Please use this identifier to cite or link to this item: https://doi.org/10.1105/tpc.109.073072
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dc.titleMOTHER OF FT and TFL1 regulates seed germination through a negative feedback loop modulating ABA signaling in Arabidopsis
dc.contributor.authorXi, W.
dc.contributor.authorLiu, C.
dc.contributor.authorHou, X.
dc.contributor.authorYu, H.
dc.date.accessioned2014-10-27T08:34:14Z
dc.date.available2014-10-27T08:34:14Z
dc.date.issued2010
dc.identifier.citationXi, W., Liu, C., Hou, X., Yu, H. (2010). MOTHER OF FT and TFL1 regulates seed germination through a negative feedback loop modulating ABA signaling in Arabidopsis. Plant Cell 22 (6) : 1733-1748. ScholarBank@NUS Repository. https://doi.org/10.1105/tpc.109.073072
dc.identifier.issn10404651
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/101166
dc.description.abstractAbscisic acid (ABA) and gibberellin (GA) are two antagonistic phytohormones that regulate seed germination in response to biotic and abiotic environmental stresses. We demonstrate here that MOTHER OF FT AND TFL1 (MFT), which encodes a phosphatidylethanolamine-binding protein, regulates seed germination via the ABA and GA signaling pathways in Arabidopsis thaliana. MFT is specifically induced in the radical-hypocotyl transition zone of the embryo in response to ABA, and mft loss-of-function mutants show hypersensitivity to ABA in seed germination. In germinating seeds, MFT expression is directly regulated by ABA-INSENSITIVE3 (ABI3) and ABI5, two key transcription factors in ABA signaling pathway. MFT is also upregulated by DELLA proteins in the GA signaling pathway. MFT in turn provides negative feedback regulation of ABA signaling by directly repressing ABI5. We conclude that during seed germination, MFT promotes embryo growth by constituting a negative feedback loop in the ABA signaling pathway. © 2010 American Society of Plant Biologists.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1105/tpc.109.073072
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentBIOLOGICAL SCIENCES
dc.description.doi10.1105/tpc.109.073072
dc.description.sourcetitlePlant Cell
dc.description.volume22
dc.description.issue6
dc.description.page1733-1748
dc.description.codenPLCEE
dc.identifier.isiut000280505300008
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