Effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants
Embryogenic cultures were initiated from immature Melia azedarach (Meliaceae) zigotic embryos. Explants were induced on Murashige and Skoog (1962) medium with 4.54 μM thidiazuron or 0.45 μM dichlorophenoxyacetic acid. After 6 weeks of culture on induction medium, somatic embryos were categorized...
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I48-R184-123456789-486142024-09-30T13:47:09Z Effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants Vila, Silvia González, Ana María Rey, Hebe Yolanda Mroginski, Luis Amado Somatic embryo morphology Conversion Histology Scanning electron microscopy Embryogenic cultures were initiated from immature Melia azedarach (Meliaceae) zigotic embryos. Explants were induced on Murashige and Skoog (1962) medium with 4.54 μM thidiazuron or 0.45 μM dichlorophenoxyacetic acid. After 6 weeks of culture on induction medium, somatic embryos were categorized in four morphological classes based on the presence of single or fused embryos and if they remained united or not to the original explant; that were evaluated histologically. The somatic embryos of every category were transferred, in groups or individually, on a 1/4 MS medium. Bipolar embryos, the more typically normal ones, had well defined shoot and root apical meristems and produced single plants; subcultured individually their conversion was 28%, and subcultured in groups the conversion declined to 6.8%. Fused embryos subcultured in groups had only a 2.1% conversion and produced plants with fused stems. None conver- sion rate in the others classes was associated to poorly developed shoot and root meristematic areas or with their absence. The converted plants were acclimatized and transferred, in a mist, to soil, with an independent of the class 95% survival rate. 2022-06-30T20:07:44Z 2022-06-30T20:07:44Z 2010-01-16 Artículo Vila, Silvia, et al., 2010. Effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants. Biocell. Mendoza: Sociedad Latinoamericana de Microscopia Electrónica, vol. 34, no. 1, p. 7-13. e-ISSN 1667-5746. 0327-9545 http://repositorio.unne.edu.ar/handle/123456789/48614 spa https://www.scielo.org.ar/pdf/biocell/v34n1/v34n1a02.pdf openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Sociedad Latinoamericana de Microscopia Electrónica Biocell, 2010, vol. 34, no. 1, p. 7-13. |
institution |
Universidad Nacional del Nordeste |
institution_str |
I-48 |
repository_str |
R-184 |
collection |
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) |
language |
Español |
topic |
Somatic embryo morphology Conversion Histology Scanning electron microscopy |
spellingShingle |
Somatic embryo morphology Conversion Histology Scanning electron microscopy Vila, Silvia González, Ana María Rey, Hebe Yolanda Mroginski, Luis Amado Effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants |
topic_facet |
Somatic embryo morphology Conversion Histology Scanning electron microscopy |
description |
Embryogenic cultures were initiated from immature Melia azedarach (Meliaceae) zigotic
embryos. Explants were induced on Murashige and Skoog (1962) medium with 4.54 μM thidiazuron or 0.45
μM dichlorophenoxyacetic acid. After 6 weeks of culture on induction medium, somatic embryos were categorized in four morphological classes based on the presence of single or fused embryos and if they remained
united or not to the original explant; that were evaluated histologically. The somatic embryos of every category were transferred, in groups or individually, on a 1/4 MS medium. Bipolar embryos, the more typically
normal ones, had well defined shoot and root apical meristems and produced single plants; subcultured individually their conversion was 28%, and subcultured in groups the conversion declined to 6.8%. Fused embryos subcultured in groups had only a 2.1% conversion and produced plants with fused stems. None conver-
sion rate in the others classes was associated to poorly developed shoot and root meristematic areas or with
their absence. The converted plants were acclimatized and transferred, in a mist, to soil, with an independent
of the class 95% survival rate. |
format |
Artículo |
author |
Vila, Silvia González, Ana María Rey, Hebe Yolanda Mroginski, Luis Amado |
author_facet |
Vila, Silvia González, Ana María Rey, Hebe Yolanda Mroginski, Luis Amado |
author_sort |
Vila, Silvia |
title |
Effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants |
title_short |
Effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants |
title_full |
Effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants |
title_fullStr |
Effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants |
title_full_unstemmed |
Effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants |
title_sort |
effect of morphological heterogeneity of somatic embryos of melia azedarach on conversion into plants |
publisher |
Sociedad Latinoamericana de Microscopia Electrónica |
publishDate |
2022 |
url |
http://repositorio.unne.edu.ar/handle/123456789/48614 |
work_keys_str_mv |
AT vilasilvia effectofmorphologicalheterogeneityofsomaticembryosofmeliaazedarachonconversionintoplants AT gonzalezanamaria effectofmorphologicalheterogeneityofsomaticembryosofmeliaazedarachonconversionintoplants AT reyhebeyolanda effectofmorphologicalheterogeneityofsomaticembryosofmeliaazedarachonconversionintoplants AT mroginskiluisamado effectofmorphologicalheterogeneityofsomaticembryosofmeliaazedarachonconversionintoplants |
_version_ |
1832344138194878464 |