“…A general framework for understanding the mechanisms governing plant pathogen communities would be an important advance because the interactions among coinfecting pathogens can regulate the vital rates of individual plants, the evolution of populations and the interactions among plant species within a community (Malmstrom et al, 2005b;Borer et al, 2007;Seabloom et al, 2009). In addition, within-host intra-and interspecific parasite interactions can alter pathogen genetic recombination, transmission rates, emergence of new variants or species, host mortality, and virulence evolution (Lal et al, 1994;Miller & Rasochova, 1997;Kamal et al, 2001;Lello et al, 2004;Pedersen & Fenton, 2007;Rigaud et al, 2010;Alizon, 2013;Betancourt et al, 2013;Hall & Little, 2013;Salvaudon et al, 2013;Urbino et al, 2013). A general understanding of the effects of host resource supply on microbial interactions and disease dynamics in plant hosts is particularly relevant given the dramatic increase in the flux of nutrients in global biogeochemical cycles caused by human-induced changes and the increasing use of nutrients in agriculture (Tilman et al, 2001;Rockstrom et al, 2009;V€ or€ osmarty et al, 2010).…”