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DC Field | Value | Language |
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dc.contributor.author | Sharma, Manvi | - |
dc.contributor.author | Sharma, Mohan | - |
dc.contributor.author | Jamsheer, K. Muhammed | - |
dc.contributor.author | Laxmi, Ashverya | - |
dc.date.accessioned | 2022-02-15T09:30:59Z | - |
dc.date.available | 2022-02-15T09:30:59Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | Plant, Cell & Environment, 45(5): 1554-1572 | en_US |
dc.identifier.issn | 1365-3040 | - |
dc.identifier.other | https://doi.org/10.1111/pce.14290 | - |
dc.identifier.uri | https://onlinelibrary.wiley.com/doi/10.1111/pce.14290 | - |
dc.identifier.uri | http://223.31.159.10:8080/jspui/handle/123456789/1296 | - |
dc.description | Accepted date: 11 February 2022 | en_US |
dc.description.abstract | The role of jasmonates (JAs) in primary root growth and development and in plant response to external stimuli is already known. However, its role in lateral root (LR) development remains to be explored. Our work identified methyl jasmonate (MeJA) as a key phytohormone in determining the branching angle of Arabidopsis LRs. MeJA inclines the LRs to a more vertical orientation, which was dependent on the canonical JAR1-COI1-MYC2,3,4 signalling. Our work also highlights the dual roles of light in governing LR angle. Light signalling enhances JA biosynthesis, leading to erect root architecture; whereas, glucose (Glc) induces wider branching angles. Combining physiological and molecular assays, we revealed that Glc antagonizes the MeJA response via TARGET OF RAPAMYCIN (TOR) signalling. Moreover, physiological assays using auxin mutants, MYC2-mediated transcriptional activation of LAZY2, LAZY4 and auxin biosynthetic gene CYP79B2,and asymmetric distribution of DR5::GFP and PIN2::GFP pinpointed the role of an intact auxin mechanism required by MeJA for vertical growth of LRs. We also demonstrated that light perception and signalling are indispensable for inducing vertical angles by MeJA. Thus, our investigation highlights antagonism between light and Glc signalling and how they interact with JA-auxin signals to optimize the branching angle of LRs. | en_US |
dc.description.sponsorship | The authors would like to thank Dr. AditiGupta for her advice and discussions and Ms Harshita Bharti Saksena for reading the manuscript.The authors acknowledge NIPGR Confocal Facility for their assistance, Prof. Philippe Reymond for providing seeds of myc2myc3myc4, Dr. Nam-HaiChua for providing seeds of35S-MYC2-GFP and Dr. Laurent Laplaze for providing seeds of p35S::Jas9-N7-VENUS. The authors are thankful to DBT-eLibrary Consortium (DeLCON) for providing access to e-resources.This work was financially supported by the Core Grant from the National Institute of Plant Genome Research to A.L., University Grant Commission, Government of India and Department of Biotechnology, Government of India. M.S. acknowledges University Grant Commission, Government of India for research fellowship, M.S. acknowledges Department of Biotechnology, Government of Indiaand MJK acknowledges Department of Science and Technology (INSPIRE Faculty Programme Grant IFA18-LSPA110). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | John Wiley & Sons | en_US |
dc.subject | Jasmonate | en_US |
dc.subject | TOR kinase | en_US |
dc.subject | crosstalk | en_US |
dc.subject | lateral root development | en_US |
dc.subject | phytohormones | en_US |
dc.title | Jasmonic acid coordinates with light, glucose and auxin signalling in regulating branching angle of Arabidopsis lateral roots | en_US |
dc.type | Article | en_US |
Appears in Collections: | Institutional Publications |
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Laxmi A_2022_1.pdf Restricted Access | 17.18 MB | Adobe PDF | View/Open Request a copy |
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