Dithyrea

 Brassicaceae

The World Botanical Associates Web Page
Prepared by Richard W. Spjut
May 2004; August 2006

Dithyrea californica
E of 29 Palms, CA
Mar 2004

Dithyrea californica
E of 29 Palms, CA
Mar 2004

Dithyrea californica
29 Palms, CA
Apr 1973

     

Powell R. G., K. L. Mikolajczak, B. W. Zilkowski, H. S. Lu, E. K. Mantus and J. Clardy.  1991. Dithyreanitrile: an unusual insect antifeedant from Dithyrea wislizenii.  Experientia 47(3): 304306.  Dithyreanitrile, a novel sulfur-containing indole alkaloid, was isolated from the seeds of Dithyrea wislizenii (Cruciferae). Dithyreanitrile inhibits feeding of fall armyworm (Spodoptera frugiperda) and European corn borer (Ostrinia nubilalis) larvae. Dithyreanitrile, the first natural product with two sulfur atoms and a nitrile attached to the same carbon, was characterized by X-ray diffraction, spectroscopy, and chemical synthesis.