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'Arnica montana L., 1753' 
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Partager le résultat de cette rechercheArnica montana : évaluation des ressources génétiques françaises en vue du développement de la culture en plaine et en montagne / L. Gourlin in Innovations agronomiques, 71 (2019)
Titre : Arnica montana : évaluation des ressources génétiques françaises en vue du développement de la culture en plaine et en montagne Type de document : Imprimé Auteurs : L. Gourlin ; D Bellenot Année de publication : 2019 Article en page(s) : 67-80 Langues : Français (fre) Catégories : [Thématique] Génétique et écologie (dynamique, démographique, sélection) Mots-clés : Arnica montana L., 1753 Résumé : L’arnica des montagnes est une espèce médicinale importante dont la production est principalement issue de la cueillette à l’état sauvage, notamment sur le territoire métropolitain. La ressource étant en régression, le maintien, voire le développement de la production française passe donc par la mise en culture, actuellement anecdotique car difficile. Certains freins pourraient être levés par la mise en évidence de matériel végétal adapté à la production. L’objectif de ce projet était de mettre en culture 24 populations d’origines sauvages (prospectées en France métropolitaine) et de les comparer à deux variétés commerciales témoins ‘Arbo’ et ‘Arnimed’, sur 4 sites d’expérimentation aux contextes pédoclimatiques variés mais a priori adaptés à la culture de l’espèce. Durant les 3 années d’essai, un suivi morphologique et agronomique des populations a été réalisé. Des analyses des sesquiterpènes lactones et flavonoïdes ont été effectuées, et une nouvelle méthodologie de dosage de ces composés a été développée. Les résultats mettent en exergue la forte variabilité de l’expression phénotypique et chimique des différentes souches testées. Une forte mortalité globale a pu être constatée sur l’ensemble des populations sauvages étudiées sans que les causes aient pu en être identifiées. Sur l’ensemble des variables suivies, les variétés commerciales ‘Arbo’ et ‘Arnimed’ sont particulièrement performantes, et deux populations sauvages se démarquent par leurs résultats intéressants : l’une parait pertinente pour démarrer des travaux de sélection d’une variété adaptée à la basse altitude, tandis que l’autre, originaire du Massif central, pourrait se proposer comme une alternative d’origine locale (française) à la culture de variétés commerciales sélectionnées (suisse et allemande). Identifiant pérenne : DOI : 10.15454/w0yij2
in Innovations agronomiques > 71 (2019) . - 67-80GOURLIN, L., BELLENOT, D., 2019 - Arnica montana : évaluation des ressources génétiques françaises en vue du développement de la culture en plaine et en montagne ; Innovations agronomiques, 71 : 67-80.Documents numériques
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Article (2019)URL
Titre : Comparing Wild and Cultivated Arnica montana L. from the Italian Alps to Explore the Possibility of Sustainable Production Using Local Seeds Type de document : Imprimé Auteurs : Valeria Leoni ; Gigliola Borgonovo ; Luca Giupponi ; Angela Bassoli ; Davidé Pedrali ; Marco Zuccolo ; Alessia Rodari ; Annamaria Giorgi Année de publication : 2021 Langues : Anglais (eng) Catégories : [Thématique] Plantes médicinales Mots-clés : Arnica montana L., 1753 Résumé : Arnica montana L. is an alpine herbaceous plant typical of nutrient-poor grasslands. It is a popular medicinal plant for the treatment of bruises, cuts and pain, and it is also an endangered alpine species. For this reason, the sustainable production of inflorescences instead of the spontaneous collection of plant material, coupled with the use of local ecotypes, should be incentivized. Inflorescences of a wild accession of arnica were compared versus an accession cultivated in Valsaviore (Italian Alps) in terms of seed germination performance and phytochemical characterization by high performance liquid chromatography (HPLC), nuclear magnetic resonance (NMR) and gas chromatography–mass spectrometry (GC-MS) techniques. The germination percentage was high (>75%) for both cultivated and wild seeds. The NMR spectra of arnica extracts were very similar and confirmed the presence of sesquiterpene compounds, esters of helenaline and dehydroelenaline. A significant high percentage of acetic acid methyl ester (38 ?g/g) and the 2-methyl methyl ester of propanoic acid (31 ?g/g) were found in cultivated arnica and were probably associated with fermentation processes linked to the traditional method of air drying on a trellis. The possibility of growing A. montana and a controlled local first transformation are important to incentivize local, good quality and sustainable production. The growing of seedlings “in loco” could be of great interest both for farmers and for natural conservation purposes. Identifiant pérenne : DOI : 10.3390/su13063382
in Sustainability > 13 (2021)LEONI, V., BORGONOVO, G., GIUPPONI, L., BASSOLI, A., PEDRALI, D., ZUCCOLO, M., RODARI, A., GIORGI, A., 2021 - Comparing Wild and Cultivated Arnica montana L. from the Italian Alps to Explore the Possibility of Sustainable Production Using Local Seeds ; Sustainability, 13.Documents numériques
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Article (2021)Adobe Acrobat PDF
Titre : Dispersal distance and achene quality of the rare anemochorous species Arnica montana L.: implications for conservation Type de document : Imprimé Auteurs : R. J. Strykstra ; D.M. Pegtel ; A. Bergsma Année de publication : 1998 Article en page(s) : 45-56 Langues : Anglais (eng) Mots-clés : Arnica montana L., 1753 Résumé : In The Netherlands, Arnica montana (Asteraceae) is a rare plant species. Future survival in The Netherlands depends on its ability to disperse between source populations and habitats, newly created by man. Plumed Asteraceae achenes are often considered to disperse over large distances. Therefore, these species are expected to establish easily during vegetation restoration. In this paper, the flying capability of plumed achenes is investigated in a wind-tunnel experiment. An effort is made to establish the correlation between seed quality and flying ability. It was shown that A. montana achenes are inefficient dispersers. Pappus size is significantly, but weakly, positively correlated with achene mass. Heavier achenes, therefore, stay closer to the point of release than lighter ones. There was a positive correlation between achene weight and both germination and seedling quality. Consequently, germination and seedling quality declined considerably with increasing flying capability of the achenes. It seems that A. montana, despite its plumed achenes, is adapted to an environment where moderate dispersal distances are required, up to several metres. Only lowquality achenes reach larger distances. Since large distance dispersal is a prerequisite of establishment of new populations, establishment of this species on isolated sites the Dutch landscape will depend on transport by human activity.
in Acta Botanica Neerlandica > 47(1) (1998) . - 45-56STRYKSTRA, R.J., PEGTEL, D.M., BERGSMA, A., 1998 - Dispersal distance and achene quality of the rare anemochorous species Arnica montana L.: implications for conservation ; Acta Botanica Neerlandica, 47(1) : 45-56.Documents numériques
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Article (1998)Adobe Acrobat PDF
Titre : Embryological features, pollen and seed viability of Arnica montana (Asteraceae) – a threatened endemic species in Europe Type de document : Imprimé Auteurs : Elina Yankova-Tsvetkova ; Petka Yurukova-Grancharova ; Georgi Baldjiev ; Antonina Vitkova Année de publication : 2016 Article en page(s) : 39-44 Langues : Anglais (eng) Mots-clés : Arnica montana L., 1753 Résumé : The embryological features, mode of reproduction and reproductive capacity (pollen and seed viability) on two naturalized populations of Arnica montana in Bulgaria were studied. The embryological study shows that A. montana is a facultative apomictic species in which sexual reproduction predominates. In this species, it was established that there is a comparatively high viability of the mature pollen and embryos, which enables the successful realization of its reproductive capacity. The results of the study on A. montana reveal that both sexual and asexual vegetative reproduction with rhizomes undoubtedly play more important roles than the apomixis (namely diplospory) for support and preservation of the populations. Identifiant pérenne : DOI : 10.1515/botcro-2016-0014
in Acta botanica Croatica > 75 (1) (2016) . - 39-44YANKOVA-TSVETKOVA, E., YURUKOVA-GRANCHAROVA, P., BALDJIEV, G., VITKOVA, A., 2016 - Embryological features, pollen and seed viability of Arnica montana (Asteraceae) – a threatened endemic species in Europe ; Acta botanica Croatica, 75 (1) : 39-44.Documents numériques
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Article (2016)URL
Titre : Summer aridity rather than management shapes fitness-related functional traits of the threatened mountain plant Arnica montana Type de document : Imprimé Auteurs : Nils Stanik ; Christian Lampei ; Gert Rosenthal Année de publication : 2020 Article en page(s) : 5069-5078 Langues : Français (fre) Catégories : [Thématique] Changement climatique Mots-clés : Arnica montana L., 1753 Résumé : Semi-natural mountain grasslands are increasingly exposed to environmental stress under climate change. However, which are the environmental factors that limit plants in these grasslands? Also, is the present management effective against these changes? Fitness-related functional traits may offer a way to detect changes in performance and provide new insights into their vulnerability to climate change. We investigated changes in performance and variability of functional traits of the mountain grassland target species Arnica montana along a climate gradient in Central German low mountain ranges. This gradient represents at its lower end climate conditions that are expected at its upper end under future climate change. We measured vegetative, generative, and physiological traits to account for multiple ways of plant responses to the environment. Using mixed effects and multivariate models, we evaluated changes in trait values among individuals as well as the variability of their populations in order to assess performance under changing summer aridity and different management regimes. Fitness-related performance of most traits showed strongly positive associations with reduced summer aridity at higher elevations, while only specific leaf area and leaf dry matter content showed no association. This suggests a higher performance level at less arid montane sites and that the physiological traits are less sensitive to this climate change factor. The coefficient of variation of almost all traits declined steadily with decreasing site aridity. We suggest that this reduced variability indicates a lower environmental stress level for A. montana toward its environmental optimum at montane elevations, especially because the trait performance increased simultaneously. Surprisingly, management factors and habitat characteristics had only low influence on both trait performance and variability. In summary, summer aridity had a stronger effect to shape the trait performance and variability of A. montana under increased environmental stress than management and other habitat characteristics. Identifiant pérenne : DOI : 10.1002/ece3.6259
in Ecology and Evolution > 10 (11) (2020) . - 5069-5078STANIK, N., LAMPEI, C., ROSENTHAL, G., 2020 - Summer aridity rather than management shapes fitness-related functional traits of the threatened mountain plant Arnica montana ; Ecology and Evolution, 10 (11) : 5069-5078.Documents numériques
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Article (2020)URL19 - 2021 - Arnica des montagnes : conserver un patrimoine naturel et valoriser une ressource végétale sauvage (Les fiches techniques du Conservatoire botanique national des Pyrénées et de Midi-Pyrénées) / Conservatoire botanique national des Pyrénées et de Midi-Pyrénées
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