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| CORPES, R.; MONTEIRO, L.; ANDRADE, E. H.; MAIA, J. G.; MENEZES, I. C. de; SETZER, W. N.; RAMOS, A. R.; SILVA, J. K. R. da.. |
| In this study, P. divaricatum (Piperaceae) plants were subcultured by cuttings and cell tissue in order to carry out a comparison of the volatile profile, phenolic compounds, and antioxidant activity. Propagation by cuttings used vermiculite substrate and Murashige-Skoog (MS) medium in the absence of growth regulators and rooting started at 15 days of growth providing a higher number of plants after 90 days. In vitro propagation was performed using shoot apices as explants in MS media supplemented with 0.5 mg mL-1 BA (6-benzyladenine). Volatile profiles analyzed by gas chromatography-mass spectrometry (GC-MS) showed as main compounds methyl eugenol, E-?-ocimene, and ?-elemene in the in vivo and in vitro cultures. Phenolic contents determined by the... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Propagação Vegetativa; Micropropagação; Antioxidante; Piperaceae. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116857 |
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| LUZ, S. F. M. da; YAMAGUCHI, L. F.; KATO, M. J.; LEMOS, O. F. de; XAVIER, L. P.; MAIA, J. G. S.; RAMOS, A. de R.; SETZER, W. N.; SILVA, J. K. do R. da.. |
| Bragantina and Cingapura are the main black pepper (Piper nigrum L.) cultivars and the Pará state is the largest producer in Brazil with about 90% of national production, representing the third largest production in the world. The infection of Fusarium solani f. sp. piperis, the causal agent of Fusarium disease in black pepper, was monitored on the cultivars Bragantina (susceptible) and Cingapura (tolerant), during 45 days? post infection (dpi). Gas Chromatography-Mass spectrometry (GC-MS) analysis of the volatile concentrates of both cultivars showed that the Bragantina responded with the production of higher contents of α-bisabolol at 21 dpi and a decrease of elemol, mostly at 30 dpi; while Cingapura displayed an decrease of δ-elemene... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Pimenta preta; Óleos essenciais; Doença; Fusarium. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1084204 |
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