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Paulownia witches'-broom phytoplasma

ABSTRACT: Paulownia witches'-broom phytoplasma overview

PROVIDER: PRJNA188034 | ENA |

REPOSITORIES: ENA

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			Action	DRS
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	SRR12800422_subreads.fastq.gz	Fastqsanger.gz

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Paulownia witches'-broom phytoplasma

Project description:Paulownia witches'-broom phytoplasma Genome sequencing and assembly

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Phytoplasma induced changes in acetylatome and succinylatome provide evidence for involvement of acetylated proteins in Paulownia witches’ broom

Project description:Lysine acetylation and succinylation are post-translational modifications of proteins, and have been shown to play roles in plant response to pathogen infection. Phytoplasma infection can directly alter multiple metabolic processes in Paulownia and lead to Paulownia witches’ broom (PaWB), the major cause of Paulownia mortality worldwide. To explore the extent and function of lysine acylations during phytoplasma infection, we investigated global proteome, acetylome, and succinylome of phytoplasma-infected Paulownia tomentosa seedlings. In total, we globally yield 8963 proteins, 2893 acetylated, and 1271 succinylated proteins. Among them, 425 substrates were simultaneously acetylated and succinylated. Comparative analysis revealed that 276 proteins, 546 acetylated proteins and 5 succinylated proteins were associated with PaWB. Our results suggested that acetylation may be more important than succinylation in response to phytoplasma infection. Enzymatic assays showed that acetylation modified the activities of protochlorophyllide reductase and RuBisCO in phytoplasma-infected seedlings. On the basis of these results, a model to elucidate the molecular mechanism responses to PaWB was proposed and this research offer a resource for functional studies on the effects of acetylation on protein function.

2019-04-04 | PXD012701 | Pride

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Project description:Here we performed a transcriptomic study on PaWB phytoplasma-infected Paulownia sp. using Solexa/Illumina’s high-throughput digital gene expression (DGE) system. 4 DGE libraries (from 2 virus-infected samples and 2 healthy samples) were constructed, and the gene expression variations between the PaWB phytoplasma-infected (diseased) sample and the corresponding healthy sample were compared. Thousands of differentially expressed genes were obtained by the comparison, and KEGG pathway analysis of these genes suggested that many biological processes were responded to PaWB infection.

2014-10-01 | GSE42087 | GEO

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Digital gene expression (DGE) of PaWB phytoplasma-infected Paulownia witches

Project description:Here we performed a transcriptomic study on PaWB phytoplasma-infected Paulownia sp. using Solexa/IlluminaM-bM-^@M-^Ys high-throughput digital gene expression (DGE) system. 4 DGE libraries (from 2 virus-infected samples and 2 healthy samples) were constructed, and the gene expression variations between the PaWB phytoplasma-infected (diseased) sample and the corresponding healthy sample were compared. Thousands of differentially expressed genes were obtained by the comparison, and KEGG pathway analysis of these genes suggested that many biological processes were responded to PaWB infection. To investigate the response of Paulownia sp. to PaWB infection, we collected four samples in two groups, namely the tissue cultured group (containing healthy sample TH and diseased sample TD) and field-grown group (containing healthy sample FH and diseased sample FD). Four individual tag libraries from these samples were constructed in parallel. For the gene expression analysis, the digital gene expression (DGE) data of diseased sample were compared to that of healthy sample in each group to obtain the gene expression variations.

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Project description:Candidatus Phytoplasma ziziphi isolate:Jujube witches-broom disease Genome sequencing

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Transcriptomic analysis of Paulownia infected by Paulownia witches'-broom Phytoplasma.

Project description:Phytoplasmas are plant pathogenic bacteria that have no cell wall and are responsible for major crop losses throughout the world. Phytoplasma-infected plants show a variety of symptoms and the mechanisms they use to physiologically alter the host plants are of considerable interest, but poorly understood. In this study we undertook a detailed analysis of Paulownia infected by Paulownia witches'-broom (PaWB) Phytoplasma using high-throughput mRNA sequencing (RNA-Seq) and digital gene expression (DGE). RNA-Seq analysis identified 74,831 unigenes, which were subsequently used as reference sequences for DGE analysis of diseased and healthy Paulownia in field grown and tissue cultured plants. Our study revealed that dramatic changes occurred in the gene expression profile of Paulownia after PaWB Phytoplasma infection. Genes encoding key enzymes in cytokinin biosynthesis, such as isopentenyl diphosphate isomerase and isopentenyltransferase, were significantly induced in the infected Paulownia. Genes involved in cell wall biosynthesis and degradation were largely up-regulated and genes related to photosynthesis were down-regulated after PaWB Phytoplasma infection. Our systematic analysis provides comprehensive transcriptomic data about plants infected by Phytoplasma. This information will help further our understanding of the detailed interaction mechanisms between plants and Phytoplasma.

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