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Science 8 January 1971:
Vol. 171. no. 3966, pp. 68 - 71
DOI: 10.1126/science.171.3966.68
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Articles

Pinocytosis and Membrane Dilation in Uranyl-Treated Plant Roots

Harry Wheeler 1 and Penelope Hanchey 2

1 Department of Pathology, University of Kentucky, Lexington 40506
2 Department of Botany and Plant Pathology, Colorado State University, Fort Collins 80521

Electron-dense crystals formed in plant roots exposed to uranyl acetate have been used to identify binding sites and to follow the pinocytotic uptake of uranyl in the oat rootcap. Before uranyl enters the protoplast, the plasmalemma is greatly dilated. After uranyl is sequestered in vacuoles, the tonoplast is similarly dilated.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Uptake and Binding of Uranyl Ions by Barley Roots.
A. W. Robards and M. E. Robb (1972)
Science 178, 980-982
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Science. ISSN 0036-8075 (print), 1095-9203 (online)