Growth Inhibitor in Immature Soybean Seeds and 2,4-D-Sprayed Soybean Seedlings

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Science  13 Nov 1959:
Vol. 130, Issue 3385, pp. 1340-1341
DOI: 10.1126/science.130.3385.1340


A naturally occurring inhibitor of seed germination has been isolated by ion-exchange chromatography from soybean seeds and seedlings. The inhibitor was present in large amounts in immature seeds and in seedlings sprayed with 2,4-D. The inhibitor acted as an "uncoupler" when applied to soybean root tips or mitochondria.