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This content will become publicly available on September 1, 2026

Title: Coordinated regulation of RNA metabolism and silencing by ABA signaling in plant abiotic stress responses
Abscisic acid (ABA) is an essential plant hormone that regulates multiple aspects of plant development and numerous abiotic stress responses (Cutler et al., 2010; Waadt et al., 2022). In fact, at the heart of plants’ responses to stresses such as salinity, drought, and hypertonic conditions, among others, is this phytohormone (Cutler et al., 2010; Waadt et al., 2022). Interestingly, stress-triggered and developmental responses to this hormone have been found to involve basic RNA metabolism components, including the two subunits of the nuclear cap-binding complex, ABA HYPERSENSITIVE1 (ABH1/CBP80) and CBP20 (Hugouvieux et al., 2001). Additionally, multiple lines of evidence have linked small RNA (smRNA)-mediated RNA silencing to ABA responses (Gregory et al., 2008; Laubinger et al., 2008). A new study by Yan et al. (2025) has provided new insights regarding how RNA degradation and silencing factors modulate smRNA biogenesis from NITRATE REDUCTASE1/2 transcripts to affect ABA-regulated abiotic stress responses.  more » « less
Award ID(s):
2023310
PAR ID:
10643253
Author(s) / Creator(s):
Publisher / Repository:
Cell Press
Date Published:
Journal Name:
Molecular Plant
ISSN:
1674-2052
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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