Data/hora: 10/06/2024 12:06:37

Provedor de dados: | 65
País: | Brazil
Título: | Somatic embryos from Phalaenopsis classic Spotted Pink (Orchidaceae) protocorms
Autores: | Pereira,João Alves Ferreira; Ferreira,Laís Tomaz; Morais,Marciana Bizerra de; Ulisses,Cláudia.
Data: | 2019-01-01
Ano: | 2019
Palavras-chave: | Orchid; Protocormoids; Somatic embryogenesis.
Resumo: | ABSTRACT:  The aim of the present study was to induce the formation of somatic embryos in protocorms from Phalaenopsis Classic Spotted Pink hybrids at two physiological maturation stages, namely: 80 and 120 days after seed inoculation (DASI). Protocorms were inoculated in ½ MS medium supplemented with 0.1 mg L-1 ANA and 3 mg L-1 TDZ. Protocorms were inoculated 120 days after sowing were more developed at the 15th cultivation day due to the formation of pro-embryogenic structures. It was possible seeing the formation of globular- and torpedo-stage somatic embryos at the 30th day of cultivation in somatic embryogenesis (SE) induction medium. The protocorms inoculated at the 80th DASI did not formed somatic embryos; they oxidized 20 days after cultivation in SE-induction medium. The formation of somatic embryos happened directly on the explant, thus characterizing a direct somatic embryogenesis. The embryos converted into plants when the somatic embryos were transferred to the nutrient medium containing no growth regulator. Therefore, it was concluded that the somatic embryos induction from protocorms 120 days after sowing was positive, since the embryos were able to become plants and presented vegetative organs with morphological traits similar to those of the matrix plant.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000700401
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20180822
Formato: | text/html
Fonte: | Ciência Rural  v.49 n.7 2019
Fonte: | info:eu-repo/semantics/openAccess