Lan Xu, Ph.D.
   Assistant Professor
   Ag Hall 104, PO Box 2207B
   Department of Biology & Microbiology
   SDSU Brookings, SD 57007
   Phone: (605)688-4564
   Fax: (605)688-6677
   Email: lan.xu@sdstate.edu
 Web site: http://biomicro.sdstate.edu/xul