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Reference Detail
| Reference | ||
|---|---|---|
| Author | Qu X., Zou J., Wang J., Yang K., Wang X., Le J. | |
| Title | A Rice R2R3-Type MYB Transcription Factor OsFLP Positively Regulates Drought Stress Response via OsNAC. | |
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Abstract: Abiotic stresses adversely affect plant growth and the yield of crops worldwide. R2R3-MYB transcriptional factors have been found to be vital for plants to confer stress response. In <i>Arabidopsis</i>, FOUR LIPS (FLP, MYB124) and its paralogous MYB88 function redundantly regulated the symmetric division of guard mother cells (GMCs) and abiotic stress response. Here, OsFLP was identified as an R2R3-MYB transcriptional activator and localized in the nucleus. <i>OsFLP</i> was transiently induced by drought, salt stress and abscisic acid (ABA). Overexpression of <i>OsFLP</i> showed enhanced tolerance to drought and salt stresses. The stomatal density in <i>OsFLP-OE</i> plants was not changed, whereas the stomatal closure was sensitive to ABA treatment compared to wild-type plants. In contrast, <i>OsFLP</i>-RNAi plants had abnormal stomata and were sensitive to drought. Moreover, the transcripts of stomatal closure-related genes <i>DST</i> and <i>peroxidase 24 precursor</i>, which are identified as downstream of OsNAC1, were inhibited in <i>OsFLP</i>-RNAi plants. The yeast-one-hybrid assay indicated that OsFLP can specifically bind and positively regulate <i>OsNAC1</i> and <i>OsNAC6</i>. Meanwhile, stress response genes, such as <i>OsLEA3</i> and <i>OsDREB2A</i>, were up-regulated in <i>OsFLP</i>-OE plants. These findings suggested that OsFLP positively participates in drought stress, mainly through regulating regulators' transcripts of <i>OsNAC1</i> and <i>OsNAC6</i>. |
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| Journal | Int J Mol Sci | |
| Country | China | |
| Volume | 23(11) | |
| Pages | ||
| Year | 2022 | |
| PubMed ID | 35682553 | |
| PubMed Central ID | 9180394 | |
| DOI | 10.3390/ijms23115873 | |
| URL | - | |
| Relation | ||
| Gene | DREB2A DST FLP LEA3-1 NAC5 NAC6 ONAC2 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
|
Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
