caa a22 4500 469082771 CHVBK 20180323132955.0 cr unu---uuuuu 170328e19920201xx s 000 0 eng 10.1007/BF00302958 doi (NATIONALLICENCE)springer-10.1007/BF00302958 Distribution and development of the serotonin-and RFamide-like immunoreactive neurons in the arrowworm, Paraspadella gotoi (Chaetognatha) [Elektronische Daten] [Taichiro Goto, Yajoi Katayama-Kumoi, Masaya Tohyama, Masao Yoshida] Summary: The distribution and development of serotonin-and RFamide-like immunoreactivities in the nervous system of Chaetognatha, Paraspadella gotoi, were examined in whole-mount preparations. In adults, a single serotonin-like immunoreactive (5HTLI) neuron and numerous RFamide-like immunoreactive (RFaLI) neurons were found in the central nervous system. Based on the structure of the fins, hooks, and eyes, seven postembryonic developmental stages were recognized. The most obvious features of the stages are: stage 1, newly hatched young; stage 2, elongation of a continuous lateral tail fin; stage 3, separation of the lateral and tail fins; stage 4, appearance of hooks; stage 5, pigmentation of eyes, stage 6, attachment by tail adhesive fins; stage 7, prey capture. Stage 1 did not show any immunoreactivity. The 5HTLI neuron first appeared at stage 4 and its axonal pathway became similar to the adult at stage 6. On the other hand, the RFaLI neurons appeared at stage 3 in the ventral ganglion. Some of their somata disappeared at stage 5 and the neuronal architecture resembled the adult at stage 7 although the RFaLI neurons in the cerebral ganglion were complete at the juvenile stage. Springer-Verlag, 1992 Immunocytochemistry nationallicence Serotonin nationallicence RFamide nationallicence Development nationallicence Paraspadella gotoi (Chaetognatha) nationallicence Goto Taichiro Deparment of Biology, Faculty of Education, Mie University, 514, Tsu, Mie, Japan aut Katayama-Kumoi Yajoi Department of Anatomy, Osaka University Medical School, Yamadaoka, 565, Suita, Osaka, Japan aut Tohyama Masaya Department of Anatomy, Osaka University Medical School, Yamadaoka, 565, Suita, Osaka, Japan aut Yoshida Masao Ushimado Marine Laboratory, Kashino, Ushimado, 701-43, Okayama, Japan aut Cell and Tissue Research Springer-Verlag 267/2(1992-02-01), 215-222 0302-766X 267:2<215 1992 267 441 https://doi.org/10.1007/BF00302958 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00302958 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Goto Taichiro Deparment of Biology, Faculty of Education, Mie University, 514, Tsu, Mie, Japan aut NATIONALLICENCE 700 1- Katayama-Kumoi Yajoi Department of Anatomy, Osaka University Medical School, Yamadaoka, 565, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Tohyama Masaya Department of Anatomy, Osaka University Medical School, Yamadaoka, 565, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Yoshida Masao Ushimado Marine Laboratory, Kashino, Ushimado, 701-43, Okayama, Japan aut NATIONALLICENCE 773 0- Cell and Tissue Research Springer-Verlag 267/2(1992-02-01), 215-222 0302-766X 267:2<215 1992 267 441 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer