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Differentiation and Propagation Potential of Arnica montana L. Achenes as a Consequence of the Morphological Diversity of Flowers and the Position of Flower Heads on the Plant / Piotr Sugier in Plants, 11 (2022) 

Public Citation [article]  inPlants > 11 (2022) . - 3424 Titre : Differentiation and Propagation Potential of Arnica montana L. Achenes as a Consequence of the Morphological Diversity of Flowers and the Position of Flower Heads on the Plant Type de document : Numérique Auteurs : Piotr Sugier ; Anna Rysiak ; Danuta Sugier ; Krystyna Winiarczyk ; Dan Wolkowycki ; Alksander Kolos Année de publication : 2022 Article en page(s) : 3424 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Morphologie végétale Mots-clés : Arnica montana L., 1753 Résumé : Arnica montana L. is a very important medicinal plant and simultaneously a European endemic endangered plant species. The morphological features and details of seed development and achene variability are poorly recognized. The aim of this study was to determine the impact of the achene position in the infructescence and the location of the inflorescence on the plant on the (i) morphological characteristics and germination ability of achenes, and (ii) recruitment of seedlings and their biometric features. Infructescences containing fully ripe achenes were randomly collected from A. montana individuals for the measurements and the germination experiment. Scanning electron microscopy, fluorescence microscopy, and light microscopy were used for characterization of flowers and achenes. The morphological traits of achenes and reproductive characteristics of A. montana were determined by the position of the achenes in the infructescence and the location of the inflorescence on the plant. The surface of arnica achenes is equipped with non-glandular and glandular trichomes, which is very rarely presented in species of the family Asteraceae. It is possible that the fluid-containing glandular trichomes are a source of essential oils. The peripherally located achenes were longer, thinner, and lighter. They were characterized by lower embryo weight, lower embryo/achene weight ratio, and lower germination capacity in comparison to the centrally located ones. The results presented in this article fill the gap in the knowledge of the morphology of achenes and the biology of the species, and provide information that can help in breeding programs, active protection, and field cultivation. Identifiant : DOI : 10.3390/plants11243424 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=154879 Sugier, Piotr, Rysiak, Anna, Sugier, Danuta, Winiarczyk, Krystyna, Wolkowycki, Dan, Kolos, Alksander 2022 Differentiation and Propagation Potential of Arnica montana L. Achenes as a Consequence of the Morphological Diversity of Flowers and the Position of Flower Heads on the Plant. Plants, 11: 3424.

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Propagation and Introduction of Arnica montana L. into Cultivation / Danuta Sugier in The Scientific World Journal, 2013 (2013) 

Public Citation [article]  inThe Scientific World Journal > 2013 (2013) . - 1-11 Titre : Propagation and Introduction of Arnica montana L. into Cultivation : A Step to Reduce the Pressure on Endangered and High-Valued Medicinal Plant Species Type de document : Imprimé Auteurs : Danuta Sugier ; Piotr Sugier ; Urszula Gawlik-Dziki Année de publication : 2013 Article en page(s) : 1-11 Catégories : [CBNPMP-Thématique] Génétique et écologie (dynamique, démographique, sélection) Mots-clés : Arnica montana L. Résumé : Arnica montana (L.) is an endangered and endemic medicinal plant species in Europe. The pressure on natural sources of this plant is alleviated by a suitable use of arnica resources in the European region and introduction into cultivation. The objective of this study was to describe the impact of different ways of plant propagation and introduction on the growth and reproduction mode of this species. During the six consecutive years of the field experiment, the vegetative and reproductive traits were monitored, and survival time was assessed. The particular ways of arnica plant propagation and introduction determined all the intrinsic species traits and plant survival. The values of the characteristics studied indicated good acclimatization of the arnica ecotype to the climatic conditions of eastern Poland. Practical implications from the data presented here include the possibility of using the presented modes of arnica propagation and introduction in the short- and long-term perspective of arnica cultivation, which can give a possibility of better adjustment of raw material production. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148041 Sugier, Danuta, Sugier, Piotr, Gawlik-Dziki, Urszula 2013 Propagation and Introduction of Arnica montana L. into Cultivation : A Step to Reduce the Pressure on Endangered and High-Valued Medicinal Plant Species. The Scientific World Journal, 2013: 1-11.

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