Excitable Cells in Mimosa

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Science  20 Jul 1962:
Vol. 137, Issue 3525, pp. 226
DOI: 10.1126/science.137.3525.226


By inserting microelectrodes into cells of various tissues, it was shown that elongated parenchyma cells in the phloem and protoxylem, which have larger membrane potential than inexcitable cells of other types, generate action potentials with conduction. The electrical features of these cells are essentially similar to those of nerve and muscle cells.

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