| Title: | "Behavioral and neurosensory responses of the boll weevil,Anthonomus grandis Boh. (Coleoptera: Curculionidae), to fluorinated analogs of aldehyde components of its pheromone" |
| Author(s): | Dickens JC; Prestwich GD; Sun WC; |
| Address: | "Boll Weevil Research Unit, USDA, ARS, 39762, Mississippi, Mississippi State" |
| ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
| Abstract: | "Competitive field tests with alpha-fluorinated analogs of compounds III and IV (III-alpha-F and IV-alpha-F, respectively) of the boll weevil,Anthonomus grandis Boh., aggregation pheromone showed these compounds, when combined with the other pheromone components [(+/-)-I and II], to be as attractive as grandlure [(+)-I, II, and III+IV]. Dose-response curves constructed from electroantennograms of male boll weevils to serial stimulus loads of III, IV, III-alpha-F, IV-alpha-F, and the corresponding acyl fluorinated analogs (III-acyl-F and IV-acyl-F) showed the alpha-fiuorinated analogs to be as active as the pheromone components (threshold=0.1 mug), while the acyl fluorinated analogs had a 10-100 x higher threshold (=1-10 mug). Single-neuron recordings showed that IV neurons and II neurons (Dickens, 1990) responded to IV-alpha-F and III-alpha-F, respectively, while IV-acyl-F and III-acyl-F were inactive. Since a previous study showed compounds I, II, and IV to be essential for behavioral responses in the field, it seems likely that the activity of the alpha-fluorinated analogs observed here is due to the stimulation of IV neurons by IV-alpha-F as indicated in single neuron recordings" |
| Notes: | "PubMed-not-MEDLINEDickens, J C Prestwich, G D Sun, W C eng 1991/06/01 J Chem Ecol. 1991 Jun; 17(6):1007-20. doi: 10.1007/BF01402930" |
