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Iron treatment induces resistance against the rice blast fungus Magnaporthe oryzae through potentiation of immune responses

ABSTRACT: Iron treatment induces resistance against the rice blast fungus Magnaporthe oryzae through potentiation of immune responses

PROVIDER: PRJNA837985 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19205228_1.fastq.gz	Fastqsanger.gz
	SRR19205228_2.fastq.gz	Fastqsanger.gz
	SRR19205229_1.fastq.gz	Fastqsanger.gz
	SRR19205229_2.fastq.gz	Fastqsanger.gz
	SRR19205230_1.fastq.gz	Fastqsanger.gz

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Iron treatment induces resistance against the rice blast fungus Magnaporthe oryzae through potentiation of immune responses

Project description:To investigate the role of iron excess in rice immune responses to Magnaporthe oryzae infection. Gene expression profiling analysis were performed using data obtained from RNA-seq of rice plants grown in differential iron supply and challenged with Magnaporthe oryzae spores.

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Analysis of the Interaction Transcriptome During Biotrophic Invasion of Rice by the Blast Fungus, Magnaporthe oryzae

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Hierarchical transcriptional network controls appressorium-mediated plant infection by the rice blast fungus Magnaporthe oryzae

Project description:We report that the homeobox trasncription factor called HOX7 controls hyphae-associated genes, autophagy and cell cycle related genes necessary for appressorium development in the rice blast fungus Magnaporthe oryzae. We also report that the ste transcription factor MST12 regulates gene functions involved in septin reorientation.

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Comparison of transcript abundance in mycelium from the rice blast fungus Magnaporthe oryzae grown in rich medium and in minimal medium using RNA-Seq

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Comparison of transcript abundance in mycelium from the rice blast fungus Magnaporthe oryzae grown in rich medium and in minimal medium using HT-SuperSAGE.

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Comparison of transcript abundance in mycelium from the rice blast fungus Magnaporthe oryzae grown in rich medium and in minimal medium using RNA-Seq

Project description:Mycelium from the rice blast fungus Magnaporthe oryzae was grown in both rich medium and under nutrient limiting conditions. Genes were identified that were more highly expressed in one condition as compared to the other. Samples were taken from mycelium grown in both complete medium and in glucose minimal medium. One replicate for each sample.

2012-02-13 | E-GEOD-30327 | biostudies-arrayexpress

Comparison of transcript abundance in mycelium from the rice blast fungus Magnaporthe oryzae grown in rich medium and in minimal medium using HT-SuperSAGE.

2012-02-13 | E-GEOD-30256 | biostudies-arrayexpress

Analysis of transcript abundance during appressorium formation in the rice blast fungus Magnaporthe oryzae using HT-SuperSAGE.

Project description:The rice-blast fungus Magnaporthe oryzae is disseminated using a three-celled spore or conidium. Upon landing on the surface of a rice leaf, the conidium germinates and forms a specialised structure for entry into the host plant - the appressorium. In this study we have followed gene expression thoughout germination of the conidium and formation of the appressorium to identify genes that may be important for appressorium function. We have also compared gene expression in the wild-type germinating conidium at four hours to a mutant strain deleted for the MAP kinase pmk1. The pmk1 mutant is unable to form appressoria.

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Physiological stressors and invasive plant infections alter the small RNA transcriptome of the rice blast fungus, Magnaporthe oryzae

Project description:The rice blast fungus, Magnaporthe oryzae is a destructive pathogen of rice and other related crops, causing significant yield losses worldwide. Endogenous small RNAs (sRNAs), including small interfering RNAs (siRNAs) and microRNAs (miRNAs) are critical components of gene regulation in many eukaryotic organisms. Recently several new species of sRNAs have been identified in fungi. This fact along with the availability of genome sequence makes M. oryzae a compelling target for sRNA profiling. We have examined sRNA species and their biosynthetic genes in M. oryzae, and the degree to which these elements regulate fungal stress responses. To this end, we have characterized sRNAs under different physiological stress conditions, which had not yet been examined in this fungus. The resulting libraries are composed of more than 37 million total genome matched reads mapping to intergenic regions, coding sequences, retrotransposons, inverted, tandem, and other repeated regions of the genome with more than half of the small RNAs arising from intergenic regions. The 24 nucleotide (nt) size class of sRNAs was predominant. A comparison to transcriptional data of M. oryzae undergoing the same physiological stresses indicates that sRNAs play a role in transcriptional regulation for a small subset of genes. Support for this idea comes from generation and characterization of mutants putatively involved in sRNAs biogenesis; our results indicate that the deletion of Dicer-like genes and an RNA-Dependent RNA Polymerase gene increases the transcriptional regulation of this subset of genes, including one involved in virulence. Various physiological stressors and in planta conditions alter the small RNA profile of the rice blast fungus. Characterization of sRNA biosynthetic mutants helps to clarify the role of sRNAs in transcriptional control.

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