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The role of octopamine in the regula...

Schulz, David John.

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The role of octopamine in the regulation of division of labor in honey bee colonies.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	The role of octopamine in the regulation of division of labor in honey bee colonies./
Author:	Schulz, David John.
Description:	106 p.
Notes:	Adviser: Gene E. Robinson.
Contained By:	Dissertation Abstracts International62-11B.
Subject:	Biology, Animal Physiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3030473
ISBN:	0493435964

The role of octopamine in the regulation of division of labor in honey bee colonies.
Schulz, David John.

The role of octopamine in the regulation of division of labor in honey bee colonies. - 106 p.

Adviser: Gene E. Robinson.

Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001.

This research begins to study how neuromodulators are involved in the regulation of division of labor in honey bees. Levels of dopamine, serotonin, and octopamine increase in the brains of bees as they become foragers, but foraging is most strongly associated with high levels of octopamine and serotonin in antennal lobes. This correlation between octopamine and serotonin in antennal lobes and behavior laid the groundwork for the experiments that follow.

ISBN: 0493435964Subjects--Topical Terms:

1017835
Biology, Animal Physiology.

The role of octopamine in the regulation of division of labor in honey bee colonies.
LDR:03305nam 2200337 a 45 001 932979
005 20110505
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020 $a 0493435964
035 $a (UnM)AAI3030473
035 $a AAI3030473
040 $a UnM $c UnM
100 1 $a Schulz, David John. $3 1256719
245 1 0 $a The role of octopamine in the regulation of division of labor in honey bee colonies.
300 $a 106 p.
500 $a Adviser: Gene E. Robinson.
500 $a Source: Dissertation Abstracts International, Volume: 62-11, Section: B, page: 4909.
502 $a Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001.
520 $a This research begins to study how neuromodulators are involved in the regulation of division of labor in honey bees. Levels of dopamine, serotonin, and octopamine increase in the brains of bees as they become foragers, but foraging is most strongly associated with high levels of octopamine and serotonin in antennal lobes. This correlation between octopamine and serotonin in antennal lobes and behavior laid the groundwork for the experiments that follow.
520 $a In Chapter 1, I made three predictions about levels of octopamine and serotonin in antennal lobes based on the hypothesis that these amines are involved in the regulation of division of labor. I predicted that levels of these amines would be high in foragers, regardless of whether they were actively foraging. Second, I predicted that amounts of octopamine and serotonin in antennal lobes increase prior to foraging. Finally, I predicted that biogenic amines would remain constant in the antennal lobes regardless of the amount of experience a forager accumulated. These three predictions were confirmed for octopamine, but not serotonin.
520 $a In Chapter 2, I treated bees with octopamine-containing sucrose solution. Treated bees were significantly more likely to forage than control bees. I also showed that the effects of octopamine treatment were relatively fast and effective only on bees already competent to forage. This suggests that octopamine acts as a neuromodulator to influence foraging, and does not cause developmental changes.
520 $a In Chapter 3, I treated bees with serotonin to investigate its influence on the initiation of foraging. Bees treated orally with serotonin and 5-hydroxytryptophan had forager-like brain levels of serotonin, but were no more likely to become foragers than control bees. This suggests that serotonin does not affect the initiation of foraging behavior in honey bees.
520 $a Finally, in Chapter 4 I investigated how octopamine in antennal lobes may be regulated. Because juvenile hormone acts over developmental time scales to affect foraging while octopamine acts over short-term scales, I investigated whether octopamine is downstream of juvenile hormone in the regulation of foraging. Results from this chapter suggest that octopamine acts downstream of juvenile hormone to affect the transition to foraging in honey bees.
590 $a School code: 0090.
650 4 $a Biology, Animal Physiology. $3 1017835
650 4 $a Biology, Entomology. $3 1018619
650 4 $a Biology, Neuroscience. $3 1017680
690 $a 0317
690 $a 0353
690 $a 0433
710 2 0 $a University of Illinois at Urbana-Champaign. $3 626646
773 0 $t Dissertation Abstracts International $g 62-11B.
790 $a 0090
790 1 0 $a Robinson, Gene E., $e advisor
791 $a Ph.D.
792 $a 2001
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3030473