In vitro micropropagation protocols for two endangered Dianthus species - via in vitro culture for conservation and recultivation purposes

Abstract Background D. giganteiformis subsp. pontederae and D. superbus subsp. superbus are protected or critically endangered species in several European regions; therefore, developing an efficient in vitro micropropagation protocol is essential for germplasm conservation and recultivation purposes...

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Main Authors: Dóra Farkas, Judit Csabai, Angéla Kolesnyk, Pál Szarvas, Judit Dobránszki
Format: Article
Language:English
Published: BMC 2025-02-01
Series:Plant Methods
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Online Access:https://doi.org/10.1186/s13007-025-01335-2
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author Dóra Farkas
Judit Csabai
Angéla Kolesnyk
Pál Szarvas
Judit Dobránszki
author_facet Dóra Farkas
Judit Csabai
Angéla Kolesnyk
Pál Szarvas
Judit Dobránszki
author_sort Dóra Farkas
collection DOAJ
description Abstract Background D. giganteiformis subsp. pontederae and D. superbus subsp. superbus are protected or critically endangered species in several European regions; therefore, developing an efficient in vitro micropropagation protocol is essential for germplasm conservation and recultivation purposes. Results After germination, one-nodal segments of both species were transferred onto several MS media supplemented with 3% sucrose and different types of cytokinins (at a concentration of 4.5 µM) alongside 0.54 µM 1-naphthaleneacetic acid (NAA) for the multiplication phase for 3 weeks. The shoot clusters were subsequently transferred onto elongation medium (plant growth regulator-free MS medium) for 3 weeks. Individual shoots separated from the shoot clusters were cultured on MS medium supplemented with 0.54 µM NAA and 2% sucrose for 3 weeks for rooting. Taking into account the effects and after-effects of cytokinins, we found that the most suitable cytokinin for D. giganteiformis subsp. pontederae was N-(2-isopentenyl)-adenine (2-iP), while for D. superbus subsp. superbus it was meta-topolin (mT). Conclusions In vitro micropropagation methods were developed for two endangered Dianthus species (D. giganteiformis subsp. pontederae and D. superbus subsp. superbus) by determining the optimal type of cytokinin to be used during the multiplication phase. The protocols are designed to produce large quantities of propagation material for recultivation, educational, and research purposes within three months.
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spelling doaj-art-d3e5f182e79a482784e3f482fc314baf2025-02-09T12:38:41ZengBMCPlant Methods1746-48112025-02-0121111110.1186/s13007-025-01335-2In vitro micropropagation protocols for two endangered Dianthus species - via in vitro culture for conservation and recultivation purposesDóra Farkas0Judit Csabai1Angéla Kolesnyk2Pál Szarvas3Judit Dobránszki4Centre for Agricultural Genomics and Biotechnology, Faculty of Agricultural and Food Science and Environmental Management, University of DebrecenInstitute of Engineering and Agricultural Sciences, University of NyíregyházaDepartment of Genetics, Plant Biology and Microbiology, Uzhhorod National UniversityCentre for Agricultural Genomics and Biotechnology, Faculty of Agricultural and Food Science and Environmental Management, University of DebrecenCentre for Agricultural Genomics and Biotechnology, Faculty of Agricultural and Food Science and Environmental Management, University of DebrecenAbstract Background D. giganteiformis subsp. pontederae and D. superbus subsp. superbus are protected or critically endangered species in several European regions; therefore, developing an efficient in vitro micropropagation protocol is essential for germplasm conservation and recultivation purposes. Results After germination, one-nodal segments of both species were transferred onto several MS media supplemented with 3% sucrose and different types of cytokinins (at a concentration of 4.5 µM) alongside 0.54 µM 1-naphthaleneacetic acid (NAA) for the multiplication phase for 3 weeks. The shoot clusters were subsequently transferred onto elongation medium (plant growth regulator-free MS medium) for 3 weeks. Individual shoots separated from the shoot clusters were cultured on MS medium supplemented with 0.54 µM NAA and 2% sucrose for 3 weeks for rooting. Taking into account the effects and after-effects of cytokinins, we found that the most suitable cytokinin for D. giganteiformis subsp. pontederae was N-(2-isopentenyl)-adenine (2-iP), while for D. superbus subsp. superbus it was meta-topolin (mT). Conclusions In vitro micropropagation methods were developed for two endangered Dianthus species (D. giganteiformis subsp. pontederae and D. superbus subsp. superbus) by determining the optimal type of cytokinin to be used during the multiplication phase. The protocols are designed to produce large quantities of propagation material for recultivation, educational, and research purposes within three months.https://doi.org/10.1186/s13007-025-01335-2CytokininsDisordersGenotype dependenceMicropropagationOptimal growth index
spellingShingle Dóra Farkas
Judit Csabai
Angéla Kolesnyk
Pál Szarvas
Judit Dobránszki
In vitro micropropagation protocols for two endangered Dianthus species - via in vitro culture for conservation and recultivation purposes
Plant Methods
Cytokinins
Disorders
Genotype dependence
Micropropagation
Optimal growth index
title In vitro micropropagation protocols for two endangered Dianthus species - via in vitro culture for conservation and recultivation purposes
title_full In vitro micropropagation protocols for two endangered Dianthus species - via in vitro culture for conservation and recultivation purposes
title_fullStr In vitro micropropagation protocols for two endangered Dianthus species - via in vitro culture for conservation and recultivation purposes
title_full_unstemmed In vitro micropropagation protocols for two endangered Dianthus species - via in vitro culture for conservation and recultivation purposes
title_short In vitro micropropagation protocols for two endangered Dianthus species - via in vitro culture for conservation and recultivation purposes
title_sort in vitro micropropagation protocols for two endangered dianthus species via in vitro culture for conservation and recultivation purposes
topic Cytokinins
Disorders
Genotype dependence
Micropropagation
Optimal growth index
url https://doi.org/10.1186/s13007-025-01335-2
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