The Effect of Inhibitors on Callose Formation in the Sieve Tubes of Saxifraga sarmentosa L. |
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| Authors: | QURESHI, F. A. SPANNER, D. C. |
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| Affiliation: | Department of Botany, Bedford College, University of London NW1 4NS |
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| Abstract: | Electron-microscope studies on stolons undergoing transportinhibition under nitrogen, HCN, and DNP treatment show no evidenceof callose-blockage of the sieve plates. Inhibition must thereforebe interpreted in terms of interruption of the sieve-tube energysupply; this weights the evidence in favour of theories of activemass flow such as those invoking electro-osmosis or proteincontractility. |
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