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Composition and antifungal activity of essential oils from Piper aduncum, Piper arboreum and Piper tuberculatum
(Soc Brasileira Quimica, 2006-05-01)
The composition of essential oils from leaves, stems and fruits of Piper aduncum, P arboreum and P. tuberculatum was examined by means of GC-MS and alltifungal assay. There was a predominance of monoterpenes in P aduncum ...
Prenylated benzoic acid derivatives from Piper aduncum L. and P. hostmannianum C. DC. (Piperaceae)
(ELSEVIER SCIENCE BV, 2009)
The bioactivity-guided fractionation of the crude extracts from leaves of Brazilian species Piper aduncum and Piper hostmannianum by means of bioautography using the fungi Cladosporium cladosporioides and C. sphaerospermum ...
Circadian rhythm of anti-fungal prenylated chromene in leaves of Piper aduncum
(Wiley-Blackwell, 2005-07-01)
Leaves of Piper aduncum accumulate the anti-fungal chromenes methyl 2,2-dimethyl-2H-1-chromene-6-carboxylate (1) and methyl 2,2-dimethyl-8-(3'-methyl-2'-butenyl)-2H-1-chromene-6-carboxylate (2). The enzymatic formation of ...
Intraspecific variability of dihydrochalcone, chromenes and benzoic acid derivatives in leaves of Piper aduncum L. (Piperaceae)
(ACADEMIC JOURNALS, 2009)
Chemical analysis carried out in leaves of 18 specimens of Piper aduncum L. (Piperaceae) occurring at Ripasa Reserve, Araraquara, SP, Brazil indicated two distinct populations when investigated over a period of 14 months ...
Citocalasinas produzidas por Xylaria sp., um fungo endofítico de Piper aduncum (piperaceae)
(Sociedade Brasileira de Química, 2010-01-01)
A chemical study on the EtOAc extract produced by Xylaria sp., an endophytic fungus from Piper aduncum, resulted in the isolation of a new cytochalasin 1, along with five known 19,20-epoxycytochalasin D (2), C (3), N (4), ...
Sesquiterpenes from Xylaria sp., an endophytic fungus associated with Piper aduncum (Piperaceae)
(Elsevier B.V., 2010-09-20)
Two new presilphiperfolane sesquiterpenes, 1 and 2, were isolated from the ethyl acetate extract of Xylaria sp., obtained from the leaves of Piper aduncum, along with two known eremophilane sesquiterpenes, phaseolinone (3) ...
Biosynthetic origin of the isoprene units in chromenes of Piper aduncum (Piperaceae)
(2007-12-01)
Metabolic studies involving the incorporation of [1-13C]-D- glucose into intact leaves of Piper aduncum (Piperaceae) have indicated that both the mevalonate (MVA) and the pyruvate-triose (MEP) non-mevalonate pathways are ...
A chromene and prenylated benzoic acid from Piper aduncum
(Elsevier B.V., 1999-08-01)
In addition to nerolidol, 2',6'-dihydroxy-4'-methoxydihydrochalcone, methyl 2,2-dimethyl-8-(3'-methyl-2'-butenyl)-2H-1-chromene-6-carboxylate, methyl 2,2-dimethyl-2H-1-chromene-6-carboxylate and methyl 8-hydroxy-2,2-dime ...
CYCLO-(TRP-PHE) DIKETOPIPERAZINES FROM THE ENDOPHYTIC FUNGUS Aspergillus versicolor ISOLATED FROM Piper aduncum#
(Soc Brasileira Quimica, 2017-02-01)
Six known compounds, three peptide derivatives: cyclo-(tryptophyl-phenylalanyl) (2), diketopiperazine dimer WIN 64821 (3) and 3-hydroxy-15H-tryptophenaline (4), one adenine derivative: 2-hydroxy-6-N-isopentenyl-adenine ...
Assessment of in vitro pharmacological effect of Neotropical Piperaceae in GABAergic bioassays in relation to plants traditionally used for folk illness by the Yanesha (Peru)
(Elsevier, 2014)
A previous pilot ethnobotanical and ethnopharmacological study with the Q‘echi׳ Maya identified the family Piperaceae, as an important taxonomic group traditionally used for the treatment of epileptic and culture-bound ...