P-28 The Effect of PTX in the Phonotactic Behavior of Female Cricket Gryllus Bimaculatus

Presenter Status

Associate Professor, Biology

Preferred Session

Poster Session

Start Date

4-11-2016 2:00 PM

End Date

4-11-2016 3:00 PM

Presentation Abstract

Nanoinjection of picrotoxin (PTX) into the prothoracic ganglion of female Gryllus bimaculatus narrows and sharpens significantly the range of model calling song (CS) syllable periods (SPs) that the female responds to phonotactically. This sharpened range includes the SPs produced in the CSs of conspecific males and emphasizes the most characteristic SPs of 35 and 40 ms. Following application of either juvenile hormone III (JHIII) or PTX to the ganglion, SP-selective responses by the prothoracic AN2 auditory interneurone are also significantly sharpened to a range that parallels the range of phonotactically attractive SPs and centers on SPs of 35 and 40 ms. These results support a phonotactically significant role for CS processing in the prothoracic ganglion involving the AN2 neurone and associated circuitry.

Acknowledgments

Andrews University office of Research and Creative Scholarship

University of Gottingen

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Nov 4th, 2:00 PM Nov 4th, 3:00 PM

P-28 The Effect of PTX in the Phonotactic Behavior of Female Cricket Gryllus Bimaculatus

Nanoinjection of picrotoxin (PTX) into the prothoracic ganglion of female Gryllus bimaculatus narrows and sharpens significantly the range of model calling song (CS) syllable periods (SPs) that the female responds to phonotactically. This sharpened range includes the SPs produced in the CSs of conspecific males and emphasizes the most characteristic SPs of 35 and 40 ms. Following application of either juvenile hormone III (JHIII) or PTX to the ganglion, SP-selective responses by the prothoracic AN2 auditory interneurone are also significantly sharpened to a range that parallels the range of phonotactically attractive SPs and centers on SPs of 35 and 40 ms. These results support a phonotactically significant role for CS processing in the prothoracic ganglion involving the AN2 neurone and associated circuitry.