Virulent new strains of Ug99 stem rust, a deadly wheat pathogen
Thursday, May 27, 2010 - 21:20
in Biology & Nature
Four new mutations of Ug99, a strain of a deadly wheat pathogen known as stem rust, have overcome existing sources of genetic resistance developed to safeguard the world's wheat crop. Leading wheat experts say the evolving pathogen may pose an even greater threat to global wheat production than the original Ug99.