TY - JOUR
T1 - FMRFamide-like immunoreactivity in the central nervous system of the cephalopod mollusc, Idiosepius notoides
AU - Wollesen, Tim
AU - Loesel, R.
AU - Wanninger, Andreas Wilhelm Georg
N1 - Conference Information: 11th Symposium of the International-Society-for-Invertebrate-Neurobiology
Tihan, HUNGARY, AUG 25-29, 2007
Int Soc Invertebrate Neurobiol.
KEYWORDS: Confocal laser scanning microscopy, immunohistochemistry, Loligo, lophotrochozoa, Sepia
PY - 2008
Y1 - 2008
N2 - For more than a century, cephalopod molluscs have been the subject of extensive studies with respect to their complex neuroanatomy and behavior. In comparison to gastropod molluscs surprisingly little work has been carried out on the characterization of neurons in the central nervous system (CNS) of cephalopods with respect to their neurotransmitter phenotypes. This study presents preliminary results on the distribution of FMRFamide-like immunoreactive neurons within the CNS of the pygmy squid Idiosepius notoides . Its gross neuroanatomy resembles that of other cephalopods. FMRFamide-like immunoreactivity was observed in most of the brain lobes. High abundance of FMRFamidergic perikarya was found in the dorsal basal, the central palliovisceral, and the olfactory lobes, whereas none were observed in the middle suboesophageal mass. Single individual perikarya are located within the optic lobes and the vertical lobes. Although certain immunohistochemical traits are shared with other cephalopods, such as a wall-like arrangement of FMRFamide-like immunoreactive cell somata within the dorsal basal lobe, others have so far only been found in Idiosepius . However, future investigations on other species are necessary in order to broaden our knowledge on a common recruitment of certain neurotransmitters in distinct brain lobes of the highly advanced brain of cephalopods.
AB - For more than a century, cephalopod molluscs have been the subject of extensive studies with respect to their complex neuroanatomy and behavior. In comparison to gastropod molluscs surprisingly little work has been carried out on the characterization of neurons in the central nervous system (CNS) of cephalopods with respect to their neurotransmitter phenotypes. This study presents preliminary results on the distribution of FMRFamide-like immunoreactive neurons within the CNS of the pygmy squid Idiosepius notoides . Its gross neuroanatomy resembles that of other cephalopods. FMRFamide-like immunoreactivity was observed in most of the brain lobes. High abundance of FMRFamidergic perikarya was found in the dorsal basal, the central palliovisceral, and the olfactory lobes, whereas none were observed in the middle suboesophageal mass. Single individual perikarya are located within the optic lobes and the vertical lobes. Although certain immunohistochemical traits are shared with other cephalopods, such as a wall-like arrangement of FMRFamide-like immunoreactive cell somata within the dorsal basal lobe, others have so far only been found in Idiosepius . However, future investigations on other species are necessary in order to broaden our knowledge on a common recruitment of certain neurotransmitters in distinct brain lobes of the highly advanced brain of cephalopods.
U2 - 10.1556/ABiol.59.2008.Suppl.18
DO - 10.1556/ABiol.59.2008.Suppl.18
M3 - Journal article
C2 - 18652382
SN - 0236-5383
VL - 59
SP - 111
EP - 116
JO - Acta Biologica Hungarica
JF - Acta Biologica Hungarica
IS - Suppl. 2
ER -