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dcterms.accessRightsThere are no restrictions on access to this document. An internet release form signed by the author to display this document online is on file with Towson University Special Collections and Archives.
dc.contributor.advisorShields, Vonnie
dc.contributor.authorMartin, Timothy Lee
dc.contributor.departmentTowson University. Department of Biological Sciences
dc.date.accessioned2015-12-17T19:18:20Z
dc.date.available2015-12-17T19:18:20Z
dc.date.issued2011-10-19
dc.date.submitted2011-05
dc.description(M.S.) -- Towson University, 2011.
dc.description.abstractGypsy moth larvae are highly polyphagous feeders. They possess taste sensory organs, the medial and lateral galeal styloconic sensilla, which play an important role in host-plant selection through the detection of phytochemicals, such as alkaloids. The styloconic sensilla each house four taste receptor cells, including a sugar, salt, deterrent, and inositol cell. Using a single cell electrophysiological tip-recording method, my aim was to characterize the temporal firing patterns and sensitivities of the receptor cells within each sensillum when exposed to a selected phytochemicals. These results revealed that one or more cells responded to selected alkaloids, sugars, sugar alcohols, and salt. The deterrent cell exhibited a robust temporal firing pattern and displayed varying sensitivity to alkaloid stimulation. I also examined the effects of mixture interactions of these phytochemicals on food palatability. This study offers insights into the role of phytochemicals, especially alkaloids, in the taste physiology of this larval insect.
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dc.format.extentvi, 55 pages
dc.genretheses
dc.identifierdoi:10.13016/M2W696
dc.identifier.otherTSP2011TMartin
dc.identifier.urihttp://hdl.handle.net/11603/1925
dc.language.isoeng
dc.relation.ispartofTowson University Archives
dc.relation.ispartofTowson University Electronic Theses and Dissertations
dc.relation.ispartofTowson University Institutional Repository
dc.rightsCopyright protected, all rights reserved.
dc.titleElectrophysiological responses of taste-receptor cells to various feeding stimulants, deterrents, and their interactions in gypsy moth larvae, Lymantria dispar (L.)
dc.typeText


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