Effect of Cryopreservation on Olive (<i>Olea europaea</i> L.) Plant Regeneration via Somatic Embryogenesis
Olive somatic embryos have been successfully cryopreserved using the droplet-vitrification method on aluminum foil strips. Although acceptable recovery rates have been obtained after rewarming, the influence of this cryopreservation protocol on the somatic embryogenesis process is unknown. To evalua...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/1/34 |
| _version_ | 1797543585236647936 |
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| author | Fatiha Bradaï Carolina Sánchez-Romero |
| author_facet | Fatiha Bradaï Carolina Sánchez-Romero |
| author_sort | Fatiha Bradaï |
| collection | DOAJ |
| description | Olive somatic embryos have been successfully cryopreserved using the droplet-vitrification method on aluminum foil strips. Although acceptable recovery rates have been obtained after rewarming, the influence of this cryopreservation protocol on the somatic embryogenesis process is unknown. To evaluate the effect of cryopreservation on olive somatic embryogenesis, the behavior of cultures established from cryopreserved somatic embryos was compared with that of control, non-cryopreserved cultures in the different phases of the somatic embryogenesis process. In order to analyze the influence of the genotype, this investigation was carried out in two independent lines. During the proliferation step, only the line T1 was affected by cryopreservation, with higher fresh weight increases. Although similar total embryos were produced per culture, freezing in liquid nitrogen significantly improved the maturation pattern in the line P5. Better germination results were also found in this embryogenic line. The genotype plays a key role, largely determining the effect of cryopreservation on olive somatic embryogenesis. A specific genotype-dependent response was found depending on the culture step. Variations observed could not be associated to differences in the embryogenic lines’ instability to maintain their morphogenic competence after cryopreservation. Embryogenic cultures established after rewarming retained their regeneration capacity, with no evident negative effects affecting their regeneration capacity. |
| first_indexed | 2024-03-10T13:46:42Z |
| format | Article |
| id | doaj.art-a73b4e6a5e3f40d78f4026361e9eaf0a |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T13:46:42Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-a73b4e6a5e3f40d78f4026361e9eaf0a2023-11-21T02:32:02ZengMDPI AGPlants2223-77472020-12-011013410.3390/plants10010034Effect of Cryopreservation on Olive (<i>Olea europaea</i> L.) Plant Regeneration via Somatic EmbryogenesisFatiha Bradaï0Carolina Sánchez-Romero1Departamento de Botánica y Fisiología Vegetal, Campus de Teatinos s/n, Universidad de Málaga, 29071 Málaga, SpainDepartamento de Botánica y Fisiología Vegetal, Campus de Teatinos s/n, Universidad de Málaga, 29071 Málaga, SpainOlive somatic embryos have been successfully cryopreserved using the droplet-vitrification method on aluminum foil strips. Although acceptable recovery rates have been obtained after rewarming, the influence of this cryopreservation protocol on the somatic embryogenesis process is unknown. To evaluate the effect of cryopreservation on olive somatic embryogenesis, the behavior of cultures established from cryopreserved somatic embryos was compared with that of control, non-cryopreserved cultures in the different phases of the somatic embryogenesis process. In order to analyze the influence of the genotype, this investigation was carried out in two independent lines. During the proliferation step, only the line T1 was affected by cryopreservation, with higher fresh weight increases. Although similar total embryos were produced per culture, freezing in liquid nitrogen significantly improved the maturation pattern in the line P5. Better germination results were also found in this embryogenic line. The genotype plays a key role, largely determining the effect of cryopreservation on olive somatic embryogenesis. A specific genotype-dependent response was found depending on the culture step. Variations observed could not be associated to differences in the embryogenic lines’ instability to maintain their morphogenic competence after cryopreservation. Embryogenic cultures established after rewarming retained their regeneration capacity, with no evident negative effects affecting their regeneration capacity.https://www.mdpi.com/2223-7747/10/1/34embryogenic culturegenotypemorphogenic competenceregeneration capacitysomatic embryo |
| spellingShingle | Fatiha Bradaï Carolina Sánchez-Romero Effect of Cryopreservation on Olive (<i>Olea europaea</i> L.) Plant Regeneration via Somatic Embryogenesis Plants embryogenic culture genotype morphogenic competence regeneration capacity somatic embryo |
| title | Effect of Cryopreservation on Olive (<i>Olea europaea</i> L.) Plant Regeneration via Somatic Embryogenesis |
| title_full | Effect of Cryopreservation on Olive (<i>Olea europaea</i> L.) Plant Regeneration via Somatic Embryogenesis |
| title_fullStr | Effect of Cryopreservation on Olive (<i>Olea europaea</i> L.) Plant Regeneration via Somatic Embryogenesis |
| title_full_unstemmed | Effect of Cryopreservation on Olive (<i>Olea europaea</i> L.) Plant Regeneration via Somatic Embryogenesis |
| title_short | Effect of Cryopreservation on Olive (<i>Olea europaea</i> L.) Plant Regeneration via Somatic Embryogenesis |
| title_sort | effect of cryopreservation on olive i olea europaea i l plant regeneration via somatic embryogenesis |
| topic | embryogenic culture genotype morphogenic competence regeneration capacity somatic embryo |
| url | https://www.mdpi.com/2223-7747/10/1/34 |
| work_keys_str_mv | AT fatihabradai effectofcryopreservationonoliveioleaeuropaeailplantregenerationviasomaticembryogenesis AT carolinasanchezromero effectofcryopreservationonoliveioleaeuropaeailplantregenerationviasomaticembryogenesis |