BACKGROUND Reliance on fungicides to manage disease creates selection pressure for the evolution of resistance in fungal and oomycete pathogens. Rust fungi (Pucciniales) are major pathogens cereals other crops have been classified as low-risk developing fungicides; no case field failure a cereal rust has yet recorded. Recently, Asian soybean pathogen, Phakopsora pachyrhizi evolved several fungi...

Austropuccinia psidii , the causal agent of myrtle rust, has emerged as a significant threat to Myrtaceae in planted and natural woody ecosystems. The first detection A. puccinia South Africa was from severely infected ornamental Myrtus communis. This raised concern that M. communis sole species native Europe an important component vegetation Mediterranean regions, could be threatened by rust. ...

In the present study, two species of rosaceous rust fungi are reported from Iran. Ochropsora ariae is newly reported for Iranian rust mycobiota. This is the first report of a member of the genus Ochropsora from Iran. Kuehneola uredinis is reported for the second time from Iran since its first report in 1958 under the name K. albida. Pyrus boissieriana</em...

The species in genus Melampsora are the causal agents of leaf rust diseases on willows in natural habitats and plantations. However, the classification and recognition of species diversity are challenging because morphological characteristics are scant and morphological variation in Melampsora on willows has not been thoroughly evaluated. Thus, the taxonomy of Melampsora species on willows rema...