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Transcriptomic analysis of pip5k1 pip5k2 mutant and wild type plants before or after inoculation with powdery mildew Erysiphe cichoracearum

ABSTRACT: Transcriptomic analysis of pip5k1 pip5k2 mutant and wild type plants before or after inoculation with powdery mildew Erysiphe cichoracearum

PROVIDER: PRJNA525816 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8689390_1.fastq.gz	Fastqsanger.gz
	SRR8689390_2.fastq.gz	Fastqsanger.gz
	SRR8689400_1.fastq.gz	Fastqsanger.gz
	SRR8689400_2.fastq.gz	Fastqsanger.gz
	SRR8689410_1.fastq.gz	Fastqsanger.gz

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Transcriptomic analysis of pip5k1 pip5k2 mutant and wild type plants before or after inoculation with powdery mildew Erysiphe cichoracearum

Project description:To explore the transcriptional regulations in pip5k1 pip5k2 mutant and wild type plants before or after inoculation with powdery mildew Erysiphe cichoracearum

2020-03-10 | GSE127919 | GEO

Transcription profiling of Arabidopsis wild type and pen3 mutant plants inoculated with powdery mildew organisms Erysiphe cichoracearum or Blumeria graminis hordei

Project description:Arabidopsis is a host to the fungal powdery mildew pathogen, Erysiphe cichoracearum, and a nonhost to Blumeria graminis f.sp. hordei, the powdery mildew pathogenic on barley. A screen for mutants that allowed increased entry by this inappropriate or nonhost pathogen on Arabidopsis led to the identification of PEN3. While pen3 mutants permitted both increased penetration and increased hyphal growth by B. g. hordei, they were unexpectedly resistant to E. cichoracearum. This resistance was correlated with the appearance of chlorotic patches and was salicylic acid-dependent. Consistent with this observation, microarray analysis revealed that the salicylic acid defense pathway was hyper-induced in pen3 relative to wild type following inoculation with either E. cichoracearum or B. g. hordei. The pen3 phenotypes result from a loss of function of AtPDR8, a ubiquitously and highly expressed ATP binding cassette transporter. PEN3 protein tagged with green fluorescent protein localized to the plasma membrane in uninfected cells. In infected leaves, the protein concentrated to high levels at infection sites and surrounded fungal penetration pegs. We hypothesize that PEN3 may be involved in exporting toxic substrates to sites of infection and that accumulation of these substrates intracellularly in the pen3 mutant may secondarily activate the salicylic acid pathway. Experiment Overall Design: Three week-old wild-type Col and mutant pen3 Arabidopsis thaliana plants were inoculated with Erysiphe cichoracearum, Blumeria graminis hordei, or not inoculated. 1 day post inoculation 16 rosettes were harvested per replicate. 4 replicates were perfomerd per treatment.

2007-10-04 | E-GEOD-3220 | biostudies-arrayexpress

Transcription profiling of Arabidopsis callose synthase deficient (pmr4-1) mutant and wild type plants infected with powdery mildew

Project description:There were two genotypes:,(1) Columbia-0, wild-type (C),(2) pmr4-1 mutant (P), callose synthase deficient mutant (Vogel and Somerville (2000) Proc. Natl. Acad. Sci., USA 97: 1897).,There were two treatments:,(1) uninoculated (U),(2) 3 days after inoculation with the powdery mildew pathogen, Erysiphe cichoracearum, race UCSC (I).,There were four biological replicates, labeled 1, 2, 3 or 4.,Examples of the sample labels are:,CU1 = Columbia-0, uninoculated, replicate 1,CI2 = Columbia-0, 3 days after inoculation with powdery mildew, replicate 2,PU3 = pmr4-1, uninoculated, replicate 3,PI4 = pmr4-1, 3 days after inoculation with powdery mildew, replicate 4.,In total, there were 16 Affymetrix ATH1 GeneChips (2 genotypes x 2 treatments x 4 biological replicates).

2007-07-13 | E-GEOD-431 | biostudies-arrayexpress

Transcription profiling of wild type and mutant Arabidopsis plants innoculated with the host powdery mildew Erysiphe cichoracearum or the non-host barley powdery mildew Blumeria graminis f. sp. hordei

Project description:Attack by the host powdery mildew Erysiphe cichoracearum usually results in successful penetration and rapid proliferation of the fungus on Arabidopsis. By contrast, the nonhost barley powdery mildew Blumeria graminis f. sp. hordei (Bgh) typically fails to penetrate Arabidopsis epidermal cells. In both instances the plant secretes cell wall appositions or papillae beneath the penetration peg of the fungus. Genetic screens for mutations that result in increased penetration of Bgh on Arabidopsis have recently identified the PEN1 syntaxin. Here we examine the role of PEN1 and of its closest homologue, SYP122, identified as a syntaxin whose expression is responsive to infection. pen1 syp122 double mutants are both dwarfed and necrotic, suggesting that the two syntaxins have overlapping functions. Although syp122-1 and the cell wall mur mutants have considerably more pronounced primary cell wall defects than pen1 mutants, these have relatively subtle or no effects on penetration resistance. Upon fungal attack, PEN1 appears to be actively recruited to papillae, and there is a 2-h delay in papillae formation in the pen1-1 mutant. We conclude that SYP122 may have a general function in secretion, including a role in cell wall deposition. By contrast, PEN1 appears to have a basal function in secretion and a specialized defense-related function, being required for the polarized secretion events that give rise to papilla formation.

2007-05-11 | E-SMDB-4008 | biostudies-arrayexpress

comparison of powdery mildew-induced gene expression between Col-0 and the edr1 mutant

Project description:The edr1 mutant of Arabidopsis thaliana displays enhanced resistance to the powdery mildew Golovinomyces cichoracearum, resulting in cell death and an absence of visible disease symptoms. To better characterize and understand the defense response of edr1, a time course of early signaling responses was performed after inoculation with powdery mildew and compared to the responses of wild-type Col-0. These time points represent early stages in the infection process, before any signs of susceptibility or resistance are visible.

2011-01-19 | GSE26679 | GEO

Arabidopsis pen3 mutant and wild type Col-O comparison under host inoculation, nonhost inoculation and no inoculation.

2005-09-30 | GSE3220 | GEO

Comparison of powdery mildew-induced gene expression between wild type (Col-0) and the edr1 mutant in Arabidopsis thaliana

2011-01-19 | E-GEOD-26679 | biostudies-arrayexpress

Transcription profiling of Arabidopsis eds1 mutant and NahG transgenics infection penetration success by the barley powdery mildew Blumeria graminis f. sp. hordei Bgh

Project description:Arabidopsis does not support the growth and asexual reproduction of the barley pathogen, Blumeria graminis f. sp. hordei Bgh). A majority of germlings fail to penetrate the epidermal cell wall and papillae. To gain additional insight into this interaction, we determined whether the salicylic acid (SA) or jasmonate (JA)/ethylene (ET) defence pathways played a role in blocking barley powdery mildew infections. Only the eds1 mutant and NahG transgenics supported a modest increase in penetration success by the barley powdery mildew. We also compared the global gene expression patterns of Arabidopsis inoculated with the non-host barley powdery mildew to those inoculated with a virulent, host powdery mildew, Erysiphe cichoracearum. Genes repressed by inoculations with non-host and host powdery mildews relative to non-inoculated control plants accounted for two-thirds of the differentially expressed genes. A majority of these genes encoded components of photosynthesis and general metabolism. Consistent with this observation, Arabidopsis growth was inhibited following inoculation with Bgh, suggesting a shift in resource allocation from growth to defence. A number of defence-associated genes were induced during both interactions. These genes likely are components of basal defence responses, which do not effectively block host powdery mildew infections. In addition, genes encoding defensins, anti-microbial peptides whose expression is under the control of the JA/ET signalling pathway, were induced exclusively by non-host pathogens. Ectopic activation of JA/ET signalling protected Arabidopsis against two biotrophic host pathogens. Taken together, these data suggest that biotrophic host pathogens must either suppress or fail to elicit the JA/ET signal transduction pathway.

2005-08-23 | E-SMDB-2432 | biostudies-arrayexpress

pmr4 vs. wild-type (May, 2003)

Project description:There were two genotypes: (1) Columbia-0, wild-type (C) (2) pmr4-1 mutant (P), callose synthase deficient mutant (Vogel and Somerville (2000) Proc. Natl. Acad. Sci., USA 97: 1897). There were two treatments: (1) uninoculated (U) (2) 3 days after inoculation with the powdery mildew pathogen, Erysiphe cichoracearum, race UCSC (I). There were four biological replicates, labeled 1, 2, 3 or 4. Examples of the sample labels are: CU1 = Columbia-0, uninoculated, replicate 1 CI2 = Columbia-0, 3 days after inoculation with powdery mildew, replicate 2 PU3 = pmr4-1, uninoculated, replicate 3 PI4 = pmr4-1, 3 days after inoculation with powdery mildew, replicate 4. In total, there were 16 Affymetrix ATH1 GeneChips (2 genotypes x 2 treatments x 4 biological replicates). Keywords: repeat sample

2003-08-15 | GSE431 | GEO

Cytological and molecular responses of Medicago truncatula to Erysiphe pisi

Project description:For transcript analysis of early hypersensitive and susceptible responses of Medicago truncatula to the powdery mildew pathogen, Erysiphe pisi, we compared transcripts from pathogen-inoculated and control (non-inoculated) plants 12 h after infection in resistant (A14), partially resistant (A20), and susceptible (DZA315.16) genotypes. Published in: Medicago truncatula to the powdery mildew 1 and anthracnose pathogens, Erysiphe pisi and Colletotrichum trifolii. Molecular Plant Pathology 8(3):307-319 Keywords: 1 time points and 3 genotypes

2007-01-25 | GSE6840 | GEO

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