Biogenic amines in protocerebral A2 neurosecretory neurons of Lymantria dispar L. (Lepidoptera : Lymantridae) – response to trophic stress
2011
Perić-Mataruga, V., Institute for Biological Research Siniša Stanković, Belgrade (Serbia) | Mrdaković, M., Institute for Biological Research Siniša Stanković, Belgrade (Serbia) | Vlahović, M., Institute for Biological Research Siniša Stanković, Belgrade (Serbia) | Ilijin, L., Institute for Biological Research Siniša Stanković, Belgrade (Serbia) | Janković-Tomanić, M., Institute for Biological Research Siniša Stanković, Belgrade (Serbia) | Mirčić, D., State University of Novi Pazar, Novi Pazar (Serbia). Department of Biochemical and Medical Sciences | Nenadović, V., Institute for Biological Research Siniša Stanković, Belgrade (Serbia)
The number, morphometric parameters and amount of aminergic neurosecretory product of protocerebral A2 neurosecretory neurons were investigated in the fifth instar of Lymantria dispar caterpillars, following a suitable or unsuitable trophic regime. Caterpillars originated from two populations (Quercus rubra or Robinia pseudoacacia forest) and were differently adapted to trophic stress, i.e. feeding on locust tree leaves – unsuitable host plant. The number of neurosecretory neurons was higher in the caterpillars originated from Robinia population than in Quercus population, regardless of feeding. A2 neurosecretory neurons, nuclei and their nucleoli were larger in caterpillars fed with unsuitable leaves in both populations. There was more aminergic product in the A2 neurosecretory neurons of the caterpillars fed with unsuitable leaves independently of population origin.
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