« Previous AbstractDefoliation in Perennial Plants: Predictable and Surprising Results in Senna spp    Next AbstractMOLMOL: a program for display and analysis of macromolecular structures »

Chemoecology

Title:		Aggregation pheromone compounds of the black larder beetle Dermestes haemorrhoidalis Kuster (Coleoptera: Dermestidae)
Author(s):		Korada RR; Griepink FC;
Address:
Journal Title:		Chemoecology
Year:		2009
Volume:		20090707
Issue:		3
Page Number:		177 - 184
DOI:		10.1007/s00049-009-0020-z
ISSN/ISBN:		0937-7409 (Print) 1423-0445 (Electronic) 0937-7409 (Linking)
Abstract:		"Gas chromatography with simultaneous flame ionisation and electroantennographic detection (GC-EAD) and gas chromatography with mass spectrometry analysis (GC-MS) of abdominal extracts of adult male Dermestes haemorrhoidalis Kuster (Coleoptera: Dermestidae) revealed the presence of electrophysiologically and behaviourally active compounds to its conspecific males and females. Isopropyl dodecanoate (3), isopropyl (Z)-9-tetradecenoate (5), isopropyl tetradecanoate (6), isopropyl (Z)-9-hexadecenoate (7) and isopropyl hexadecanoate (8) were detected in male abdominal extracts only. Analysis of collected male headspace volatiles revealed the presence of six EAD-active compounds (3), (5), (6) and isopropyl tridecanoate (4) plus two unidentified compounds (1) and (9). Synthetic compounds (3), (4), (5), (6) and (7) showed EAD activity with antennae of both sexes in contrast to synthetic (8) which showed EAD activity with female antennae only. Male and female antennae of D.haemorrhoidalis reacted with high receptor potentials to isopropyl (Z)-9-dodecenoate (2), although this compound itself was detected in neither male nor female abdominal extracts or headspace volatiles. Petri dish bioassays indicated that male abdominal extracts and compounds (2), (3), (5) and (6) aroused and attracted conspecific male and female beetles significantly (P < 0.05) compared to female extracts. These results suggested the presence of a male-produced aggregation pheromone in D. haemorrhoidalis. Field assays with any of the described compounds, however, did not result in attraction of this beetle in significant numbers"
Keywords:
Notes:		"PubMed-not-MEDLINEKorada, Rajasekhara Rao Griepink, Frans C eng Switzerland 2009/09/22 Chemoecology. 2009 Sep; 19(3):177-184. doi: 10.1007/s00049-009-0020-z. Epub 2009 Jul 7"