Reciprocal regulation of nitrate and jasmonate signaling by JASMONATE ZIM DOMAIN PROTEIN 1 coordinates plant growth and defense
© 2025 The Author(s). New Phytologist © 2025 New Phytologist Foundation.
| Veröffentlicht in: | The New phytologist. - 1979. - (2025) vom: 28. Sept. |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2025
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| Zugriff auf das übergeordnete Werk: | The New phytologist |
| Schlagworte: | Journal Article JAZ1 NLP7 growth–defense trade‐off jasmonates nitrate |
| Zusammenfassung: | © 2025 The Author(s). New Phytologist © 2025 New Phytologist Foundation. Nitrate (NO3 -) and jasmonates (JAs) are essential signaling molecules that regulate plant growth and defense responses, respectively. However, the molecular mechanism underlying their crosstalk remains to be elucidated. Here, we uncovered the reciprocal regulation between NO3 - and JAs through the key integrator JASMONATE ZIM DOMAIN PROTEIN 1 (JAZ1). We found that NIN-LIKE PROTEIN 7, a central transcription factor in NO3 - signaling, directly activates JAZ1 expression by binding to its promoter, thereby suppressing JA-mediated defense responses under high NO3 - conditions. Conversely, JA signaling inhibited NO3 --promoted growth via CORONATINE-INSENSITIVE 1-mediated degradation of JAZ1, which releases transcriptional repressors LATERAL ORGAN BOUNDARY DOMAIN37/38 (LBD37/38) to downregulate NO3 --responsive genes. Our findings underscore the dynamic interplay between nutrient availability and hormone signaling in shaping plant development and defense, which could offer potential strategies for improving crop resilience |
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| Beschreibung: | Date Revised 29.09.2025 published: Print-Electronic Citation Status Publisher |
| ISSN: | 1469-8137 |
| DOI: | 10.1111/nph.70609 |