The Populus MYB transcription factor PSAR1 negatively regulates salt stress and is a repressor of ABA signaling
Plant transcription factors and their associations with ABA (abscisic acid) are critical for development and adaptation to environments. Here, we report that the Populus MYB transcription factor Salt stress – and ABA signaling-Repressor 1 (PSAR1) combines with ABA signaling to negatively regulate sa...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2025-12-01
|
| Series: | Journal of Plant Interactions |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/17429145.2025.2453716 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832590045529243648 |
|---|---|
| author | Qing Fang Caiyun Zhang Jingjie Liu Zhi Zeng Yanke Lu |
| author_facet | Qing Fang Caiyun Zhang Jingjie Liu Zhi Zeng Yanke Lu |
| author_sort | Qing Fang |
| collection | DOAJ |
| description | Plant transcription factors and their associations with ABA (abscisic acid) are critical for development and adaptation to environments. Here, we report that the Populus MYB transcription factor Salt stress – and ABA signaling-Repressor 1 (PSAR1) combines with ABA signaling to negatively regulate salt stress responses. A markedly diminished tolerance to salt stress was observed in the engineered Arabidopsis overexpressing PSAR1 (OeLAs) compared with Wt (wild-type) plants. OeLAs seed germination to ABA (1.0 μM) was less sensitive. Whereas by higher ABA (5.0 μM) treatment a delayed blooming was viewed in the OeLAs seedlings. And the endogenous ABA level steadily decreased. Furthermore, 486 DEGs (differentially expressed genes) were identified in OeLA1 by RNA-seq, including the genes encoding the Highly ABA-Induced protein phosphatases HAI1 and HAI2. A similar expression pattern of the genes was also confirmed by qRT-PCR. Overall, these results illuminate the Populus PSAR1 mediates environmental conditions, gene expression, and physiological ABA status. |
| format | Article |
| id | doaj-art-57495a18b0464b2db059396410436c18 |
| institution | Kabale University |
| issn | 1742-9145 1742-9153 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Plant Interactions |
| spelling | doaj-art-57495a18b0464b2db059396410436c182025-01-24T04:28:20ZengTaylor & Francis GroupJournal of Plant Interactions1742-91451742-91532025-12-0120110.1080/17429145.2025.2453716The Populus MYB transcription factor PSAR1 negatively regulates salt stress and is a repressor of ABA signalingQing Fang0Caiyun Zhang1Jingjie Liu2Zhi Zeng3Yanke Lu4Hubei Key Laboratory of Biological Resources Protection and Utilization, Hubei Minzu University, Enshi, People’s Republic of ChinaHubei Key Laboratory of Biological Resources Protection and Utilization, Hubei Minzu University, Enshi, People’s Republic of ChinaCollege of Biological and Food Engineering, Hubei Minzu University, Enshi, People’s Republic of ChinaCollege of Biological and Food Engineering, Hubei Minzu University, Enshi, People’s Republic of ChinaHubei Key Laboratory of Biological Resources Protection and Utilization, Hubei Minzu University, Enshi, People’s Republic of ChinaPlant transcription factors and their associations with ABA (abscisic acid) are critical for development and adaptation to environments. Here, we report that the Populus MYB transcription factor Salt stress – and ABA signaling-Repressor 1 (PSAR1) combines with ABA signaling to negatively regulate salt stress responses. A markedly diminished tolerance to salt stress was observed in the engineered Arabidopsis overexpressing PSAR1 (OeLAs) compared with Wt (wild-type) plants. OeLAs seed germination to ABA (1.0 μM) was less sensitive. Whereas by higher ABA (5.0 μM) treatment a delayed blooming was viewed in the OeLAs seedlings. And the endogenous ABA level steadily decreased. Furthermore, 486 DEGs (differentially expressed genes) were identified in OeLA1 by RNA-seq, including the genes encoding the Highly ABA-Induced protein phosphatases HAI1 and HAI2. A similar expression pattern of the genes was also confirmed by qRT-PCR. Overall, these results illuminate the Populus PSAR1 mediates environmental conditions, gene expression, and physiological ABA status.https://www.tandfonline.com/doi/10.1080/17429145.2025.2453716Gene expressionRNA-seqMYB transcription factorABA |
| spellingShingle | Qing Fang Caiyun Zhang Jingjie Liu Zhi Zeng Yanke Lu The Populus MYB transcription factor PSAR1 negatively regulates salt stress and is a repressor of ABA signaling Journal of Plant Interactions Gene expression RNA-seq MYB transcription factor ABA |
| title | The Populus MYB transcription factor PSAR1 negatively regulates salt stress and is a repressor of ABA signaling |
| title_full | The Populus MYB transcription factor PSAR1 negatively regulates salt stress and is a repressor of ABA signaling |
| title_fullStr | The Populus MYB transcription factor PSAR1 negatively regulates salt stress and is a repressor of ABA signaling |
| title_full_unstemmed | The Populus MYB transcription factor PSAR1 negatively regulates salt stress and is a repressor of ABA signaling |
| title_short | The Populus MYB transcription factor PSAR1 negatively regulates salt stress and is a repressor of ABA signaling |
| title_sort | populus myb transcription factor psar1 negatively regulates salt stress and is a repressor of aba signaling |
| topic | Gene expression RNA-seq MYB transcription factor ABA |
| url | https://www.tandfonline.com/doi/10.1080/17429145.2025.2453716 |
| work_keys_str_mv | AT qingfang thepopulusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling AT caiyunzhang thepopulusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling AT jingjieliu thepopulusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling AT zhizeng thepopulusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling AT yankelu thepopulusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling AT qingfang populusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling AT caiyunzhang populusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling AT jingjieliu populusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling AT zhizeng populusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling AT yankelu populusmybtranscriptionfactorpsar1negativelyregulatessaltstressandisarepressorofabasignaling |