Wheat ocs-Element Binding Factor 1 Enhances Thermotolerance by Modulating the Heat Stress Response Pathway
The basic leucine zipper family (bZIP) represents one of the largest families of transcription factors that play an important role in plant responses to abiotic stresses. However, their role in contributing to thermotolerance in plants is not well explored. In this article, two homoeologs of wheat o...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-05-01
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| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2022.914363/full |
| _version_ | 1818243080164212736 |
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| author | Harsha Samtani Aishwarye Sharma Paramjit Khurana |
| author_facet | Harsha Samtani Aishwarye Sharma Paramjit Khurana |
| author_sort | Harsha Samtani |
| collection | DOAJ |
| description | The basic leucine zipper family (bZIP) represents one of the largest families of transcription factors that play an important role in plant responses to abiotic stresses. However, their role in contributing to thermotolerance in plants is not well explored. In this article, two homoeologs of wheat ocs-element binding factor 1 (TaOBF1-5B and TaOBF1-5D) were found to be heat-responsive TabZIP members. Their expression analysis in Indian wheat cultivars revealed their differential expression pattern and TaOBF1-5B was found to be more receptive to heat stress. Consistent with this, the heterologous overexpression of TaOBF1-5B in Arabidopsis thaliana and Oryza sativa promoted the expression of stress-responsive genes, which contributed to thermotolerance in transgenic plants. TaOBF1-5B was seen to interact with TaHSP90 in the nucleus and TaSTI in the nucleolus and the ER. Thus, the results suggest that TaOBF1-5B might play an important regulatory role in the heat stress response and is a major factor governing thermotolerance in plants. |
| first_indexed | 2024-12-12T13:55:26Z |
| format | Article |
| id | doaj.art-74abea0bbdc74b0c94cc07141476850e |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-12T13:55:26Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-74abea0bbdc74b0c94cc07141476850e2022-12-22T00:22:28ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-05-011310.3389/fpls.2022.914363914363Wheat ocs-Element Binding Factor 1 Enhances Thermotolerance by Modulating the Heat Stress Response PathwayHarsha SamtaniAishwarye SharmaParamjit KhuranaThe basic leucine zipper family (bZIP) represents one of the largest families of transcription factors that play an important role in plant responses to abiotic stresses. However, their role in contributing to thermotolerance in plants is not well explored. In this article, two homoeologs of wheat ocs-element binding factor 1 (TaOBF1-5B and TaOBF1-5D) were found to be heat-responsive TabZIP members. Their expression analysis in Indian wheat cultivars revealed their differential expression pattern and TaOBF1-5B was found to be more receptive to heat stress. Consistent with this, the heterologous overexpression of TaOBF1-5B in Arabidopsis thaliana and Oryza sativa promoted the expression of stress-responsive genes, which contributed to thermotolerance in transgenic plants. TaOBF1-5B was seen to interact with TaHSP90 in the nucleus and TaSTI in the nucleolus and the ER. Thus, the results suggest that TaOBF1-5B might play an important regulatory role in the heat stress response and is a major factor governing thermotolerance in plants.https://www.frontiersin.org/articles/10.3389/fpls.2022.914363/fullbZIPendoplasmic reticulum (ER)heat stressnucleusocs-element binding factor 1 (OBF1)thermotolerance |
| spellingShingle | Harsha Samtani Aishwarye Sharma Paramjit Khurana Wheat ocs-Element Binding Factor 1 Enhances Thermotolerance by Modulating the Heat Stress Response Pathway Frontiers in Plant Science bZIP endoplasmic reticulum (ER) heat stress nucleus ocs-element binding factor 1 (OBF1) thermotolerance |
| title | Wheat ocs-Element Binding Factor 1 Enhances Thermotolerance by Modulating the Heat Stress Response Pathway |
| title_full | Wheat ocs-Element Binding Factor 1 Enhances Thermotolerance by Modulating the Heat Stress Response Pathway |
| title_fullStr | Wheat ocs-Element Binding Factor 1 Enhances Thermotolerance by Modulating the Heat Stress Response Pathway |
| title_full_unstemmed | Wheat ocs-Element Binding Factor 1 Enhances Thermotolerance by Modulating the Heat Stress Response Pathway |
| title_short | Wheat ocs-Element Binding Factor 1 Enhances Thermotolerance by Modulating the Heat Stress Response Pathway |
| title_sort | wheat ocs element binding factor 1 enhances thermotolerance by modulating the heat stress response pathway |
| topic | bZIP endoplasmic reticulum (ER) heat stress nucleus ocs-element binding factor 1 (OBF1) thermotolerance |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2022.914363/full |
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