image: Stem rust infecting adult wheat stems in the field. The pathogen kills wheat plants by girdling stems, resulting in crops comprising a tangled mess. This material relates to a paper that appeared in the 22 Dec. 2017, issue of Science, published by AAAS. The paper, by J. Chen at University of Sydney in Cobbitty, NSW, Australia, and colleagues was titled, "Loss of AvrSr50 by somatic exchange in stem rust leads to virulence for Sr50 resistance in wheat." view more
Credit: Professor Robert F. Park, The University of Sydney Plant Breeding Institute