is regarded as a Microtubule Organizing Centre (MTOC). During spermiogenesis, quartets of fused spermatids are formed; from each spermatid, a bundle of microtubules, generated by the MTOC, projects from the cell surface. Each cell has two centrioles, suggesting the lack of a meiotic process and the occurrence of parthenogenesis. At the end of the spermiogenesis, when the cysts containing bundles of sperm are formed, part of the nuclear material together with the MTOC structure is eliminated. Based on the origin of the microtubular bundle from the MTOC, the nature of the bundle as a flagellum is discussed.
Collapse
Affiliation(s)
- Francesco Paoli
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| | - Pio Federico Roversi
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| | - Daniele Benassai
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| | - Michele Squarcini
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| | - David Mercati
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| | - Romano Dallai
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| |
Collapse
|
25
|
Paoli F, Dallai R, Cristofaro M, Arnone S, Francardi V, Roversi PF. Morphology of the male reproductive system, sperm ultrastructure and γ-irradiation of the red palm weevil Rhynchophorus ferrugineus Oliv. (Coleoptera: Dryophthoridae). Tissue Cell 2014; 46:274-85. [PMID: 25015762 DOI: 10.1016/j.tice.2014.06.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [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: 05/06/2014] [Revised: 06/04/2014] [Accepted: 06/04/2014] [Indexed: 11/25/2022]
Abstract
In the present study we describe the morphology of the male reproductive apparatus and sperm ultrastructure of the red palm weevil - an invasive pest of several palm tree species - as well as the most important steps of spermatogenesis. The reproductive apparatus consists of a pair of testes (each formed by two lobes) a long tube-like accessory gland, a prostate gland and a small accessory gland. Characteristic features of the sperm are 90-100 μm total length, 10 μm nucleus, two mitochondrial derivatives, two accessory bodies, one well-developed puff-like structure and a typical insect 9+9+2 flagellar axoneme. One of the methods used for the biological control of pests is the Sterile Insect Technique (SIT), for the evaluation of which we make a preliminary comparison of the sperm ultrastructure of non-irradiated and irradiated weevils (at a dose of 80 Gray).
Collapse
Affiliation(s)
- Francesco Paoli
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| | - Romano Dallai
- Department of Life Sciences, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.
| | | | - Silvia Arnone
- ENEA Casaccia, UTAGRI-ECO, via Anguillarese 301, 00123 Rome, Italy.
| | - Valeria Francardi
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| | - Pio Federico Roversi
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| |
Collapse
|
26
|
Paoli F, Gottardo M, Dallai R, Roversi PF. Morphology of the male reproductive system and sperm ultrastructure of the egg parasitoid Gryon pennsylvanicum (Ashmead) (Hymenoptera, Platygastridae). Arthropod Struct Dev 2013; 42:297-308. [PMID: 23567492 DOI: 10.1016/j.asd.2013.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 03/19/2013] [Accepted: 03/20/2013] [Indexed: 06/02/2023]
Abstract
Gryon pennsylvanicum is a platygastrid hymenopteran that has lately received increasing attention in Europe due to its possible use in biological control of the conifer seed bug pest Leptoglossus occidentalis. Here the male reproductive system and the spermatogenesis of this species, along with those of Gryon muscaeformis, are examined ultrastructurally for the first time. The male genital system is formed by a pair of testes, each containing only one follicle, a pair of accessory glands and deferent ducts connected to a single ejaculatory duct. All the stages of spermatogenesis are described in detail. Characteristic features of the Gryon spp. sperm, which are 100 μm long, are the presence of a polygonal nucleus, only one mitochondrial derivative, the occurrence of the centriole adjunct and a typical insect 9 + 9 + 2 flagellar axoneme. The single derivative, however, results from a process in which one of the two mitochondria is lost during spermiogenesis. Unlike in other insects, two centrioles occur in spermatids as a consequence of the ameiotic parthenogenesis. These characteristics stand as a valuable tool for phylogenetic inferences. Furthermore this study suggests a useful strategy for laboratory mass rearing.
Collapse
Affiliation(s)
- Francesco Paoli
- Consiglio per la Ricerca e la sperimentazione in Agricoltura, Centro di Ricerca per l'Agrobiologia e la Pedologia (CRA-ABP), via di Lanciola 12/a, Cascine del Riccio, 50125 Firenze, Italy.
| | | | | | | |
Collapse
|
27
|
Paget DZ, Ricciardi W, Jakab Z, Paoli F, Kamper-Jorgensen F, Jorgensen T. European Public Health News * EUPHA President's Column * EUPHA office news * Message from the Who Regional Director for Europe: Non-Communicable Diseases, Inequalities and Development * Health at a Glance: Europe 2010 * Public Health and Welfare - Welfare Development and Health, 10-12 November 2011, the Bella Centre, Copenhagen, Denmark. Eur J Public Health 2011. [DOI: 10.1093/eurpub/ckr022] [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: 11/13/2022] Open
|
28
|
Affiliation(s)
- F Labarthe
- Service Pédiatrie R, Hôpital Clocheville, CHRU Tours, 37044 Tours Cedex 1 Université François-Rabelais, INSERM U921, Tours, France.
| | | | | |
Collapse
|
29
|
Sergioli G, Ledda A, Paoli F, Giuntini R, Kowalski T, Montagna F, Freytes H, Marini C. Two cooperative versions of the Guessing Secrets problem. Inf Sci (N Y) 2009. [DOI: 10.1016/j.ins.2009.06.014] [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: 10/20/2022]
|
30
|
Bonnefoy R, Labarthe F, Paoli F, Chantreuil J, Barthez MA, Froissart R, Poinsot J, Chantepie A. [Enzyme replacement therapy in a boy with infantile Pompe disease: cardiac follow-up]. Arch Pediatr 2008; 15:1760-4. [PMID: 18995995 DOI: 10.1016/j.arcped.2008.09.014] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2008] [Revised: 06/04/2008] [Accepted: 09/08/2008] [Indexed: 11/19/2022]
Abstract
Pompe disease is an autosomal recessive glycogen storage disorder caused by acid-alpha-glucosidase deficiency. The infantile form is usually fatal by 1 year of age in the absence of specific therapy. We report the cardiac follow-up of a 4-month-old boy treated with enzyme replacement therapy (ERT) for 8 months. The patient had no cardiac failure at the age of 1 year. Before starting ERT, ECG showed a shortened PR interval, with huge QRS complexes and biventricular hypertrophy; echocardiography demonstrated major hypertrophic cardiomyopathy. The QRS voltage (SV1+RV6) decreased from 13 to 2.9 mV after 32 weeks of ERT, suggesting a progressive reduction of cardiac hypertrophy and intracellular glycogen excess. The PR interval increased from 60 to 90 ms. A block of the right bundle branch appeared after 13 weeks of treatment. The indexed left ventricular mass decreased from 240 to 90 g/m2 after 30 weeks of ERT. The left ventricular ejection fraction decreased transitorily between the 5th and the 15 th weeks of treatment. In summary, ERT is an efficient therapeutic approach for the cardiomyopathy of infantile Pompe disease. However, the possible occurrence of a right bundle branch block and a transitory alteration in the ejection fraction highlight the importance of cardiac follow-up.
Collapse
Affiliation(s)
- R Bonnefoy
- Pôle de médecine pédiatrique, université François-Rabelais, CHRU de Tours, Tours, France
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Chantepie A, Paoli F, Bonnefoy R, Bah G, Marchand M, Toutain A. SFP-P125 – Cardiologie – Anasarque révélant un syndrome Camptodactylie-Arthropathie-Coxa vara-Péricardite. Arch Pediatr 2008. [DOI: 10.1016/s0929-693x(08)72255-3] [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: 11/27/2022]
|
32
|
Rorandelli R, Paoli F, Cannicci S, Mercati D, Giusti F. Characteristics and fate of the spermatozoa ofInachus phalangium (Decapoda, Majidae): Description of novel sperm structures and evidence for an additional mechanism of sperm competition in brachyura. J Morphol 2008; 269:259-71. [PMID: 17806132 DOI: 10.1002/jmor.10566] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [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: 11/10/2022]
Abstract
Various aspects of the reproductive anatomy of the spider crab Inachus phalangium are investigated utilizing light and electron microscopy. Spermatozoal ultrastructure reveals the presence of a glycocalyx in the peripheral region of the periopercular rim, never recorded before in crustacean sperm cells. Sperm cell morphological traits such as semi-lunar acrosome shape, centrally perforate and flat operculum, and absence of a thickened ring, are shared only with Macropodia longirostris, confirming a close phylogenetic relationship of these species and their separation from the other members of the family Majidae. Spermatozoa are transferred to females inside spermatophores of different sizes, but during ejaculate transfer, larger spermatophores might be ruptured by tooth-like structures present on the ejaculatory canal of the male first gonopod, releasing free sperm cells. Such a mechanism could represent the first evidence of a second form of sperm competition in conflict with sperm displacement, the only mechanism of sperm competition known among Brachyura, enabling paternity for both dominant and smaller, non-dominant, males. In addition, we propose several hypotheses concerning the remote and proximal causes of the existence of large seminal receptacles in females of I. phalangium. Among these, genetically diverse progeny, reduction of sexual harassment and phylogenetic retention seem the most plausible, while acquisition of nutrients from seminal fluids, demonstrated in other arthropods, and suggested by previous studies, could be discarded on the basis of the presented data.
Collapse
Affiliation(s)
- Rocco Rorandelli
- Dipartimento di Biologia Animale e Genetica Leo Pardi, University of Florence, 50125 Florence, Italy.
| | | | | | | | | |
Collapse
|
33
|
Paoli F, Dragulescu A, Amedro P, Ovaert C, Mas B, Ghez O, Metras D, Kreitmann B, Fraisse A. [A monocenter experience of ventricular septal defects treated by catherization]. Arch Mal Coeur Vaiss 2007; 100:380-5. [PMID: 17646761] [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] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
INTRODUCTION Studies on ventricular septal defects closure by catheterization confirm its feasibility without reporting clearly the indications and difficulties encountered. PATIENTS AND RESULTS From 2001 to end-2006, 22 patients benefited from 26 ventricular septal defects closure (15 muscular and 7 membranous) at a median age and weight of 2.1 years and 12.5 kg, respectively. A perventricular catheterization was performed in 2 cases. Eighteen patients (82%) benefited from 21 prostheses with success. The closure was associated to surgery in 9 cases (41%) whereas it substituted surgery in the other 13 cases (59%). The median duration of the procedure was significantly longer in case of muscular ventricular septal defects (215 min (175-510) vs. 170 min (120-225), p=0.04). Major complications are reported in 5 cases out of 26 catheterization (19%), including one death related to conduction block, occurring after the implantation of two prostheses in a patient with aortopulmonary transposition. All other associated cardiac diseases have been corrected. A prosthetic emboli occurred in one case, 1.5 months after implantation. It had been retrieved by catheterization. Two patients died afterwards from non-procedure-related causes. After a median follow-up of 1.1 years, the 17 other patients remained asymptomatic. One child with a perimembranous prosthesis presents a paroxystic atrio-ventricular block. CONCLUSION Even though indispensable for the curative treatment of several congenital cardiac diseases including non-operable ventricular septal defects, this procedure is related to a substantial rate of mortality and morbidity. The risk of atrio-ventricular block must be adequately considered in case of membranous ventricular septal defects.
Collapse
Affiliation(s)
- F Paoli
- Cardiologie pédiatrique, Département de cardiologie, Hôpital d'Enfants de la Timone, 264, rue Saint-Pierre, 13385 Marseille cedex 5
| | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Paoli F. [Prevention of AIDS in high school students]. Soins 2001:45. [PMID: 12008604] [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: 02/25/2023]
|
35
|
Ravani M, Bertolaccini P, Palmieri C, Bonini R, Paoli F, Picano E, Trianni G, Rizza A, Berti S, Maneschi A, Biagini A. Acute renal hemodynamic and cardiac hemodynamic effects of endogenous adenosine accumulation in chronic heart failure. Eur J Heart Fail 2000. [DOI: 10.1016/s1388-9842(00)80323-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- M. Ravani
- CNR “G. Pasquinucci” Hospital; Italy
| | | | | | - R. Bonini
- Nuclear Medicine Departement; Massa Italy
| | - F. Paoli
- CNR “G. Pasquinucci” Hospital; Italy
| | - E. Picano
- CNR “G. Pasquinucci” Hospital; Italy
| | | | - A. Rizza
- CNR “G. Pasquinucci” Hospital; Italy
| | - S. Berti
- CNR “G. Pasquinucci” Hospital; Italy
| | | | | |
Collapse
|
36
|
Coran SA, Bambagiotti-Alberti M, Giannellini V, Baldi A, Picchioni G, Paoli F. Development of a densitometric method for the determination of cephalexin as an alternative to the standard HPLC procedure. J Pharm Biomed Anal 1998; 18:271-4. [PMID: 9863969 DOI: 10.1016/s0731-7085(98)00167-8] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A HPTLC-densitometric method was developed in order to obtain a reliable procedure for routine analysis of cephalexin in pharmaceutical formulations. Optimization of TLC conditions for the densitometric scanning was reached by eluting HPTLC silica gel plates in an horizontal developing chamber. Quantitation of cephalexin was performed in single beam reflectance mode by using a computer-controlled densitometric scanner and applying a five-point calibration. A linear regression has been found in the 200-1000 ng range. The setup method is precise, reproducible and accurate. Recovery was also assessed by comparison with the HPLC USP XXIII alternate method. In this case HPTLC-densitometry appears worth of consideration as being relatively inexpensive and time-saving (up to 12 samples can be determined simultaneously in less than 15 min with a solvent consumption of about 15 ml). The results suggest that the proposed method may be used in place of HPLC for the routine quantitation of cephalexin in both pure and dosage forms.
Collapse
Affiliation(s)
- S A Coran
- Dipartimento Scienze Farmaceutiche, Università di Firenze, Italy
| | | | | | | | | | | |
Collapse
|
37
|
Maffei S, Baroni M, Terrazzi M, Paoli F, Ferrazzi P, Biagini A. Preoperative assessment of coronary artery disease in aortic stenosis: a dipyridamole echocardiographic study. Ann Thorac Surg 1998; 65:397-402. [PMID: 9485235 DOI: 10.1016/s0003-4975(97)01177-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The aim of this study was to establish the feasibility, safety, and diagnostic accuracy of the dipyridamole echocardiography test in patients with severe aortic valve stenosis for noninvasive detection of coexisting coronary artery disease. METHODS The high-dose dipyridamole echocardiography test was performed in 52 patients with severe aortic stenosis; all patients also underwent coronary angiography, independent of test results, before cardiac operation. RESULTS The dipyridamole echocardiography test was completed without major complications. One patient had transient atrial fibrillation that was reversed by aminophylline. Thirty-one patients (60%) had a negative test result; all had normal coronary arteries. Ten of the 21 patients (48%) with a positive test result had coexisting coronary artery disease. The positive predictive value of the dipyridamole echocardiography test for detection of coronary disease in patients with severe aortic stenosis was 48%. The negative predictive value was 100%. The sensitivity was 100% and the specificity was 74%. CONCLUSIONS Dipyridamole echocardiography is a safe and feasible tool in patients with severe aortic stenosis eligible for a cardiac operation. A negative test result reliably rules out a significant stenosis, whereas a positive one is much less accurate in predicting coronary artery disease.
Collapse
Affiliation(s)
- S Maffei
- CNR Institute of Clinical Physiology, Pisa, Italy
| | | | | | | | | | | |
Collapse
|
38
|
Maffei S, Baroni M, Terrazzi M, Piacenti M, Paoli F, Camerini E, Verunelli F, Salvatore L, Biagini A. Ambulatory follow-up of aortic dissection: comparison between computed tomography and biplane transesophageal echocardiography. Int J Card Imaging 1996; 12:105-11. [PMID: 8864789 DOI: 10.1007/bf01880741] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
UNLABELLED Aim of the study was to assess the relative usefulness of transesophageal echocardiography (TEE) and X-ray computed tomography (CT) in the follow-up of patients who survived an aortic dissection. MATERIALS AND METHODS We evaluated 44 patients (age = 57 +/- 12 years) with treated aortic dissection: 14 had a De Bakey type I, 20 a type II and 1 patient a type III dissection treated surgically: 1 patient had a type I, 1 a type II and 7 a type III dissection treated medically. All entered an outpatient follow-up program with serial evaluations at 1, 6 and 12 months after initial diagnosis by dual noninvasive imaging protocol. A contrast-enhanced CT scan and a TEE with biplane probe were performed on the same day and in random order. RESULTS A total of 252 evaluations with both CT and TEE were considered. A completely normal study was found in 45 TEE and 48 CT evaluations. The following abnormal findings could be documented by one or both techniques: thrombus in the false lumen (TEE: n = 48; CT: n = 45 evaluations); intimal flap (TEE and CT: n = 68); aortic dilatation (TEE and CT: n = 15); pericardial effusion (TEE and CT: n = 3); aortic pseudoaneurysm (TEE: n = 2; CT: n = 3); isthmic coarctation (TEE and CT: n = 1). Regarding the presence or absence of these abnormalities, which are within the diagnostic domain of both imaging techniques, the results were fully concordant in 245 studies, and discordant in 7, with an overall agreement of 97%. In addition, some abnormal findings could be detected by TEE only: aortic insufficiency (n = 36); intimal tear (n = 25); spontaneous echocontrast effect in the false lumen (n = 39 evaluations). Other abnormal findings could be detected by CT only: a pleural effusion in 4, a truncus anonymous dissection in 1, a pseudoaneurysm due to suture dehiscence of the distal anastomosis of the ascending aorta in 1 evaluation (which yielded ambiguous results by TEE, with turbulent flow departing from the graft). CONCLUSION Both CT and TEE are atraumatic, safe and accurate techniques for serial follow-up imaging of patients treated for aortic dissection. Information provided by CT is largely redundant, rather than additive, to that provided by TEE. The latter should be probably preferred for shorter imaging time, accuracy and convenience, although CT might still play a role in selected cases of ambiguous TEE results.
Collapse
Affiliation(s)
- S Maffei
- CNR, Institute of Clinical Physiology, Cardiosurgical and Radiology Department, Pisa, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Baroni M, Maffei S, Terrazzi M, Palmieri C, Paoli F, Biagini A. Mechanisms of regional ischaemic changes during dipyridamole echocardiography in patients with severe aortic valve stenosis and normal coronary arteries. Heart 1996; 75:492-7. [PMID: 8665343 PMCID: PMC484348 DOI: 10.1136/hrt.75.5.492] [Citation(s) in RCA: 28] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVE Vasodilator stress echocardiography can cause myocardial ischaemia in patients with severe aortic valve stenosis and angiographically normal coronary arteries. The aim of the study was to determine the mechanism of ischaemia in this clinical model. METHODS The study group comprised patients with severe aortic valve stenosis and normal coronary arteries: 25 patients (17 males, eight females; age 63 (SD 11) years) underwent a high dose (up to 0.84 mg/kg over 10 min) dipyridamole echocardiography test both before (2-4 d) and after (10-15 d) aortic valve replacement. Mean aortic pressure gradient was 96 (15) mm Hg, with a left ventricular mass index of 228 (49) g/m2. The dipyridamole echocardiography test was well tolerated and interpretable in all patients. RESULTS Dipyridamole infusion induced chest pain in seven patients before and in no patient after surgery (28 v 0%, P < 0.01), ST segment depression in 12 patients before and two after surgery (48 v 8%, P < 0.01), and a transient regional dyssynergy in 10 patients before and two after surgery (40 v 8%, P < 0.01). In the preoperative evaluation, patients with an echocardiographically positive dipyridamole echocardiography test were comparable with patients with negative test as far as left ventricular mass index [240 (67) v 230 (64) g/m2, NS] and mean aortic pressure gradient [95 (22) v 92 (21) mm Hg, NS] were concerned. When compared to the preoperative assessment, the resting echo assessment in the postoperative evaluation showed unchanged values of left ventricular mass index [pre 228 (49) g/m2 v post 220 (36) g/m2, NS], but markedly decreased values of mean aortic gradient [pre 95 (15) mm Hg v post 22 (5) mm Hg, P < 0.01] and left ventricular wall stress index [pre 134 (30) g/cm2 v post 89 (19) g/cm2]. CONCLUSIONS Dipyridamole echocardiography is a suitable clinical technique for assessing the ischaemic vulnerability of the left ventricle in severe aortic valve stenosis with angiographically normal coronary arteries. The frequent disappearance of the ischaemic response early after aortic valve replacement suggests that haemodynamic factors such as compressive diastolic wall stress or afterload reduction are important components of myocardial ischaemic vulnerability under these circumstances.
Collapse
Affiliation(s)
- M Baroni
- CNR Institute of Clinical Physiology, Pisa, Italy
| | | | | | | | | | | |
Collapse
|
40
|
Rovai D, DeMaria AN, Maffei S, Terrazzi M, Baroni M, Paoli F, Verunelli F, Distante A, Biagini A, Salvatore L. Gaseous coronary embolism as a cause of myocardial ischemia during coronary artery bypass grafting. Am J Cardiol 1995; 75:282-5. [PMID: 7832141 DOI: 10.1016/0002-9149(95)80038-t] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- D Rovai
- CNR Clinical Physiology Institute, Pisa
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Biagini A, Maffei S, Baroni M, Piacenti M, Terrazzi M, Paoli F, Trianni G, Picano E, Salvatore L. Familiar clustering of aortic dissection in polycystic kidney disease. Am J Cardiol 1993; 72:741-2. [PMID: 8249856 DOI: 10.1016/0002-9149(93)90896-k] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- A Biagini
- CNR Institute of Clinical Physiology, University, Pisa, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Maffei S, Baroni M, Terrazzi M, Piacenti M, Paoli F, Comite C, Verunelli F, Salvatore L, Biagini A. Prognostic value of the dipyridamole echocardiography test performed early after aortocoronary bypass surgery. Echocardiography 1993; 10:107-12. [PMID: 10148118 DOI: 10.1111/j.1540-8175.1993.tb00019.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 11/30/2022] Open
Abstract
It has been demonstrated that high dose (up to 0.84 mg/kg over 10 min) dipyridamole echocardiography stress testing is feasible even in the first few hours after coronary artery bypass graft surgery and can be used to assess the beneficial physiological effects of coronary revascularization as well as graft patency. The aim of this study was to assess the role of dipyridamole echocardiography testing performed shortly after myocardial revascularization in the stratification of prognosis during follow-up. We studied 49 consecutive patients (45 males and 4 females; mean age 56 +/- 8 years) referred to our institute for elective myocardial revascularization. Six patients had single, 14 double, and 29 triple vessel disease. Forty-two left internal mammary artery grafts, 16 sequential venous grafts, and 45 single venous grafts were performed. All patients were submitted to dipyridamole echocardiography testing before (range 1-3 days) and shortly after (range 5-7 days) myocardial revascularization, always with the patients off antianginal medication. An arbitrary wall-motion score grading from 0 to 3 (normal, hypokinesia, akinesia, and dyskinesia) was applied to the seven regions into which the left ventricle was divided. Before surgery 48 patients showed wall-motion abnormalities during the test (47 patients also presented ECG changes). Angina occurred in 48 patients. One patient had ischemic ECG changes and angina. The mean wall-motion score was 3.11 per patient before and 6.5 per patient after the test (P less than 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- S Maffei
- C.N.R. Institute of Clinical Physiology, Cardiosurgical Department and University, Pisa, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Kraft G, Pugliese S, Mazzarisi A, Serasini, Berti S, Palmieri C, Tongiani R, Paoli F, Bonini R, Biagini A. [Territorial organization of a surveillance system for the patient at risk of sudden death]. Minerva Anestesiol 1991; 57:1637-44. [PMID: 1795801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- G Kraft
- Istituto di Fisiologia Clinica del C.N.R., Pisa
| | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Baronti M, Paoli F, Nucci C, Bientinesi R, Palatinsky M. [Hematoma of the adrenal gland in the newborn infant. Clinical course. Presentation of 20 cases]. Arch Ital Urol Nefrol Androl 1991; 63 Suppl 2:115-7. [PMID: 1836649] [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] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The Authors stress the importance of a correct sonographic study in the follow-up of neonatal adrenal hemorrhage; the diagnostic conclusion are: the best criterion for differential diagnosis is the chronological variability. However the differential diagnosis is rather easy. The differential d. usually is against cystic-neuroblastoma, cortical renal cyst, adrenal abscess. They remark that laparatomy is unnecessary.
Collapse
Affiliation(s)
- M Baronti
- Servizio di Radiologia e Terapia Fisica, Presidio Ospedaliero di Orbetello
| | | | | | | | | |
Collapse
|
45
|
Giovannini MG, Casamenti F, Nistri A, Paoli F, Pepeu G. Effect of thyrotropin releasing hormone (TRH) on acetylcholine release from different brain areas investigated by microdialysis. Br J Pharmacol 1991; 102:363-8. [PMID: 1901747 PMCID: PMC1918036 DOI: 10.1111/j.1476-5381.1991.tb12179.x] [Citation(s) in RCA: 70] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
1. The effect of thyrotropin releasing hormone (TRH) administration upon acetylcholine (ACh) release in freely moving rats was investigated by means of transversal microdialysis coupled to h.p.l.c. TRH administered either s.c. or via local perfusion increased the ACh release from cortex and hippocampus but not from the striatum. The increase in ACh release was maintained after 7 days of s.c. administration of TRH. 2. After s.c. injection of the neuropeptide, the increase in ACh release was dose-dependent and reached a maximum at 40 min after administration. The maximal percentage increases were 18, 52, 66 and 89% at doses of 1, 2.5, 5 and 10 mg kg-1 and 35, 48 and 54% at doses of 2.5, 5 and 10 mg kg-1 in the cortex and hippocampus, respectively. The effect of TRH was dependent on neuronal activity since it was completely inhibited by perfusion with tetrodotoxin (TTX), 5 X 10(-7) M. 3. Perfusion with TRH, 2.5 micrograms microliters-1, caused 198% and 150% increase in ACh release 60 and 80 min after the beginning of the perfusion in the cortex and hippocampus, respectively. After this initial peak, a 100% increase in ACh release persisted throughout the perfusion. 4. Systemic TRH administration was followed by marked hyperactivity and stereotyped behaviour that showed a time course shorter than that of the increase in ACh release. 5. These findings demonstrate that TRH exerts a strong stimulant action on cortical and hippocampal cholinergic pathways.
Collapse
Affiliation(s)
- M G Giovannini
- Department of Preclinical and Clinical Pharmacology, University of Florence, Italy
| | | | | | | | | |
Collapse
|
46
|
Paoli F, Spignoli G, Pepeu G. Oxiracetam and D-pyroglutamic acid antagonize a disruption of passive avoidance behaviour induced by the N-methyl-D-aspartate receptor antagonist 2-amino-5-phosphonovalerate. Psychopharmacology (Berl) 1990; 100:130-1. [PMID: 2153307 DOI: 10.1007/bf02245803] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Intracerebroventricular administration (6 micrograms/2 microliters) of D-2-amino-5-phosphonovalerate (AP-5), a specific antagonist of the NMDA receptors, prior to training impaired the passive avoidance in a retention test in rat. Pretreatment with oxiracetam and D-pyroglutamic acid at doses ranging from 50 to 500 mg/kg SC dose-dependently prevented the disruptive effect of AP-5. This finding indicates that an interaction with excitatory amino acid NMDA type receptors may be important in behavioural effects of the two pyrrolidinone derivatives.
Collapse
Affiliation(s)
- F Paoli
- Department of Preclinical and Clinical Pharmacology, University of Florence, Italy
| | | | | |
Collapse
|
47
|
Maggini M, Paoli F, De Giuli S. [Primary malignant tumors of the liver in children. Presentation of 4 cases]. Minerva Pediatr 1976; 28:1969-84. [PMID: 1012226] [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: 12/25/2022]
|
48
|
Buchet R, Choukroun PL, Moulin JD, Paoli F. [Erosive aneurysm of the aortic arch]. J Radiol Electrol Med Nucl 1970; 51:645-646. [PMID: 5489104] [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: 05/21/2023]
|
49
|
Paoli F, Brandigi L. [5 cases of inhalation of talc]. Minerva Pediatr 1970; 22:1772-4. [PMID: 5480443] [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: 01/15/2023]
|
50
|
Paoli F, Casini Raggi G, Romoli F, Pazzaglia R. [Gamma globulin interference with lymphocytic cytoplasmic RNA and its immunoelectrophoretic tracing in the newborn]. Riv Clin Pediatr 1969; 82:360-3. [PMID: 4103059] [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: 01/08/2023]
|