http://www.cnr.it/ontology/cnr/individuo/prodotto/ID189042

OsWRKY22, a monocot WRKY gene, plays a role in the resistance response to blast (Articolo in rivista)

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OsWRKY22, a monocot WRKY gene, plays a role in the resistance response to blast (Articolo in rivista) (literal)

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Abbruscato P; Nepusz T; Mizzi L; Del Corvo M; Morandini P; Fumasoni I; Michel C; Paccanaro A; Guiderdoni E; Schaffrath U; Morel JB; Piffanelli P; Faivre-Rampant O (2012)
OsWRKY22, a monocot WRKY gene, plays a role in the resistance response to blast
in Molecular plant pathology; WILEY-BLACKWELL, MALDEN 02148,MA (Stati Uniti d'America)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Abbruscato P; Nepusz T; Mizzi L; Del Corvo M; Morandini P; Fumasoni I; Michel C; Paccanaro A; Guiderdoni E; Schaffrath U; Morel JB; Piffanelli P; Faivre-Rampant O (literal)

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http://onlinelibrary.wiley.com/doi/10.1111/j.1364-3703.2012.00795.x/abstract;jsessionid=F5281CD193FAC790DF85DA4AFC0FC1BD.d03t01 (literal)

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Rice Genomics Unit, Parco Tecnologico Padano, via Einstein, 26900 Lodi, Italy; Centre for Systems and Synthetic Biology, Department of Computer Science, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, UK; Department of Biomolecular Sciences and Biotechnology, University of Milan, via Celoria 26, 20133 Milan, Italy; Department of Biology, University of Milan and CNR Institute of Biophysics (Milan Section), via Celoria 26, 20133 Milan, Italy; UMR BGPI INRA/CIRAD/SupAgro, Campus International de Baillarguet, 34398 Montpellier Cedex 5, France; CIRAD, UMR AGAP, Avenue Agropolis, 34398 Montpellier Cedex 5, France; Institute for Biology III (Plant Physiology), RWTH Aachen, 52056 Aachen, Germany (literal)

Titolo

OsWRKY22, a monocot WRKY gene, plays a role in the resistance response to blast (literal)

Abstract

With the aim of identifying novel regulators of host and nonhost resistance to fungi in rice, we carried out a systematic mutant screen of mutagenized lines. Two mutant wrky22 knockout lines revealed clear-cut enhanced susceptibility to both virulent and avirulent Magnaporthe oryzae strains and altered cellular responses to nonhost Magnaporthe grisea and Blumeria graminis fungi. In addition, the analysis of the pathogen responses of 24 overexpressor OsWRKY22 lines revealed enhanced resistance phenotypes on infection with virulent M. oryzae strain, confirming that OsWRKY22 is involved in rice resistance to blast. Bioinformatic analyses determined that the OsWRKY22 gene belongs to a well-defined cluster of monocot-specific WRKYs. The co-regulatory analysis revealed no significant co-regulation of OsWRKY22 with a representative panel of OsWRKYs, supporting its unique role in a series of transcriptional responses. In contrast, inquiring a subset of biotic stress-related Affymetrix data, a large number of resistance and defence-related genes were found to be putatively co-expressed with OsWRKY22. Taken together, all gathered experimental evidence places the monocot-specific OsWRKY22 gene at the convergence point of signal transduction circuits in response to both host and nonhost fungi encountering rice plants. (literal)

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