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Barbara Valent
Researcher at Kansas State University
Publications - 146
Citations - 16810
Barbara Valent is an academic researcher from Kansas State University. The author has contributed to research in topics: Magnaporthe grisea & Gene. The author has an hindex of 61, co-authored 140 publications receiving 15053 citations. Previous affiliations of Barbara Valent include Pennsylvania State University & DuPont Central Research.
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Journal ArticleDOI
Direct interaction of resistance gene and avirulence gene products confers rice blast resistance
TL;DR: It is reported here that transient expression of AVR‐Pita176 inside plant cells results in a Pi‐ta‐dependent resistance response, and data suggest that the AVR-Pita 176 protein binds directly to the Pi‐TA LRD region inside the plant cell to initiate a Pi-ta‐mediated defense response.
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A Single Amino Acid Difference Distinguishes Resistant and Susceptible Alleles of the Rice Blast Resistance Gene Pi-ta
Gregory T. Bryan,Kun-Sheng Wu,Leonard Farrall,Yulin Jia,Howard P. Hershey,Sean A. McAdams,Kristina N. Faulk,Gail K. Donaldson,Renato Tarchini,Barbara Valent +9 more
TL;DR: Using a map-based cloning strategy, the Pi-ta gene, which is linked to the centromere of chromosome 12, was cloned and it was found that no resistance response is induced in transient assays that use a naturally occurring pi-ta– allele differing only by the serine at position 918.
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BREAKING AND ENTERING: Host Penetration by the Fungal Rice Blast Pathogen Magnaporthe grisea
Richard J. Howard,Barbara Valent +1 more
TL;DR: The filamentous fungus Magnaporthe grisea can cause disease on many species of the grass (Poaceae) family, and its mechanism for breaching the formidable host surface barriers has been studied cytologically and genetically as a model for plant pathology, and represents a remarkably sophisticated achievement of nature.
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A telomeric avirulence gene determines efficacy for the rice blast resistance gene Pi-ta.
TL;DR: Diverse mutations in AVR-Pita, including point mutations, insertions, and deletions, permit the fungus to avoid triggering resistance responses mediated by Pi-ta, and abolishes the AVR -Pita avirulence function.
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Roles for Rice Membrane Dynamics and Plasmodesmata during Biotrophic Invasion by the Blast Fungus
TL;DR: Analysis of biotrophic blast invasion will significantly contribute to the understanding of normal plant processes and allow the characterization of secreted fungal effectors that affect these processes.