The innervation of locust salivary glands |
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| Authors: | Richard A Baines N Mark Tyrer |
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| Institution: | (1) Department of Biochemistry and Applied Molecular Biology, University of Manchester, Institute of Science and Technology, PO Box 88, M60 1QD Manchester, UK;(2) Present address: Department of Biology, University of Waterloo, N2L 3G1 Waterloo, Ontario, Canada |
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| Abstract: | Summary The salivary glands of the locustSchistocerca gregaria are influenced by at least two nerves. The suboesophageal salivary nerve (nerve 7b) is excitatory eliciting copious secretion when active. The prothoracic posterior transverse nerve is also capable of evoking increases in secretion, but only if the innervation from the salivary nerve is present. This is, in part, because activity in the transverse nerve influences the firing of the two suboesophageal salivary neurones that have their axons in the salivary nerve. The effect of the salivary nerve is mimicked by both 5-HT and dopamine, whereas the action of the transverse nerve on the glands is mimicked by the peptides YGGFMRFamide and YGGFLRFamide.Abbreviations
5-HT
5-hydroxytryptamine
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cAMP
cyclic adenosine monophosphate
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SN
salivary neurone
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HPLC
high performance liquid chromatography |
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