scholarly journals Octopamine-immunoreactive neurons in the brain and subesophageal ganglion of the hawkmothManduca sexta

2005 ◽  
Vol 488 (3) ◽  
pp. 255-268 ◽  
Author(s):  
Andrew M. Dacks ◽  
Thomas A. Christensen ◽  
Hans-J. Agricola ◽  
Leo Wollweber ◽  
John G. Hildebrand
Keyword(s):  
Subesophageal Ganglion ◽  
The Brain

NEUROHORMONAL INDUCTION OF PHEROMONE BIOSYNTHESIS BY HELIOTHIS ZEA (BODDIE) DURING THE PHOTOPHASE

1989 ◽  
Vol 121 (1) ◽  
pp. 43-46 ◽  
Author(s):  
P.E.A. Teal ◽  
J.H. Tumlinson
Keyword(s):  
Heliothis Zea ◽  
Pheromone Biosynthesis ◽  
Subesophageal Ganglion ◽  
Pheromone Production ◽  
The Brain ◽  
Ratio Of Components

AbstractFemales of Heliothis zea (Boddie) were stimulated to produce pheromone by injection of brain – subesophageal ganglion homogenates. Females injected with this homogenate during the photophase produced the same amount of pheromone and same ratio of components as neck-ligated females injected during the peak of pheromone production. Decapitated females and isolated abdomens also produced pheromone when injected with the brain – subesophageal ganglion homogenate during the photophase. These data show that the neurohormone which stimulates pheromone production is not degraded by enzymes during the photophase and that pheromone is not metabolized at a greater rate during periods when the insect is not producing pheromones.

scholarly journals Octopamine-like immunoreactivity in the brain and subesophageal ganglion of the honeybee

1994 ◽  
Vol 348 (4) ◽  
pp. 583-595 ◽  
Author(s):  
Sabine Kreissl ◽  
Stefan Eichmüller ◽  
Gerd Bicker ◽  
Jürgen Rapus ◽  
Manfred Eckert
Keyword(s):  
Subesophageal Ganglion ◽  
The Brain

INDUCTION OF PHEROMONE PRODUCTION IN FEMALES OF HELIOTHIS VIRESCENS (F.) AND H. SUBFLEXA (GN.) (LEPIDOPTERA: NOCTUIDAE) DURING THE PHOTOPHASE

1993 ◽  
Vol 125 (2) ◽  
pp. 355-366 ◽  
Author(s):  
P.E.A. Teal ◽  
A. Oostendorp ◽  
J.H. Tumlinson
Keyword(s):  
Heliothis Virescens ◽  
Optimal Dose ◽  
Pheromone Biosynthesis ◽  
Subesophageal Ganglion ◽  
Pheromone Production ◽  
Synthetic Pheromone ◽  
Lepidoptera Noctuidae ◽  
The Brain ◽  
Stimulation Of

AbstractProduction of sex pheromone was induced during the photophase, a time during which pheromone is not normally produced, in females of Heliothis virescens (F.) and H. subflexa (Gn.) by injection of homogenates and partially purified extracts of the brain – subesophageal ganglion complex of conspecific females or H. zea (Boddie) females or synthetic pheromone biosynthesis activating neuropeptide (PBAN). The amount of (Z)-11-hexadecenal, the major component of the pheromone of both species, increased during the first 60 min after injection of PBAN then leveled off and declined in H. virescens. In H. subflexa, the amount of this aldehyde increased during the first 120 min and declined after 240 min. Studies indicated that extracts of the brain – subesophageal ganglion complex that did not contain neurally produced biogenic amines induced production of as much pheromone as did homogenates containing these compounds. Dose-response studies indicated that the optimal dose of synthetic PBAN for induction of pheromone during a 60-min incubation was 5.0 pmol. In vivo maintenance of pheromone production required continuous stimulation of the pheromone gland.

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