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Science 30 September 1966:
Vol. 153. no. 3744, p. 1659
DOI: 10.1126/science.153.3744.1659
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Articles

Growth-Inhibiting Action of Tris(1-Aziridinyl)-Phosphine Oxide in Grasses

Theodore W. Holmsen 1 and J. Keith Leasure 2

1 Bioproducts Department, Dow Chemical Company, Midland, Michigan
2 Department of Agronomy, University of Southern Illinois, Carbondale

Tris(1-aziridinyl)-phosphine Oxide inhibits the growth of seedling grasses with concomitant accumulation of anthocyanins and exudation of sap. Treated plants are deficient in cell-wall materials. However, the percentage of Other metabolic products, such as protein and simple sugars, is increased. We suggest that this compound inhibits cellular expansion by cross-linking with cellulose in the plant cell wall.

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