Dear all, I am looking for a powdery mildew isolate infectious on Nicotiana benthamiana. If you have one, or you know someone has, please let me know. Your help will be highly appreciated. Shunyuan Xiao School of Biological Sciences University of East Anglia Norwich NR4 7TJ UK Email: s.xiao at uea.ac.uk Tel:01603-592239 ---