Back to Search Start Over

Guaianolides from the Aerial Parts of Centaurea Hololeuca

Authors :
Rosselli, Sergio
Maggio, Antonella Maria
Raccuglia, Rosa Angela
Simmonds, Monique S. J.
Arnold, Nelly A.
Bruno, Maurizio
Source :
Natural Product Communications; April 2006, Vol. 1 Issue: 4
Publication Year :
2006

Abstract

Seven guaianolides were isolated from the acetone extract of the aerial parts of Centaurea hololeuca Boiss. The antifeedant activity of the natural compounds (1–7) and of four chloro derivatives (8–11), synthesized from repin (1) and janerin (3) were tested against larvae of Spodoptera littoralis. Cebellin J (6) and chlorojanerin (11) showed significant antifeedant activity at 100 ppm, whereas at this concentration cebellin G (4) and 15-deschloro-15-hydroxychlorojanerin (7) stimulated feeding. Cebellin G (4) stimulated larvae of S. littoralis to feed at low concentration, but deterred feeding at high concentrations. The addition of chlorine to repin (1) resulted in an increase in antifeedant activity.

Details

Language :
English
ISSN :
1934578X and 15559475
Volume :
1
Issue :
4
Database :
Supplemental Index
Journal :
Natural Product Communications
Publication Type :
Periodical
Accession number :
ejs49639811
Full Text :
https://doi.org/10.1177/1934578X0600100403