Vol. 2, Issue 4 (2013)
Jacaranda ulei Bureau and K. Schum. (Bignoniaceae): in vitro seedling developmental study as contribution towards the domestication of this medicinal Brazilian savannah species.
Author(s): Conceição E. S. Silveira1*, Wagner S. Fukuda1, Tatiana D. Miranda1, Dario Palhares1, Luiz A. R. Pereira
Abstract: Jacaranda ulei is a Cerrado species used in traditional medicine and has been indicated for high cholesterol and inflammatory processes. This study has focused on in vitro seed germination, and initial seedling growth of J. ulei. Seed decontamination was effective (>95%), and germinability was above 90% for all collected seeds, except those from mother-plant-3 (75%). The majority of the seedlings were morphologically normal, with epigeal phanerocotylar germination, with leaf and cordate cotyledons, and the collet region was obliquely to the stem. The number of leaflets increased in the eophylls with the development. Around the 120th day of culture, seedlings continued to develop and the primary roots were well developed, with few lateral roots and no thickening at the collet region. This study showed that J. ulei may be germinated in vitro, which is an important step for domestication and will help to establish a propagation protocol for this species.