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Salicylic acid and RNA interference mediate antiviral immunity of plant stem cells (Previous preprint title: A hormone-activated mobile RNAi pathway defends plant stem cells from virus infection)

ABSTRACT: Salicylic acid and RNA interference mediate antiviral immunity of plant stem cells (Previous preprint title: A hormone-activated mobile RNAi pathway defends plant stem cells from virus infection)

PROVIDER: PRJNA1013591 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25933700.fastq.gz	Fastqsanger.gz
	SRR25933701.fastq.gz	Fastqsanger.gz
	SRR25933702.fastq.gz	Fastqsanger.gz
	SRR25933703.fastq.gz	Fastqsanger.gz
	SRR25933704.fastq.gz	Fastqsanger.gz

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Salicylic acid and RNA interference mediate antiviral immunity of plant stem cells (Previous preprint title: A hormone-activated mobile RNAi pathway defends plant stem cells from virus infection)

Project description:Study on the role of Arabidopsis thaliana RDR1 and other RNAi factors in the exclusion of RNA viruses from the shoot apical meristem stem cells

2023-10-09 | GSE242499 | GEO

A hormone-activated mobile RNAi pathway defends plant stem cells from virus infection

Project description:A hormone-activated mobile RNAi pathway defends plant stem cells from virus infection

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A hormone-activated mobile RNAi pathway defends plant stem cells from virus infection

Project description:Study on the role of Arabidopsis thaliana RDR1 and other RNAi factors in the exclusion of RNA viruses from the shoot apical meristem stem cells

2023-10-09 | GSE221157 | GEO

Quantitative analysis of changes in the phosphoproteome of maize induced by the plant hormone salicylic acid

Project description:Phytohormone salicylic acid (SA) plays an important role in regulating various physiological and biochemical processes. Our previous study identified several protein kinases responsive to SA, suggesting an important role for phosphorylation events in the plant response to SA.

2018-10-24 | PXD002586 | Pride

Salicylic acid and RNA interference mediate antiviral immunity of plant stem cells.

Project description:Stem cells are essential for the development and organ regeneration of multicellular organisms, so their infection by pathogenic viruses must be prevented. Accordingly, mammalian stem cells are highly resistant to viral infection due to dedicated antiviral pathways including RNA interference (RNAi). In plants, a small group of stem cells harbored within the shoot apical meristem generate all postembryonic above-ground tissues, including the germline cells. Many viruses do not proliferate in these cells, yet the molecular bases of this exclusion remain only partially understood. Here, we show that a plant-encoded RNA-dependent RNA polymerase, after activation by the plant hormone salicylic acid, amplifies antiviral RNAi in infected tissues. This provides stem cells with RNA-based virus sequence information, which prevents virus proliferation. Furthermore, we find RNAi to be necessary for stem cell exclusion of several unrelated RNA viruses, despite their ability to efficiently suppress RNAi in the rest of the plant. This work elucidates a molecular pathway of great biological and economic relevance and lays the foundations for our future understanding of the unique systems underlying stem cell immunity.

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