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Olfactory adaptation in Drosophila m...

Wuttke, Mark Stephen.

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Olfactory adaptation in Drosophila melanogaster larvae.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Olfactory adaptation in Drosophila melanogaster larvae./
Author:	Wuttke, Mark Stephen.
Description:	62 p.
Notes:	Source: Dissertation Abstracts International, Volume: 60-03, Section: B, page: 0944.
Contained By:	Dissertation Abstracts International60-03B.
Subject:	Biology, Genetics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9921213
ISBN:	9780599204423

Olfactory adaptation in Drosophila melanogaster larvae.
Wuttke, Mark Stephen.

Olfactory adaptation in Drosophila melanogaster larvae. - 62 p.

Source: Dissertation Abstracts International, Volume: 60-03, Section: B, page: 0944.

Thesis (Ph.D.)--Temple University, 1999.

The olfactory system of Drosophila melanogaster shows exquisite sensitivity and broad dynamic range in response to a variety of stimuli at both the larval and adult stages. To accommodate both high sensitivity as well as the ability to respond to a broad range of odorant concentrations, it is necessary for an organism to possess some means of modulating the gain of the system. This phenomenon is known as adaptation. I have shown that Drosophila larvae adapt to three odorants in a behavioral paradigm. Adaptation occurs in all three larval developmental stages. Larval olfactory adaptation is both concentration- and dose-dependent. The kinetics of recovery from olfactory adaptation, which are also dose-dependent, are described. Drosophila larvae are also capable of cross-adaptation, in that exposure to one odorant can reduce the behavioral sensitivity to another odorant. Under certain conditions it is also possible to elicit adaptation without cross-adaptation. Genetic and immunohistochemical analysis reveals that the transient receptor potential (trp) gene product (TRP), which has been implicated in olfactory and visual adaptation in adult flies, is not involved in larval olfactory adaptation or the recovery kinetics of olfactory adaptation. Evidence is also presented suggesting that trp is not involved in a larval visually-mediated behavior.

ISBN: 9780599204423Subjects--Topical Terms:

1017730
Biology, Genetics.

Olfactory adaptation in Drosophila melanogaster larvae.
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245 1 0 $a Olfactory adaptation in Drosophila melanogaster larvae.
300 $a 62 p.
500 $a Source: Dissertation Abstracts International, Volume: 60-03, Section: B, page: 0944.
500 $a Major Adviser: Laurie Tompkins.
502 $a Thesis (Ph.D.)--Temple University, 1999.
520 $a The olfactory system of Drosophila melanogaster shows exquisite sensitivity and broad dynamic range in response to a variety of stimuli at both the larval and adult stages. To accommodate both high sensitivity as well as the ability to respond to a broad range of odorant concentrations, it is necessary for an organism to possess some means of modulating the gain of the system. This phenomenon is known as adaptation. I have shown that Drosophila larvae adapt to three odorants in a behavioral paradigm. Adaptation occurs in all three larval developmental stages. Larval olfactory adaptation is both concentration- and dose-dependent. The kinetics of recovery from olfactory adaptation, which are also dose-dependent, are described. Drosophila larvae are also capable of cross-adaptation, in that exposure to one odorant can reduce the behavioral sensitivity to another odorant. Under certain conditions it is also possible to elicit adaptation without cross-adaptation. Genetic and immunohistochemical analysis reveals that the transient receptor potential (trp) gene product (TRP), which has been implicated in olfactory and visual adaptation in adult flies, is not involved in larval olfactory adaptation or the recovery kinetics of olfactory adaptation. Evidence is also presented suggesting that trp is not involved in a larval visually-mediated behavior.
590 $a School code: 0225.
650 4 $a Biology, Genetics. $3 1017730
650 4 $a Biology, General. $3 1018625
650 4 $a Biology, Ecology. $3 1017726
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710 2 0 $a Temple University. $3 959342
773 0 $t Dissertation Abstracts International $g 60-03B.
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791 $a Ph.D.
792 $a 1999
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