A plant RNA-binding protein senses 2',3'-cNMP produced by insect effectors.

Nature · 11 Nov 2026 · Journal Article

Guo, Huang + more

The abstract is read at the publisher; the summary is JClub's.

NIB1, a glycine-rich RNA-binding protein in rice, senses 2',3'-cAMP, 2',3'-cGMP, and ApG>p produced by a green stink bug salivary T2 ribonuclease during feeding.

Why it matters: Plants must detect RNA-derived 2',3'-cyclophosphate nucleotides used as immune signals in other organisms, but the plant sensor and pathway were unknown.
What they did: The study shows NIB1 binds these 2',3'-cNMPs and ApG>p, promoting nuclear condensates that recruit EDS1 and trigger defence; exogenous 2',3'-cAMP, 2',3'-cGMP, or ApG>p also elicits NIB1- and EDS1-mediated responses.
The result: This links insect nuclease products to an EDS1-dependent defence program in rice and suggests a conserved plant pathway connecting glycine-rich RNA-binding proteins to TIR-associated nuclease signalling.

AI summary of the abstract · may contain errors · not medical advice · read the paper.

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A plant RNA-binding protein senses 2',3'-cNMP produced by insect effectors.

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Floral traits predict nectar rewards across diverse plant communities

Transcriptomic biomarkers reveal jasmonic and salicylic acid states under field herbivory in Arabidopsis thaliana.

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