New insights into the regulatory effects of galloylated catechin on male reproduction in Camellia oleifera

Clicks: 31
ID: 326279
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
Steady

Ranked #54 of 112 articles by views in Tree physiology

Most read Least read

Bar heights use a square-root scale.

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
Flavonoids, particularly galloylated catechins, are known to regulate pollen tube growth, but their mode of action in woody plants remains poorly characterized. Here, we investigated the effects of epigallocatechin gallate (EGCG) $\hbox{---}$a major galloylated catechin$\hbox{---}$ on Camellia oleifera pollen tubes using combined cytological and transcriptomic approaches. In vitro treatment with 100 $$g/mL EGCG significantly reduced pollen germination and tube elongation. Confocal and fluorescence microscopy revealed that EGCG rapidly disrupted the apical Ca2+ gradient within 10 min, accompanied by disorganized actin filaments and altered distribution of methyl-esterified pectin at the tube apex. Transcriptome profiling and antisense oligonucleotide (AS-ODN)-mediated knockdown identified a Rho GTPase-activating protein (ROPGAP6)-centered regulatory network associated with growth inhibition. Weighted gene co-expression network analysis (WGCNA) and subsequent AS-ODN knockdown experiments further revealed transcriptional coordination among Decapping protein 1 (Dcp1), small heat shock factor (sHSF), and ROPGAP6 in response to EGCG treatment. Collectively, our findings offer a multi-level framework for understanding how galloylated catechins regulate pollen tube growth in C. oleifera, providing insights into their roles in male reproduction of trees.
Reference Key
openalex_W7203999887 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Honggang Xu, Jin Feng, Xiaoying Li, Xinmiao Guo, Linke Huang, Zhengzheng Guo, Yihong Chang, Wenfang Gong
Are you one of these authors? Claim your profile
Journal Tree physiology
Year 2026
DOI
10.1093/treephys/tpag118
URL
https://doi.org/10.1093/treephys/tpag118
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.