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Science 26 August 1960:
Vol. 132. no. 3426, pp. 548 - 549
DOI: 10.1126/science.132.3426.548
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Articles

Hormonal Induction of Vascular Tissue in Tobacco Pith in vitro

Mary E. Clutter 1

1 Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania

The direct addition of indole-3-acetic acid into sterile-cultured stem pith sections of Nicotiana tabacum through inserted glass pipettes has induced cell division and differentiation where such activity would not normally occur. This evidence lends support to the theory that indole-3-acetic acid is the hormone that limits xylogenesis.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)