The main objective of the present study was to assess effects sulfur (S) nutrition on plant growth, overall quality, secondary metabolites, and antibacterial radical scavenging activities hydroponically grown lettuce cultivars. Three cultivars, namely, Pazmanea RZ (green butterhead, V1), Hawking multi-leaf lettuce, V2), Barlach (red multi-leaf, V3) were subjected two S-treatments in form magnes...

The sesquiterpene lactones lychnopholide and eremantholide C were isolated from Lychnophora trichocarpha Spreng. (Asteraceae), which is a plant species native to the Brazilian Savannah or Cerrado and popularly known as arnica. Sesquiterpene lactones are known to present a variety of biological activities including antitumor activity. The present paper reports on the evaluation of the in vitro a...

In the endeavor to obtain new antitrypanosomal agents, particularly sesquiterpene lactones, from Kenyan plants of the family Asteraceae, Vernonia cinerascens Sch. Bip. was investigated. Bioactivity-guided fractionation and isolation in conjunction with LC/MS-based dereplication has led to the identification of vernodalol (1) and isolation of vernodalin (2), 11β,13-dihydrovernodalin (3), 11β,13-...