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Cited by 263

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

Multiple Avirulence Paralogues in Cereal Powdery Mildew Fungi May Contribute to Parasite Fitness and Defeat of Plant Resistance

Open access
Ridout, Christopher J., Skamnioti, Pari, Porritt, Oliver, Sacristan, Soledad, Jones, Jonathan D.G., Brown, James K.M.·2006·The Plant Cell

Abstract

Powdery mildews, obligate biotrophic fungal parasites on a wide range of important crops, can be controlled by plant resistance (R) genes, but these are rapidly overcome by parasite mutants evading recognition. It is unknown how this rapid evolution occurs without apparent loss of parasite fitness. R proteins recognize avirulence (AVR) molecules from parasites in a gene-for-gene manner and trigger defense responses. We identify AVR(a10) and AVR(k1) of barley powdery mildew fungus, Blumeria graminis f sp hordei (Bgh), and show that they induce both cell death and inaccessibility when transiently expressed in Mla10 and Mlk1 barley (Hordeum vulgare) varieties, respectively. In contrast with other reported fungal AVR genes, AVR(a10) and AVR(k1) encode proteins that lack secretion signal peptides and enhance infection success on susceptible host plant cells. AVR(a10) and AVR(k1) belong to a large family with >30 paralogues in the genome of Bgh, and homologous sequences are present in other formae speciales of the fungus infecting other grasses. Our findings imply that the mildew fungus has a repertoire of AVR genes, which may function as effectors and contribute to parasite virulence. Multiple copies of related but distinct AVR effector paralogues might enable populations of Bgh to rapidly overcome host R genes while maintaining virulence.

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Metadata

Authors
Ridout, C. J., Skamnioti, P., Porritt, O., Sacristan, S., Jones, J. D. G., & Brown, J. K. M.
Venue
The Plant Cell
Published
2006-08-11
Volume
18
Issue
9
Pages
2402-2414
ISSN
  • 1040-4651 (ISSN-L)
  • 1532-298X
OpenAlex
W2104657603
Cited by
263
References
40
FWCI
25.17
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Multiple Avirulence Paralogues in Cereal Powdery Mildew Fungi May Contribute to Parasite Fitness and Defeat of Plant Resistance. https://app.cochat.ai/papers/10.1105/tpc.106.043307
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Ridout, C. J., Skamnioti, P., Porritt, O., Sacristan, S., Jones, J. D. G., & Brown, J. K. M. (2006). Multiple Avirulence Paralogues in Cereal Powdery Mildew Fungi May Contribute to Parasite Fitness and Defeat of Plant Resistance. The Plant Cell. https://doi.org/10.1105/tpc.106.043307

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