Regulatory Mechanisms of bHLH Transcription Factors in Plant Adaptive Responses to Various Abiotic Stresses
Basic helix-loop-helix proteins (bHLHs) comprise one of the largest families of transcription factors in plants. They have been shown to be involved in responses to various abiotic stresses, such as drought, salinity, chilling, heavy metal toxicity, iron deficiency, and osmotic damages. By specifica...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-06-01
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| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2021.677611/full |
| _version_ | 1818918663596539904 |
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| author | Yuchen Qian Tongyao Zhang Yan Yu Liangpeng Gou Jingting Yang Jia Xu Erxu Pi |
| author_facet | Yuchen Qian Tongyao Zhang Yan Yu Liangpeng Gou Jingting Yang Jia Xu Erxu Pi |
| author_sort | Yuchen Qian |
| collection | DOAJ |
| description | Basic helix-loop-helix proteins (bHLHs) comprise one of the largest families of transcription factors in plants. They have been shown to be involved in responses to various abiotic stresses, such as drought, salinity, chilling, heavy metal toxicity, iron deficiency, and osmotic damages. By specifically binding to cis-elements in the promoter region of stress related genes, bHLHs can regulate their transcriptional expression, thereby regulating the plant’s adaptive responses. This review focuses on the structural characteristics of bHLHs, the regulatory mechanism of how bHLHs are involved transcriptional activation, and the mechanism of how bHLHs regulate the transcription of target genes under various stresses. Finally, as increasing research demonstrates that flavonoids are usually induced under fluctuating environments, the latest research progress and future research prospects are described on the mechanisms of how flavonoid biosynthesis is regulated by bHLHs in the regulation of the plant’s responses to abiotic stresses. |
| first_indexed | 2024-12-20T00:53:33Z |
| format | Article |
| id | doaj.art-81eb5de48d934bfc83609b2e4a2f0f19 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-20T00:53:33Z |
| publishDate | 2021-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-81eb5de48d934bfc83609b2e4a2f0f192022-12-21T19:59:10ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-06-011210.3389/fpls.2021.677611677611Regulatory Mechanisms of bHLH Transcription Factors in Plant Adaptive Responses to Various Abiotic StressesYuchen QianTongyao ZhangYan YuLiangpeng GouJingting YangJia XuErxu PiBasic helix-loop-helix proteins (bHLHs) comprise one of the largest families of transcription factors in plants. They have been shown to be involved in responses to various abiotic stresses, such as drought, salinity, chilling, heavy metal toxicity, iron deficiency, and osmotic damages. By specifically binding to cis-elements in the promoter region of stress related genes, bHLHs can regulate their transcriptional expression, thereby regulating the plant’s adaptive responses. This review focuses on the structural characteristics of bHLHs, the regulatory mechanism of how bHLHs are involved transcriptional activation, and the mechanism of how bHLHs regulate the transcription of target genes under various stresses. Finally, as increasing research demonstrates that flavonoids are usually induced under fluctuating environments, the latest research progress and future research prospects are described on the mechanisms of how flavonoid biosynthesis is regulated by bHLHs in the regulation of the plant’s responses to abiotic stresses.https://www.frontiersin.org/articles/10.3389/fpls.2021.677611/fullplantbHLH transcription factorflavonoidsabiotic stressescis-elements |
| spellingShingle | Yuchen Qian Tongyao Zhang Yan Yu Liangpeng Gou Jingting Yang Jia Xu Erxu Pi Regulatory Mechanisms of bHLH Transcription Factors in Plant Adaptive Responses to Various Abiotic Stresses Frontiers in Plant Science plant bHLH transcription factor flavonoids abiotic stresses cis-elements |
| title | Regulatory Mechanisms of bHLH Transcription Factors in Plant Adaptive Responses to Various Abiotic Stresses |
| title_full | Regulatory Mechanisms of bHLH Transcription Factors in Plant Adaptive Responses to Various Abiotic Stresses |
| title_fullStr | Regulatory Mechanisms of bHLH Transcription Factors in Plant Adaptive Responses to Various Abiotic Stresses |
| title_full_unstemmed | Regulatory Mechanisms of bHLH Transcription Factors in Plant Adaptive Responses to Various Abiotic Stresses |
| title_short | Regulatory Mechanisms of bHLH Transcription Factors in Plant Adaptive Responses to Various Abiotic Stresses |
| title_sort | regulatory mechanisms of bhlh transcription factors in plant adaptive responses to various abiotic stresses |
| topic | plant bHLH transcription factor flavonoids abiotic stresses cis-elements |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2021.677611/full |
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