Effect of plant growth regulators on in vitro regeneration of Lavandula dentata L. shoot tips

Autores/as

  • Laboratório de Micropropagação de Plantas, Departamento de Fitotecnia e Fitossanitarismo da Universidade Federal do Paraná (UFPR)
  • Marilia Pereira Machado Universidade Federal do Paraná
  • André Luís Lopes da Silva Universidade Federal do Paraná
  • Luiz Antônio Biasi Universidade Federal do Paraná

DOI:

https://doi.org/10.20873/jbb.uft.cemaf.v2n3.machado

Palabras clave:

Micropropagation, in vitro establishment, explants, aromatic plants

Resumen

Tissue culture has been used for various purposes, and explant regeneration, in the culture establishment phase, is a determining step for the technique. One of the difficulties encountered in the initial phase, besides contamination by microorganisms, is the regenerative capacity of isolated explants, which usually require an exogenous source of growth regulator for their development. The objective of this work was to evaluate the effect of growth regulators on the regeneration of Lavandula dentata stem apexes. Stem apexes were isolated in LS culture medium, plus 20 g L-1 sucrose, 2.5 µM indolbutyric acid (IBA) and 6 g L-1 agar. Different concentrations of 6-benzylaminopurine (BAP) combined or not with 0.3 µM gibberellic acid (GA3) were tested. The experimental design was randomized blocks with four replications of 10 explants per plot. The highest shoot height was 2.7 cm obtained with 0.5 µM BAP + 2.5 µM IBA + 0.3 µM GA3. The largest number of leaves per shoot was obtained with 1.0 µM BAP + 2.5 µM IBA, being ca. 8 leaves per bud. The highest percentage of regenerated explants was obtained with the 10.0 µM BAP + 2.5 µM IBA + 0.3 µM GA3 treatment, in which 90% of the explants formed new shoots. It was concluded that the combination of the growth regulators tested promoted the initial development of stem apexes, and in the presence of GA3 longer shoots were obtained.

Citas

Alves, S. A. O.; Lemos, O. F. de; Santos Filho, B. G.; Silva, A. L. L. da. (2011), In vitro embryo rescue of interspecific hybrids of oil palm (Elaeis oleifera x Elaeis guineensis). Journal of Biotechnology and Biodiversity, 2, 1-6.

Calvo, M. C.; Segura, J. (1989), In vitro propagation of lavender. HortScience, 24, 375-376.

Carvalho, J. M. F. C. de. (1999), Técnicas de micropropagação. Campina Grande: EMBRAPA Algadão, 39p. (Documentos 64).

Echeverrigaray, S.; Basso, R.; Andrade, L.B. (2005), Micropropagation of Lavandula dentata from axillary buds of field-grown adult plants. Biologia Plantarum, 49, 439-442.

Grattapaglia, D.; Machado, M. A. (1998), Micropropagação. In: Torres, A. C.; Caldas, L. S.; Buso, J. A. Cultura de tecidos e transformação genética de plantas. v. 1, Brasília: EMBRAPA, 508 p.

Jordan, A. M.; Calvo, M. C.; Segura, J. (1998), Micropropagation of adult Lavandula dentata plants. Journal of Horticultural Science & Biotechnology, 73, 93-96.

Linsmaier, E.M.; Skoog, F. (1965), Organic growth factors requirements of tobacco tissue cultures. Physiologia Plantarum, 18, 100-127.

Nagao, E. O.; Pasqual, M.; Ramos, J. D. (1994), Efeitos da sacarose e do nitrogênio inorgânico sobre a multiplicação in vitro de brotações de porta-enxerto de citros. Bragantia, 53, 25-31.

Oliveira, P. P.; Pasqual, M. E.; Paiva, R. (1995), Efeito de diferentes reguladores de crescimento sobre a proliferação in vitro de brotos de Crisântemo (Dendranthema grandiflora tzevelev). Ciência e Prática, 19, 390-396.

Pierik, R. L. M. (1990), Produccion de plantas libres de enfermedades In: Pierik, R.L.M. (Ed.) Cultivo in vitro de las plantas superiores. Madrid: Ediciones Mundi-Pronsa, 1990. p.169-180.

Sudriá, C.; Piñol, M. T.; Palazon, J.; Cusido, R. M.; Vila, R. ; Morales, C.; Bonfill, M.; Canigueral, S. (1999), Influence of plant growth regulators on the growth and essential oil content of cultured Lavandula dentata plants. Plant Cell, Tissue and Organ Culture, 58, 177-184.

Quazi, M. H. (1980), In vitro propagation of Lavandula spp. Annals of Botany, 45, 361-362.

Publicado

2011-08-08

Cómo citar

Marília Pereira, André Luís Lopes, Luiz Antonio, Machado, M. P., Silva, A. L. L. da, & Biasi, L. A. (2011). Effect of plant growth regulators on in vitro regeneration of Lavandula dentata L. shoot tips. Journal of Biotechnology and Biodiversity, 2(3), 28–31. https://doi.org/10.20873/jbb.uft.cemaf.v2n3.machado

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