« Previous AbstractDetermination of pharmaceutically related compounds by suppressed ion chromatography: III. Role of electrolytic suppressor design    Next AbstractExpression of pheromone receptor gene families during olfactory development in the mouse: expression of a V1 receptor in the main olfactory epithelium »

Arch Insect Biochem Physiol

Title:		"Combinative stimulation inactivates sex pheromone production in the silkworm moth, Bombyx mori"
Author(s):		Karube F; Kobayashi M;
Address:		"Laboratory of Insect Genetics and Bioscience, Faculty of Agriculture, Tokyo University, Bunkyo-ku, Tokyo, Japan. fuyuki@nagoya.riken.go.jp"
Journal Title:		Arch Insect Biochem Physiol
Year:		1999
Volume:		42
Issue:		2
Page Number:		111 - 118
DOI:		10.1002/(SICI)1520-6327(199910)42:2<111::AID-ARCH1>3.0.CO;2-N
ISSN/ISBN:		0739-4462 (Print) 0739-4462 (Linking)
Abstract:		"Mating results in a strong suppression of sex pheromone (bombykol) production in the female silkworm moth, Bombyx mori. The mechanical stimulation from the insertion of a penis, inflation of the bursa copulatrix (BC), or copulation with the sterile male whose penis was removed in order to prevent ejaculation (pr-male) induced only a partial decline in bombykol production. Artificial insemination stimulates oviposition of fertilized eggs as does normal mating. However, bombykol production did not decline in artificially inseminated females. When females were artificially inseminated before or after mating with pr-males, some females had a small amount of bombykol, similar to females mated with normal males, while other females had a large amount of bombykol similar to virgin females. The former usually laid fertilized eggs, while the latter laid only unfertilized eggs though semen filled their spermatophores and spermathecae. The mechanical stimulation caused by mating with a pr-male could be replaced by covering the abdominal tip with melted paraffin. Neither implantation of the BC obtained from mated females, nor injection of the spermatophore extract, into a female mated with a pr-male could inactivate bombykol production. Injection of hemolymph from a mated female into a virgin also failed to affect bombykol production These results indicate that a combination of both the tactile stimulation of the abdominal tip and the arrival of fertile spermatozoa in the vestibulum trigger a neural inactivation mechanism of bombykol production after mating"
Keywords:		"Animals Bombyx/*physiology Chromatography, High Pressure Liquid Fatty Alcohols/analysis/*metabolism Female Insemination, Artificial Male Oviposition/physiology Physical Stimulation Sex Attractants/analysis/*biosynthesis Sexual Behavior, Animal Spermatozoa;"
Notes:		"MedlineKarube, F Kobayashi, M eng 1999/09/30 Arch Insect Biochem Physiol. 1999 Oct; 42(2):111-8. doi: 10.1002/(SICI)1520-6327(199910)42:2<111::AID-ARCH1>3.0.CO; 2-N"