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ABI4: versatile activator and repressor
Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC). Umeå University, Faculty of Science and Technology, Department of Plant Physiology.ORCID iD: 0000-0002-5605-7984
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2013 (English)In: Trends in Plant Science, ISSN 1360-1385, Vol. 18, no 3, 125-132 p.Article in journal (Refereed) Published
Abstract [en]

The ABSCISIC ACID INSENSITIVE4 (ABI4) gene was discovered to be an abscisic acid (ABA) signaling responsive transcription factor active during seed germination. The evolutionary history of the ABI4 gene supports its role as an ABA signaling intermediate in land plants. Investigating the ABI4 protein-cis element interaction supports the proposal that ABI4 binding to its known CE1 cis-element competes with transcription factor binding to the overlapping G-Box element. Recent publications report on ABI4 as a regulatory factor in diverse processes. In developing seedlings, ABI4 mediates sugar signaling, lipid breakdown, and plastid-to-nucleus signaling. Moreover, ABI4 is a regulator of rosette growth, redox signaling, cell wall metabolism and the effect of nitrate on lateral root development.

Place, publisher, year, edition, pages
2013. Vol. 18, no 3, 125-132 p.
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URN: urn:nbn:se:umu:diva-68266DOI: 10.1016/j.tplants.2012.10.004ISI: 000316374900003OAI: diva2:616725
Available from: 2013-04-18 Created: 2013-04-15 Last updated: 2015-04-29Bibliographically approved

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Hanson, Johannes
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Umeå Plant Science Centre (UPSC)Department of Plant Physiology
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