The role of cytokinins in clubroot disease
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PROVIDER: PRJEB12261 | ENA |
REPOSITORIES: ENA
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Project description:Clubroot (Plasmodiophora brassicae) is a pathogen of Brassicaceae that causes significant reductions in yield as a consequence of gall formation in the root and hypocotyl of infected plants. The pathogen hijacks host vascular cambium development and cytokinins are implicated in this process. Microarray analysis was used to investigate changes in cytokinin metabolism during gall formation of clubroot-infected ipt1;3;5;7 mutants Arabidopsis thaliana. These mutants have severely restricted synthesis of host cytokinins (isopentenyl adenine and trans zeatin) and fail to form a vascular cambium and, as a consequence, do not undergo secondary thickening. Infection of these mutants allows the impact of pathogen-derived cytokinin synthesis to be observed.
2016-01-12 | E-MTAB-4201 | biostudies-arrayexpress
Project description:Clubroot (Plasmodiophora brassicae) is a pathogen of Brassicaceae that causes significant reductions in yield as a consequence of gall formation in the root and hypocotyl of infected plants. The pathogen hijacks host vascular cambium development and cytokinins are implicated in this process. RNASeq was used to investigate changes in cytokinin metabolism during gall formation of clubroot-infected Arabidopsis thaliana. RNASeq analysis of infected tissue showed that host cytokinin metabolism was strongly down-regulated both at the onset (16 DPI) and late (26 DPI) stages of gall formation. Expression of host genes associated with cytokinin biosynthesis, signalling, degradation and conjugation was strongly repressed. Two isopentenyltransferase genes associated with cytokinin biosynthesis are present in the P. brassicae genome and are expressed throughout gall formation.
2016-07-04 | E-MTAB-4176 | biostudies-arrayexpress
Project description:Canola (oilseed rape, Brassica napus L.), is susceptible to infection by the biotrophic protist Plasmodiophora brassicae, the causal agent of clubroot. To understand the roles of microRNAs (miRNAs) during the post-transcriptional regulation of disease initiation and progression, we have characterized the changes in miRNA expression profiles in canola roots during clubroot disease development and have compared these to uninfected roots. Two different stages of clubroot development were targeted in this miRNA profiling study: an early time of 10-dpi for disease initiation and a later 20-dpi, by which time the pathogen had colonized the roots (as evident by visible gall formation and histological observations). P. brassicae responsive miRNAs were identified and validated by qRT-PCR of miRNAs and the subsequent validation of the target mRNAs through starBase degradome analysis, and through 5’ RLM-RACE. This study identifies putative miRNA-regulated genes with roles during clubroot disease initiation and development. Putative target genes identified in this study included: transcription factors (TFs), hormone-related genes, as well as genes associated with plant stress response regulation such as cytokinin, auxin/ethylene response elements. The results of our study may assist in elucidating the role of miRNAs in post-transcriptional regulation of target genes during disease development and may contribute to the development of strategies to engineer durable resistance to this important phytopathogen.
2013-11-28 | GSE51590 | GEO
Project description:Canola (oilseed rape, Brassica napus L.), is susceptible to infection by the biotrophic protist Plasmodiophora brassicae, the causal agent of clubroot. To understand the roles of microRNAs (miRNAs) during the post-transcriptional regulation of disease initiation and progression, we have characterized the changes in miRNA expression profiles in canola roots during clubroot disease development and have compared these to uninfected roots. Two different stages of clubroot development were targeted in this miRNA profiling study: an early time of 10-dpi for disease initiation and a later 20-dpi, by which time the pathogen had colonized the roots (as evident by visible gall formation and histological observations). P. brassicae responsive miRNAs were identified and validated by qRT-PCR of miRNAs and the subsequent validation of the target mRNAs through starBase degradome analysis, and through 5M-bM-^@M-^Y RLM-RACE. This study identifies putative miRNA-regulated genes with roles during clubroot disease initiation and development. Putative target genes identified in this study included: transcription factors (TFs), hormone-related genes, as well as genes associated with plant stress response regulation such as cytokinin, auxin/ethylene response elements. The results of our study may assist in elucidating the role of miRNAs in post-transcriptional regulation of target genes during disease development and may contribute to the development of strategies to engineer durable resistance to this important phytopathogen. In this miRNA-microarray experiment a total of 4 samples were analyzed with their 3 biological replicates. In which 2 samples C 10 DAY and C 20 DAY was used as referrence contols.
2013-11-28 | E-GEOD-51590 | biostudies-arrayexpress
Project description:The Role of Myeloid Cells in Parkinson's Disease
| PRJNA722058 | ENA
Project description:The Role of Myeloid Cells in Parkinson's Disease
| PRJNA722059 | ENA
Project description:Although Plasmodiophora brassicae is one of the most common pathogens worldwide, the causal agent of clubroot disease in Brassica crops, resistance mechanisms to it are still only poorly understood. To study the early defense response induced by P. brassicae infection, a global transcriptome profiling of the roots of two near-isogenic lines (NILs) of clubroot-resistant (CR BJN3-2) and clubroot-susceptible (BJN3-2) Chinese cabbage (Brassica rapa) was performed by RNA-seq. Among the 42,730 unique genes mapped to the reference genome of B. rapa, 1,875 and 2,103 genes were found to be up- and down-regulated between CR BJN3-2 and BJN3-2, respectively, at 0, 12, 72, and 96 hours after inoculation (hai). Functional annotation showed that most of the differently expressed genes are involved in metabolism, transport, signal transduction, and defense. Of the genes assigned to plant-pathogen interactions, 151 showed different expression patterns between two NILs, including genes associated with pathogen-associated molecular patterns (PAMPs) and effectors recognition, calcium ion influx, hormone signaling, pathogenesis-related (PR) genes, transcription factors, and cell wall modification. In particular, the expression level of effector receptors (resistance proteins), PR genes involved in salicylic acid (SA) signaling pathway, were higher in clubroot-resistant NIL, while half of the PAMP receptors were suppressed in CR BJN3-2. This suggests that there was a more robust effector-triggered immunity (ETI) response in CR BJN3-2 and that SA signaling was important to clubroot resistance. The dataset generated by our transcriptome profiling may prove invaluable for further exploration of the different responses to P. brassicae between clubroot-resistant and clubroot-susceptible genotypes, and it will strongly contribute to a better understanding of the molecular mechanisms of resistance genes of B. rapa against P. brassicae infection.
2016-02-01 | GSE74044 | GEO
Project description:The Role of Circadian Clock System in Chronic Kidney Disease.
| PRJNA779952 | ENA
Project description:Clubroot is a destructive root disease in Brassica species caused by a protist pathogen, Plasmodiophora brassicae. There is limited omics information available in response to the pathogen, especially in the early stages of pathogenesis. The goal of this study is to identify proteins (therefore genes) that are potentially involved in mediating resistance against clubroot pathogens and develop gene-specific markers to assist in molecular breeding.
2024-02-01 | PXD038670 | Pride
Project description:Sex specific role of KDM5 demethylases in Alcohol-associated Liver Disease
| PRJNA802555 | ENA