| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000436160 |
| ISSN: | 0001-3765 |
| Authors: | Souza, Marco Andre A. de1 Braga, Renan P1 Santos, André M. dos1 Rocha, Joecildo F2 Castro, Rosane N1 Fernandes, Manlio S1 Souza, Sonia R. de1 |
| Institutions: | 1Universidade Federal Rural do Rio de Janeiro, Instituto de Quimica, Seropedica, Rio de Janeiro. Brasil 2Universidade Federal Rural do Rio de Janeiro, Instituto de Ciencias Biologicas e da Saude, Seropedica, Rio de Janeiro. Brasil |
| Year: | 2020 |
| Volumen: | 92 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | The cultivation of aromatic species to obtain essential oils has great economic importance, presenting an increasing demand from different industrial sectors, especially to menthol mint (Mentha arvensis L.) essential oil, rich in menthol (70-80%). Consortium cultivation has been an important practice in agricultural systems whose land use is necessary, consequently promoting strong competition for light in reduced space. Thus, this study aimed verifying if different light intensities might promote chemical, metabolical and anatomical alterations in menthol mint. Plants were grown in greenhouse at different average of light intensities (137, 254, 406 and 543 µmol photons m2 s1). Samples were collected 43 days after germination and submitted to following analyses: Gravimetric test, photosynthetic pigments, soluble fractions, enzymatic activity, N-total, trichome density and histochemistry and chemometric test based on essential oil chemical profile. Fresh mass gain, trichome density, essential oil content and soluble sugars were positively influenced by light intensity increase. On the other hand, total-N, NO3−-N and pigments content have decreased influenced by light intensity increase. In the secretion from the trichomes, phenolic substances were reported, as well as lipophilic ones in the peltate ones. The increase of oxygenated monoterpenes was favored by light intensity decrease |
| Disciplines: | Agrociencias |
| Keyword: | Fitotecnia, Fisiología vegetal, Intensidad de la luz, Respuesta fisiológica, Aceites esenciales, Tricomas glandulares, Nitrato reductasa, Mentha arvensis, Lamiaceae |
| Keyword: | Crop husbandry, Plant physiology, Light intensity, Physiological response, Essential oils, Glandular trichomes, Nitrate reductase, Mentha arvensis, Lamiaceae |
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