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Xanthomonas oryzae pv. oryzae (Indian Isolate): Wild type vs. rpfF mutant

ABSTRACT: Transcription profiling of the DSF regulon in Xanthomonas oryzae pv. oryzae (Xoo) using wild type and the rpfF mutant. Cell-cell signaling mediated by the quorum sensing molecule known as Diffusible Signaling factor (DSF) is required for virulence of Xanthomonas group of plant pathogens. DSF in different Xanthomonas and the closely related plant pathogen Xylella fastidiosa regulates diverse traits in a strain specific manner. The transcriptional profiling performed in this study is to elucidate the traits regulated by DSF from the Indian isolate of Xanthomonas oryzae pv. oryzae, which exhibits traits very different from other Xanthomonas group of plant pathogen. In this study, transcription analysis was done between a wild type Xanthomonas oryzae pv. oryzae strain and an isogenic strain that has a mutation in the DSF biosynthetic gene rpfF.

ORGANISM(S): Xanthomonas oryzae Xanthomonas oryzae pv. oryzae

PROVIDER: GSE27809 | GEO | 2011/04/02

SECONDARY ACCESSION(S): PRJNA137921

REPOSITORIES: GEO

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Xanthomonas oryzae pv. oryzae (Indian Isolate): Wild type vs. rpfF mutant

Project description:Transcription profiling of the DSF regulon in Xanthomonas oryzae pv. oryzae (Xoo) using wild type and the rpfF mutant. Cell-cell signaling mediated by the quorum sensing molecule known as Diffusible Signaling factor (DSF) is required for virulence of Xanthomonas group of plant pathogens. DSF in different Xanthomonas and the closely related plant pathogen Xylella fastidiosa regulates diverse traits in a strain specific manner. The transcriptional profiling performed in this study is to elucidate the traits regulated by DSF from the Indian isolate of Xanthomonas oryzae pv. oryzae, which exhibits traits very different from other Xanthomonas group of plant pathogen. In this study, transcription analysis was done between a wild type Xanthomonas oryzae pv. oryzae strain and an isogenic strain that has a mutation in the DSF biosynthetic gene rpfF. Agilent one-color experiment, Organism: Xanthomonas oryzae, Agilent-025096 Genotypic Technology Pvt. Ltd. designed Custom Xanthomonas oryzae 8x15k, Labeling kit: Agilent Quick-Amp labeling Kit (p/n5190-0442).

2011-04-02 | E-GEOD-27809 | biostudies-arrayexpress

Rice roots: Non-colonized (sterile) control vs. infected with Xanthomonas oryzae pv. oryzae strain PXO99 (Xan)

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Xanthomonas oryzae pv. oryzicola (Indian Isolate) wild type and complented strains vs rpfF mutant grown under iron starved condition

Project description:Transcriptional profiling of DSF regulon under iron starvation in Xanthomonas oryzae pv. oryzicola (Xoc; BXOR1) using wild type, rpfF mutant and rpfF mutant with complementing plasmid pSC9. Cell-cell signalling mediated by quorum sensing molecule known as Diffusible signalling factor (DSF) is required for the virulence of Xanthomonas group of plant pathogens. The transcriptional profiling in this study is to elucidate the role of DSF in iron acquisition under the iron limitting environment which would lead to successful colonization and pathogenesis inside host.

2015-01-02 | GSE53255 | GEO

Xanthomonas oryzae pv. oryzicola (Indian Isolate) wild type and complented strains vs rpfF mutant grown under iron starved condition

2015-01-02 | E-GEOD-53255 | biostudies-arrayexpress

Transcriptome Profiling of Xanthomonas oryzae pv. oryzae and Xanthomonas oryzae pv. oryzicola

Project description:This SuperSeries is composed of the following subset Series: GSE9640: Transcriptome Profiling of Xanthomonas oryzae pv. oryzae and Xanthomonas oryzae pv. oryzicola on two different medias GSE9643: Transcriptome Profiling of Xanthomonas oryzae pv. oryzae knockout mutants at different hybridization conditions and PMTs Keywords: SuperSeries Refer to individual Series

2010-05-26 | E-GEOD-9658 | biostudies-arrayexpress

Rice (Nipponbare) transcriptome upon inoculation with Malian Xanthomonas oryzae pv. oryzae strain MAI1

Project description:African Xanthomonas oryzae pv. oryzae strains seem most closely related to and share several genetic features with pathovar oryzicola despite causing symptoms of bacterial leaf blight. The ability of most Xanthomonas plant pathogenic bacteria to infect their host relies on the action of a specific family of type III effectors called the TAL effectors. These microbial transcription factors are injected into the plant and manipulate the host transcriptome upon binding to the promoters of plant genes. The genes whose induction is of benefit to the pathogen are called susceptibility genes. RNA profiling experiments in rice using the Malian Xoo strain MAI1 and in silico prediction of TAL effector binding sites were carried out to identify candidate targets of TalB, revealing OsTFX1, a bZIP transcription factor previously identified as a bacterial blight S gene, and OsERF#123, which encodes a subgroup IXc AP2/ERF transcription factor.

2018-03-31 | GSE108504 | GEO

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Project description:OsEDS1 is a key regulator of SA-mediated immunity in plants. The OsEDS1 knockout mutant (Oseds1) was characterized and shown to have increased susceptibility to Xanthomonas oryzae pv. oryzae (Xoo) and Xanthomonas oryzae pv. oryzicola (Xoc), suggesting the positive role of OsEDS1 in regulating rice disease resistance. To identify differentially regulated downstream of Oseds1, we performed transcriptome deep sequencing (RNA-seq) of wild type (ZH11) and Oseds1 inoculated with Xanthomonas oryzae pv. Oryzae (PXO99A).

2023-11-25 | GSE248248 | GEO

Dynamic and coordinated expression changes of rice small RNAs in response to Xanthomonas oryzae pv. oryzae

Project description:Endogenous small RNAs are newly identified players in plant immune responses, yet their roles in rice (Oryza sativa) responding to pathogens are still less understood, especially for pathogens that can cause severe yield losses. Here, we examined the small RNA expression profiles of rice leaves at 2, 6, 12, and 24 hours post infection of Xanthomonas oryzae pv. oryzae (Xoo) virulent strain PXO99, the causal agent of rice bacterial blight disease. Dynamic expression changes of some miRNAs and trans-acting siRNAs (ta-siRNAs) were identified, together with a few novel miRNA targets, including a disease resistance gene targeted by osa-miR159a.1. Coordinated expression changes were observed among some miRNA and ta-siRNAs in response to Xoo infection, with small RNAs exhibiting the same expression pattern tended to regulate genes in the same or functional correlated signaling pathways, including auxin and GA signaling pathways, nutrition and defense related pathways, etc. Highly abundant small RNAs with pathogen-responsive expression changes were identified from the exonic region of a protein-coding gene, which may present a new class of functional small RNAs. These findings reveal the dynamic and complex roles of small RNAs in rice-pathogen interactions, and identified new targets for regulating plant immune responses. Examination of the small RNA expression profiles of rice leaves at 2, 6, 12, and 24 hours post infection of Xanthomonas oryzae pv. oryzae (Xoo) virulent strain PXO99

2015-08-31 | E-GEOD-58385 | biostudies-arrayexpress

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Project description:The transcriptomic modulations leading to defense response in rice one hour after inoculation by Xanthomonas oryzae pv oryzae. Xoo and mock inoculated plant of cultivars IET8585 (bacterial leaf blight resistant) and IR-24 (bacterial leaf blight susceptible) were compared.

2012-03-12 | E-MEXP-3388 | biostudies-arrayexpress

Host transcriptional reprogramming in response to the rice bacterial blight pathogen Xanthomonas oryzae pv. oryzae strain BLS354

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