Fig. 1From: The microbiome of cereal plants: The current state of knowledge and the potential for future applicationsCultivation areas of globally prevailing cereal crop plants and the number of corresponding microbiome studies. The cultivation areas are shown in the outer ring as percentages of the total area (622Â million ha) used to cultivate the four crops [9]. The inner ring indicates the percentage of microbiome studies obtained by extensive literature search within publicly accessible databasesBack to article page