Pimpinella essential oils and isolated compounds were screened for their inhibitory activity against NF-kappaB mediated transcription in SW1353 cells. Twelve oils were effective in inhibiting NF-kappaB mediated transcription. Especially the roots of P. corymbosa, P. tragium and P. rhodanta showed potent activities with IC(50) values of 2, 3 and 6 microg/mL, respectively. Five pure compounds, 7 ...

Tissue cultures o f Pimpinella anisum and P. major were used to study the biosynthesis o f pseudoisoeugenols. The putative precursors were labelled with 13C with one exception that was labelled with i4C. The incorporation o f the label was controlled by 13C N M R and liquid scintil­ lation, respectively. The biosynthetic sequence found was L-phenylalanine, /-cinnamic acid, /?-coumaric acid, / 7...

ABSTRACT This study aims to report the occurrence of Heilipus draco in seeds Ocotea puberula, and describe main injuries caused effects on germination, as well parasitoid hymenopterans. To this end, fruits seven trees were selected, extreme south Atlantic Forest, Brazil. Fruit collection was carried out weekly middle third canopy, forming lots, from beginning fruit formation until total dehisce...

The plant species Pimpinella serbica (Vis.) Drude, endemic to West Balkans, belongs the genus L. (Apiaceae) according newer botanical classification. Initially, was described as Pancicia Vis. and long considered a monotypic genus. Previous phytochemical investigations of this were limited essential oil analysis by GC?MS method. This is first study that includes LC-DAD?MS screening extracts root...

Anisaldehyde characterized in the seeds of Pimpinella anisum L. (Umbelliferae), also known as aniseed, was found to inhibit the oxidation of L-3,4-dihydroxyphenylalanine (L-DOPA) by mushroom tyrosinase (EC 1.14.18.1) with an ID50 of 43 μg/mL (0.32 mM). The inhibition kinetics analyzed by a Lineweaver-Burk plot established anisaldehyde to be a noncompetitive inhibitor for this oxidation. On the ...

Summary The genus Ziziphus (Rhamnaceae) is revised for Borneo. 13 species are recognised using morphological evidence, including three new endemic species: cuspidata , Z. domatiata and puberula . Borneo therefore the island with greatest known diversity of species. area surrounding Mount Kinabalu particularly diverse, nine occurring in Ranau. Two varieties borneensis also described here, var. r...