Drought-Triggered JA Signaling Promotes Pathogen Susceptibility by Attenuating Lignin Defenses via UGT72BV9 in Tea Plants

Clicks: 1
ID: 322728
2026
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal

Ranked #500 of 513 articles by views in Plant physiology and biochemistry : PPB

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 513 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Tea plants frequently encounter combined abiotic and biotic stresses, which severely threaten sustainable tea production. However, how plants integrate responses to multiple stresses remains unclear. Here, we demonstrate that short-term drought preconditioning enhances tea plant susceptibility to infection by the fungal pathogen Pseudopestalotiopsis camelliae-sinensis (Pcs). Transcriptome analysis identified a UDP-dependent glycosyltransferase, CsUGT72BV9, that is co-induced under drought, Pcs infection, and combined stress. Biochemical assays showed that CsUGT72BV9 preferentially glycosylates 4-hydroxycoumarin, a key metabolite in the phenylpropanoid pathway. Silencing CsUGT72BV9 significantly promoted lignin accumulation and enhanced disease resistance, whereas its overexpression reduced resistance, indicating a negative role in defense. Furthermore, CsUGT72BV9 influences jasmonic acid (JA) accumulation, and we identified the transcription factor CsMYC2c, which directly binds to and activates CsUGT72BV9 expression, thereby forming a regulatory module that attenuates disease resistance. Collectively, our findings support a working model in which the CsMYC2c-CsUGT72BV9 module links drought-induced JA signaling to coumarin glycosylation, lignin remodeling and increased susceptibility to Pcs. This study provides new insights into the molecular basis of plant adaptation to complex stress conditions and highlights potential targets for breeding stress-resistant tea varieties.
Reference Key
openalex_W7171645407 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xiaoyan Tang, Chenru Wei, Xumei Zhao, Hanwen Zhang, Shuhan Jiang, Mengru Liu, Keke Yu, Jieyang Jin, Danyang Guo, Mengting Zhang, Tingting Jing, Hao Jiang, T. Li, Chuankui Song
Journal Plant physiology and biochemistry : PPB
Year 2026
DOI
10.1093/plphys/kiag559
URL
https://doi.org/10.1093/plphys/kiag559
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.