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Association Genetics Reveals Three Novel Avirulence Genes from the Rice Blast Fungal Pathogen Magnaporthe oryzae[W][OA]
This large-scale study found significantly more presence/absence polymorphisms than nucleotide polymorphisms among 1032 putative secreted protein genes in M. oryzae isolates, corresponding to five previously known AVR genes, whose products are recognized inside rice cells possessing the cognate R genes.
RNA silencing as a tool for exploring gene function in ascomycete fungi.
Systematic functional analysis of calcium‐signalling proteins in the genome of the rice‐blast fungus, Magnaporthe oryzae, using a high‐throughput RNA‐silencing system
- Quoc Nguyen, N. Kadotani, S. Kasahara, Y. Tosa, S. Mayama, H. Nakayashiki
- BiologyMolecular microbiology
- 1 June 2008
An RNA‐silencing vector, pSilent‐Dual1 (pSD1), with a convergent dual promoter system that provides a high‐throughput platform for functional genomics research in filamentous fungi, to demonstrate the applicability of the pSD1 system for elucidating gene function in the rice‐blast fungus Magnaporthe oryzae.
Microarray analysis of the gene expression profile induced by the endophytic plant growth-promoting rhizobacteria, Pseudomonas fluorescens FPT9601-T5 in Arabidopsis.
- Yanqing Wang, Yumiko Ohara, H. Nakayashiki, Y. Tosa, S. Mayama
- Environmental ScienceMolecular plant-microbe interactions : MPMI
- 1 May 2005
The results suggest that P. fluorescens FPT9601-T5 triggered plant responses in a manner similar to known PGPR and, at least in some aspects, to rhizobia.
Analysis of the structure of the AVR1-CO39 avirulence locus in virulent rice-infecting isolates of Magnaporthe grisea.
Findings suggest that widespread virulence to 'CO39' among rice-infecting M. grisea isolates is due to ancestral rearrangements at the AVR1-CO39 locus that may have occurred early in the evolution of pathogenicity to rice.
Multiple Translocation of the AVR-Pita Effector Gene among Chromosomes of the Rice Blast Fungus Magnaporthe oryzae and Related Species
It is proposed that the multiple translocation of AVR-Pita may be associated with its frequent loss and recovery mediated by its transfer among individuals in asexual populations, which implies that the high mobility of A VR-Pitas is a key mechanism accounting for the rapid adaptation toward Pita.
Mitochondrial oxidative burst involved in apoptotic response in oats.
Findings indicate possible involvement of mitochondria, especially mitochondrial-derived ROS generation, as an important regulator in controlling apoptotic cell death in oats.
RNA silencing in the phytopathogenic fungus Magnaporthe oryzae.
- N. Kadotani, H. Nakayashiki, Y. Tosa, S. Mayama
- BiologyMolecular plant-microbe interactions : MPMI
- 1 September 2003
Results indicate that RNA silencing operates in M. oryzae, which gives a new tool for genome-wide gene analysis in this fungus, and the first demonstration in which different molecular sizes of siRNAs have been found in filamentous fungi.
Repeat‐induced point mutation (RIP) in Magnaporthe grisea: implications for its sexual cycle in the natural field context
The frequency of the transitions mostly correlated with the fertility of the isolates examined under laboratory conditions imply that the sexual cycle of this fungus exists or existed in the natural field context, suggesting that a process similar to RIP functions in M. grisea.
Evolution of the wheat blast fungus through functional losses in a host specificity determinant
Study on avirulence and resistance gene distributions, together with historical data on wheat cultivation in Brazil, suggest that wheat blast emerged due to widespread deployment of rwt3 wheat (susceptible to Lolium isolates), followed by the loss of function of PWT3, which implies that the rWT3 wheat served as a springboard for the host jump to common wheat.