Rusts are one of the most severe threats to cereal crops because new pathogen races emerge regularly, resulting in infestations that lead to large yield losses. In 1999, a new race of stem rust, Puccinia graminis f. sp. tritici (Pgt TTKSK or Ug99), was discovered in Uganda. Most of the wheat and barley cultivars grown currently worldwide are susceptible to this new race. Pgt TTKSK has already s...

In Ethiopia, stem rust caused by Puccinia graminis f. sp. tritici (Pgt) is one of the most serious wheat diseases. On vulnerable cultivars, it has ability to cause yield losses up 100%. The infection responses forty-two lines at seedling stage against eleven isolates race TTKSK (Ug99 race), TTRTF, TKTTF (Digalu JRCQC, TKKTF, TRTTF, TTTTF, TTKTF, TTKTT, RRTTF, and TKPTF were evaluated in a study...

Wheat stem rust, caused by Puccinia graminis f. sp. tritici, is a re-emerging disease, posing threat to wheat production. In Spain, rust has been rarely detected since the 1970s, but infection was observed in fields 2018. We analysed six samples collected Rota, Cádiz province and one from Monteagudo del Castillo, Teruel province. All Rota were typed as race TKTTF, whereas sample field adjacent ...

Wheat stem rust, caused by Puccinia graminis f. sp. tritici, can cause severe yield losses on susceptible wheat varieties and cultivars. Although stem rust can be controlled by the use of genetic resistance, population dynamics of P. graminis f. sp. tritici can frequently lead to defeat of wheat stem rust resistance genes. P. graminis f. sp. tritici race TKTTF caused a severe epidemic in Ethiop...