Data/hora: 09/06/2024 14:45:20

Provedor de dados: | 52
País: | Brazil
Título: | In vitro shoot regeneration from roots and leaf discs of Passiflora cincinnata mast.
Autores: | Lombardi,Simone Pacheco; Passos,Ilene Ribeiro da Silva; Nogueira,Maria Cristina Stolf; Appezzato-da-Glória,Beatriz.
Data: | 2007-03-01
Ano: | 2007
Palavras-chave: | Anatomical; Organogenesis; 6-benzyladenine; Passionfruit.
Resumo: | Different concentrations of 6-benzyladenine (6-BA) were used in vitro to induce buds in three types of explants: leaf discs, root segments and the seedling itself obtained from in vitro seed germination of Passiflora cincinnata Mast. The 0.5 mg.L -1 6-BA concentration was most suitable for all the three explants, however, bud formation time and means (direct/indirect) were different for each type of explant. In seedlings used as explants, it had shoot regeneration from the primary root. Histological events leading to bud formation via meristemoids were described. The origin was indirect in leaf discs, with callus formation in subepidermal cells of the chlorophyll parenchyma layers. In root segments and in seedling roots, the buds were formed directly in the pericycle (in roots with some secondary structure) and in the vascular cambium (at the initial phase of secondary structure). Also, indirect buds originated from meristemoids which were formed around the callus.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000200009
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132007000200009
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.50 n.2 2007
Fonte: | info:eu-repo/semantics/openAccess