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Distribution of autofluorescent cell bodies in the crayfish central nervous system

✍ Scribed by Aonuma, Hitoshi; Nagayama, Toshiki; Takahata, Masakazu

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
810 KB
Volume
275
Category
Article
ISSN
0022-104X

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✦ Synopsis

Some central neurons in the crayfish have autofluorescent cell bodies. The yellow fluorescence of cell bodies was induced in the whole-mount preparation by using blue-violet light from a high-pressure mercury lamp. From the first to the fifth abdominal ganglion, a pair of cell bodies fluoresced in each segmental ganglion. In the sixth abdominal ganglion, two pairs of fluorescent cell bodies were detected. A pair of cell bodies also fluoresced in the posterior (fourth and fifth) thoracic ganglia, while the probability of finding fluorescent cell bodies in the anterior (first to third) thoracic ganglia was very low. Intracellular staining revealed 1) that autofluorescent cells were motor giants (MoGs) and 2) their homologue in the abdominal and thoracic ganglia. This characteristic of autofluorescence provides the cue of ready identification of particular crayfish central neurons, which are one of the most essential neural components for intrinsic escape behavior. @

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