Somatic embryogenesis in anthurium (Anthurium andraeanum cv. Eidibel) as affected by different explants

dc.contributor.authorPinheiro, Marcos Vinícius Marques
dc.contributor.authorMartins, Fabrina Bolzan
dc.contributor.authorCruz, Ana Claudia Ferreira da
dc.contributor.authorCarvalho, Ana Cristina Portugal Pinto de
dc.contributor.authorOliveira, Evelyn Jardim de
dc.contributor.authorOtoni, Wagner Campos
dc.date.accessioned2018-03-06T16:30:08Z
dc.date.available2018-03-06T16:30:08Z
dc.date.issued2012-07-16
dc.description.abstractThis study establishes a protocol for the induction of somatic embryogenesis in Anthurium andraeanum cv. Eidibel. The experiment was arranged in a completely randomized 5 x 5 x 5 factorial design using five explant types (whole leaves, half leaves; petiole; nodal segments and root segments) from in vitro plantlets; five auxins: indole-3-acetic acid (IAA), α-naphthaleneacetic acid (NAA), indole-3-butyric acid (IBA), 2,4-dichlorophenoxyacetic acid (2,4-D), and 4-amino-3,5,6-trichloropicolinic acid (Picloram); at five concentrations (0, 2.5, 5, 7.5 and 10 μM), with five replications using five Petri dishes. The cultures were maintained in a growth room at 25 ± 2oC in the dark. The explant type was investigated for the induction of somatic embryogenesis in anthurium cv. Eidibel, and nodal segments were shown to be the most suitable explant for this process. After 60 days in culture, the highest number of embryogenic calli was recorded for the nodal segments cultured in NAA (5, 7.5 and 10 μM), 2,4-D (10 μM) and Picloram (7.5 and 10 μM). The histological analysis confirmed the presence of embryos with established polarization, procambium, ground meristem and protoderm in the nodal segments cultured in Pierik medium containing 10 μM NAA. After the conversion of the somatic embryos into plantlets, these plantlets were acclimatized transferred to in vivo conditions and grown into normal plants.pt-BR
dc.description.abstractO objetivo foi estabelecer um protocolo para indução de embriogênese somática em Anthurium andraeanum cv. Eidibel. O experimento foi arranjado em delineamento inteiramente casualizado, com esquema fatorial 5 x 5 x 5, cinco explantes (folha inteira e seccionada ao meio; pecíolo; segmento nodal e de raiz); cinco auxinas (AIA, ANA, AIB, 2,4-D e Picloram) em cinco concentrações (0,0; 2,5; 5,0; 7,5 e 10 μM) e cinco repetições, consistindo de cinco placas de Petri, mantidas em sala de crescimento a 25 ± 2 oC, no escuro. Após 60 dias de cultivo, a maior produção de calos embriogênicos foi registrada nos segmentos nodais cultivados na presença de ANA (5; 7,5 e 10 μM), 2,4-D (10 μM) ou Picloram (7,5 e 10 μM). As análises histológicas confirmaram a presença de embriões com polaridade definida, procâmbio, meristema fundamental e protoderme em segmentos nodais cultivados em meio Pierik com 10 μM ANA. Depois da conversão dos embriões somáticos, as plantas foram aclimatizadas e transferidas para as condições in vivo, com crescimento normal das mesmas.pt-BR
dc.formatpdfpt-BR
dc.identifier.issn18078621
dc.identifier.urihttp://dx.doi.org/10.4025/actasciagron.v36i1.16557
dc.identifier.urihttp://www.locus.ufv.br/handle/123456789/18091
dc.language.isoengpt-BR
dc.publisherActa Scientiarum. Agronomypt-BR
dc.relation.ispartofseriesv. 36, n. 1, p. 87-98, Janeiro-Março 2014pt-BR
dc.rightsOpen Accesspt-BR
dc.subjectAuxinspt-BR
dc.subjectNodal segmentspt-BR
dc.subjectSomatic embryospt-BR
dc.titleSomatic embryogenesis in anthurium (Anthurium andraeanum cv. Eidibel) as affected by different explantsen
dc.typeArtigopt-BR

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