PAMP-triggered basal immunity in plants / Thorsten Nürnberger and Birgit Kemmerling -- Plant pathogens as suppressors of host defense / Jean-Pierre Métraux ... [et al.] -- From nonhost resistance to lesion-mimic mutants / Andrea Lenk and Hans Thordal-Christensen -- Action at a distance / Marc J. Champigny and Robin K. Cameron -- Systemic acquired resistance / R. Hammerschmidt -- Rhizobacteria-induced systemic resistance / David de Vleesschauwer and Monica Höfte -- Plant growth-promoting actions of rhizobacteria / Stijn Spaepen, Jos Vanderleyden and Yaacov Okon -- Interactions between nonpathogenic fungi and plants / M. I. Trillas and G. Segarra -- Priming of induced plant defense responses / Uwe Conrath -- Transcriptional regulation of plant defense responses / Marcel C. Van Verk, Christiane Gatz and Huub J. M. Linthorst -- Unexpected turns and twists in structure/function of PR-proteins that connect energy metabolism and immunity / Meena L. Narasimhan ... [et al.] -- Role of iron in plant-microbe interactions / P. Lemanceau ... [et al.] -- Adaptive defense responses to pathogens and insects / Linda L. Walling -- Plant volatiles in defence / Merijn R. Kant ... [et al.] -- Ecological consequences of plant defence signalling / Martin Heil and Dale R. Walters