• Competition, facilitation, and niche differentiation in two foliar pathogens 

      Al-Naimi, F.A.; Garrett, K.A.; Bockus, William W. ( Springer Berlin / Heidelberg , 2004 , Article)
      We studied competition between the obligate biotroph Puccinia triticina (designated here as Puccinia) and the facultative saprophyte Pyrenophora tritici-repentis (designated here as Pyrenophora) in older and younger leaves ...