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Título: | Effect of Arabinogalactans on Induction of White-Opaque Somatic Embryos of Avocado (Persea americana Mill.) cv. Duke-7 |
Autor: | Encina, C. L.; Hamdi, Amel CSIC ORCID; Rodríguez-Arcos, Rocío CSIC ORCID ; Jiménez Araujo, Ana CSIC ORCID ; Regalado, J. J.; Guillén Bejarano, Rafael CSIC ORCID | Palabras clave: | AGP extraction WOSE induction Avocado cultivars Somatic embryogenesis Subtropical trees |
Fecha de publicación: | 21-dic-2023 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Plants 13 (1): 37 (2024) | Resumen: | The development of somatic embryogenesis in avocado (Persea americana Mill.) has been hampered by different chronic problems. One such problem is the low level of induction of white-opaque somatic embryos (WOSEs) during the process of obtaining full avocado plants. We detected the induction of multiple WOSEs promoted after the placement of three or four small WOSEs over the embryogenic callus of Duke-7. Among the other possible chemical inductors of the Arabinogalactans (AGPs), we identified a family of extracellular plant proteoglycans implicated in many aspects of the in vitro induction of somatic embryos (SE). We extracted AGPs directly from embryogenic cultures of avocado. When the induction/proliferation medium of embryogenic avocado calli (MS-0.1 mg L-1 Picloram) was supplemented with 1-2 mg L-1 AGP, the induction rate of good-quality WOSEs from the embryogenic callus increased significantly (more than ten times that of the control without AGP) and this effect persisted for at least five subcultures after the initial treatment with AGP. AGP also modified the texture and quality of the callus. The effect of AGP extends to other cultivars and proliferation media. Our objectives were to improve the induction of WOSEs and study the effect of AGP in the somatic embryogenesis of avocado. | Descripción: | 15 Páginas.-- 7 Figuras.-- 6 Tablas | Versión del editor: | https://doi.org/10.3390/plants13010037 | URI: | http://hdl.handle.net/10261/344072 | DOI: | 10.3390/plants13010037 | ISSN: | 2223-7747 |
Aparece en las colecciones: | (IG) Artículos |
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plants-13-00037-v2.pdf | Artículo principal | 7,06 MB | Adobe PDF | Visualizar/Abrir |
plants-2764953-supplementary.pdf | Material suplementario | 78,36 kB | Adobe PDF | Visualizar/Abrir |
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