Use of ethylene-producing bacteria for stimulation of Striga spp. seed germination.
A procedure was developed that allowed the ethylene-producing strains of Pseudomonas syringae pv. glycinea 8/83, 16/83 and 19/84 to be tested against other germination stimulants (strigol analogue GR24, roots of cowpea (Vigna unguiculata) cv. IT84S-2246-4 and ethylene gas) for their ability to stimulate germination in Striga aspera, S. gesnerioides and S. hermonthica. Results from a 10-month experiment indicated that the bacterial strains were more effective stimulators of germination than either cowpea roots or ethylene gas, and gave germination levels in S. aspera and S. gesnerioides similar to those produced by GR24.