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One of several CV pores of the proter of a dividing cell. This is
presumably in an early stage of development as division is not yet
complete. The CV pore, as is typical, is encased in microtubules
(arrow) and a small CV is in place. Whether the CV is yet
functional at this stage is not known although the pore septum
(arrowhead) appears to be broken. The pore lies close to the
division furrow in the proter. new pm, new plasma membrane? EM
taken on 5/21/69 by M. Sage with Philips 300 TEM. Neg. 14,800X. Bar =
0.5µm.
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