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Stem rust, also known as cereal rust, black rust, [1] [2] red rust or red dust, [3] is caused by the fungus Puccinia graminis, which causes significant disease in cereal crops. Crop species that are affected by the disease include bread wheat, durum wheat, barley and triticale. [1] These diseases have affected cereal farming throughout history.
P. graminis (stem rust of wheat and Kentucky bluegrass, or black rust of cereals); primary hosts include: Kentucky bluegrass, barley, and wheat; Common barberry is the alternate host. Heteroecious and macrocyclic; P. hemerocallidis (daylily rust); daylily is primary host; Patrinia sp is alternate host. Heteroecious and macrocyclic
Stem rust = black rust Puccinia graminis. Puccinia graminis f.sp. tritici (Ug99) Storage molds Aspergillus spp. Penicillium spp. and others; Stripe rust = yellow rust Puccinia striiformis; Uredo glumarum [anamorph] Take-all Gaeumannomyces graminis var. tritici; Gaeumannomyces graminis var. avenae; Tan spot = yellow leaf spot, red smudge ...
Ug99 is a lineage of wheat stem rust (Puccinia graminis f. sp. tritici), which is present in wheat fields in several countries in Africa and the Middle East and is predicted to spread rapidly through these regions and possibly further afield, potentially causing a wheat production disaster that would affect food security worldwide. [1]
There are a number of plants that can be infected by the telial stage. Therefore, the telial stage is considered a pathogen to those plants. A few specific plant pathogenic species are listed here with their hosts. Puccinia graminis or known commonly as black stem rust. It infects many different cereal crops.
The life cycle of Puccinia graminis f. sp. tritici, commonly called stem rust of wheat, is notoriously complex, with five types of spores (macrocyclic) and two distinct host plants (heteroecious). This fungus is an obligate biotrophic (feeding on the living plant tissue) pathogen of cereal crops that can cause extensive yield loss (Schumann and ...
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Map from Stakman's 1922 US Plant Disease Survey. Through work that he began as part of his Ph.D. on black stem rust (Puccinia graminis), Stakman disproved the prevalent theory of "bridging hosts", the belief that the fungus could develop new parasitic capabilities to spread from rye to barley to (previously immune) wheat.