AXOPLASMIC TRANSPORT IN THE CRAYFISH NERVE CORD | Zendy

Hugo L. Fernández | Zendy; Peter F. Davison | Zendy

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AXOPLASMIC TRANSPORT IN THE CRAYFISH NERVE CORD

Author(s) -

Hugo L. Fernández,

Peter F. Davison

Publication year - 1969

Publication title -

proceedings of the national academy of sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.011

H-Index - 771

eISSN - 1091-6490

pISSN - 0027-8424

DOI - 10.1073/pnas.64.2.512

Subject(s) - axoplasm , crayfish , axoplasmic transport , axon , spinal cord , anatomy , chemistry , cord , biophysics , biology , neuroscience , medicine , fishery , surgery

Axoplasmic proteins in the crayfish nerve cord were labeled by the incorporation of high specific activity (3)H-leucine that was injected into one of the abdominal ganglia. The labeled proteins moved caudad as a sharply defined peak at 1.1 mm/day. The level of radioactivity in the cord decreased slowly as the peak approached the tail. From the sharpness of the peak and the low decrement of label with distance it is deduced that the axoplasm is probably a gel, and some of it is not consumed as it is transported along the axon but reaches the terminal and, perhaps, the synaptic regions.

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