The transcriptional regulatory network in the drought response and its crosstalk in abiotic stress responses including drought, cold and heat
Drought negatively impacts plant growth and the productivity of crops around the world. Understanding the molecular mechanisms in the drought response is important for improvement of drought tolerance using molecular techniques. In plants, abscisic acid (ABA) is accumulated under osmotic stress cond...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2014-05-01
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| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00170/full |
| _version_ | 1811306849011499008 |
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| author | Kazuo eNakashima Kazuko eYamaguchi-Shinozaki Kazuo eShinozaki |
| author_facet | Kazuo eNakashima Kazuko eYamaguchi-Shinozaki Kazuo eShinozaki |
| author_sort | Kazuo eNakashima |
| collection | DOAJ |
| description | Drought negatively impacts plant growth and the productivity of crops around the world. Understanding the molecular mechanisms in the drought response is important for improvement of drought tolerance using molecular techniques. In plants, abscisic acid (ABA) is accumulated under osmotic stress conditions caused by drought, and has a key role in stress responses and tolerance. Comprehensive molecular analyses have shown that ABA regulates the expression of many genes under osmotic stress conditions, and the ABA-responsive element (ABRE) is the major cis-element for ABA-responsive gene expression. Transcription factors (TFs) are master regulators of gene expression. ABRE-binding protein (AREB) and ABRE-binding factor (ABF) TFs control gene expression in an ABA-dependent manner. SNF1-related protein kinases 2, group A 2C-type protein phosphatases, and ABA receptors were shown to control the ABA signaling pathway. ABA-independent signaling pathways such as dehydration-responsive element-binding protein (DREB) TFs and NAC TFs are also involved in stress responses including drought, heat and cold. Recent studies have suggested that there are interactions between the major ABA signaling pathway and other signaling factors in stress responses. The important roles of these transcription factors in crosstalk among abiotic stress responses will be discussed. Control of ABA or stress signaling factor expression can improve tolerance to environmental stresses. Recent studies using crops have shown that stress-specific overexpression of TFs improves drought tolerance and grain yield compared with controls in the field. |
| first_indexed | 2024-04-13T08:52:53Z |
| format | Article |
| id | doaj.art-13170dae767947a98e1cf700fdb20240 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-13T08:52:53Z |
| publishDate | 2014-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-13170dae767947a98e1cf700fdb202402022-12-22T02:53:25ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2014-05-01510.3389/fpls.2014.0017085756The transcriptional regulatory network in the drought response and its crosstalk in abiotic stress responses including drought, cold and heatKazuo eNakashima0Kazuko eYamaguchi-Shinozaki1Kazuo eShinozaki2Japan International Research Center for Agricultural Sciences (JIRCAS)The University of TokyoRIKEN Center for Sustainable Resource ScienceDrought negatively impacts plant growth and the productivity of crops around the world. Understanding the molecular mechanisms in the drought response is important for improvement of drought tolerance using molecular techniques. In plants, abscisic acid (ABA) is accumulated under osmotic stress conditions caused by drought, and has a key role in stress responses and tolerance. Comprehensive molecular analyses have shown that ABA regulates the expression of many genes under osmotic stress conditions, and the ABA-responsive element (ABRE) is the major cis-element for ABA-responsive gene expression. Transcription factors (TFs) are master regulators of gene expression. ABRE-binding protein (AREB) and ABRE-binding factor (ABF) TFs control gene expression in an ABA-dependent manner. SNF1-related protein kinases 2, group A 2C-type protein phosphatases, and ABA receptors were shown to control the ABA signaling pathway. ABA-independent signaling pathways such as dehydration-responsive element-binding protein (DREB) TFs and NAC TFs are also involved in stress responses including drought, heat and cold. Recent studies have suggested that there are interactions between the major ABA signaling pathway and other signaling factors in stress responses. The important roles of these transcription factors in crosstalk among abiotic stress responses will be discussed. Control of ABA or stress signaling factor expression can improve tolerance to environmental stresses. Recent studies using crops have shown that stress-specific overexpression of TFs improves drought tolerance and grain yield compared with controls in the field.http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00170/fullSignal Transductiontranscription factordroughtabiotic stressABA |
| spellingShingle | Kazuo eNakashima Kazuko eYamaguchi-Shinozaki Kazuo eShinozaki The transcriptional regulatory network in the drought response and its crosstalk in abiotic stress responses including drought, cold and heat Frontiers in Plant Science Signal Transduction transcription factor drought abiotic stress ABA |
| title | The transcriptional regulatory network in the drought response and its crosstalk in abiotic stress responses including drought, cold and heat |
| title_full | The transcriptional regulatory network in the drought response and its crosstalk in abiotic stress responses including drought, cold and heat |
| title_fullStr | The transcriptional regulatory network in the drought response and its crosstalk in abiotic stress responses including drought, cold and heat |
| title_full_unstemmed | The transcriptional regulatory network in the drought response and its crosstalk in abiotic stress responses including drought, cold and heat |
| title_short | The transcriptional regulatory network in the drought response and its crosstalk in abiotic stress responses including drought, cold and heat |
| title_sort | transcriptional regulatory network in the drought response and its crosstalk in abiotic stress responses including drought cold and heat |
| topic | Signal Transduction transcription factor drought abiotic stress ABA |
| url | http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00170/full |
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