caa a22 4500 469082232 CHVBK 20180323132953.0 cr unu---uuuuu 170328e19920501xx s 000 0 eng 10.1007/BF00318803 doi (NATIONALLICENCE)springer-10.1007/BF00318803 Structure and development of the larval central complex in a holometabolous insect, the beetle Tenebrio molitor [Elektronische Daten] [Rainer Wegerhoff, Olaf Breidbach] Summary: The neuroarchitecture of the central complex, a prominent neuropil in the midbrain of the holometabolan, Tenebrio molitor, is described throughout larval development. The analysis is based on classical silver impregnations and on fate-mapping of identified neurons using antisera against serotonin and FMRF-amide. In T. molitor, the central body is present in the first larval instar, and is formed by side branches of contralaterally projecting neurons. Glial cells surround eight neuropil compartments in the first larval instar. These subdivisions in the organization of the fan-shaped body are maintained throughout development. Intrinsic interneurons are found from the 5th larval instar onwards. In the last larval stage, the central complex consists of the fan-shaped body, the protocerebral bridge, and the anlage of the ellipsoid body. The cellular architecture of the fan-shaped body of the last larval instar resembles the basic structural characteristics of the adult. Serotonin-immunoreactive neurons and FMRF-amide immunoreactive neurons in the midbrain of the first larval instar show the basic structural features of the respective imaginal cells. The structural organizations of larval and adult midbrain are compared. Springer-Verlag, 1992 Neuronal development nationallicence Neuropil nationallicence Immunohistochemistry nationallicence Serotonin nationallicence FMRF-amide nationallicence Brain, invertebrate nationallicence Protocerebrum nationallicence Tenebrio molitor (Insecta) nationallicence a : Anterior nationallicence AGT : antenno-glomerular tract nationallicence aL : α-lobus nationallicence AL : antennal lobe nationallicence AP : anterior protocerebrum nationallicence bL : β-lobe nationallicence BSN : bilateral symmetrical nationallicence FMRF : amide-immunopositive neurons nationallicence CA : calyx nationallicence CL1-CL4 : serotonin-immunopositive neurons cluster 1-4 nationallicence d : dorsal nationallicence DAB : diaminobenzidine tetrahydrochloride nationallicence DC : dorsal commissure nationallicence DCFB : dorsal commissure of the fan-shaped body nationallicence DHT : dorsal horizontal tract nationallicence DLTR : dorsal lateral triangle nationallicence DMLP : dorsal medial lateral protocerebrum nationallicence DN : serotonin-immunopositive deuterocerebral neuron nationallicence EB : ellipsoid body nationallicence en1, en2 : extrinsic neurons connecting two FB-subcompartments nationallicence esn : extrinsic subcompartmental neuron nationallicence l : lateral nationallicence FB : fan-shaped body nationallicence FN : serotonin-immunopositive fan-shaped neuron nationallicence fs1, fs2 : fanshaped neurons of type 1 and 2 nationallicence GC : great commissure nationallicence HF : horizontal fibres nationallicence in : intrinsic neuron connecting two FB-subcompartments nationallicence isn : intrinsic subcompartmental neuron nationallicence IT : isthmus tract nationallicence LF : large-field neurons nationallicence LFASC : lateral fascicle nationallicence LMFASC : lateral median fascicle nationallicence MB : median bundles nationallicence MLP : medial lateral protocerebrum nationallicence p : posterior nationallicence P : pedunculus nationallicence PB : protocerebral bridge nationallicence pb-fb : protocerebral bridge-fan-shaped body connection nationallicence PBS : phosphate-buffered saline nationallicence PDC : posterio-dorsal commissure nationallicence PTX : phosphate-buffered saline containing Triton X-100 nationallicence SU : suboesophageal ganglion nationallicence SVT : small ventral triangles nationallicence TN 1,2 : tritocerebral serotonin-immunoreactive neuron 1,2 nationallicence v : ventral nationallicence VB : ventral body nationallicence VBC : ventral body commissure nationallicence VCBC : ventral central body commissure nationallicence VCFB : ventral commissure of the fan-shaped body nationallicence Wegerhoff Rainer Institut für Angewandte Zoologie, An der Immenburg 1, W-5300, Bonn 1, Germany aut Breidbach Olaf Institut für Angewandte Zoologie, An der Immenburg 1, W-5300, Bonn 1, Germany aut Cell and Tissue Research Springer-Verlag 268/2(1992-05-01), 341-358 0302-766X 268:2<341 1992 268 441 https://doi.org/10.1007/BF00318803 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00318803 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wegerhoff Rainer Institut für Angewandte Zoologie, An der Immenburg 1, W-5300, Bonn 1, Germany aut NATIONALLICENCE 700 1- Breidbach Olaf Institut für Angewandte Zoologie, An der Immenburg 1, W-5300, Bonn 1, Germany aut NATIONALLICENCE 773 0- Cell and Tissue Research Springer-Verlag 268/2(1992-05-01), 341-358 0302-766X 268:2<341 1992 268 441 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer