Microbiome of Brassica oleracea leaves
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB71999 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR12519738_1.fastq.gz | Fastqsanger.gz | |||
| ERR12519738_2.fastq.gz | Fastqsanger.gz | |||
| ERR12519739_1.fastq.gz | Fastqsanger.gz | |||
| ERR12519739_2.fastq.gz | Fastqsanger.gz | |||
| ERR12519740_1.fastq.gz | Fastqsanger.gz |
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Project description:Gene expression changes during the initial stages of black spot disease caused by Alternaria brassicicola on Brassica oleracea (Brassica oleracea var. capitata f. alba, white cabbage) leaves were investigated with Arabidopsis thaliana oligonucleotide microarrays. Transcriptional profiling of infected B. oleracea leaves revealed that photosynthesis was the most negatively regulated biological process. The negative regulation of 6 photosynthesis-related genes, mainly the genes involved in the photosynthesis light reaction and Calvin cycle, was observed as early as 12 hours post infection (hpi). It progressed through 48-hpi stage, when 44 down-regulated photosynthesis-related genes were detected. The analyses of infected leaves at microscopic, ultrastructural and physiological levels supported the microarray-based observations and indicated that the photosynthetic processes are suppressed in B. oleracea as a result of the fungal infection.
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Project description:Deep sequencing of mRNA from seven different tissues of Brassica oleracea
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Project description:Plant microRNAs are short (~21 nt), non-coding molecules that regulate gene expression by targeting mRNA cleavage or protein translation inhibition. In this manner, they play many important roles in the cells of living organisms. One of the plant species in which the entire set of miRNAs has not been yet completely identified is Brassica oleracea var. capitata (cabbage). For this reason and for the economic and nutritional importance of this food crop, Illumina high-throughput small RNAs sequencing has been performed to discover novel and conserved miRNAs in the mature cabbage leaves. In this study, raw reads generated from three small RNA libraries were bioinformatically processed and further analyzed to select sequences homologous to known B. oleracea and other plant miRNAs. As a result of this step, 267 conserved miRNAs (belonging to 62 families) have been discovered. The remaining unannotated tags were used in the prediction and evaluation of novel miRNAs, which resulted in the 26 potential miRNAs proposal. The expression of 13 selected miRNAs was analyzed by northern blot hybridization. To determine the functions and processes that these molecules may potentially regulate in cabbage leaves, GO annotation, GO enrichment analysis and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway mapping of the predicted targets were performed. Taken together, for the first time, the large set of miRNAs was identified in the mature cabbage leaves. Potential target designation for these miRNAs may suggest their important role in the plant growth, development and other primary biological processes. The presented study not only supplements the knowledge about B. oleracea miRNAs, but also may be used in other researches concerning the improvement of the cabbage cultivation.
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Project description:au11_04_benzene - benzene effects on brassica leaves - Improving the knowledge of the metabolic pathways of benzene in higher plants. - Cabbages (Brassica oleracea variety Prover), placed in a 300L exposure chamber, are directly subjected to a single dose of benzene (3ppm) for 24 hours.
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Project description:We investigated the expression profiles and genomic organization of PP2Cs-encoding genes in Brassica oleracea. Analysis of cDNA macroarray transcription profiles for Brassica oleracea and Arabidopsis thaliana revealed significant differences in the expression of a gene encoding protein phosphatase 2C, ABI1, a member of the group A PP2C. To gain insight into the ABA signaling network conservation in a model plant and its crop relatives group A PP2C genes in B. oleracea have been identified and functionally characterized. Twenty homologous sequences were identified as putative members of the group A PP2Cs (BolC.PP2Cs). Phylogenetic analysis revealed that the B. oleracea homologues are closely related to the particular members of the A. thaliana PP2C family. The genetic analysis has corroborated the presence of 2 to 3 copies for almost all of the PP2Cs examined, which corresponded to the unique genes in the A. thaliana genome. Gene expression analyses showed that among 15 PP2Cs-encoding genes studied in B.oleracea, BolC.ABI2, BolC.HAB1, BolC.HAB2.a-c, and BolC.PP2CA.a were drought-induced. However, in contrary to AtPP2Cs, only BolC.ABI1.a-b, BolC.ABI2 and BolC.PP2CA.a were ABA-responsive at the time points tested. Our results indicate that in B. oleracea PP2C-based drought stress signaling has evolved distinctly in comparison to A. thaliana. It is hypothesized that different reactions of particular B. oleracea PP2C genes to the water stress and ABA treatment may indicate lower conservation of their specificity in stress-induced reversible phosphorylation-based protein network operating in B. oleracea and A. thaliana.
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Project description:We report here NGS RNA-seqencing datasets for three different vernalization time course of Brassica oleracea plants
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Project description:We investigated the expression profiles and genomic organization of PP2Cs-encoding genes in Brassica oleracea. Analysis of cDNA macroarray transcription profiles for Brassica oleracea and Arabidopsis thaliana revealed significant differences in the expression of a gene encoding protein phosphatase 2C, ABI1, a member of the group A PP2C. To gain insight into the ABA signaling network conservation in a model plant and its crop relatives group A PP2C genes in B. oleracea have been identified and functionally characterized. Twenty homologous sequences were identified as putative members of the group A PP2Cs (BolC.PP2Cs). Phylogenetic analysis revealed that the B. oleracea homologues are closely related to the particular members of the A. thaliana PP2C family. The genetic analysis has corroborated the presence of 2 to 3 copies for almost all of the PP2Cs examined, which corresponded to the unique genes in the A. thaliana genome. Gene expression analyses showed that among 15 PP2Cs-encoding genes studied in B.oleracea, BolC.ABI2, BolC.HAB1, BolC.HAB2.a-c, and BolC.PP2CA.a were drought-induced. However, in contrary to AtPP2Cs, only BolC.ABI1.a-b, BolC.ABI2 and BolC.PP2CA.a were ABA-responsive at the time points tested. Our results indicate that in B. oleracea PP2C-based drought stress signaling has evolved distinctly in comparison to A. thaliana. It is hypothesized that different reactions of particular B. oleracea PP2C genes to the water stress and ABA treatment may indicate lower conservation of their specificity in stress-induced reversible phosphorylation-based protein network operating in B. oleracea and A. thaliana. For each genotype 7 samples were analysed; 4 controls and 3 samples extracted from drought-treated plants. The reliability and reproducibility of the macroarray analyses were ensured by using biological replicates in the experiment.
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