Species/Subspecies: Puccinia graminis
Category: Plant pathogen
Etymology: Genus name: Possibly named after the Italian opera composer Gioacomo Puccini.
Species epithet: from grass.
Common name: Cereal, black or stem rust
Significance:Stem rust is today considered to be the most serious rust disease globally and infestation can cause large crop losses. Significance has declined in recent years, however, as resistant cereals have been developed.
Geographic distribution: Stem rust occurs all over the world.
Macromorphology (smell):
Reproduction:Stem rust has a complicated life cycle where it alternates between grassy plants and barberry or mahonia as hosts.
Spec. Char.:
Disease/effect: Black, stem or cereal rust.
Hosts/substrateDisease/effectClinical picture or result
Cereal crops and different species of wild grass and barberry (Berberis vulgaris).Cereal, black or stem rustIn the spring, spores from barberry bushes spread to grass plants and when these spores germinate, rust-brown "pustules" (blisters with spore collections) form on the grass plants.
Genome Sequence:
ACC-No GenBankStrain/Isolate# of chromSize (Mbp)
GCF_000149925 CRL 75-36-700-3  81.6 

18S rRNA Seq:
ACC-No GenBankStrain/IsolateNumber of NT
AY125409 1720 

ITS regions: -
Taxonomy/phylogeny: There are about 4000 species described within the genus Puccinia. All of these species are obligate plant pathogens and are called rust (as well as the disease they cause).
Reference(s): No. 88
Link: The Life Cycle of Wheat Stem Rust

Swedish University of Agricultural Sciences