On the structure and embryonic development of the giant fibre system of the squid Loligo vulgaris

1965 ◽  
Vol 67 (1) ◽  
pp. 77-85 ◽  
Author(s):  
Rainer Martin
Keyword(s):  
Embryonic Development ◽  
Giant Fibre ◽  
Loligo Vulgaris ◽  
Giant Fibre System

THE HISTOLOGY OF THE GIANT FIBRE SYSTEM IN THE ABDOMINAL VENTRAL NERVE CORD OF THE DESERT LOCUST

1970 ◽  
Vol 102 (9) ◽  
pp. 1163-1168 ◽  
Author(s):  
W. D. Seabrook
Keyword(s):  
Single Cell ◽  
Nerve Cord ◽  
Ventral Nerve Cord ◽  
Schistocerca Gregaria ◽  
Desert Locust ◽  
Giant Fibre ◽  
Metathoracic Ganglion ◽  
Giant Fibres ◽  
Giant Fibre System

AbstractSchistocerca gregaria possess four neurones of giant fibre proportions within the abdominal ventral nerve cord. These fibres arise from single cell bodies in the terminal ganglionic mass and pass without interruption to the metathoracic ganglion. Fibres become reduced in diameter when passing through a ganglion. Branching of the giant fibres occurs in abdominal ganglia 6 and 7.

Neurofilament phosphorylation and axon diameter in the squid giant fibre system

Neuroscience ◽  
1999 ◽  
Vol 88 (1) ◽  
pp. 327-336 ◽  
Author(s):  
R Martin ◽  
R Door ◽  
A Ziegler ◽  
W Warchol ◽  
J Hahn ◽  
...  
Keyword(s):  
Axon Diameter ◽  
Giant Fibre ◽  
Neurofilament Phosphorylation ◽  
Giant Fibre System

scholarly journals The Segmental Giant Neurone of the Hermit Crab Eupagurus Bernhardus

1986 ◽  
Vol 125 (1) ◽  
pp. 245-269 ◽  
Author(s):  
W. J. Heitler ◽  
K. Fraser
Keyword(s):  
Cell Body ◽  
Hermit Crab ◽  
Small Cell ◽  
Electrical Synapse ◽  
Giant Fibre ◽  
Anatomy And Physiology ◽  
Motor Neurones ◽  
Evolutionary Paths ◽  
Contralateral Motor ◽  
Giant Fibre System

The anatomy and physiology of the segmental giant (SG) neurone of the fourth abdominal ganglion of the hermit crab is described. The SG has an apparently blindending axon in the first root and a small cell body in the anterior ipsilateral ventral quadrant of the ganglion. There is a large ipsilateral neuropile arborization with prominent dendrites lined up along the course of the ipsilateral giant fibre (GF). The SG receives 1:1 input from the ipsilateral GF via an electrical synapse which is usually rectifying. SG activation produces a large EPSP in all ipsilateral and some contralateral fast flexor excitor (FF) motor neurones. The major input to FFs resulting from GF activation appears to be mediated via the SG. It also produces a small EPSP in ipsilateral and contralateral motor giant neurones. The properties of the hermit crab SG are compared to those of the crayfish SG, and the implications of the SG for the possible evolutionary paths of the giant fibre system are discussed.

THE SYNTHESIS OF CHOLINE PHOSPHOGLYCERIDES IN THE GIANT FIBRE SYSTEM OF THE SQUID

1979 ◽  
Vol 32 (2) ◽  
pp. 319-324 ◽  
Author(s):  
Marina Brunetti ◽  
A. Giuditta ◽  
G. Porcellati
Keyword(s):  
Giant Fibre ◽  
Choline Phosphoglycerides ◽  
Giant Fibre System

scholarly journals Synaptogenesis in the giant-fibre system of Drosophila: interaction of the giant fibre and its major motorneuronal target

Development ◽  
2000 ◽  
Vol 127 (23) ◽  
pp. 5203-5212
Author(s):  
K. Jacobs ◽  
M.G. Todman ◽  
M.J. Allen ◽  
J.A. Davies ◽  
J.P. Bacon
Keyword(s):  
Fluorescent Protein ◽  
Lucifer Yellow ◽  
Active Form ◽  
Dye Coupling ◽  
Electrical Synapses ◽  
Giant Fibre ◽  
High Resolution Data ◽  
After Puparium Formation ◽  
Puparium Formation ◽  
Giant Fibre System

The tergotrochanteral (jump) motorneuron is a major synaptic target of the Giant Fibre in Drosophila. These two neurons are major components of the fly's Giant-Fibre escape system. Our previous work has described the development of the Giant Fibre in early metamorphosis and the involvement of the shaking-B locus in the formation of its electrical synapses. In the present study, we have investigated the development of the tergotrochanteral motorneuron and its electrical synapses by transforming Drosophila with a Gal4 fusion construct containing sequences largely upstream of, but including, the shaking-B(lethal) promoter. This construct drives reporter gene expression in the tergotrochanteral motorneuron and some other neurons. Expression of green fluorescent protein in the motorneuron allows visualization of its cell body and its subsequent intracellular staining with Lucifer Yellow. These preparations provide high-resolution data on motorneuron morphogenesis during the first half of pupal development. Dye-coupling reveals onset of gap-junction formation between the tergotrochanteral motorneuron and other neurons of the Giant-Fibre System. The medial dendrite of the tergotrochanteral motorneuron becomes dye-coupled to the peripheral synapsing interneurons between 28 and 32 hours after puparium formation. Dye-coupling between tergotrochanteral motorneuron and Giant Fibre is first seen at 42 hours after puparium formation. All dye coupling is abolished in a shaking-B(neural) mutant. To investigate any interactions between the Giant Fibre and the tergotroachanteral motorneuron, we arrested the growth of the motorneuron's medial neurite by targeted expression of a constitutively active form of Dcdc42. This results in the Giant Fibre remaining stranded at the midline, unable to make its characteristic bend. We conclude that Giant Fibre morphogenesis normally relies on fasciculation with its major motorneuronal target.

Making an escape: Development and function of the Drosophila giant fibre system

2006 ◽  
Vol 17 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Marcus J. Allen ◽  
Tanja A. Godenschwege ◽  
Mark A. Tanouye ◽  
Pauline Phelan
Keyword(s):  
Giant Fibre ◽  
And Function ◽  
Giant Fibre System

Fine structure of synaptic contacts in the first order giant fibre system of the squid

1971 ◽  
Vol 112 (1) ◽  
pp. 85-96 ◽  
Author(s):  
Angela Gervasio ◽  
R. Martin ◽  
A. Miralto
Keyword(s):  
Fine Structure ◽  
Giant Fibre ◽  
Synaptic Contacts ◽  
First Order ◽  
Giant Fibre System

Cobalt-coupled neurons of a giant fibre system in Diptera

1983 ◽  
Vol 12 (6) ◽  
pp. 971-991 ◽  
Author(s):  
N. J. Strausfeld ◽  
U. K. Bassemir
Keyword(s):  
Giant Fibre ◽  
Giant Fibre System
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