The mankind is now facing the first-class target: the protection and conservation of the gene pool of all organisms. This concerns plants, animals and saprophytes (destruents) as economically useful as well as injurious and harmful ones like rust fungi. The detailed knowledge of the gene pool of both host plants and their biotrophic pathogens is one of the important prerequisites for effective integrated management of plant rusts. Based on the global, rough taxonomic treatment of graminicolous rusts we are not able to get a detailed picture about the gene pool of rust species concerned. Therefore, taking into account the global species concept, we have to discover the inner biological and ecological variability, which became evident as various infraspecific taxa or individual narrow species.
Urban Z. (1991): Broad and narrow species concept in graminicolours rust fungi. – Česká Mykologie 45(3): 99–102.
