• Stephen O. Duke
  • Scott R. Baerson
  • Agnes M. Rimando
  • Zhiqiang Pan
  • Franck E. Dayan
  • Regina G. Belz
Part of the NATO Security through Science Series book series


Growing highly allelopathic crops has the potential to significantly reduce our reliance on synthetic herbicides for weed management. Specific phytotoxins have been found in allelopathic rice, wheat, and rye varieties, but this information has not been used in breeding varieties that can be marketed on the basis of their weed management properties. Although such a conventional approach is viable, transgenic strategies may be better. For example, genes encoding enzymes of the highly potent phytotoxin sorgoleone in Sorghum spp. might be transgenically manipulated to enhance the allelopathic properties of sorghum crops. This potent phytotoxin is exclusively synthesized and secreted by root hairs. The sorgoleone pathway has been elucidated and putative genes encoding them have been identified and partially verified.


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Copyright information

© Springer 2007

Authors and Affiliations

  • Stephen O. Duke
    • 1
  • Scott R. Baerson
    • 1
  • Agnes M. Rimando
    • 1
  • Zhiqiang Pan
    • 1
  • Franck E. Dayan
    • 1
  • Regina G. Belz
    • 2
  1. 1.USDA, ARSNatural Products Utilization Research UnitUSA
  2. 2.Institute of Phytomedicine 360, Department of Weed ScienceUniversity of HohenheimStuttgartGermany

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