Publications by authors named "R Panstruga"

Powdery mildew fungi are serious pathogens affecting many plant species. Their genomes encode extensive repertoires of secreted effector proteins that suppress host immunity. Here, we revised and analyzed the candidate secreted effector protein (CSEP) effectome of the powdery mildew fungus, Blumeria hordei (Bh).

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Article Synopsis
  • Extracellular vesicles (EVs) play a crucial role in interactions between plants and microbes, highlighting their importance in biological research.
  • The text addresses the unique challenges faced by researchers studying EVs in plant-microbe systems, emphasizing the need for tailored approaches beyond established guidelines from mammalian studies.
  • Detailed step-by-step suggestions for experimental design, optimization, and quality control are provided to enhance the yield and purity of EV isolation, fostering collaboration and discussion within the broader EV research community.
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RNA interference (RNAi) is a crucial mechanism in immunity against infectious microbes through the action of DICER-LIKE (DCL) and ARGONAUTE (AGO) proteins. In the case of the taxonomically diverse fungal pathogen and the oomycete , plant DCL and AGO proteins have proven roles as negative regulators of immunity, suggesting functional specialization of these proteins. To address this aspect in a broader taxonomic context, we characterized the colonization pattern of an informative set of and loss-of-function mutants in upon infection with a panel of pathogenic microbes with different lifestyles, and a fungal mutualist.

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Hosts and pathogens typically engage in a coevolutionary arms race. This also applies to phytopathogenic powdery mildew fungi, which can rapidly overcome plant resistance and perform host jumps. Using experimental evolution, we show that the powdery mildew pathogen Blumeria hordei is capable of breaking the agriculturally important broad-spectrum resistance conditioned by barley loss-of-function mlo mutants.

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Powdery mildew-resistant barley (Hordeum vulgare) and Arabidopsis thaliana mlo mutant plants exhibit pleiotropic phenotypes such as the spontaneous formation of callose-rich cell wall appositions and early leaf chlorosis and necrosis, indicative of premature leaf senescence. The exogenous factors governing the occurrence of these undesired side effects remain poorly understood. Here, we characterised the formation of these symptoms in detail.

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