Hormonal Induction of Vascular Tissue in Tobacco Pith in vitro

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Science  26 Aug 1960:
Vol. 132, Issue 3426, pp. 548-549
DOI: 10.1126/science.132.3426.548


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.