1. In vitro micropropagation and tiliroside production in Paratecoma peroba (Record) Kuhlm, an endemic and endangered Brazilian tree.
- Author
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Pinheiro, Larissa Zambe, Ramos, Carolina Chaves, Oliveira, Daniela Barros de, Nunes, Clara dos Reis, Bernardes, Natalia Ribeiro, Glória, Lorena Lima, Lemos, Carolina de Oliveira, Santa-Catarina, Claudete, and Pereira, Silvia Menezes de Faria
- Subjects
PLANT growing media ,ACTIVATED carbon ,BIODIVERSITY conservation ,GIBBERELLIC acid ,GERMINATION - Abstract
In vitro tissue culture can be an alternative method for endangered species propagation, biodiversity conservation and secondary metabolite studies. Paratecoma peroba (Record) Kuhlm. (Bignoniaceae) is an endemic and endangered Brazilian species. This work aimed to establish in vitro morphogenesis and callus induction and to perform a phytochemical analysis of P. peroba callus extract. Higher seed germination (43%) was obtained in Wood Plant Medium culture without activated charcoal (AC). Combination of 5 µM benzyladenine + 10 µM gibberellic acid, without AC, resulted in a higher number of shoots (2 shoots/explant). A callus culture was stabilised from zygotic embryos using 2,4-dichlorophenoxyacetic acid. A callus methanolic extract was used for phytochemical analysis. The isolated substance was identified as tiliroside (kaempferol 3-O-β-D-(6"-O-E-p-coumaroyl)-glucopyranoside) by NMR and quantified in callus and leaf extracts by HPLC. This study adds to the chemical knowledge of this species and it is the first report of a flavonol in Paratecoma. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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