The invention relates in general to plants, plant cells, methods of making, and methods of using plants and plant cells transformed to contain a DNA sequence encoding an AMPA-N-acetyltransferase, and to plants and plant cells exhibiting resistance to AMPA in an amount which inhibits the growth of a plant...http://www.google.com.au/patents/US6448476?utm_source=gb-gplus-sharePatent US6448476 - Plants and plant cells transformation to express an AMPA-N-acetyltransferase
