484 results on '"Rebecchi, Lorena"'
Search Results
2. A data set on the distribution of Rotifera in Antarctica
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Garlasché, Giuseppe, Karimullah, Karimullah, Iakovenko, Nataliia, Velasco-Castrillón, Alejandro, Janko, Karel, Guidetti, Roberto, Rebecchi, Lorena, Cecchetto, Matteo, Schiaparelli, Stefano, Jersabek, Christian D., De Smet, Willem H., and Fontaneto, Diego
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ANTABIF ,Antarctica ,Bdelloidea ,biodiversity ,biogeography ,GBIF ,Monogononta ,rotifers - Abstract
We present a data set on Antarctic biodiversity for the phylum Rotifera, making it publicly available through the Antarctic Biodiversity Information facility. We provide taxonomic information, geographic distribution, location, and habitat for each record. The data set gathers all the published literature about rotifers found and identified across the Continental, Maritime, and Subantarctic biogeographic regions of Antarctica. A total of 1455 records of rotifers in Antarctica found from 1907 to 2018 is reported, with information on taxonomic hierarchies, updated nomenclature, geographic information, geographic coordinates, and type of habitat. The aim is to provide a georeferenced data set on Antarctic rotifers as a baseline for further studies, to improve our knowledge on what has been considered one of the most diverse and successful groups of animals living in Antarctica.
- Published
- 2020
3. Production of reactive oxygen species and involvement of bioprotectants during anhydrobiosis in the tardigrade Paramacrobiotus spatialis
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Giovannini, Ilaria, Boothby, Thomas C., Cesari, Michele, Goldstein, Bob, Guidetti, Roberto, and Rebecchi, Lorena
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- 2022
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4. Tardigrades Use Intrinsically Disordered Proteins to Survive Desiccation
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Boothby, Thomas C, Tapia, Hugo, Brozena, Alexandra H, Piszkiewicz, Samantha, Smith, Austin E, Giovannini, Ilaria, Rebecchi, Lorena, Pielak, Gary J, Koshland, Doug, and Goldstein, Bob
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Plant Biology ,Biological Sciences ,Acclimatization ,Animals ,Dehydration ,Desiccation ,Enzyme Stability ,Enzymes ,Escherichia coli ,Intrinsically Disordered Proteins ,Protein Conformation ,RNA Interference ,Saccharomyces cerevisiae ,Tardigrada ,Up-Regulation ,Vitrification ,CAHS proteins ,anhydrobiosis ,cryptobiosis ,desiccation tolerance ,freeze tolerance ,intrinsically disordered proteins ,tardigrades ,trehalose ,vitrification ,water bear ,Medical and Health Sciences ,Developmental Biology ,Biological sciences ,Biomedical and clinical sciences ,Health sciences - Abstract
Tardigrades are microscopic animals that survive a remarkable array of stresses, including desiccation. How tardigrades survive desiccation has remained a mystery for more than 250 years. Trehalose, a disaccharide essential for several organisms to survive drying, is detected at low levels or not at all in some tardigrade species, indicating that tardigrades possess potentially novel mechanisms for surviving desiccation. Here we show that tardigrade-specific intrinsically disordered proteins (TDPs) are essential for desiccation tolerance. TDP genes are constitutively expressed at high levels or induced during desiccation in multiple tardigrade species. TDPs are required for tardigrade desiccation tolerance, and these genes are sufficient to increase desiccation tolerance when expressed in heterologous systems. TDPs form non-crystalline amorphous solids (vitrify) upon desiccation, and this vitrified state mirrors their protective capabilities. Our study identifies TDPs as functional mediators of tardigrade desiccation tolerance, expanding our knowledge of the roles and diversity of disordered proteins involved in stress tolerance.
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- 2017
5. Dormancy in Freshwater Tardigrades
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Bertolani, Roberto, Guidetti, Roberto, Altiero, Tiziana, Nelson, Diane R., Rebecchi, Lorena, Dumont, Henri J., Series Editor, Alekseev, Victor R., editor, and Pinel-Alloul, Bernadette, editor
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- 2019
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6. The xerophilic genera Xerobiotus and Pseudohexapodibius (Macrobiotidae; Tardigrada): biodiversity, biogeography and phylogeny
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Vincenzi, Joel, primary, Cesari, Michele, additional, Kaczmarek, Łukasz, additional, Roszkowska, Milena, additional, Mioduchowska, Monika, additional, Rebecchi, Lorena, additional, Kiosya, Yevgen, additional, and Guidetti, Roberto, additional
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- 2023
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7. Molecular palaeontology illuminates the evolution of ecdysozoan vision
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Fleming, James F., Kristensen, Reinhardt Møbjerg, Sørensen, Martin Vinther, Park, Tae-Yoon S., Arakawa, Kazuharu, Blaxter, Mark, Rebecchi, Lorena, Guidetti, Roberto, Williams, Tom A., Roberts, Nicholas W., Vinther, Jakob, and Pisani, Davide
- Published
- 2018
8. Tardigrades of Kristianstads Vattenrike Biosphere Reserve with description of four new species from Sweden
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Massa, Edoardo, Guidetti, Roberto, Cesari, Michele, Rebecchi, Lorena, and Jönsson, K. Ingemar
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- 2021
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9. Extreme-tolerance mechanisms in meiofaunal organisms: a case study with tardigrades, rotifers and nematodes
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Rebecchi, Lorena, Boschetti, Chiara, and Nelson, Diane R.
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- 2020
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10. Reproduction, Development and Life Cycles
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Altiero, Tiziana, Suzuki, Atsushi C., Rebecchi, Lorena, Feldhaar, Heike, Series Editor, Schmidt-Rhaesa, Andreas, Series Editor, and Schill, Ralph O., editor
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- 2018
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11. Cytology and Cytogenetics
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Bertolani, Roberto, Rebecchi, Lorena, Feldhaar, Heike, Series Editor, Schmidt-Rhaesa, Andreas, Series Editor, and Schill, Ralph O., editor
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- 2018
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12. Composition and structural organization of tardigrades feeding apparatus focusing on chitin and other autofluorescent molecules.
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Massa, Edoardo, Rebecchi, Lorena, and Guidetti, Roberto
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CHITIN , *TARDIGRADA , *SIGNAL separation , *LASER microscopy , *MOLECULES - Abstract
Chitin is a structural sugar broadly distributed among all kingdoms, and it is present in Tardigrada as α-chitin. Its presence in the buccopharyngeal apparatus of tardigrades was confirmed in previous studies and associated with autofluorescence emission, and within this emission three components were identified. This study aimed to localize the chitin in the buccopharyngeal apparatus and to understand the nature of the other autofluorescent components. Calcofluor white staining of three tardigrade species (Echiniscus sp. Milnesium sp. Macrobiotus sp.) allowed the chitin localization in the feeding structures and the separation of its signal from the whole autofluorescence emission via confocal laser scanning microscopy. Comparing different fluorochromes found in tardigrades and in the nematode Panagrellus pycnus , lambda and square lambda analyses showed that part of the autofluorescent signal is imputable to a collagen-like compound. The images acquired were analysed for morphological, functional, and evolutionary purposes. Chitin and the other autofluorescent compound were localized in the structures of the buccopharyngeal apparatus. Their distribution highlighted the presence of different levels of 'flexibility/strength' of the structures providing better understanding of their mechanical properties and relating them to the characteristics of the three major limnoterrestrial clades of the phylum Tardigrada. [ABSTRACT FROM AUTHOR]
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- 2024
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13. The xerophilic genera Xerobiotus and Pseudohexapodibius (Macrobiotidae; Tardigrada): biodiversity, biogeography and phylogeny.
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Vincenzi, Joel, Cesari, Michele, Kaczmarek, Łukasz, Roszkowska, Milena, Mioduchowska, Monika, Rebecchi, Lorena, Kiosya, Yevgen, and Guidetti, Roberto
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BIOGEOGRAPHY ,PHYLOGENY ,BIOLOGICAL classification ,TARDIGRADA ,PHENOTYPES ,BIODIVERSITY - Abstract
The genera Xerobiotus and Pseudohexapodibius are xerophilic and characterized by reduced appendages and claws as adaptations to move between small interstices. To increase the knowledge of their biodiversity, biogeography and phylogeny, several specimens from European countries and Australia were analysed using an integrative approach, i.e. morphological, karyological and molecular studies (18S, 28S, cox1 , cytb and ITS2). The phylogenetic position of Xerobiotus with respect to the three evolutionary lineages of Macrobiotus remains unchanged with respect to what was previously identified in the phylogeny of Macrobiotidae. The following new Xerobiotus species are described: Xerobiotus litus sp. nov. Xerobiotus arenosum sp. nov. and Xerobiotus reductus sp. nov. It is proposed that Macrobiotus naginae should be transferred to Xerobiotus (Xerobiotus naginae comb. nov.). Pseudohexapodibius degenerans clusters within Xerobiotus and shares morphological and genetic characters with this genus. Some discrepancies between genetic and phenotypic data are found among the analysed species. Even between the results obtained with analysed genes disagreements are found, with cox1 and cytb generally agreeing with phenotypic results more than ITS2. Genotypic and phenotypic data are useful tools for species identification, but they have to be evaluated critically to obtain reliable results. [ABSTRACT FROM AUTHOR]
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- 2024
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14. Increasing temperature-driven changes in life history traits and gene expression of an Antarctic tardigrade species
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Giovannini, Ilaria, primary, Manfrin, Chiara, additional, Greco, Samuele, additional, Vincenzi, Joel, additional, Altiero, Tiziana, additional, Guidetti, Roberto, additional, Giulianini, Piero, additional, and Rebecchi, Lorena, additional
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- 2023
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15. The Microbial Community of Tardigrades : Environmental Influence and Species Specificity of Microbiome Structure and Composition
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Vecchi, Matteo, Newton, Irene L.G., Cesari, Michele, Rebecchi, Lorena, and Guidetti, Roberto
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- 2018
16. Phylum Tardigrada
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Nelson, Diane R., primary, Guidetti, Roberto, additional, Rebecchi, Lorena, additional, Kaczmarek, Łukasz, additional, and McInnes, Sandra, additional
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- 2020
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17. Contributors to Volume V
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Alves, Roberto G., primary, Fernandez, Monica Ammon, additional, dos Santos, Sonia Barbosa, additional, Barker, Gary M., additional, Berning, Maria Isabel, additional, Ribeiro, Felipe Bezerra, additional, Bolek, Matthew G., additional, Bond-Buckup, Georgina, additional, Brusa, Francisco, additional, Bueno, Alessandra, additional, Burdman, Luciana, additional, Calheira, Ludimila, additional, Camacho, Ana Isabel, additional, de Mattos, Aline Carvalho, additional, Thiengo, Silvana Carvalho, additional, Claps, María Cristina, additional, Cohen, Rosa Graciela, additional, Collado, Gonzalo A., additional, Cruz-Quintana, Yanis, additional, Cuezzo, Maria Gabriela, additional, Damborenea, Cristina, additional, De Ley, Paul, additional, de Villalobos, Cristina, additional, Deserti, María Irene, additional, dos Santos-Silva, Edinaldo Nelson, additional, Doucet, Marcelo E., additional, Dreher Mansur, Maria Cristina, additional, da Silva, Elizangela Feitosa, additional, Fernández, Leonardo, additional, Ferretti, Nelson, additional, Fontaneto, Diego, additional, Fredes, Natalia A., additional, Gelder, Stuart R., additional, Gil, João, additional, Glasby, Christopher J., additional, Gómez, Samuel, additional, González, Exequiel R., additional, Grohmann, Priscila A., additional, Guerrero-Kommritz, Jürgen, additional, Guidetti, Roberto, additional, Gutiérrez-Aguirre, Martha A., additional, Gutiérrez Grégoric, Diego Eduardo, additional, Hamada, Neusa, additional, Hanelt, Ben, additional, Hann, Brenda J., additional, Higuti, Janet, additional, Ituarte, Cristián, additional, Jara, Carlos G., additional, José de Paggi, Susana B., additional, Kaczmarek, Łukasz, additional, Kosakyan, Anush, additional, Krashevska, Valentyna, additional, Küppers, Gabriela C., additional, Lara, Enrique M., additional, Lax, Paola, additional, Leal-Zanchet, Ana Maria, additional, de Lacerda, Luiz Eduardo Macedo, additional, Magalhães, Célio, additional, Pimpão, Daniel Mansur, additional, Mantelatto, Fernando L., additional, Marchese, Mercedes R., additional, Marinone, María Cristina, additional, Marques, Taisa M., additional, Martens, Koen, additional, Martin, Daniel, additional, Martínez, Pablo A., additional, McInnes, Sandra, additional, Mercado-Salas, Nancy F., additional, Miyahira, Igor Christo, additional, Nelson, Diane R., additional, Noreña, Carolina, additional, Antoniazzi, Thiago Nunes, additional, Oceguera-Figueroa, Alejandro, additional, Arruda, Janine Oliveira, additional, Orellana Liebbe, Maria Cristina, additional, Constanza Ovando, Ximena Maria, additional, Pedraza, Manuel, additional, Pedraza-Lara, Carlos, additional, Pepato, Almir Rogério, additional, Peralta, Marcela, additional, Perbiche-Neves, Gilmar, additional, Pinheiro, Ulisses, additional, Pitombo, Fabio Bettini, additional, Pointier, Jean-Pierre, additional, Pompozzi, Gabriel, additional, Previattelli, Daniel, additional, Price, W. Wayne, additional, Araújo, Thiago Quintão, additional, Rebecchi, Lorena, additional, da Rocha, Carlos E.F., additional, Rogers, D. Christopher, additional, Rudolph Latorre, Erich Harry, additional, Santana-Piñeros, Ana María, additional, Santos, Sandro, additional, Schmidt-Rhaesa, Andreas, additional, Senna Garraffoni, André Rinaldo, additional, Siemensma, Ferry, additional, da Silva Conceição, Pedro Henrique, additional, da Silva Paiva, Thiago, additional, Stampar, Sérgio N., additional, Strand, Malin, additional, Suárez-Morales, Eduardo, additional, Sundberg, Per, additional, Thorp, James H., additional, Timm, Tarmo, additional, Vázquez, Antonio Alejandro, additional, Wallace, Robert, additional, Wood, Timothy S., additional, and Zanca, Fernanda, additional
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- 2020
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18. Effects of synthetic acid rain and organic and inorganic acids on survival and CaCO3 piercing stylets in tardigrades
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Massa, Edoardo, primary, Rebecchi, Lorena, additional, and Guidetti, Roberto, additional
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- 2023
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19. Reproductive Modes and Genetic Polymorphism in the Tardigrade Richtersius coronifer (Eutardigrada, Macrobiotidae)
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Rebecchi, Lorena, Rossi, Valeria, Altiero, Tiziana, Bertolani, Roberto, and Menozzi, Paolo
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- 2003
20. High diversity in species, reproductive modes and distribution within the Paramacrobiotus richtersi complex (Eutardigrada, Macrobiotidae)
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Guidetti, Roberto, Cesari, Michele, Bertolani, Roberto, Altiero, Tiziana, and Rebecchi, Lorena
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- 2019
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21. Dormancy in Freshwater Tardigrades
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Bertolani, Roberto, primary, Guidetti, Roberto, additional, Altiero, Tiziana, additional, Nelson, Diane R., additional, and Rebecchi, Lorena, additional
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- 2019
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22. Phylum Tardigrada
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Nelson, Diane R., primary, Guidetti, Roberto, additional, and Rebecchi, Lorena, additional
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- 2019
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23. Contributors to Volume IV
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Abebe, Eyualem, primary, Anokhin, Boris, additional, Araujo, Rafael, additional, Bain, Bonnie A., additional, Balsamo, Maria, additional, Bartsch, Ilse, additional, Bekker, Eugeniya I., additional, Bielecki, Aleksander, additional, Brandis, Dirk, additional, Daneliya, Mikhail E., additional, Decraemer, Wilfrida, additional, DeWalt, R. Edward, additional, d’Hondt, Jean-Loup, additional, Eisendle-Flöckner, Ursula, additional, Esteban, Genoveva F., additional, Gelder, Stuart R., additional, Gil, João, additional, Glagolev, Sergei M., additional, Glasby, Christopher J., additional, Govedich, Fredric R., additional, Grilli, Paolo, additional, Guidetti, Roberto, additional, Hansknecht, Tom, additional, Horne, David J., additional, Jankowski, Thomas, additional, Klaus, Sebastian, additional, Korovchinsky, Nikolai M., additional, Kotov, Alexey A., additional, Lee, Dong Ju, additional, Lee, Wonchoel, additional, Lewis, Julian J., additional, Lovell, Lawrence L., additional, Manconi, Renata, additional, Martens, Koen, additional, Martin, Daniel, additional, Martin, Patrick, additional, Meisch, Claude, additional, Morino, Hiroshi, additional, Moser, William E., additional, Nakano, Takafumi, additional, Naruse, Tohru, additional, Nelson, Diane R., additional, Ng, Ngan Kee, additional, Noreña, Carolina, additional, Pati, Sameer Kumar, additional, Petryashov, Victor V., additional, Porfiriev, Andrey, additional, Pronzato, Roberto, additional, Rebecchi, Lorena, additional, Resh, Vincent H., additional, Rogers, D. Christopher, additional, Sarma, S.S.S., additional, Schmidt-Rhaesa, Andreas, additional, Segers, Hendrik, additional, Sinev, Artem Y., additional, Sket, Boris, additional, Smirnov, Nikolai N., additional, Snell, T.W., additional, Strand, Malin, additional, Sundberg, Per, additional, Takhteev, Vadim, additional, Thorp, James H., additional, Timm, Tarmo, additional, Timoshkin, Oleg, additional, Utevsky, Serge, additional, Väinölä, Risto, additional, Van Syoc, Robert J., additional, Vinarski, Maxim V., additional, Wallace, Robert L., additional, Walsh, E.J., additional, Warren, Alan, additional, Watling, Les, additional, Wood, Timothy S., additional, and Yeo, Darren C.J., additional
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- 2019
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24. Evaluation of a Secondary Sex Character in Eutardigrades
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Rebecchi, Lorena and Nelson, Diane R.
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- 1998
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25. Genetic diversity of the brown marmorated stink bug Halyomorpha halys in the invaded territories of Europe and its patterns of diffusion in Italy
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Cesari, Michele, Maistrello, Lara, Piemontese, Lucia, Bonini, Raoul, Dioli, Paride, Lee, Wonhoon, Park, Chang-Gyu, Partsinevelos, Georgios K., Rebecchi, Lorena, and Guidetti, Roberto
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- 2018
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26. Reproduction, Development and Life Cycles
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Altiero, Tiziana, primary, Suzuki, Atsushi C., additional, and Rebecchi, Lorena, additional
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- 2018
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27. Cytology and Cytogenetics
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Bertolani, Roberto, primary and Rebecchi, Lorena, additional
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- 2018
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28. Tardigradi della Sardegna e di alcune piccole isole circumsarde
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Bertolani, Roberto, Guidi, Alessandra, and Rebecchi, Lorena
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- 1996
29. Effects of synthetic acid rain and organic and inorganic acids on survival and CaCO3 piercing stylets in tardigrades.
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Massa, Edoardo, Rebecchi, Lorena, and Guidetti, Roberto
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ACID rain , *INORGANIC acids , *ORGANIC acids , *TARDIGRADA , *DEAD animals - Abstract
Long‐term environment acidifications due to decrease pH of the rainwaters affect both soils and water bodies. The organisms most likely to be affected by acid rain are the ones that possess vital organs made of calcium carbonate; among them are tardigrades, presenting aragonite piercing stylets in feeding apparatuses. A positive relationship between acidic rainfall and loss of tardigrades diversity has been already shown, but there is lack of knowledge of its lethal and sublethal effects. This study quantifies the effects of the acute exposure of three eutardigrade, Acutuncus antarcticus, Hypsibius exemplaris, and Macrobiotus cf. hufelandi, to synthetic acid rains and to organic and inorganic acids (hydrochloric, acetic, sulfuric, and nitric acids) naturally occurring in the environment. The cumulative proportion of dead animals in respect of exposition time was fitted to cumulative Weibull Distribution using a Bayesian framework. At the end of the experiments, animals were observed to investigate damages to their piercing stylets. Besides, stylets were finely morphologically described with Scanning Electron Microscopy. This study shows that acid rains and the other tested acids negatively affect tardigrades accordingly with pH, time of exposure, and tardigrade species. Freshwater species show a better resistance to acidity than the moss dwelling species, which can better acclimate over the time to low pH. The stylets resulted unaltered in almost all of the alive specimens. The results suggest that the tested tardigrades taxa have the ability to buffer the environmental proton change and the negative effect on their populations could be counteracted. Research Highlights: Tardigrades exhibit differential sensitivity toacids.Aragonite piercing stylets of feeding apparatus exposed to acids.Tardigrades can to moderate/high acidity [ABSTRACT FROM AUTHOR]
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- 2023
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30. The Macrobiotus persimilis-polonicus complex (Eutardigrada, Macrobiotidae), another example of problematic species identification, with the description of four new species
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Bertolani, Roberto, primary, Cesari, Michele, additional, Giovannini, Ilaria, additional, Rebecchi, Lorena, additional, Guidetti, Roberto, additional, Kaczmarek, Łukasz, additional, and Pilato, Giovanni, additional
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- 2022
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31. Phylogeny of the asexual lineage Murrayidae (Macrobiotoidea, Eutardigrada) with the description of
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Guidetti, Roberto, primary, Giovannini, Ilaria, additional, Del Papa, Valeria, additional, Ekrem, Torbjørn, additional, Nelson, Diane R., additional, Rebecchi, Lorena, additional, and Cesari, Michele, additional
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- 2022
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32. Tardigradi dell’Appennino umbro-marchigiano
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Bertolani, Roberto, Guidetti, Roberto, and Rebecchi, Lorena
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- 1994
33. Distribution of Calcium and Chitin in the Tardigrade Feeding Apparatus in Relation to its Function and Morphology
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Guidetti, Roberto, Bonifacio, Alois, Altiero, Tiziana, Bertolani, Roberto, and Rebecchi, Lorena
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- 2015
34. Superoxide Anion Radical Production in the Tardigrade Paramacrobiotus richtersi , the First Electron Paramagnetic Resonance Spin-Trapping Study
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Savic, Aleksandar G., Guidetti, Roberto, Turi, Ana, Pavicevic, Aleksandra, Giovannini, Ilaria, Rebecchi, Lorena, and Mojovic, Milos
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- 2015
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35. Resistance to Extreme Stresses by a Newly Discovered Japanese Tardigrade Species, Macrobiotus kyoukenus (Eutardigrada, Macrobiotidae)
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Cesari, Michele, primary, Giovannini, Ilaria, additional, Altiero, Tiziana, additional, Guidetti, Roberto, additional, Cornette, Richard, additional, Kikawada, Takahiro, additional, and Rebecchi, Lorena, additional
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- 2022
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36. New multivariate image analysis method for detection of differences in chemical and structural composition of chitin structures in tardigrade feeding apparatuses
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Savic, Aleksandar G., Preus, Søren, Rebecchi, Lorena, and Guidetti, Roberto
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- 2016
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37. Life history traits and reproductive mode of the tardigrade Acutuncus antarcticus under laboratory conditions: strategies to colonize the Antarctic environment
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Altiero, Tiziana, Giovannini, Ilaria, Guidetti, Roberto, and Rebecchi, Lorena
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- 2015
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38. Microhabitats: macro-differences. A survey of temperature records in Victoria Land terrestrial and freshwater environments
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Cucini, Claudio, Nardi, Francesco, Magnoni, Letizia, Rebecchi, Lorena, Guidetti, Roberto, Convey, Peter, Carapelli, Antonio, Cucini, Claudio, Nardi, Francesco, Magnoni, Letizia, Rebecchi, Lorena, Guidetti, Roberto, Convey, Peter, and Carapelli, Antonio
- Abstract
The temperature experienced by micro-invertebrates in extreme environments (such as those of Antarctica) is a pivotal parameter regarding these animals' ecology and physiology. However, at present, detailed knowledge of microhabitat physical conditions in Antarctica is limited, as well as being biased towards sub-Antarctic and Maritime Antarctic regions. To better understand the temperature conditions experienced in the microhabitats of Continental Antarctica by the native microfauna, we recorded temperatures year round in ponds and soils in an area of the Victoria Land coast and compared these measurements with air temperature data from the closest automatic weather station. We identified an important difference in temperature dynamics between the air, soil and pond datasets. Ponds were the warmest sites overall, differing by up to 7.5°C in comparison with the air temperature due to their greater thermal capacity, which also drove their patterns of freeze-thaw cycles and mean daily thermal excursion.
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- 2022
39. Molecular phylogenetics, speciation, and long distance dispersal in tardigrade evolution: A case study of the genus Milnesium
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CSIC - Museo Nacional de Ciencias Naturales (MNCN), Ministerio de Ciencia e Innovación (España), Fondazione Cassa di Risparmio di Modena, Università degli studi di Modena e Reggio Emilia, European Commission, Guil, Noemí, Guidetti, Roberto, Cesari, Michele, Marchioro, Trevor, Rebecchi, Lorena, Machordom, Annie, CSIC - Museo Nacional de Ciencias Naturales (MNCN), Ministerio de Ciencia e Innovación (España), Fondazione Cassa di Risparmio di Modena, Università degli studi di Modena e Reggio Emilia, European Commission, Guil, Noemí, Guidetti, Roberto, Cesari, Michele, Marchioro, Trevor, Rebecchi, Lorena, and Machordom, Annie
- Abstract
Microorganisms (sensu lato, i.e., including micrometazoans) are thought to have cosmopolitan geographic distributions due to their theoretically unlimited dispersal capabilities, a consequence of their tiny size, population dynamics, and resistant forms. However, several molecular studies of microorganisms have identified biogeographic patterns indicating cryptic speciation and/or weak species definitions. Using a multi-locus approach with the genus Milnesium (Tardigrada), we aimed to determine the genetic structure of populations worldwide and the effects of long distance dispersal (LDD) on genetic connectivity and relationships across the six continents. Our results on this micrometazoan’s genetic structure and LDD at global and micro-local scales indicate contrasting patterns not easily explained by a unique or simple phenomenon. Overall, we report three key findings: (i) confirmation of long distance dispersal for tardigrades, (ii) populations with globally-shared or endemic micro-local haplotypes, and (iii) a supported genetic structure instead of the homogeneous genetic distribution hypothesized for microorganisms with LDD capabilities. Moreover, incongruences between our morphological and molecular results suggest that species delimitation within the genus Milnesium could be problematic due to homoplasy. Duality found for Milnesium populations at the global scale, namely, a molecular phylogenetic structure mixed with widely distributed haplotypes (but without any apparent biogeographic structure), is similar to patterns observed for some unicellular, prokaryotic and eukaryotic, microorganisms. Factors influencing these patterns are discussed within an evolutionary framework.
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- 2022
40. Antioxidant Response during the Kinetics of Anhydrobiosis in Two Eutardigrade Species
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Giovannini, Ilaria, primary, Corsetto, Paola Antonia, additional, Altiero, Tiziana, additional, Montorfano, Gigliola, additional, Guidetti, Roberto, additional, Rizzo, Angela Maria, additional, and Rebecchi, Lorena, additional
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- 2022
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41. Phylogeny of the asexual lineage Murrayidae (Macrobiotoidea, Eutardigrada) with the description of Paramurrayon gen. nov. and Paramurrayon meieri sp. nov
- Author
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Guidetti, Roberto, Giovannini, Ilaria, Del Papa, Valeria, Ekrem, Torbjørn, Nelson, Diane R., Rebecchi, Lorena, and Cesari, Michele
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species delimitation ,asexual lineages, Dactylobiotus, integrative taxonomy, Macroversum, molecular phylogeny, parthenogenesis, species delimitation, synapomorphy ,Dactylobiotus ,parthenogenesis ,synapomorphy ,asexual lineages ,integrative taxonomy ,Macroversum ,molecular phylogeny - Abstract
The peculiar family Murrayidae, comprising the genera Murrayon, Dactylobiotus and Macroversum, contains relatively rare species living in hydrophilic and freshwater habitats on all continents, and contains two of the six exclusively freshwater tardigrade genera. This family probably represents an example of the evolution and persistence of an asexual lineage that differentiated into several taxa without sexual reproduction. Analyses of nuclear and mitochondrial genes (18S, 28S, ITS2 and cox1), and the increase of five taxa to the phylogenetic analyses of Murrayidae led us to infer that Murrayon is polyphyletic, being composed of two ‘species groups’ that also find morphologi- cal supports: the ‘dianeae group’ characterised by peculiar egg processes (rod-shaped and covered with a cuticular layer), animals with large, evident epicuticular pillars and small claws; and the ‘pullari group’ characterised by conical egg processes, animals with very small epicuticular pillars, and proportionally larger and longer claws. This latter group is a sister group to Dactylobiotus. Murrayon hastatus is the only species within the genus that has an uncertain position with eggs of the ‘dianeae group’ and animals of the ‘pullari group’. We propose the erection of Paramurrayon gen. nov. (for the ‘dianeae group’ of species), the emendation of Murrayon, and new taxonomic keys for both genera. Possible scenarios of the evolution of taxa within Murrayidae are hypothesised based on synapomorphic characters. Paramurrayon meieri sp. nov. from Norway is described with an integrative approach. Photographs of type material of Murrayon stellatus, Murrayon nocentiniae, Murrayon ovoglabellus and Macroversum mirum are shown for the first time, together with descriptions of new characters. Murrayon hibernicus is considered as nomen dubium and Murrayon hyperoncus is transferred to Macrobiotus pending further analyses. Phylogeny of the asexual lineage Murrayidae (Macrobiotoidea, Eutardigrada) with the description of Paramurrayon gen. nov. and Paramurrayon meieri sp. nov.
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- 2022
42. What can we learn from the toughest animals of the Earth? Water bears (tardigrades) as multicellular model organisms in order to perform scientific preparations for lunar exploration
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Guidetti, Roberto, Rizzo, Angela Maria, Altiero, Tiziana, and Rebecchi, Lorena
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- 2012
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43. A pest alien invasion in progress: potential pathways of origin of the brown marmorated stink bug Halyomorpha halys populations in Italy
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Cesari, Michele, Maistrello, Lara, Ganzerli, Francesco, Dioli, Paride, Rebecchi, Lorena, and Guidetti, Roberto
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- 2015
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44. Microhabitats, macro-differences: a survey of temperature records in Victoria Land terrestrial and freshwater environments
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Cucini, Claudio, primary, Nardi, Francesco, additional, Magnoni, Letizia, additional, Rebecchi, Lorena, additional, Guidetti, Roberto, additional, Convey, Peter, additional, and Carapelli, Antonio, additional
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- 2022
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45. Contributors to Volume II
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Álvarez, Fernando, primary, Bain, Bonnie A., additional, Bartsch, llse, additional, Behan-Pelletier, Valerie, additional, Bolek, Matthew G., additional, Brinkhurst, Ralph O., additional, Brusa, Francisco, additional, Campbell, Richard D., additional, Cho, Joo-lae, additional, Cook, David R., additional, Cummings, Kevin S., additional, Damborenea, Cristina, additional, Edward DeWalt, R., additional, Esteban, Genoveva F., additional, Fetzner, James W., additional, Finlay, Bland J., additional, Gelder, Stuart R., additional, Govedich, Fredric R., additional, Graf, Daniel L., additional, Guidetti, Roberto, additional, Hanelt, Ben, additional, Hann, Brenda J., additional, Hansknecht, Tom, additional, Horne, David J., additional, Lewis, Julian J., additional, Lovell, Lawrence L., additional, Kånneby, Tobias, additional, Manconi, Renata, additional, Moser, William E., additional, Nelson, Diane R., additional, Noreña, Carolina, additional, Norton, Roy A., additional, Oceguera-Figueroa, Alejandro, additional, Phillips, Anna J., additional, Poinar, George O., additional, Price, Wayne, additional, Pronzato, Roberto, additional, Rebecchi, Lorena, additional, Reid, Janet W., additional, Resh, Vincent H., additional, Richardson, Dennis J., additional, Rogers, D. Christopher, additional, Sarma, S.S.S., additional, Schmidt-Rhaesa, Andreas, additional, Segers, Hendrik, additional, Smith, Alison J., additional, Smith, Ian M., additional, Snell, T.W., additional, Strand, Malin, additional, Sundberg, Per, additional, Taylor, Christopher A., additional, Thoma, Roger F., additional, Thorp, James H., additional, Van Syoc, Robert J., additional, Cristina de Villalobos, L., additional, Wallace, Robert L., additional, Walsh, Elizabeth J., additional, Warren, Alan, additional, Wood, Timothy S., additional, and Zanca, Fernanda, additional
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- 2016
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46. Phylum Tardigrada
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Nelson, Diane R., primary, Guidetti, Roberto, additional, and Rebecchi, Lorena, additional
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- 2016
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47. MicroRNAs and phylogenomics resolve the relationships of Tardigrada and suggest that velvet worms are the sister group of Arthropoda
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Campbell, Lahcen I., Rota-Stabelli, Omar, Edgecombe, Gregory D., Marchioro, Trevor, Longhorn, Stuart J., Telford, Maximilian J., Philippe, Hervé, Rebecchi, Lorena, Peterson, Kevin J., and Pisani, Davide
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- 2011
48. Thermotolerance and "hsp70" heat shock response in the cold-stenothermal chironomid Pseudodiamesa branickii (NE Italy)
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Bernabò, Paola, Rebecchi, Lorena, Jousson, Olivier, Martínez-Guitarte, Jose Luis, and Lencioni, Valeria
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- 2011
49. Macrobiotus azzunae Marnissi & Cesari & Rebecchi & Bertolani 2021, sp. nov
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Marnissi, Jamila Ben, Cesari, Michele, Rebecchi, Lorena, and Bertolani, Roberto
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Macrobiotus azzunae ,Eutardigrada ,Parachela ,Macrobiotidae ,Macrobiotus ,Tardigrada ,Animalia ,Biodiversity ,Taxonomy - Abstract
Macrobiotus azzunae sp. nov. urn:lsid:zoobank.org:act: 933CCC06-F69D-49E2-AF4F-0C042D8F5C99 Figs 1–4, 5A, C, 7 Etymology The new species is dedicated in honor of Atf Azzouna, professor in the Faculty of Mathematical, Physical and Natural Sciences of Tunis and supervisor of the PhD thesis of Jamila Ben Marnissi. Type material Holotype TUNISIA • spec. of unidentified sex; North-West Tunisia, Kroumiri Mountains, Ain Soltan forest, Jendouba; 36º31′21.788″ N, 8º19′57.741″ E; 893 m a.s.l.; Apr. 2017; Marnissi leg.; moss on trunk of Quercus canariensis; UNIMORE, slide code C4218–S32. Paratypes TUNISIA • 17 specs, sex unidentified; same collection data as for holotype; UNIMORE, slide codes C4218–S2 to C4218–S7, C4218–S9, C4218–S17, C4218–S30, C4218–S31, C4218–S33 to C4218– S35 • 3 eggs; same collection data as for holotype; UNIMORE, slide codes C4218–S10, C4218–S11, C4218–S25. Type depositories The holotype (slide: C 4218– S 32), 17 paratypes (slides C 4218– S 2 to C 4218– S 7, C 4218– S 17, C 4128– S 30, C 4218– S 31, C 4218– S 33 to C 4218- S 35), 3 eggs (slides: C 4218– S 10/11/25) and two vouchers (slides SP 04 and SP 07, corresponding to specimens C 4218 V 4 and C 4218 V 7, respectively) mounted in Faure-Berlese fluid, are deposited in the Bertolani collection at the Department of Life Science, UNIMORE, Modena, Italy. Type locality NW Tunisia, Kroumrie mountains, Ain Soltan forest, Jendouba, 36º31′21.788″ N, 8º19′57.741″ E. Altitude 893 m a.s.l. Description Adult specimens Body white, transparent after mounting in Faure-Berlese, from 162.2 to 410.3 µm in length (Fig. 2A, Table 3; structures measured only in the animals more than 200 µm in length). Eye spots present, even after mounting. Cuticle smooth but with small round or oval pores, 1–1.5 µm in diameter (Fig. 2B), better visible after fixation in Carnoy and orcein staining (Fig. 3C), scattered randomly on the entire cuticle, including the dorsal surface of all legs. With SEM, pores look oval or in the shape of a seed (Fig. 3A, D) with the largest diameter of 0.7–0.8 µm. Weak cuticular granulation also present on the lateral surface of all legs and specially on legs IV (Fig. 2B, arrow). Only with SEM is it possible to define the shape of the granulation on the legs, which looks as a regular disposition of star-shaped protuberances (about 0.3 µm; Fig. 3F). Six buccal sensory lobes around the mouth, well recognizable with SEM. Mouth antero-ventral; buccal-pharyngeal apparatus of the Macrobiotus type (sensu Pilato & Binda 2010), with ventral lamina and ten small peribuccal lamellae (in the holotype, after mounting, separated from the mouth). Buccal armature, corresponding to oral cavity armature, OCA, according to Michalczyk & Kaczmarek (2003), without an anterior band of teeth visible, corresponding to the first band of teeth according to Michalczyk & Kaczmarek (2003), and to the anterior band of the buccal ring according to Guidetti et al. (2012); posterior band of teeth poorly visible, corresponding to second band of teeth, according to Michalczyk & Kaczmarek (2003), followed by three dorsal and three ventral crests, corresponding to third band of teeth according to Michalczyk & Kaczmarek (2003); the dorsal crests (Fig. 2D) are distinct transverse ridges, whereas the ventral crests (Fig. 2E) appear as two separate lateral transverse ridges and a roundish median tooth. The posterior band of teeth and the transverse ridges are part of the buccal tube, according to Guidetti et al. (2012). Buccal tube narrow; pharyngeal bulb spherical with triangular apophyses, two rod-shaped macroplacoids, relatively short, the first longer than the second and evidently but not deeply narrowed at its middle (Fig. 2C), the second with a not particularly evident subterminal constriction. Microplacoid present. Slender claws of the hufelandi type (sensu Pilato & Binda 2010); the external claw longer than the internal one and the posterior longer than the anterior. Primary branches of each claw with distinct accessory points (Fig. 2F), a common tract of medium length (about a third of the total claw length) and an evident stalk connecting the claw to the lunule. Lunules under all claws, smooth, larger on the hind legs (Figs 2G, 3E). Cuticular bars under claws absent. The population is dioecious (gonochoristic). Males were recognized using orcein staining, which revealed that the testis is filled with spermatozoa with a coiled head (Fig. 3G) and spermatids. No morphological secondary sexual dimorphism, such as gibbosities on legs IV in males, was identified. Eggs Eggs are laid freely, and are white, spherical or slightly oval. One egg containing a fully developed embryo showed the shape of the buccal-pharyngeal apparatus (Fig. 4A). Processes of the eggshell are in the shape of inverted goblets (Fig. 4B) with conical trunks and well-defined distal discs as large as the process bases (for measurements see Table 4). Distal discs concave, with a median small protuberance and, using PhC, with border often smooth, or sometimes slightly jagged, or slightly ragged (Fig. 4C), but never clearly jagged, serrated or dentate. Surface among processes of the hufelandi type (sensu Kaczmarek & Michalczyk 2017a), i.e., covered by a very thin grid (Fig. 4D). Meshes around the process bases slightly larger and with slightly thicker wires compared with interbasal meshes. Mesh diameter around 0.5 µm. Comparisons Macrobiotus azzunae sp. nov. has eggs with processes as inverted goblets and a reticulate eggshell between the processes. Consequently, a comparison must be done with the Macrobiotus species listed by Kaczmarek & Michalczyk (2017a) with hufelandi type eggshells, excluding the species with processes that are not like inverted goblets, and adding the species with hufelandi type chorion eggs described after that publication. The species with hufelandi type chorion eggs that do not have processes as inverted goblets are Macrobiotus acadianus (Meyer & Domingue, 2011), M. dariae Pilato & Bertolani, 2004, M. lissostomus Durante Pasa & Maucci, 1979, M. santoroi Pilato & D’Urso, 1976, and M. scoticus Stec, Morek, Gąsiorek, Blagden & Michalczyk, 2017. Moreover, M. azzunae sp. nov. has egg processes with distal discs with a smooth or slightly jagged border, therefore it differs from all the species that have clearly indented, serrated or clearly jagged distal discs, such as: Macrobiotus canaricus Stec, Krzywański & Michalczyk, 2018, M. crustulus Stec, Dudziak & Michalczyk, 2020, M. hannae Nowak & Stec, 2018 (whose egg surface is more cribriform than reticulate), M. hibiscus de Barros, 1942, M. horningi Kaczmarek & Michalczyk, 2017b (which also has very high processes), M. hufelandi C.A.S. Schultze, 1834, M. humilis Binda & Pilato, 2001, M. iharosi Pilato, Binda & Catanzaro 1991, M. joannae Pilato & Binda, 1983, M. julianae (Meyer, 2012), M. kamilae Coughlan & Stec, 2019, M. modestus Pilato & Lisi, 2009, M. noonragi s Coughlan & Stec, 2019, M. papei Stec, Kristensen & Michalczyk, 2018 (with particularly long filaments starting from the distal disc), M. paulinae Stec, Smolak, Kaczmarek & Michalczyk, 2015, M. polypiformis Roszkowska, Ostrowska, Stec, Janko & Kaczmarek, 2017 (even with cog-teeth extended to form a long, thin, hair-like and flexible filament), M. punctillus Pilato, Binda & Azzaro, 1990, M. sapiens Binda & Pilato, 1984, M. sottilei Pilato, Kiosya, Lisi & Sabella, 2012. For the shape of the egg Macrobiotus azzunae sp. nov. differs from M. rawsoni Horning, Schuster & Grigarick, 1978 because this species has only one strip of meshes around each egg process (see Kaczmarek & Michalczyk 2017b); it differs from M. serratus Bertolani, Guidi & Rebecchi, 1996 because in this species the egg surface is porous more than reticulated, with pores small and spaced from each other, and its egg processes have a large, often square, distal disc; it differs from M. seychellensis Biserov, 1994 because the distal disc of the egg processes of this species, even though not dentate, has long and very developed lobes. The remaining nine species of the hufelandi group should be compared singularly. Macrobiotus almadai Fontoura, Pilato & Lisi, 2008 Macrobiotus azzunae sp. nov. differs from M. almadai in having a posterior band of teeth in the buccal cavity visible with LM (not visible in M. almadai), and distal disc with a jagged margin instead of very small teeth as in M. almadai. Macrobiotus canaricus Stec, Krzywański & Michalczyk, 2018 With LM the margin of the distal disc of M. azzunae sp. nov., never dentate in this species, looks similar to that of M. canaricus, but the SEM images of the eggs of the latter species evidence the presence of an almost dentate disc. Moreover, the peribasal meshes of the eggshell are larger than interbasal ones in the new species while they do not differ from the interbasal ones in M. canaricus; regarding the animals there are differences in the buccal armature: in M. azzunae sp. nov. the posterior band of teeth is visible with LM (even though poorly) and the three dorsal crests are distinct transverse ridges, while in M. canaricus the posterior band of teeth is visible only with SEM and with LM the dorsal teeth form a transversal ridge weakly divided into three teeth. Macrobiotus madegassus Maucci, 1993 The new species differs from M. madegassus by the presence of the eye spots (absent in M. madegassus), pores on the cuticle (absent in M. madegassus), presence in the buccal armature of posterior band of teeth, even though weak (fully absent in M. madegassus), buccal tube much larger (pt of the holotypes 15.9 vs 7), insertion of the stylet supports on the buccal tube much more posterior (pt of the holotypes 76.1 vs 68), first and second macroplacoid longer (pt of the holotypes 25.5 and 18.1 vs 21.3 and 12.0), lunules on the hind legs without kerning (crenate in M. madegassus), eggshell processes with distal disc as large as the base (similar range 3.2–5.2 for both measurements) with respect to that of M. madegassus (disc vs base: 4.3–5.4 vs 2.3–2.6). Macrobiotus martini Bartels , Pilato, Lisi & Nelson, 2009 The cuticular pores in M. azzunae sp. nov. are much smaller than those of M. martini; the distal disc of the egg processes in M. azzunae sp. nov. has a diameter similar to that of the process base, while in M. martini the distal disc is much narrower than the base. Macrobiotus nebrodensis Pilato, Sabella, D’Urso & Lisi, 2017 Macrobiotus azzunae sp. nov. differs from M. nebrodensis by the absence of the cuticular bar near the lunules on the first three pairs of legs (a faint bar is present in M. nebrodensis). The egg processes of M. azzuane sp. nov. are in higher number on the circumference (29–33) with respect to those of M. nebrodensis (18). In the latter species there are some egg processes very high (up to 20.6 µm), while in the new species process height and shape are more uniform. The difference in the eggshell between meshes around the process base and the others is much less evident in M. azzunae sp. nov. than in M. nebrodensis. Macrobiotus personatus Biserov, 1990 The new species differs from M. personatus by the posterior band of the buccal armature less evident, the presence of a clear constriction in the first macroplacoid (Fig. 5A), in the paratype of M. personatus examined by us barely identifiable (Fig. 6A) and, according to Biserov (1990) usually absent in the type material of that species. The pores on the cuticle of M. azzunae sp. nov. are small, approximately 1 µm in diameter, while in M. personatus they are strongly elliptic and about 3 µm in length (Fig. 6B). Lunules on leg IV are always smooth in M. azzunae sp. nov., sometimes indented in M personatus. With respect to the eggs of M. personatus (Fig. 6C–D), the egg processes of M. azzunae sp. nov. (Figs 4C–D, 5C) are clearly shorter, 5.4 ± 0.6 vs 9.5 ± 0.5 (range 4.2–6.4 vs 9–10.5) and with a narrower base and distal disc (both 3.2–5.2 vs 7–10.5 and 7–9 respectively). Males are present in the new species, while in M. personatus only females were found (Biserov 1990), suggesting parthenogenesis in that species. Macrobiotus sandrae Bertolani & Rebecchi, 1993 The new species differs from M. sandrae for the eggshell shape, with thinner wires of the reticulum and meshes around the processes larger than the inter-process meshes in M. azzunae sp. nov. (Fig. 5C), all meshes similar in size in M. sandrae (Fig. 5D). Figure 5C–D also show a difference in the process base diameter, narrower in M. azzunae sp. nov. With regard to the animals, M. azzunae sp. nov. differs from M. sandrae by a constriction of the first macroplacoid much more pronounced (Fig. 5A; it is hardly visible in M. sandrae; Fig. 5B). Moreover, in animals of similar size the posterior band of the buccal armature is just less evident in the new species, and lunules on the hind legs are without hint of teeth (but teeth, present in the holotype of M. sandrae, are often difficult to identify in other specimens of that species). Macrobiotus terminalis Bertolani & Rebecchi, 1993 Macrobiotus azzunae sp. nov. differs from M. terminalis for the absence of granulation on the cuticle (noted only in the redescription of M. terminalis; see Cesari et al. 2011), for the absence of teeth on the lunules, especially evident on the hind legs of M. terminalis, and for the presence of males, absent in M. terminalis (see redescription by Cesari et al. 2011). Macrobiotus vladimiri Bertolani, Biserov, Rebecchi & Cesari, 2011 With respect to M. vladimiri, animals of M. azzunae sp. nov. reach a shorter length (up to 410.3 µm vs 515.1 µm), in M. azzunae sp. nov. the posterior band of teeth of the buccal armature is less evident and the lunules on the hind legs are not indented. In M. azzunae sp. nov. the egg diameter without processes (64.7–80.6 µm) is less than that of the eggs of M. vladimiri (89.9–92.0 µm); the processes are shorter (4.2–6.4 µm in the new species vs 6.5–8 µm in M. vladimiri). In the new species the base process diameter is narrower (3.2–5.2 µm) than in M. vladimiri (5.1–7.3 µm), the distal disc is weakly or not jagged (clearly jagged in M. terminalis). In M. azzunae sp. nov. males are present, while they are absent in M. vladimiri. Genetic distances The ranges of uncorrected genetic p-distances between M. azzunae sp. nov. and the other species of the M. hufelandi group (Supp. file 7, Supp. file 8, Supp. file 9, Supp. file 10), are as follows: 18S 0.1–5.6%, with the most similar being M. sandrae from Germany (present paper) 28S 0.1%, with the only available M. vladimiri from Spain (FJ435751 –5) ITS-2 7.7–32.2%, with the most similar being Macrobiotus vladimiri (MN888347) from Finland COI 6.3–25.6%, with the most similar being Macrobiotus sandrae (HQ876574, HQ876577, HQ876578, HQ876579, HQ876581) from Germany The COI dataset is the most complete and informative for species delimitation investigation. Both phylogenetic reconstructions on the COI dataset resulted in the same topology, and thus the ML tree was utilized for the PTP analysis (Fig. 7, left), which shows 14 putative species clusters: M. crustulus, M.hannae, M. cf. recens, M.canaricus, M.hufelandi, M. cf. hufelandi sp.1, M. terminalis, M. cf. terminalis, M. wandae, M. macrocalix, M. cf. macrocalix, M. vladimiri, M. sandrae and M. azzunae sp. nov. This subdivision is further validated by both the ABGD and the haplotype network analysis (Fig. 7, centre and right). Present molecular data therefore confirms the validity of the erection of M. azzunae sp. nov., Published as part of Marnissi, Jamila Ben, Cesari, Michele, Rebecchi, Lorena & Bertolani, Roberto, 2021, Integrative description of a new Tunisian tardigrade species, Macrobiotus azzunae sp. nov. (Eutardigrada, Macrobiotidae, hufelandi group), pp. 122-146 in European Journal of Taxonomy 758 (1) on pages 126-138, DOI: 10.5852/ejt.2021.758.1429, http://zenodo.org/record/5088105, {"references":["Stec D., Krzywanski L. & Michalczyk L. 2018 c. Integrative description of Macrobiotus canaricus sp. nov. with notes on M. recens (Eutardigrada: Macrobiotidae). European Journal of Taxonomy 452: 1 - 36. https: // doi. org / 10.5852 / ejt. 2018.452","Stec D., Dudziak M. & Michalczyk L. 2020 a. Integrative descriptions of two new Macrobiotidae species (Tardigrada: Eutardigrada: Macrobiotoidea) from French Guiana and Malaysian Borneo. Zoological Studies 59 (23): 1 - 25. https: // doi. org / 10.6620 / ZS. 2020.59 - 23","Stec D., Tumanov D. V. & Kristensen R. M. 2020 b. Integrative taxonomy identifies two new tardigrade species (Eutardigrada: Macrobiotidae) from Greenland. European Journal of Taxonomy 614: 1 - 40. https: // doi. org / 10.5852 / ejt. 2020.614","Nowak B. & Stec D. 2018 An integrative description of Macrobiotus hannae sp. nov. (Tardigrada: Eutardigrada: Macrobiotidae: hufelandi group) from Poland. Turkish Journal of Zoology 42: 269 - 286. https: // doi. org / 10.3906 / zoo- 1712 - 31","Jorgensen A., Faurby S., Hansen J. G., Mobjerg N. & Kristensen R. M. 2010. Molecular phylogeny of Arthrotardigrada (Tardigrada). Molecular Phylogenetics and Evolution 54: 1006 - 1015. https: // doi. org / 10.1016 / j. ympev. 2009.10.006","Bertolani R., Rebecchi L., Giovannini I. & Cesari M. 2011 b. DNA barcoding and integrative taxonomy of Macrobiotus hufelandi C. A. S. Schultze 1834, the first tardigrade species to be described, and some related species. Zootaxa 2997: 19 - 36. https: // doi. org / 10.11646 / zootaxa. 2997.1.2","Bertolani R., Guidetti R., Marchioro T., Altiero T., Rebecchi L. & Cesari M. 2014. Phylogeny of Eutardigrada: new molecular data and their morphological support lead to the identification of new evolutionary lineages. Molecular Phylogenetics and Evolution 76: 110 - 126. https: // doi. org / 10.1016 / j. ympev. 2014.03.006","Coughlan K. & Stec D. 2019. Two new species of the Macrobiotus hufelandi complex (Tardigrada: Eutardigrada: Macrobiotidae) from Australia and India, with notes on their phylogenetic position. European Journal of Taxonomy 573: 1 - 38. https: // doi. org / 10.5852 / ejt. 2019.573","Guidetti R., Peluffo J. R., Rocha A. M., Cesari M. & Moly de Peluffo M. C. 2013. The morphological and molecular analyses of a new South American urban tardigrade offer new insights on the biological meaning of the Macrobiotus hufelandi group of species (Tardigrada: Macrobiotidae). Journal of Natural History 47: 2409 - 2426. https: // doi. org / 10.1080 / 00222933.2013.800610","Vicente F., Cesari M., Serrano A. & Bertolani R. 2013. The impact of fire on terrestrial tardigrade biodiversity: a first case-study from Portugal. Journal of Limnology 72 (s 1): 152 - 159. https: // doi. org / 10.4081 / jlimnol. 2013. s 1. e 19","Stec D., Kristensen R. M. & Michalczyk L. 2018 b. Integrative taxonomy identifies Macrobiotus papei, a new tardigrade species of the Macrobiotus hufelandi complex (Eutardigrada: Macrobiotidae) from the Udzungwa Mountains National Park (Tanzania). Zootaxa 4446 (2): 273 - 291. https: // doi. org / 10.11646 / zootaxa. 4446.2.7","Stec D., Smolak R., Kaczmarek L. & Michalczyk L. 2015. An integrative description of Macrobiotus paulinae sp. nov. (Tardigrada: Eutardigrada: Macrobiotidae: hufelandi group) from Kenya. Zootaxa 4052 (2): 501 - 526. https: // doi. org / 10.11646 / zootaxa. 4052.5.1","Welnicz W., Grohme M. A., Kaczmarek L., Schill R. O. & Frohme L. 2011. ITS- 2 and 18 S rRNA data from Macrobiotus polonicus and Milnesium tardigradum (Eutardigrada, Tardigrada). Journal of Systematics and Evolutionary Research 49 (s 1): 34 - 39. https: // doi. org / 10.1111 / j. 1439 - 0469.2010.00595. x","Stec D., Vecchi M., Calhim S. & Michalczyk L. 2021. New multilocus phylogeny reorganises the family Macrobiotidae (Eutardigrada) and unveils complex morphological evolution of the Macrobiotus hufelandi group. Molecular Phylogenetics and Evolution 160. https: // doi. org / 10.1016 / j. ympev. 2020.106987.","Roszkowska M., Ostrowska M., Stec D., Janko K. & Kaczmarek L. 2017. Macrobiotus polypiformis sp. nov., a new tardigrade (Macrobiotidae; hufelandi group) from the Ecuadorian Pacific coast, with remarks on the claw abnormalities in eutardigrades. European Journal of Taxonomy 327: 1 - 19. https: // doi. org / 10.5852 / ejt. 2017.327","Schill R. O., Forster F., Dandekar T. & Wolf M. 2010. Using compensatory base change analysis of internal transcribed spacer 2 secondary structures to identify three new species in Paramacrobiotus (Tardigrada). Organisms Diversity and Evolution 10: 287 - 296. https: // doi. org / 10.1007 / s 13127 - 010 - 0025 - z","Stec D., Morek W., Gasiorek P., Blagden B. & Michalczyk L. 2017. Description of Macrobiotus scoticus sp. nov. (Tardigrada: Macrobiotidae: hufelandi Group) from Scotland by means of integrative taxonomy. Annales Zoologici 67 (2): 181 - 197. https: // doi. org / 10.3161 / 00034541 ANZ 2017.67.2.001","Stec D., Arakawa K. & Michalczyk L. 2018 a. An integrative description of Macrobiotus shonaicus sp. nov. (Tardigrada: Macrobiotidae) from Japan with notes on its phylogenetic position within the hufelandi group. PLoS ONE 13 (2): e 0192210. https: // doi. org / 10.1371 / journal. pone. 0192210","Sugiura K., Arakawa K. & Matsumoto M. 2020. Distribution of Macrobiotus shonaicus Stec, Arakawa & Michalczyk, 2018 (Tardigrada: Eutardigrada: Macrobiotidae) in Japan. 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Some tardigrades from Nepal (Asia) with integrative description of Macrobiotus wandae sp. nov. (Macrobiotidae: hufelandi group). Annales Zoologici 70 (1): 121 - 142. https: // doi. org / 10.3161 / 00034541 ANZ 2020.70.1.007","Pilato G. & Binda M. G. 2010. Definition of families, subfamilies, genera and subgenera of the Eutardigrada, and keys to their identification. Zootaxa 2404: 1 - 54. https: // doi. org / 10.11646 / zootaxa. 2404.1.1","Michalczyk L. & Kaczmarek L. 2003. A description of the new tardigrade Macrobiotus reinhardti (Eutardigrada, Macrobiotidae, harmsworthi group) with some remarks on the oral cavity armature within the genus Macrobiotus Schultze. Zootaxa 331: 1 - 24. https: // doi. org / 10.11646 / zootaxa. 331.1.1","Guidetti R., Altiero T., Marchioro T., Sarzi Amade L., Avdonina A. M., Bertolani R. & Rebecchi L. 2012. Form and function of the feeding apparatus in Eutardigrada (Tardigrada). Zoomorphology 131: 127 - 148. https: // doi. org / 10.1007 / s 00435 - 012 - 0149 - 0","Kaczmarek L. & Michalczyk L. 2017 a. The Macrobiotus hufelandi (Tardigrada) group revisited. Zootaxa 4363: 101 - 123. https: // doi. org / 10.11646 / zootaxa. 4363.1.4","Gasiorek P., Stec D., Morek W., Marnissi J. & Michalczyk L. 2017. The tardigrade fauna of Tunisia, with an integrative description of Bryodelphax maculatus sp. nov. (Heterotardigrada: Echiniscidae). African Zoology 52 (2): 77 - 89. https: // doi. org / 10.1080 / 15627020.2017.1297688","Kaczmarek L. & Michalczyk L. 2017 b. A description of Macrobiotus horningi sp. nov. and redescriptions of M. maculatus comb. nov. Iharos, 1973 and M. rawsoni Horning et al., 1978 (Tardigrada: Eutardigrada: Macrobiotidae: hufelandi group). Zootaxa 4363: 79 - 100. https: // doi. org / 10.11646 / zootaxa. 4363.1.3","Schultze C. A. S. 1834. Macrobiotus Hufelandii animal e crustaceorum classe novum, reviviscendi post diuturnam asphyxia et ariditaten potens, etc. C. Curths, Berlin.","Pilato G., Binda M. G. & Catanzaro R. 1991. Remarks on some tardigrades of the African fauna with the description of three new species of Macrobiotus Schultze 1834. Tropical Zoology 4: 167 - 178. https: // doi. org / 10.1080 / 03946975.1991.10539487","Pilato G. & Lisi O. 2009. Tardigrades of the Seychelles Islands, with the description of three new species. Zootaxa 2124: 1 - 20. https: // doi. org / 10.5281 / zenodo. 188178","Pilato G., Binda M. G. & Azzaro M. 1990. Tardigradi di Terra del Fuoco e Magallanes. III. Macrobiotus punctillus, nuova specie di Macrobiotidae del gruppo hufelandi. Animalia 17: 123 - 129.","Pilato G., Kiosya Ye., Lisi O. & Sabella G. 2012. New records of Eutardigrada from Belarus with the description of three new species. Zootaxa 3179: 39 - 60. https: // doi. org / 10.11646 / zootaxa. 3179.1.2 Pilato G., Sabella G., D'Urso V. & Lisi O. 2017. Macrobiotus nebrodensis and Adropion vexatum, two new species of Eutardigrada (Tardigrada, Parachela) from Sicily. Zootaxa 4362 (2): 267 - 279. https: // doi. org / 10.11646 / zootaxa. 4362.2.6","Biserov V. I. 1990. On the revision of the Macrobiotus genus. The subgenus Macrobiotus s. str. is a new taxonomic status of the hufelandi group (Tardigrada, Macrobiotidae). Communication 2. Zoologicheskij Zhurnal 69: 38 - 50. [In Russian.]"]}
- Published
- 2021
- Full Text
- View/download PDF
50. Mopsechiniscus franciscae, a new species of a rare genus of Tardigrada from continental Antarctica
- Author
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Guidetti, Roberto, Rebecchi, Lorena, Cesari, Michele, and McInnes, Sandra J.
- Published
- 2014
- Full Text
- View/download PDF
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