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Reference Detail
| Reference | ||
|---|---|---|
| Author | Faria de Souza AF., Calderín García A., Nivaldo de Oliveira Sátiro J., Ribeiro de Lima B., Silvestre Fernandes M., Louro Berbara RL., Azevedo Santos L. | |
| Title | Humic Acid Regulates Root Growth through ROS-Dependent Pathway and Hormone Signaling in Rice. | |
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Abstract: Humic acid (HA) enhances plant development, but the integration between reactive oxygen species (ROS) and hormone signaling in HA-induced root growth remains unclear. This study investigated the mechanisms of HA extracted from vermicompost on rice root development using ROS scavengers, hormone pathway inhibitors, and gene expression analyses. HA application increased root dry weight by 27% and lateral root length by 20%. ROS staining revealed higher O2•- accumulation in root tips and H2O2 in the elongation zone. Treatments with SB, TIRON, DMTU, DPI, PCIB, and FLD suppressed HA-induced growth, indicating redox and hormonal modulation. HA also upregulated genes related to ROS signaling (<i>OsGPX3, CuZnSOD1, OsPRX112, BAS1</i>) and hormone signaling (<i>OsTOR, OsIAA11</i>). These findings support the idea that HA triggers a controlled oxidative signal that interacts with hormone pathways to regulate gene expression and root development. This ROS-hormone crosstalk reveals a key mechanism underlying HA bioactivity and reinforces its potential as a biostimulant for sustainable crop production. |
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| Journal | J. Agric. Food Chem. | |
| Country | Brazil | |
| Volume | 73(32) | |
| Pages | 20081-20093 | |
| Year | 2025 | |
| PubMed ID | 40743489 | |
| PubMed Central ID | 12355950 | |
| DOI | 10.1021/acs.jafc.5c06288 | |
| URL | - | |
| Relation | ||
| Gene | GPX3 IAA11 POXGX9 SODCC1 TOR _ | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
