Arabidopsis thaliana
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PROVIDER: PRJNA183215 | ENA |
REPOSITORIES: ENA
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Project description:In this work, 454 pyrosequencing was used to build up a 3’ cDNA fragment library from a normalized library constructed from pooled RNA samples extracted at different stages of A. quisqualis mycoparasitization process (recognition, early and late parasitization). An extensive catalogue of unique transcripts was compiled and used to develop a microarray for large-scale analysis of genes involved in this mycoparasitism. We examined the transcriptomic changes that occur during the first stage of mycoparasitism (conidial germination). Our results showed that 1,776 transcripts are regulated during germination in the presence of powdery mildew. A striking feature of the gene catalogue was the presence of a number of genes predicted to encode proteins involved in the production of, glucanases, chitinases and extracellular proteases. This suggests that A. quisqualis causes the degradation of powdery mildew macromolecular constituents to provide the carbon skeletons and energy for the synthesis of proteins and other components destined for the developing of the mycelium.
2014-07-11 | GSE22888 | GEO
Project description:We used two wheat genotypes, the susceptible wheat cultivar ‘8866 ’(S) and its near isogenic line with single powdery mildew resistance gene ‘pm30’ (R), to investigate gene expression changes in response to powdery mildew infection by using Wheat Genome Array
2011-02-15 | GSE27320 | GEO
Project description:Arabidopsis ABA HYPERSENSITIVE1 (ABH1) / CAP-BINDING-PROTEIN80 functions in cap-binding, splicing, ABA and stress response signaling and in the biogenesis of microRNAs (miRNAs). SUPPRESSOR OF GENE SILENCING3 (SGS3) plays a crucial role in post transcriptional gene silencing (PTGS). We show that abh1 sgs3 double mutant manifests pleiotropic phenotypes including altered ABA sensitivity in seed germination, fused cotyledons, delayed growth in root initiation and leaf production, accelerated juvenile-to-adult phase transition and flowering time, short and bent siliques with ectopic carpelloid tissues, reduced seed set due to altered carpel structure and pollen tube growth, and increased resistance to powdery mildew infection. A systems approach using meta-analysis of whole genome tiling microarray datasets for mutants of PTGS, RNA processing, and responses to environmental stress was taken to design a 135k feature custom microarray to probe the molecular bases of these phenotypes. Results confirmed documented effects of ABA or abh1 on precursor MIRNA expression (pre-MIR159, pre-MIR168) and identified novel miRNAs and their targets regulated by ABA (pre-MIR408, LACCASE12 and -13; pre-MIR824) or elevated in abh1 sgs3 double mutant (pre-MIR156A,C; pre-MIR164B, pre-MIR167A, pre-MIR408, At5g15845/CONSTANS-LIKE1-cis-NAT-RNA). miR156 targets SQUAMOSA-PROMOTER-BINDING-PROTEIN-LIKE genes that spawn siRNAs and control phase change; miR164 targets CUP-SHAPED-COTYLEDON1 and -2 genes; miR166 methylates target PHABULOSA genomic DNA in trans; miR167 targets AUXIN RESPONSE FACTOR 6 (ARF6) and ARF8 which regulate both female and male reproduction; miR408 targets a plantacyanin which is expressed predominantly in the transmitting tract of the pistil and affects pollen tube guidance on the stigma. We also identified sgs3 by ABA interactions on gene expression which reveal potential nodes in regulatory networks linking ABA, mRNA processing and PTGS with development.
2014-11-19 | GSE42796 | GEO
Project description:In this work, 454 pyrosequencing was used to build up a 3M-bM-^@M-^Y cDNA fragment library from a normalized library constructed from pooled RNA samples extracted at different stages of A. quisqualis mycoparasitization process (recognition, early and late parasitization). An extensive catalogue of unique transcripts was compiled and used to develop a microarray for large-scale analysis of genes involved in this mycoparasitism. We examined the transcriptomic changes that occur during the first stage of mycoparasitism (conidial germination). Our results showed that 1,776 transcripts are regulated during germination in the presence of powdery mildew. A striking feature of the gene catalogue was the presence of a number of genes predicted to encode proteins involved in the production of, glucanases, chitinases and extracellular proteases. This suggests that A. quisqualis causes the degradation of powdery mildew macromolecular constituents to provide the carbon skeletons and energy for the synthesis of proteins and other components destined for the developing of the mycelium. Microarray oligo probes were designed based on 454 sequencing of 3'-ends of transcripts of a sample constituted by pooling RNAs extracted at different stages of A. quisqualis mycoparasitization process (recognition, early and late parasitization)
2014-07-11 | E-GEOD-22888 | biostudies-arrayexpress
Project description:Purpose: The powdery mildew fungus, Blumeria graminis, is an obligate biotrophic pathogen of cereals and has significant impact on food security (Dean et al., 2012). B. graminis f. sp. hordei (Bgh) is the causal agent of powdery mildew on barley (Hordeum vulgare L.). We sought to address the temporal regulation of membrane trafficking associated gene expression in barley-powdery mildew interactions. We created an isogenic panel of immune signaling mutants to address three main questions: (i) which Blumeria secreted proteins are differentially regulated in response to different compromised genotypes, (ii) which barley membrane trafficking genes are altered in response to pathogen attack, and (iii) how are these genes interacting across genotypes and infection stages.
2018-05-29 | GSE101304 | GEO
Project description:We used two wheat genotypes, the susceptible wheat cultivar ‘8866 ’(S) and its near isogenic line with single powdery mildew resistance gene ‘pm30’ (R), to investigate gene expression changes in response to powdery mildew infection by using Wheat Genome Array wheat young leveas of near isogenic lines before or 12 hours after powdery mildew infection were selected for RNA extraction and hybridization on Affymetrix microarrays.The leaf samples were harvested from three independent biological replicates, and the leaves without inoculation were regarded as control.
2011-02-15 | E-GEOD-27320 | biostudies-arrayexpress
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
Project description:Purpose: The powdery mildew fungus, Blumeria graminis, is an obligate biotrophic pathogen of cereals and has significant impact on food security (Dean et al., 2012. Molecular Plant Pathology 13 (4): 414-430. DOI: 10.1111/j.1364-3703.2011.00783.x). Blumeria graminis f. sp. hordei (Bgh) is the causal agent of powdery mildew on barley (Hordeum vulgare L.). We sought to discover novel transcripts expressed following barley infection with blumeria.
2021-03-30 | GSE165730 | GEO
Project description:Powdery mildew caused by Erysiphe cruciferarum, is an epidemic of oil rapeseed (Brassica napus) growing worldwide, but resistant germplasm is rare in this species. We obtained the hybrid seeds of distant hybridization between powdery-mildew-immune Brassica carinata cultivar ‘White flower’ and susceptible B. napus cultivar ‘Zhongshuang11’. Five lines in the BC1F3 generation (F3 after backcross to 'Zhongshuang11') were identified to be resistant or moderately resistant. In order to identify the important biological responses to powdery mildew, the foliar transcriptomes of the resistant and susceptible plants in these progenies after powdery mildew inoculation were compared by using Illumina RNA-seq. We identified 10,454 differential expression genes (DEGs) and 1050 genes out of them are related to disease resistance. There were 271 DEGs in Group Resistance expressed at least two fold higher than in group S, while 779 DGEs expressed two fold lower. The genes highly expressed in Group Resistance are those encoding the proteins: (1) related to wax, chloroplast and cell wall metabolism, such as KCS6, CSP41B, RWA, callose synthetase 3, pectinase 9, fructosidase 2, 9s-lipoxygenase LOX2, etc.; (2) kinases including RKL, ERECTA, BAK1, BAM2, LysM receptor like kinase, and lipid transfer protein kinase ERl1 and ERl2; (3) broad spectrum powdery mildew resistance proteins RPW8, calmodulin MLO2, PMR5, MLP328, EDR2, RPS4 and RPS6, etc. In group susceptible, pectinesterase, cytochrome CYP81f2, LOX1, cysteine rich receptor protein kinases and serine / threonine protein kinases such as MEKK, RLK6, CRK45, APK1, BRl3, WAK1, WAK10, etc., and TIR-NB-LRR receptor like proteins R1M1, DSC1, DSC2 and pathogenesis-related protein PR-1 etc. were the most activated genes. The results provide the preliminarily knowledge about molecular mechanism in rapeseed defense response to powdery mildew.
2021-11-11 | GSE188377 | GEO
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