ArticlePlant communications2026
The EAR motif-containing adaptor protein ECAP enhances ABI5-mediated ABA signaling to inhibit seed germination in Arabidopsis.
Article in Plant communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Beyond light signaling: the broad regulatory spectrum of AFPs in plant growth and development.Frontiers in plant science · 2026Review
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5 authors.
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Abstract
The phytohormone abscisic acid (ABA) regulates diverse biological processes, including seed germination, in which the transcription factor abscisic acid insensitive 5 (ABI5) plays an essential role. Here, we show that the EAR motif-containing adaptor protein (ECAP) functions as a positive regulator of ABI5 to inhibit seed germination in Arabidopsis. Like ABI5, ECAP is required for the inhibition of seed germination by ABA. Transcriptome analysis reveals that ABI5 and ECAP regulate the expression of a common set of ABA-responsive genes. Biochemically, ECAP enhances the expression of ABI5, interacts with ABI5 to promote its transcriptional activity, and binds to the promoters of ABA-responsive genes in an ABI5-dependent manner. Genetically, loss of ABI5 compromises the enhanced ABA sensitivity of the ECAP overexpression line, and overexpression of ABI5 partially rescues the reduced ABA sensitivity of the ecap mutant. Together, our results suggest that ECAP and ABI5 function coordinately to fine-tune the inhibition of seed germination by ABA.
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