UNLABELLED Leaf rust, caused by Puccinia triticina, is the most common rust disease of wheat. The fungus is an obligate parasite capable of producing infectious urediniospores as long as infected leaf tissue remains alive. Urediniospores can be wind-disseminated and infect host plants hundreds of kilometres from their source plant, which can result in wheat leaf rust epidemics on a continental ...

In a 1989 publication, the 74 species of rust fungi (order Uredinales) known to occur in Hawai'i were listed, based on newly collected material; herbarium specimens, principally those at the Bernice P. Bishop Museum (BISH); and information provided by F. L. Stevens in his 1925 publication on Hawaiian fungi. Stevens had noted an underrepresentation of this group in Hawai'i, which he attributed t...

In the present study, infra specific taxonomy of Puccinia coronata in Iran was studied. Based on morphological characters only, four P. coronata varieties were recognized in Iran. These are: P. coronata var. coronata, P. c. var. avenae, P. c. var. hordei and P. c. var. golestanica var. nov. Descriptions of the four varieties and their host range are provided. Several new hosts for aecial and te...

Fungi represent a distinct kingdom of ubiquitous living beings. Most other organisms are constantly in contact with elements the fungal body. In particular, widespread vegetation fungi environment, their sporulation and further spread spores mycelia by air currents make particles human respiratory organs inevitable. This can lead to development sensitization allergies. Therefore, aim presented ...

Treatment of broad bean leaves with salicylic acid (SA) or 2, 6-dichloro-isonicotinic acid (DCINA) induces resistance against the rust fungus Uromyces fabae resulting in reduced rust pustule density. Light-microscopy studies showed that in induced resistant plants the rust fungus is inhibited immediately after penetration through the stomatal pore. The differentiation of infection structures gr...