Tanaka, A., M. Christensen, D. Takemoto, and B. Scott. “Endophyte Production of Reactive Oxygen Species Is Critical for Maintaining the Mutualistic Symbiotic Interaction Between Epichloe Festucae and Pooid Grasses”. NZGA: Research and Practice Series, vol. 13, Jan. 2007, pp. 185-8, doi:10.33584/rps.13.2006.3060.