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Constituents of the essential oil of Piper aduncum L. growing wild in the Amazon region
The essential oils of eight samples of Piper aduncum L., collected at different localities of the Amazon region, were analysed by GC–MS. The major component identified in all samples was dillapioleExpand
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Essential oils of Lippia alba (Mill.) N. E. Br growing wild in the Brazilian Amazon
The essential oils of aerial parts of specimens of Lippia alba (Mill.) N. E. Br were analysed by GC–MS. The plants were collected at three municipalities of Para State, Brazil, and their oils shownExpand
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Essential oils of the leaves and stems of four Psidium spp.
The essential oils of the leaves and fine stems of Psidium acutangulum, P. striatulum, P. guineense and P. guajava were obtained by hydrodistillation and analysed by GC–MS. The main compoundsExpand
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Chemical variation in the essential oils of Hyptis crenata Pohl ex Benth.
Essential oils from Hyptis crenata growing wild in the Amazon Region were submitted to hydrodistillation and analysed by GC–MS. The main compounds identified in the oil of specimen A, collected atExpand
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The essential oils of Peperomia pellucida Kunth and P. circinnata Link var. circinnata
The essential oils of Peperomia pellucida and Peperomia circinnata var. circinnata were investigated by GC–MS. The main components identified in the oil of P. pellucida were dillapiole (39.7%) andExpand
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Essential Oils of Siparuna guianensis Aubl.
Abstract The essential oils of three types of Siparuna guianensis collected at different places of the Amazon were analyzed by GC/MS. The main constituents found in the oil of the sample collected atExpand
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Chemical Variation in the Essential Oils of Hyptis mutabilis (Rich.) Briq.
Abstract The volatiles from leaves and fine stems of Hyptis mutabilis collected in the Amazon region were obtained by hydrodistillation and analyzed by GC/MS. The major components identified in theExpand
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The essential oil of Pectis elongata Kunth occurring in north Brazil
The oils of Pectis elongata were hydrodistilled and analysed by GC and GC–MS. The major constituents identified in the oils of fresh and dried samples of a specimen collected in Para state, Brazil,Expand
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Ação do óleo essencial de Piper aduncum L. utilizado como fungicida natural no tratamento de sementes de Vigna unguiculata (L.) Walp.
Pimenta-de-macaco (Piper aduncum L.) e uma planta aromatica da familia Piperaceae, nativa da regiao Amazonica, com alto teor de oleo essencial (2,5 a 4%), rico em dilapiol. O dilapiol e um eterExpand
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Differential responses produced by silicon (Si) on photosynthetic pigments in two pepper cultivars exposed to water deficiency
This study aims to (i) investigate the silicon action on photosynthetic pigments, as well as (ii) to determine the optimal Si level for each cultivar, and (iii) establish a possible interference onExpand
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