Ontology highlight
ABSTRACT:
PROVIDER: PRJNA784769 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR17071800_1.fastq.gz | Fastqsanger.gz | |||
| SRR17071800_2.fastq.gz | Fastqsanger.gz | |||
| SRR17071801_1.fastq.gz | Fastqsanger.gz | |||
| SRR17071801_2.fastq.gz | Fastqsanger.gz | |||
| SRR17071802_1.fastq.gz | Fastqsanger.gz |
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Project description:Membraneless biomolecular condensates formed through liquid-liquid phase separation (LLPS) are known to play key roles in plant growth and stress responses. How plant viruses utilize LLPS to escape host immunity remains largely unexplored. Here, we present evidence demonstrating that the P6 protein encoded by southern rice black-streaked dwarf virus (SRBSDV) undergoes LLPS. P6 interacts with OsTSN1 and triggers the assembly of P6-OsTSN1-containing droplets that co-localize with stress granules (SGs). Within these P6-OsTSN1-containing droplets, P6 enhances the nuclease activity of OsTSN1 via promoting its multimerization to degrade transcripts with G-A-rich motifs of two transcription factors (TFs), OsNAC15 and OsLHY. These TFs regulate the transcription of OsJAZ6, OsJAZ12, and OsATG8C, involved in jasmonic acid (JA)- and autophagy-associated defense pathways in plants. Additionally, the degradation of OsNAC15 and OsLHY transcripts in the P6-OsTSN1-containing droplets in SGs weakens JA- and autophagy-mediated defenses in rice, facilitating SRBSDV infection. Interestingly, similar to SRBSDV P6, intrinsically disordered region (IDR)-containing RNA silencing suppressors encoded by other rice viruses such as rice black-streaked dwarf virus and rice stripe virus, also interact with OsTSN1, promoting the degradation of OsNAC15 and OsLHY transcripts to enhance viral infection. Our findings indicate that OsTSN1 acts as a central positive regulator of virus infection in rice, convergently co-opted by viruses. These insights help us to better understand the roles of LLPS and OsTSN1 in virus infection in rice.
2025-07-07 | GSE283861 | GEO
Project description:Membraneless biomolecular condensates formed through liquid-liquid phase separation (LLPS) are known to play key roles in plant growth and stress responses. How plant viruses utilize LLPS to escape host immunity remains largely unexplored. Here, we present evidence demonstrating that the P6 protein encoded by southern rice black-streaked dwarf virus (SRBSDV) undergoes LLPS. P6 interacts with OsTSN1 and triggers the assembly of P6-OsTSN1-containing droplets that co-localize with stress granules (SGs). Within these P6-OsTSN1-containing droplets, P6 enhances the nuclease activity of OsTSN1 via promoting its multimerization to degrade transcripts with G-A-rich motifs of two transcription factors (TFs), OsNAC15 and OsLHY. These TFs regulate the transcription of OsJAZ6, OsJAZ12, and OsATG8C, involved in jasmonic acid (JA)- and autophagy-associated defense pathways in plants. Additionally, the degradation of OsNAC15 and OsLHY transcripts in the P6-OsTSN1-containing droplets in SGs weakens JA- and autophagy-mediated defenses in rice, facilitating SRBSDV infection. Interestingly, similar to SRBSDV P6, intrinsically disordered region (IDR)-containing RNA silencing suppressors encoded by other rice viruses such as rice black-streaked dwarf virus and rice stripe virus, also interact with OsTSN1, promoting the degradation of OsNAC15 and OsLHY transcripts to enhance viral infection. Our findings indicate that OsTSN1 acts as a central positive regulator of virus infection in rice, convergently co-opted by viruses. These insights help us to better understand the roles of LLPS and OsTSN1 in virus infection in rice.
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Project description:Rice black streak dwarf virus (RBSDV) is the causal agent of rice black streak dwarf disease which causes severe loss of rice yield in Asia countries. In this study, we have analyzed the relationship between symptom and host gene responses by RBSDV infection.
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Project description:To better understand the response mechanism of rice plants to Rice black-streaked dwarf virus (RBSDV) infection, we performed a comparative transcriptome analysis between the RBSDV-infected and non-infected rice plants. A total of 1342 mRNAs and 22 lncRNAs were identified to be differentially expressed after RBSDV infection. Most differentially expressed transcripts involved in the plant-pathogen interaction pathway were upregulated after RBSDV infection, indicating the activation of rice defense response by RBSDV. A network of differentially expressed lncRNAs (DElncRNAs) and mRNAs (DEmRNAs) was then constructed. In this network, there are 56 plant-pathogen interaction-related DEmRNAs co-expressing with 20 DElncRNAs, suggesting these DElncRNAs and DEmRNAs may play essential roles in rice innate immunity against RBSDV.
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Project description:Maize rough dwarf disease (MRDD) is a severe disease that has been occurring frequently in southern China and many other Asian countries. MRDD is caused by the infection of Rice black streaked dwarf virus (RBSDV) and leads to significant economic losses in maize production. To well understand the destructive effects of RBSDV infection on maize growth, comparative proteomic analysis of maize seedlings under RBSDV infection was performed using an integrated approach involving LC-MS/MS and TMT labeling. Our study identified 7615 maize proteins, of which 6319 proteins were quantified. A total of 116 differentially expressed proteins (DEPs) were identified, including 35 up- and 81 down-regulated proteins under RBSDV infection. Enrichment analysis showed that the DEPs were most strongly associated with Cyanoamino acid metabolism, protein processing in ER, and ribosome-related pathways. Two sulfur metabolism-related proteins were significantly reduced, indicating that sulfur may participate in the resistance against RBSDV infection. Furthermore, 15 DEPs involved in six metabolic pathways were identified in maize under RBSDV infection. Our data revealed that the responses of maize to RBSDV infection were controlled by various metabolic pathways.
2017-12-18 | PXD008186 | Pride
Project description:Both Southern rice black-streaked dwarf virus (SRBSDV) and Rice ragged stunt virus (RRSV) belong to the family Reoviridae, and synergistic infection of these two viruses commonly occurs in the field. This study revealed that both SRBSDV and RRSV affect the RNA interference (RNAi) pathway and form different virus-derived interfering RNA (vsiRNA) profiles in rice. Co-infection of rice by SRBSDV and RRSV up-regulated the expression of rice Dicer and DICER-like (DCL) proteins but down-regulated the expression of rice RNA-dependent RNA polymerases (RDRs), and the accumulation of vsiRNAs of either RBSDV or RRSV was decreased compared with that in singly infected plants. The majority of SRBSDV vsiRNAs were 21 nt or 22 nt in length, whether plants were singly infected with SRBSDV or co-infected with RRSV. On the other hand, the majority of RRSV vsiRNAs were 20 nt, 21 nt, or 22 nt in length, among which those 20 nt in length accounted for the largest proportion; co-infection with SRBSDV further increased the proportion of 20 nt vsiRNAs and decreased the proportion of 21 nt vsiRNAs. Co-infection had no effects on the strand favoritism and hot spots of the vsiRNAs, but changed the bias of the 5' terminal nucleotide significantly. This study provides a reference for further study on the pathogenesis and synergistic mechanism of SRBSDV and RRSV.
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Project description:Rice black streak dwarf virus (RBSDV) is the causal agent of rice black streak dwarf disease which causes severe loss of rice yield in Asia countries. In this study, we have analyzed the relationship between symptom and host gene responses by RBSDV infection. Comparison between RBSDV and mock infected rice. Biological replicates: 3 control, 3 infected, independently grown and harvested. 1 samples derived from 5 plants grown under same conditons
2012-12-01 | E-GEOD-34263 | biostudies-arrayexpress
Project description:Plant virus triggers numerous responses in its insect vectors. Using the iTRAQ-based quantitative proteomics analysis. Early responses of the insect vector small brown planthopper (Laodelphax striatellus Fallén, SBPH) after acquiring Rice black-streaked dwarf virus (RBSDV) at 3 days and 5 days post first access to disease plants (padp), respectively, were revealed. A total of 582 differentially abundant proteins (DAPs) in SBPH with a fold change > 1.500 or <0.667 (p-value<0.05) were identified. The proteomic analysis in SBPH at 3 days padp revealed 106 high abundant proteins and 193 low abundant proteins, while 5 days padp revealed 214 high abundant proteins and 182 low abundant proteins. Among them, 51 high abundant proteins and 42 low abundant proteins were consistently differentially abundant at both 3 days and 5 days padp.
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Project description:MicroRNAs (miRNAs) are endogenous small noncoding RNAs (18–25 nt) that are involved in many physiological processes including development, cancer, immunity, apoptosis and host-microbe interactions through posttranscriptional regulation of gene expression. In this study, we measured the profile of small RNAs in the midgut of Laodelphax striatellus after rice black-streaked dwarf virus (RBSDV) infection. We identified 19 insect miRNAs that were differentially expressed compared with the RBSDV-free (VF) control. Among them, seven were upregulated and 12 downregulated in the RB midgut. Four miRNAs exhibited high expression levels (>500 reads) in either the VF or RBSDV-infected (RB) midgut; among them, three were up-regulated. This study identified critical miRNAs involved in the RBSDV infection in the midgut of L. striatellus.
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