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Auteur Thomas Abeli |
Documents disponibles écrits par cet auteur
Affiner la rechercheBiological flora of Central Europe : Marsilea quadrifolia L. / Anna Corli in Perspectives in Plant Ecology, Evolution and Systematics, vol. 53 (Année 2021)
Titre : Biological flora of Central Europe : Marsilea quadrifolia L. Type de document : Livre Auteurs : Anna Corli, Auteur ; Graziano Rossi, Auteur ; Simone Orsenigo, Auteur ; Thomas Abeli, Auteur Année de publication : 2021 Article en page(s) : 125641 Langues : Anglais Catégories : [Espèces (in biblio)] Marsilea quadrifolia
[ZG] Europe centrale
[Thèmes] Conservation
[Thèmes] Ethnobotanique
[Thèmes] Fougères
[Thèmes] Plante à forte valeur patrimonialeMots-clés : gestion de l'eau Résumé : "M. quadrifolia has a widespread distribution, occurring throughout central-southern Europe and extending from Eurasia to tropical and temperate areas of eastern Asia and North America, where it is considered a non-native species. Despite its wide distribution, in its home range the species is threatened with extinction and has already been locally extirpated in several European countries. As a result, it is listed as “Vulnerable” in the European Union Red List due to its scattered distribution and declining population. Habitat loss and degradation, excessive water eutrophication, and agricultural practices such as the use of herbicides, mechanization and simplified rotation are the main threats to the species.
As it is listed in Appendix I of the Bern Convention and in Annexes II and IV of Directive 92/43/EEC as a strictly protected species, in situ and ex situ conservation activities have been conducted in most European countries. Reintroduction, cultivation in botanical gardens and in vitro propagation are the most commonly applied conservation methods." (source : auteurs)Type de publication : périodique Référence biblio : Corli A., Rossi G., Orsenigo S., Abeli T., 2021 - Biological flora of Central Europe : Marsilea quadrifolia L. Perspectives in Plant Ecology, Evolution and Systematics, 53 : 125641. ID PMB : 70171 DOI : 10.1016/j.ppees.2021.125641 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=70171
in Perspectives in Plant Ecology, Evolution and Systematics > vol. 53 (Année 2021) . - 125641[article]Exemplaires
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Titre : Comparative germination responses to water potential across different populations of Aegilops geniculata and cultivar varieties of Triticum durum and Triticum aestivum Type de document : Livre Auteurs : Simone Orsenigo, Auteur ; Filippo Guzzon, Auteur ; Thomas Abeli, Auteur ; Graziano Rossi, Auteur ; I. Vagge, Auteur ; Alma Balestrazzi, Auteur ; Andrea Mondoni, Auteur ; Jonas V. Müller, Auteur Année de publication : 2017 Article en page(s) : pp. 165-171 Langues : Anglais Résumé : "Crop Wild Relatives are often used to improve crop quality and yields because they contain genetically important traits that can contribute to stress resistance and adaptation. Seed germination of different populations of Aegilops geniculata Roth collected along a latitudinal gradient was studied under different drought stress in order to find populations suitable for improving drought tolerance in wheat. Different accessions of Aegilops neglecta Req. ex Bertol., Triticum aestivum L. and T. durum Desf. were used as comparison. Under full hydration, germination was high in all populations, but increasing drought stress led to reduced and delayed germination. Significant differences in final germination and mean time to germinate were detected among populations. Wheat, durum wheat and the southern population of Ae. geniculata were not significantly affected by drought stress, germinating similarly under all treatments. However, seed germination of the northern populations of Ae. geniculata was significantly reduced under high water stress treatment. Differences between populations of the same species could not be explained by annual rainfall across populations' distributions, but by rainfall during seed development and maturation. Differences in the germination responses to drought found here highlight the importance of source populations as criteria for genotype selection for pre-breeders" Type de publication : périodique Référence biblio : Orsenigo S., Guzzon F., Abeli T., Rossi G., Vagge I., Balestrazzi A., Mondoni A., Müller J., 2017 - Comparative germination responses to water potential across different populations of Aegilops geniculata and cultivar varieties of Triticum durum and Triticum aestivum. Plant biology, 19 (2) : 165-171. DOI : 10.1111/plb.12528 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=66296
in Plant biology > vol. 19, n°2 (Mars 2017) . - pp. 165-171[article]Exemplaires
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Titre : Ex situ collections and their potential for the restoration of extinct plants Type de document : Livre Auteurs : Thomas Abeli, Auteur ; Sarah Dalrymple, Auteur ; Sandrine Godefroid, Auteur ; Andrea Mondoni, Auteur ; Jonas V. Müller, Auteur ; Graziano Rossi, Auteur ; Simone Orsenigo, Auteur Année de publication : 2020 Article en page(s) : pp. 303-313 Langues : Anglais Catégories : [Thèmes] Banque de graines
[Thèmes] Conservation
[Thèmes] Jardin botaniqueMots-clés : herbier introduction d'espèces réintroduction d'espèce collection de plantes conservation ex situ rétablissement de la diversité génétique des plantes conservation in situ Résumé : "The alarming current and predicted species extinction rates have galvanized conservationists in their efforts to avoid future biodiversity losses, but for species extinct in the wild, few options exist. We posed the questions, can t hese species be restored, and, if so, what role can ex situ plant collections (i.e., botanic gardens, germplasm banks, herbaria) play in the recovery of plant genetic diversity? We reviewed the relevant literature to assess the feasibility of recovering lost plant genetic diversity with using ex situ material and the probability of survival of subsequent translocations. Thirteen attempts to recover species extinct in the wild were found, most of which used material preserved in botanic gardens and seed banks
One case of a locally extirpated population was recovered from herbarium material. Eight (60%) of these cases were successful or partially successful translocations of the focal species or population; the other 5 failed or it was too early to determine the outcome. Limiting factors of the use of ex situ source material for the restoration of plant genetic diversity in the wild include the scarcity of source material, low viability and reduced longevity of the material, low genetic variation, lack of evolution (especially for material stored in germplasm banks and herbaria), and socioeconomic factors. However, modern collecting practices present opportunities for plant conservation, such as improved collecting protocols and improved cultivation and storage conditions. Our findings suggest that all types of ex situ collections may contribute effectively to plant species conservation if their use is informed by a thorough understanding of the aforementioned problems. We conclude that the recovery of plant species currently classified as extinct in the wild is not 100% successful, and the possibility of successful reintroduction should not be used to justify insufficient in situ conservation." (source : auteurs)Type de publication : périodique Référence biblio : Abeli T., Dalrymple S., Godefroid S., Mondoni A., Müller J., Rossi G., Orsenigo S., 2020 - Ex situ collections and their potential for the restoration of extinct plants. Conservation Biology, 34 (2) : 303-313. ID PMB : 69005 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69005
in Conservation Biology > vol. 34, n°2 (Année 2020) . - pp. 303-313[article]Exemplaires
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Titre : Germination requirements of nine European Aegilops species in relation to constant and alternating temperatures Type de document : Livre Auteurs : Filippo Guzzon, Auteur ; Jonas V. Müller, Auteur ; Thomas Abeli, Auteur ; Paolo Cauzzi, Auteur ; Nicola M. G. Ardenghi, Auteur ; Alma Balestrazzi, Auteur ; Graziano Rossi, Auteur ; Simone Orsenigo, Auteur Année de publication : 2015 Article en page(s) : pp. 349-354 Langues : Anglais Catégories : [Espèces (in biblio)] Aegilops Mots-clés : plante sauvage écologie germination reproduction graine culture Résumé : "The genus Aegilops represents the secondary gene pool of wheat. A better understanding of the germination behaviour of Aegilops species is important to improve their use in breeding programmes and strengthen their in situ/ex situ conservation. In this study, we investigated the germination behaviour of nine Aegilops species, five of them not yet investigated, under two alternating and two constant temperatures. Seed germination was higher than 60% in all temperature treatments and species. Alternating temperatures promoted higher germination rates in all the species and significantly enhanced seed germination in three species (Aegilops biuncialis, Aegilops geniculata and Aegilops neglecta), in comparison with constant temperatures. One of the rarest and least productive species in the genus (Aegilops uniaristata) displayed the highest germination. This study suggests that different (seed) regeneration strategies/niches occur across Aegilops species." (source : auteurs) Type de publication : périodique Référence biblio : Guzzon F., Müller J., Abeli T., Cauzzi P., Ardenghi N.-G., Balestrazzi A., Rossi G., Orsenigo S., 2015 - Germination requirements of nine European Aegilops species in relation to constant and alternating temperatures. Acta botanica gallica, 162 (4) : 349-354. ID PMB : 62042 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=62042
in Acta botanica gallica > vol. 162, n°4 (Année 2015) . - pp. 349-354[article]Exemplaires
Cote Localisation Disponibilité P0177-6 Brest Exclu du prêt
Titre : Reintroduction of a dioecious aquatic macrophyte (Stratiotes aloides L.) regionally extinct in the wild. Interesting answers from genetics Type de document : Livre Auteurs : Simone Orsenigo, Auteur ; Rodolfo Gentili, Auteur ; Alfons J.P. Smolders, Auteur ; Andrey Efremov, Auteur ; Graziano Rossi, Auteur ; Nicola M. G. Ardenghi, Auteur ; Sandra Citterio, Auteur ; Thomas Abeli, Auteur Année de publication : 2017 Article en page(s) : pp. 10-23 Langues : Anglais Mots-clés : lake pond plante menacée genetics reintroduction macrophyte nutrient enrichment pollution Résumé : "The reintroduction of a plant species regionally extinct in the wild poses a stimulating conservation challenge. If the species is dioecious and the ex situ preserved population is only of one sex, the challenge is even more difficult. To assess whether the female population of Stratiotes aloides originally studied requires a reinforcement to increase its genetic variation, and to determine from which source male individuals should be taken to re‐establish a viable population, the genetic structure of nine different accessions of S. aloides across Europe and Asia were analysed – six native populations and the last three Italian populations, preserved ex situ.
Amplified fragment length polymorphism (AFLP) fingerprinting of 190 individuals from these populations was performed using six primer combinations and chromosome counts.
AFLP markers revealed medium to high values of genetic diversity at the population level, unexpectedly including residual ex situ accessions. Neighbour‐joining tree, PCoA and STRUCTURE analyses indicate the presence of three genetic patterns identifiable in the central‐western, central and eastern Europe–Asian populations. Chromosome counts revealed the presence of diploid (2n = 24) and tetraploid (2n = 48) populations.
Similarity between populations belonging to different hydrographical basins, and differences between neighbouring populations could be explained through long‐distance bird‐mediated dispersal events. Genetic analysis showed that reinforcement with female individuals from other European populations to increase the genetic diversity of the Italian female population is not necessary. Surprisingly, the geographically closest male population (Bavaria) to the Po basin is not the best option for male reintroduction. Instead, male individuals should be reintroduced from the Rhine basin (Netherlands) and eastern part of the Danube basin (Romania)."Type de publication : périodique Référence biblio : Orsenigo S., Gentili R., Smolders A.-P., Efremov A., Rossi G., Ardenghi N.-G., Citterio S., Abeli T., 2017 - Reintroduction of a dioecious aquatic macrophyte (Stratiotes aloides L.) regionally extinct in the wild. Interesting answers from genetics. Aquatic Conservation : Marine and Freshwater Ecosystems, 27 (1) : 10-23. DOI : 10.1002/aqc.2626 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=66301
in Aquatic Conservation : Marine and Freshwater Ecosystems > vol. 27, n°1 (Février 2017) . - pp. 10-23[article]Exemplaires
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