Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/46838
Título: Influence of colorful light-emitting diodes on growth, biochemistry, and production of volatile organic compounds in vitro of Lippia filifolia (Verbenaceae)
Palavras-chave: Eucalyptol
Aromatic plant
Light quality
Endangered species
Tissue culture
Eucaliptol
Planta aromática
Qualidade de luz
Espécies em extinção
Cultura de tecidos
Data do documento: Nov-2020
Editor: Elsevier
Citação: CHAVES, M. C. et al. Influence of colorful light-emitting diodes on growth, biochemistry, and production of volatile organic compounds in vitro of Lippia filifolia (Verbenaceae). Journal of Photochemistry and Photobiology B: Biology, [S. I.], v. 212, Nov. 2020. DOI: https://doi.org/10.1016/j.jphotobiol.2020.112040.
Resumo: Lippia filifolia Mart. & Schauer belongs to the Verbenaceae family and it is endemic from the rupestrian fields of the Espinhaço mountain range, located in Minas Gerais, Brazil. It is an aromatic species with medicinal potential due to the production of volatile compounds that constitute its essential oil. The objective of this work was to evaluate the effects of light quality using light-emitting diodes (LEDs) over the growth of L. filifolia grown in vitro after 45 days of culture, analyzing its volatile organic compounds (VOCs), biochemical, and biometric traits. This study had four treatments according to the wavelength of LED lamps: (i) white (control), (ii) blue, (iii) red, and (iv) a combination of red + blue (mix). The light quality influenced the growth, metabolism, and VOCs production of plantlets. The specimens showed higher height under red and white treatments and higher biomass accumulation, nodal segments, and shoot numbers under the mix treatment. Higher total carbohydrate content was also observed on the mix treatment, while the white LED provided higher chlorophylls and carotenoids contents. In addition, the lipid peroxidation was more pronounced in mix and white LEDs treatments, and it was also observed significant but not quite changes in VOCs profiles due to light quality. Eucalyptol was the compound found in a higher concentration among the VOCs of L. filifolia grown in vitro at all light quality treatments studied.
URI: https://doi.org/10.1016/j.jphotobiol.2020.112040
http://repositorio.ufla.br/jspui/handle/1/46838
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