TY - JOUR
T1 - Ontogeny of electroantennogram responses in the moth, Manduca sexta
AU - Schweitzer, Erik S.
AU - Sanes, Joshua R.
AU - Hildebrand, John G.
N1 - Funding Information:
Acknowledgements-We wish to thank W. DRAGUN, S. JEWETT,J. LAFRATTA,M . LAFRATTA,L . NAKELL, and S. Wr~so~fo r their assistancea, nd Dr. C. M. WILLIAMSf or supplying~ anduca eggs. We are grateful to Dr. KARL DAHM for supplyingu s with sampleso f partially purified Manduca sex-pheromoneT.h is researchw as supportedb y USPHS Grant R01 NS-11010a, n Alfred P. Sloan Foun-dationR esearchF ellowshipt o J.H., an EstablishedIn vesti-gatorshipo f the AmericanH eart Associationt o J.H., and a grantf rom the Milton Fund of Harvard University.J .S. was a predoctoralt rainees upportedb y USPHS Research Training Grant MH 07084.
PY - 1976
Y1 - 1976
N2 - The antennae of the moth, Manduca sexta, and the sensilla and sensory neurons they contain, develop during metamorphosis from pupa to adult. To determine when, during their development, antennae become capable of generating electrical responses to various stimuli, we recorded the electroantennogram (EAG), believed to be the summed extracellular record of receptor potentials, from developing and mature antennae. Antennae from male and female moths are similarly responsive to trans-2-hexenal, while only males respond to Manduca sex pheromone; these two odorants presumably stimulate separate receptors. Mechanical stimulation also elicits and EAG response. EAG responses to olfactory and mechanical stimuli are detectable several days before eclosion but not until the neurons are morphologically and biochemically quite mature. Responses increase in magnitude until the end of metamorphosis and then change little during the first 3 days after emergence of the adult. Responses to different stimuli do not develop synchronously.
AB - The antennae of the moth, Manduca sexta, and the sensilla and sensory neurons they contain, develop during metamorphosis from pupa to adult. To determine when, during their development, antennae become capable of generating electrical responses to various stimuli, we recorded the electroantennogram (EAG), believed to be the summed extracellular record of receptor potentials, from developing and mature antennae. Antennae from male and female moths are similarly responsive to trans-2-hexenal, while only males respond to Manduca sex pheromone; these two odorants presumably stimulate separate receptors. Mechanical stimulation also elicits and EAG response. EAG responses to olfactory and mechanical stimuli are detectable several days before eclosion but not until the neurons are morphologically and biochemically quite mature. Responses increase in magnitude until the end of metamorphosis and then change little during the first 3 days after emergence of the adult. Responses to different stimuli do not develop synchronously.
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U2 - 10.1016/0022-1910(76)90078-0
DO - 10.1016/0022-1910(76)90078-0
M3 - Article
C2 - 947988
AN - SCOPUS:0016910542
SN - 0022-1910
VL - 22
SP - 955
EP - 960
JO - Journal of Insect Physiology
JF - Journal of Insect Physiology
IS - 7
ER -