Sökning: onr:"swepub:oai:lup.lub.lu.se:d2b543f2-feb2-4fa3-b798-8b588bdfe8ea" >
Central nervous pro...
Central nervous processing of sex pheromones in two strains of the European corn borer Ostrinia nubilalis (Lepidoptera : Pyralidae)
-
- Anton, Sylvia (författare)
- Lund University,Lunds universitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science
-
- Löfstedt, Christer (författare)
- Lund University,Lunds universitet,Funktionell zoologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Functional zoology,Department of Biology,Faculty of Science
-
- Hansson, Bill S. (författare)
- Lund University
-
(creator_code:org_t)
- 1997
- 1997
- Engelska 15 s.
-
Ingår i: Journal of Experimental Biology. - 0022-0949. ; 200:7, s. 1073-1087
- Relaterad länk:
-
https://lup.lub.lu.s...
Abstract
Ämnesord
Stäng
- Antennal lobe neurones were investigated in the pyralid moth Ostrinia nubilalis using intracellular recording and staining techniques. Response characteristics of antennal lobe neurones from males in the so-called E and Z strains, in F1 hybrids and in parental backcrosses were studied. The antennal lobe of a male O. nubilalis comprises approximately 30 ordinary glomeruli and three enlarged glomeruli making up the macroglomerular complex (MGC). Receptor neurones enter the antennal lobe via the antennal nerve and arborize in single glomeruli. Intracellularly stained, pheromone-responding projection neurones in both parental strains arborized in different glomeruli within the MGC, irrespective of their response characteristics. Neurones were grouped according to their specificity to single pheromone components and to pheromone blends. Component-specific, blend-specific and generalist neurones were found. Specificity only occurred at low stimulus concentrations and disappeared as concentrations increased. Although all neuronal types were present in both pheromone strains and crossings, differences in abundance and sensitivity were found. In the parental strains, neurones responding to the major pheromone component and to the respective strain-specific blend were more abundant than neurones responding to the minor component and the blend produced by the other strain. Neurones investigated in ZxE hybrids responded similarly to those of E-strain males, whereas neurones in EZxZ paternal backcrosses responded similarly to those of Z males. In the hybrids and paternal backcrosses, hybrid-blend-specific neurones were present that were not found in parental-strain males.
Ämnesord
- NATURVETENSKAP -- Biologi -- Annan biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Other Biological Topics (hsv//eng)
Nyckelord
- antennal lobe
- electrophysiology
- European corn borer
- moth
- neuroanatomy
- olfaction
- Ostrinia nubilalis
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas