The initial editorial points out that "Purified isolates of rhizosphere-derived bacteria or fungi can promote plant growth...Thus, the rhizosphere microbiome is likely to tune both maximal plant growth-promoting and protective functions." Later in theissue, we learn of concern that "a highly virulent race of stem rust, called Ug99, a plant pathogen that had recently crossed the border [of Kenya] from Uganda and was threatening wheat farmers around the world." A letter expresses concern over the spread of grapevine trunk diseases which are "the consequences of a complex of fungi that was described as early as the end of the 20th century." And articles concerning plant-fungus interactions are entitled: "Terrific Protein Traffic: The Mystery of Effector Protein Delivery by Filamentous Plant Pathogens," "Hormone (Did)harmony Moulds Plant Health and Disease," "Reprogramming Plant Cells for Endosymbiosis," and "Coevolution of Plants and Their Pathogens in Natural Habitats"
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