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DC Field | Value | Language |
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dc.contributor.author | Agrawal, Rekha | - |
dc.contributor.author | Sharma, Mohan | - |
dc.contributor.author | Dwivedi, Nidhi | - |
dc.contributor.author | Maji, Sourobh | - |
dc.contributor.author | Thakur, Pallabi | - |
dc.contributor.author | Junaid, Alim | - |
dc.contributor.author | Fajkus, Jiří | - |
dc.contributor.author | Laxmi, Ashverya | - |
dc.contributor.author | Thakur, Jitendra K. | - |
dc.date.accessioned | 2022-05-17T09:43:36Z | - |
dc.date.available | 2022-05-17T09:43:36Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | Plant Physiology, 189(4): 2259-2280 | en_US |
dc.identifier.issn | 1532-2548 | - |
dc.identifier.issn | 0032-0889 | - |
dc.identifier.other | https://doi.org/10.1093/plphys/kiac220 | - |
dc.identifier.uri | https://academic.oup.com/plphys/advance-article/doi/10.1093/plphys/kiac220/6585885?login=true | - |
dc.identifier.uri | http://223.31.159.10:8080/jspui/handle/123456789/1333 | - |
dc.description | Accepted date: 20 April 2022 | en_US |
dc.description.abstract | Plant adjustment to environmental changes involves complex crosstalk between extrinsic and intrinsic cues. In the past two decades, extensive research has elucidated the key roles of PHYTOCHROME INTERACTING FACTOR4 (PIF4) and the phytohormone auxin in thermomorphogenesis. In this study, we identified a previously unexplored role of jasmonate (JA) signaling components, the Mediator complex, and their integration with auxin signaling during thermomorphogenesis in Arabidopsis (Arabidopsis thaliana). Warm temperature induces expression of JA signaling genes including MYC2, but, surprisingly, this transcriptional activation is not JA dependent. Warm temperature also promotes accumulation of the JA-signaling receptor CORONATINE INSENSITIVE1 (COI1) and degradation of the JA-signaling repressor JASMONATE-ZIM-DOMAIN PROTEIN9 (JAZ9), which probably leads to de-repression of MYC2, enabling it to contribute to the expression of MEDIATOR SUBUNIT17 (MED17). In response to warm temperature, MED17 occupies the promoters of thermosensory genes including PIF4, YUCCA8 (YUC8), INDOLE-3-ACETIC ACID INDUCIBLE19 (IAA19), and IAA29. Moreover, MED17 facilitates enrichment of H3K4me3 on the promoters of PIF4, YUC8, IAA19, and IAA29 genes. Interestingly, both occupancy of MED17 and enrichment of H3K4me3 on these thermomorphogenesis-related promoters are dependent on PIF4 (or PIFs). Altered accumulation of COI1 under warm temperature in the med17 mutant suggests the possibility of a feedback mechanism. Overall, this study reveals the role of the Mediator complex as an integrator of JA and auxin signaling pathways during thermomorphogenesis. | en_US |
dc.description.sponsorship | The authors would like to thank Dr. Nam Hai Chua for providing seeds of 35S::MYC2-GFP and Dr. Laurent Laplaze for providing seeds of p35S::JAZ9-N7-VENUS. We thank DBTeLibrary consortium (DeLCON) for all the literatures. Support from all the facilities of NIPGR and ICGEB are acknowledged. Authors are thankful to Dr. Lucinda Elizabeth Doyle, Indian Institute of Technology, New Delhi, for editing the manuscript. This work was supported by the grant BT/PR13009/BPA/ 118/71/2015 from the Department of Biotechnology, Government of India. R.A., N.D., P.T., and M.S. acknowledge fellowships from Council of Scientific and Industrial Research, Government of India, Department of Biotechnology, Government of India and Short Term Fellowship from National Institute of Plant Genome Research respectively. S.M. and A.J. acknowledge National Post-Doctoral Fellowship from Science and Engineering Research Board, Government of India. J.F. is supported by INTER-COST project LTC 20003 and by the European Regional Development Fund Project “SINGING PLANT” (CZ.02.01/0.0/0.0/16_026/0008446). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | Oxford University Press | en_US |
dc.subject | Arabidopsis | en_US |
dc.subject | Mediator complex | en_US |
dc.subject | MED17 | en_US |
dc.subject | thermomorphogenesis | en_US |
dc.subject | epigenetic | en_US |
dc.subject | transcription | en_US |
dc.subject | auxin | en_US |
dc.subject | jasmonic acid | en_US |
dc.title | MEDIATOR SUBUNIT17 integrates jasmonate and auxin signaling pathways to regulate thermomorphogenesis | en_US |
dc.type | Article | en_US |
Appears in Collections: | Institutional Publications |
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Thakur JK_2022_1.pdf Restricted Access | 2.43 MB | Adobe PDF | View/Open Request a copy |
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