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RNA-seq analysis of transcriptome reprofiling triggered by different pattern-recognition receptor types

ABSTRACT: RNA-seq analysis of transcriptome reprofiling triggered by different pattern-recognition receptor types

PROVIDER: PRJNA549850 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9331160.fastq.gz	Fastqsanger.gz
	SRR9331170.fastq.gz	Fastqsanger.gz
	SRR9331180.fastq.gz	Fastqsanger.gz
	SRR9331190.fastq.gz	Fastqsanger.gz
	SRR9331200.fastq.gz	Fastqsanger.gz

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RNA-seq analysis of transcriptome reprofiling triggered by different pattern-recognition receptor types

Project description:Plant cell surface receptors sense microbial pathogens by recognizing microbial structures called pathogen or microbe-associated molecular patterns (PAMPs/MAMPs). There are two major types of plant pattern recognition receptors: 1. Leucine-rich repeat receptor proteins (LRR-RP) and LRR receptor kinases (LRR-RK) and 2. Plant receptor proteins and receptor kinases carrying ectopic lysin motifs (LysM-RP and LysM-RK). In this study, Arabidopsis thaliana responses to three different MAMPs, flg22, nlp20, chitin (C6), via their corresponding receptor types, FLS2 (LRR-RK), RLP23 (LRR-RP), CERK1 (LysM-RK) were compared. Our RNA-seq results indicate that a core set of defense-related genes can be activated through perception of different MAMPs. However, there are also notable differences in the transcriptional changes in response to the various elicitors; flg22 causes broader transcriptome changes than nlp20 and C6, and C6 does not cause late transcriptome changes.

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tRNA-seq of Arabidopsis leaves during pattern-triggered immunity

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Project description:Plants deploy cell surface and intracellular leucine rich-repeat domain (LRR) immune receptors to detect pathogens. LRR receptor kinases (LRR-RKs) and LRR receptor proteins (LRR-RPs) recognise microbe-derived molecules to elicit pattern-triggered immunity (PTI), whereas nucleotide-binding LRR (NLR) proteins detect microbial effectors inside cells to confer effector-triggered immunity (ETI). Although PTI and ETI are initiated in different host cell compartments, they rely on the transcriptional activation of similar sets of genes, suggesting pathway convergence upstream of nuclear events. We report that PTI triggered by Arabidopsis LRR-RP (RLP23) requires signalling-competent dimers of the lipase-like proteins EDS1 and PAD4, and ADR1-family helper NLRs, which are all components of ETI. The cell surface LRR-RK SOBIR1 links RLP23 with EDS1, PAD4 and ADR1 proteins, suggesting formation of constitutive supramolecular complexes containing PTI receptors and transducers at the inner side of the plasma membrane.

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