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Home • Blumeria graminis f. sp. hordei 5874 v1.0
Blumeria graminis f. sp. hordei on its host.
Blumeria graminis f. sp. hordei on its host.
Image Credit: Greg Fuerst, USDA-ARS, Corn Insects and Crop Genetics Research Unit, Ames, IA

Obligate fungal pathogens (e.g., mildews and rusts) are a major threat to cereal grain production worldwide (Savary et al. 2012). Because they are unable to survive autonomously, obligate parasites are ideal tools to explore interdependent signaling between disease agents and their hosts. The powdery mildew fungus, Blumeria graminis, is an obligate biotrophic pathogen of cereals and has significant impact on food security (Dean et al. 2012). B. graminis f. sp. hordei (Bgh) is the causal agent of powdery mildew on barley (Hordeum vulgare L.).

Bgh isolate 5874 was obtained from Dr. J. Helms Jørgensen at the Risø National Laboratory, Roskilde, Denmark. It is avirulent on barley plants that encode the MLA1, MLA3, MLA6, or MLA12 nucleotide-binding leucine-rich repeat receptors (NLRs; Moscou et al. 2011). The reference genome for Bgh isolate 5874 will contribute to ongoing studies into how pathogen effectors (Lu et al. 2016, Ridout et al. 2006, Saur et al. 2019) influence plant immunity (Meng et al. 2009, Meng and Wise 2012, Moscou et al. 2011, Surana et al. 2017, Xu et al. 2015, Xu et al. 2014) and advance the application of that knowledge to benefit sustainable agriculture.