Response to In Vitro Micropropagation of Plants with Different Degrees of Variegation of the Commercial <i>Gymnocalycium</i> cv. Fancy (Cactaceae)

This study aims to establish efficient in vitro propagation protocols for <i>Gymnocalycium</i> cv. Fancy, an ornamental cactus with variegated variants, by evaluating the effects of cytokinin type and explant source on the organogenic response. Plants with different degrees of variegatio...

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Main Authors: Carles Cortés-Olmos, Vladimir Marín Guerra-Sandoval, Carla Guijarro-Real, Benito Pineda, Ana Fita, Adrián Rodríguez-Burruezo
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Plants
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Online Access:https://www.mdpi.com/2223-7747/14/7/1091
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author Carles Cortés-Olmos
Vladimir Marín Guerra-Sandoval
Carla Guijarro-Real
Benito Pineda
Ana Fita
Adrián Rodríguez-Burruezo
author_facet Carles Cortés-Olmos
Vladimir Marín Guerra-Sandoval
Carla Guijarro-Real
Benito Pineda
Ana Fita
Adrián Rodríguez-Burruezo
author_sort Carles Cortés-Olmos
collection DOAJ
description This study aims to establish efficient in vitro propagation protocols for <i>Gymnocalycium</i> cv. Fancy, an ornamental cactus with variegated variants, by evaluating the effects of cytokinin type and explant source on the organogenic response. Plants with different degrees of variegation (0–100%) were classified by size to obtain different explant types (apices, central discs, epicotyls, and hypocotyls). The effects of 6-Benzylaminopurine (BAP, 8 µM), Kinetin (KIN, 4 µM), and Thidiazuron (TDZ, 1 µM) were assessed on shoot production, callus formation, and rhizogenesis. Additionally, we studied the relationship between initial plant variegation and the productivity of the variegated shoots. The best shoot production results were obtained for central discs treated with 1 µM TDZ. Furthermore, a correlation was observed between the activated areole type (green, mixed, or fully colored) and shoot color percentage, enabling precise explant selection. The appearance of differently colored shoots confirms the potential for selecting new lines from this cultivar too. These findings hold significant potential not only for the breeding and propagation of ornamental cacti but also for the cultivation of other edible cacti and their relatives.
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spelling doaj-art-8872c3405e4e4a3daa488c7e4b1521792025-08-20T03:08:53ZengMDPI AGPlants2223-77472025-04-01147109110.3390/plants14071091Response to In Vitro Micropropagation of Plants with Different Degrees of Variegation of the Commercial <i>Gymnocalycium</i> cv. Fancy (Cactaceae)Carles Cortés-Olmos0Vladimir Marín Guerra-Sandoval1Carla Guijarro-Real2Benito Pineda3Ana Fita4Adrián Rodríguez-Burruezo5Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, SpainInstituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, SpainDepartment Biotechnology and Plant Biology, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas ETSIAAB, Universidad Politécnica de Madrid, Av. Puerta de Hierro, 2, Moncloa-Aravaca, 28040 Madrid, SpainIBMCP, Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, SpainInstituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, SpainInstituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València (UPV), Camino de Vera s/n, 46022 Valencia, SpainThis study aims to establish efficient in vitro propagation protocols for <i>Gymnocalycium</i> cv. Fancy, an ornamental cactus with variegated variants, by evaluating the effects of cytokinin type and explant source on the organogenic response. Plants with different degrees of variegation (0–100%) were classified by size to obtain different explant types (apices, central discs, epicotyls, and hypocotyls). The effects of 6-Benzylaminopurine (BAP, 8 µM), Kinetin (KIN, 4 µM), and Thidiazuron (TDZ, 1 µM) were assessed on shoot production, callus formation, and rhizogenesis. Additionally, we studied the relationship between initial plant variegation and the productivity of the variegated shoots. The best shoot production results were obtained for central discs treated with 1 µM TDZ. Furthermore, a correlation was observed between the activated areole type (green, mixed, or fully colored) and shoot color percentage, enabling precise explant selection. The appearance of differently colored shoots confirms the potential for selecting new lines from this cultivar too. These findings hold significant potential not only for the breeding and propagation of ornamental cacti but also for the cultivation of other edible cacti and their relatives.https://www.mdpi.com/2223-7747/14/7/1091citokininscolored cactusorganogenesisplant growth regulatorscactus areolasexplant
spellingShingle Carles Cortés-Olmos
Vladimir Marín Guerra-Sandoval
Carla Guijarro-Real
Benito Pineda
Ana Fita
Adrián Rodríguez-Burruezo
Response to In Vitro Micropropagation of Plants with Different Degrees of Variegation of the Commercial <i>Gymnocalycium</i> cv. Fancy (Cactaceae)
Plants
citokinins
colored cactus
organogenesis
plant growth regulators
cactus areolas
explant
title Response to In Vitro Micropropagation of Plants with Different Degrees of Variegation of the Commercial <i>Gymnocalycium</i> cv. Fancy (Cactaceae)
title_full Response to In Vitro Micropropagation of Plants with Different Degrees of Variegation of the Commercial <i>Gymnocalycium</i> cv. Fancy (Cactaceae)
title_fullStr Response to In Vitro Micropropagation of Plants with Different Degrees of Variegation of the Commercial <i>Gymnocalycium</i> cv. Fancy (Cactaceae)
title_full_unstemmed Response to In Vitro Micropropagation of Plants with Different Degrees of Variegation of the Commercial <i>Gymnocalycium</i> cv. Fancy (Cactaceae)
title_short Response to In Vitro Micropropagation of Plants with Different Degrees of Variegation of the Commercial <i>Gymnocalycium</i> cv. Fancy (Cactaceae)
title_sort response to in vitro micropropagation of plants with different degrees of variegation of the commercial i gymnocalycium i cv fancy cactaceae
topic citokinins
colored cactus
organogenesis
plant growth regulators
cactus areolas
explant
url https://www.mdpi.com/2223-7747/14/7/1091
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