• Publications
  • Influence
Determination of drug levels and the effect of diazepam on the growth of necrophagous flies of forensic importance in southeastern Brazil.
Larvae of Chrysomya albiceps (Wiedemann) and Chrysomya putoria (Wiedemann) (Diptera: Calliphoridae) were reared on tissues from rabbits administered twice the lethal dosage of diazepam in order toExpand
  • 96
  • 8
The role of nectar production, flower pigments and odour in the pollination of four species of Passiflora (Passifloraceae) in south-eastern Brazil
The pollination biology of four species of passionflower was studied in south-eastern Brazil, specifically the importance of chemical features of floral nectar, pigments and odours. All speciesExpand
  • 91
  • 8
Effects of pyrrolizidine alkaloids through different trophic levels
Pyrrolizidine alkaloids (PAs), mainly those with a 1,2-double bond in the necine base moiety (=1,2-dehydropyrrolizidines), constitute a class of well studied compounds with respect to their fluxExpand
  • 70
  • 5
Scopolamine in Brugmansia Suaveolens (Solanaceae): Defense, Allocation, Costs, and Induced Response
Brugmansia suaveolens (Solanaceae) contains tropane alkaloids (TAs), which can act as chemical defenses. Selective pressures might modulate the allocation of alkaloids within the plant, as postulatedExpand
  • 64
  • 4
Semiochemicals derived from pyrrolizidine alkaloids in male ithomiine butterflies (Lepidoptera: Nymphalidae: Ithomiinae)
Abstract Analysis of male hairpencil components of 54 species in 30 genera of Ithomiinae butterflies showed the presence of 13 volatile compounds formed by hydrolysis, oxidation, lactonization and/orExpand
  • 39
  • 4
  • PDF
Quinolizidine Alkaloids in Ormosia arborea Seeds Inhibit Predation But Not Hoarding by Agoutis (Dasyprocta leporina)
Quinolizidine alkaloids (QAs) are secondary compounds found in seeds of many species of plants, possibly protecting them against pathogens and seed predators. QAs were isolated from Ormosia arboreaExpand
  • 33
  • 4
  • PDF
The gut microbiota of insecticide-resistant insects houses insecticide-degrading bacteria: A potential source for biotechnological exploitation
The exploration of new niches for microorganisms capable of degrading recalcitrant molecules is still required. We hypothesized the gut microbiota associated with insect-resistant lines carryExpand
  • 41
  • 3
  • PDF
Sesquiterpene and polyacetylene profile of the Bidens pilosa complex (Asteraceae: Heliantheae) from Southeast of Brazil
The pantropical weed Bidens pilosa (Asteraceae) is a species with several taxonomic problems. Recently it has been shown to be a complex of different species. To shed light on this problem in Brazil,Expand
  • 36
  • 3
Tropane and pyrrolizidine alkaloids in the ithomiinesPlacidula euryanassa andMiraleria cymothoe (Lepidoptera: Nymphalidae)
SummaryLarvae of the ithomiine butterflyPlacidula euryanassa sequester tropane alkaloids (TAs) from the host plantBrugmansia suaveolens and pass them through the pupae to freshly emerged adults. WildExpand
  • 27
  • 3
Why do larvae of Utetheisa ornatrix penetrate and feed in pods of Crotalaria species? Larval performance vs. chemical and physical constraints
Larvae of Utetheisa ornatrix (L.)(Lepidoptera: Arctiidae) are found mainly inside unripe pods of several alkaloid‐bearing Crotalaria (Fabaceae) species. Although eggs are laid on the leaves, theExpand
  • 31
  • 3
  • PDF