Protein and alkaloid patterns of the floral nectar in some solanaceous species

András Kerchner, Judit Darók, Ivett Bacskay, A. Felinger, G. Jakab, Ágnes Farkas

Research output: Article

1 Citation (Scopus)

Abstract

The family Solanaceae includes several melliferous plants, which tend to produce copious amounts of nectar. Floral nectar is a chemically complex aqueous solution, dominated by sugars, but minor components such as amino acids, proteins, flavonoids and alkaloids are present as well. This study aimed at analysing the protein and alkaloid profile of the nectar in seven solanaceous species. Proteins were examined with SDS-PAGE and alkaloids were analyzed with HPLC. The investigation of protein profile revealed significant differences in nectar-protein patterns not only between different plant genera, but also between the three Nicotiana species investigated. SDS-PAGE suggested the presence of several Nectarin proteins with antimicrobial activity in Nicotiana species. The nectar of all tobacco species contained the alkaloid nicotine, N. tabacum having the highest nicotine content. The nectar of Brugmansia suaveolens, Datura stramonium, Hyoscyamus Niger and Lycium barbarum contained scopolamine, the highest content of which was measured in B. suaveolens. The alkaloid concentrations in the nectars of most solanaceous species investigated can cause deterrence in honeybees, and the nectar of N. rustica and N. tabacum can be considered toxic for honeybees.

Original languageEnglish
Pages (from-to)304-315
Number of pages12
JournalActa Biologica Hungarica
Volume66
Issue number3
DOIs
Publication statusPublished - szept. 1 2015

Fingerprint

Plant Nectar
alkaloid
nectar
Alkaloids
protein
Proteins
Solanaceae
Tobacco
honeybee
Nicotine
Polyacrylamide Gel Electrophoresis
Hyoscyamus
Lycium
Datura stramonium
Scopolamine Hydrobromide
antimicrobial activity
Poisons
tobacco
Flavonoids
Sugars

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Neurology
  • Medicine(all)

Cite this

Protein and alkaloid patterns of the floral nectar in some solanaceous species. / Kerchner, András; Darók, Judit; Bacskay, Ivett; Felinger, A.; Jakab, G.; Farkas, Ágnes.

In: Acta Biologica Hungarica, Vol. 66, No. 3, 01.09.2015, p. 304-315.

Research output: Article

Kerchner, András ; Darók, Judit ; Bacskay, Ivett ; Felinger, A. ; Jakab, G. ; Farkas, Ágnes. / Protein and alkaloid patterns of the floral nectar in some solanaceous species. In: Acta Biologica Hungarica. 2015 ; Vol. 66, No. 3. pp. 304-315.
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