In March 2021, severe signs of powdery mildew were observed on leaves and stems Coccinia grandis in the Manchar, Pune District, Maharashtra state, India. Based morphological examination, phylogenetic analyses, pathogenicity test, causal agent was identified as Golovinomyces tabaci. To our knowledge, this is first record G. tabaci infecting C. Previously, had only been reported from Taiwan Thail...

To better dissect non-host resistance against haustorium-forming powdery mildew pathogens, a sow thistle powdery mildew isolate designated Golovinomyces cichoracearum UMSG1 that has largely overcome penetration resistance but is invariably stopped by post-invasion non-host resistance of Arabidopsis thaliana was identified. The post-invasion non-host resistance is mainly manifested as the format...

We report the powdery mildew Golovinomyces ambrosiae for first time on silverleaf nightshade (Solanum azureum), a host plant endemic to northern Sinaloa and southern Sonora, Mexico. No teleomorph was observed, requiring fungal species be identified based morphological characteristics of anamorph. Phylogenetic analyses ITS region partial sequence β-tubulin gene from four specimens confirmed iden...

Mieslerová B., Lebeda A., Petrželová I., Korbelová P. (2013): Incidence of lettuce downy mildew (Bremia lactucae) and powdery mildew (Golovinomyces cichoracearum) in natural populations of prickly lettuce (Lactuca serriola). Plant Protect. Sci., 39 (Special Issue): S24–S32. The study was focused on the wild pathosystem Lactuca serriola–lettuce downy mildew (Bremia lactucae) and lettuce powdery ...

From June to October 2012, severe outbreaks of rust disease on Solidago virgaurea var. gigantea were observed in 5 different regions of Ulleung-do, Korea. Typical rust symptoms appeared as yellow spots, uredinia on leaves, and massive urediniospores covering the entire plant. Severely infected plants became discolored and died. On the basis of its morphological and molecular characteristics, th...

The Rar1 gene, identified in the context of race-specific powdery mildew resistance mediated by the Hordeum vulgare (barley) resistance (R) gene Mla12, is required for the function of many R-mediated defense responses in mono- and dicotyledonous plant species. Mla resistance is associated with an oxidative burst and a subsequent cell death reaction of attacked cells. Rar1 mutants are impaired i...