Hormone-Directed Transport of Certain Organic Compounds in Malus sylvestris Seedlings1
Open Access
- 1 May 1971
- journal article
- Published by American Society for Horticultural Science in Journal of the American Society for Horticultural Science
- Vol. 96 (3) , 399-400
- https://doi.org/10.21273/jashs.96.3.399
Abstract
Indoleacetic acid (IAA), gibberellins A4 + A7 (GA4&7) and benzyladenine (BA) were applied to apple seedlings to determine their influence on movement or translocation of 14C-sorbitol, 14C-glycine, 14C-naphthaleneacetic acid (14C-NAA), 3H-gibberellin A1 (3H-GA), and 14C-kinetin. The materials mobilized 14C-sorbitol in an acropetal direction, but only after root competition had been eliminated by steam girdling. A mixture of the 3 growth substances brought about mobilization of 14C-glycine acropetally that was greatly enhanced after root competition had been eliminated. 14C-NAA was not mobilized acropetally or basipetally by GA4&7, and/or BA. BA mobilized 3H-GA1 acropetally and mobilization was enhanced by the addition of IAA. A mixture of IAA and BA also mobilized 3H-GA1 basipetally. An acropetal movement of 14C-kinetin was induced only with a mixture of GA4&7 and IAA.Keywords
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