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Accumulation of 32P and [14C]sucrose in decapitated and intact shoots of the fern Davallia trichomanoides blume

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Abstract

The transport and accumulation of 32P and [14C] sucrose in decapitated and intact shoot segments of the fern Davallia were studied. The apical buds of intact shoots and the expanding buds of shoots decapitated 4 weeks before application are major sinks for these nutrients. Decapitation results in a shift of 14C accumulation from the apex to the lateral buds within 36 h. This shift can be reversed in shoots decapitated for 12 h by replacing the apex. Increased 14C accumulation into the stump region occurs when decapitated shoot segments are treated with indole-3-acetic acid, and decreased label accumulation into the apical region results when intact shoots are treated with 2,3,5-triiodobenzoic acid.

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Author notes

  1. Judith G. Croxdale

    Present address: Department of Biology, Virginia Polytechnic Institute and State University, 24061, Blacksburg, VA, USA

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  1. Department of Botany, University of California, 94720, Berkeley, CA, USA

    Judith G. Croxdale

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  1. Judith G. Croxdale
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Croxdale, J.G. Accumulation of 32P and [14C]sucrose in decapitated and intact shoots of the fern Davallia trichomanoides blume. Planta 133, 111–115 (1977). https://doi.org/10.1007/BF00391907

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  • DOI: https://doi.org/10.1007/BF00391907

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