Abstract
The influence of peripheral connectivity on the survival and differentiation of Phe-Met-Arg-Phe-amide-like immunoreactive (FLI) neurons in the ventral ganglion (VG) of the fly Sarcophaga bullata (Diptera: Sarcophagidae) was examined. Isolated larval VG were cultured in vivo for 13 days. The ganglia had undergone metamorphosis and resembled in situ metamorphosed VG in morphology and in the number and location of FLI neurons. The 3 pairs of large thoracic FLI neurons survived and became translocated to the midventral position extending immunoreactive axons into the dorsal neuropil. The 5 pairs of small FLI neurons also appeared de novo in the abdominal ganglion. However, the dorsal neural sheath of the cultured VG was devoid of FMRFamide-like immunoreactivity that was so characteristic of adult VG, which suggests the importance of peripheral connectivity for the metamorphic modification of FLI neurons.
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More From: International Journal of Insect Morphology and Embryology
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