Germination of Witchweed ( <i>Striga lutea</i> Lour.): Isolation and Properties of a Potent Stimulant

C. E. Cook(RTI International), Leona P. Whichard(RTI International), Beverly Turner(RTI International), Monroe E. Wall(RTI International), G. H. Egley(Agricultural Research Service)
Science
December 2, 1966
Cited by 1,030

Abstract

A crystalline germination stimulant (trivial name strigol) for the rootparasite, witchweed (Striga lutea Lour.), has been isolated from cotton rootexudates and characterized as a C(19)H(22)O(6) compound. Although apparently different from known plant hormones, the stimulant is active at hormonal levels, causing germination at concentrations less than 1O(-5) part per million.


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