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Science 17 June 1983:
Vol. 220. no. 4603, pp. 1297 - 1300
DOI: 10.1126/science.220.4603.1297
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Articles

Basal Localization of the Presumptive Auxin Transport Carrier in Pea Stem Cells

MARK JACOBS 1 and SCOTT F. GILBERT 1

1 Department of Biology, Swarthmore College, Swarthmore, Pennsylvania 19081

By means of an indirect immunofluorescence technique with the use of monoclonal antibodies, the location of the presumptive auxin transport carrier of pea stem tissue was identified in the plasma membranes at the basal ends of parenchyma cells sheathing the vascular bundles. The results represent what is believed to be the first direct evidence for the hypothesized basal efflux carrier conferring polarity to auxin transport in plant stems.

Submitted on March 4, 1983
Revised on April 15, 1983


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