TY - JOUR
T1 - Metamorphosis of flight motor neurons in the moth Manduca sexta
AU - Casaday, George B.
AU - Camhi, Jeffrey M.
PY - 1976/9
Y1 - 1976/9
N2 - 1. In Manduca sexta a nerve, IIN1b, innervating the dorsal musculature of the larva, survives the metamorphosis and innervates the dorsal longitudinal muscles of the adult. That is, the adult nerve is a modified larval nerve (Figs. 1, 3). 2. Groups of motor neurons with their axons in IIN1b can be identified with the cobalt backfilling technique in the adult, and then located in the developing adult and larva (Fig. 4). 3. In the prothoracic ganglion, the axons of the motor neurons studied travel in a single bundle and send their dendrites into the same region of the neuropile. These dendrites increase in length during the last two-thirds of metamorphosis (Figs. 5, 6). 4. During metamorphosis, the prothoracic ganglion of Manduca sexta exhibits a pattern of allometric growth typical of insect postembryonic development. The volumes of cellular cortex and neuropile both increase, but the increase in neuropile is greater (Fig. 7). 5. The basic structure of the larval neuropile defined by its fiber tracts is maintained through metamorphosis (Figs. 9, 10, 11).
AB - 1. In Manduca sexta a nerve, IIN1b, innervating the dorsal musculature of the larva, survives the metamorphosis and innervates the dorsal longitudinal muscles of the adult. That is, the adult nerve is a modified larval nerve (Figs. 1, 3). 2. Groups of motor neurons with their axons in IIN1b can be identified with the cobalt backfilling technique in the adult, and then located in the developing adult and larva (Fig. 4). 3. In the prothoracic ganglion, the axons of the motor neurons studied travel in a single bundle and send their dendrites into the same region of the neuropile. These dendrites increase in length during the last two-thirds of metamorphosis (Figs. 5, 6). 4. During metamorphosis, the prothoracic ganglion of Manduca sexta exhibits a pattern of allometric growth typical of insect postembryonic development. The volumes of cellular cortex and neuropile both increase, but the increase in neuropile is greater (Fig. 7). 5. The basic structure of the larval neuropile defined by its fiber tracts is maintained through metamorphosis (Figs. 9, 10, 11).
UR - http://www.scopus.com/inward/record.url?scp=0000394575&partnerID=8YFLogxK
U2 - 10.1007/BF00606534
DO - 10.1007/BF00606534
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AN - SCOPUS:0000394575
SN - 0340-7594
VL - 112
SP - 143
EP - 158
JO - Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology
JF - Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology
IS - 2
ER -