STIMULATION OF OROBANCHE-CRENATA SEED-GERMINATION BY (+)-STRIGOL AND STRUCTURAL ANALOGS DEPENDENCE ON CONSTITUTION AND CONFIGURATION OF THE GERMINATION STIMULANTS
The stimulation of Orobanche crenata seed germination by (+)-strigol and a series of structurally related compounds differing from (+)-strigol in constitution and/or configuration is described. Both constitution and configuration of the stimulants influence the biological activity. The absolute configuration at C-2' (strigol numbering) seems to be of special importance.