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Regulating plant physiology with organic electronics.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 901 83 Umeå, Sweden..
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering. Linköping University, Department of Physics, Chemistry and Biology.
Linköping University, Department of Physics, Chemistry and Biology, Chemistry. Linköping University, Faculty of Science & Engineering.
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2017 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 114, no 18, p. 4597-4602Article in journal (Refereed) Published
Abstract [en]

The organic electronic ion pump (OEIP) provides flow-free and accurate delivery of small signaling compounds at high spatiotemporal resolution. To date, the application of OEIPs has been limited to delivery of nonaromatic molecules to mammalian systems, particularly for neuroscience applications. However, many long-standing questions in plant biology remain unanswered due to a lack of technology that precisely delivers plant hormones, based on cyclic alkanes or aromatic structures, to regulate plant physiology. Here, we report the employment of OEIPs for the delivery of the plant hormone auxin to induce differential concentration gradients and modulate plant physiology. We fabricated OEIP devices based on a synthesized dendritic polyelectrolyte that enables electrophoretic transport of aromatic substances. Delivery of auxin to transgenic Arabidopsis thaliana seedlings in vivo was monitored in real time via dynamic fluorescent auxin-response reporters and induced physiological responses in roots. Our results provide a starting point for technologies enabling direct, rapid, and dynamic electronic interaction with the biochemical regulation systems of plants.

Place, publisher, year, edition, pages
National Academy of Sciences , 2017. Vol. 114, no 18, p. 4597-4602
National Category
Plant Biotechnology
Identifiers
URN: urn:nbn:se:liu:diva-136747DOI: 10.1073/pnas.1617758114ISI: 000400358000030OAI: oai:DiVA.org:liu-136747DiVA, id: diva2:1090416
Note

Funding agencies: Knut and Alice Wallenberg Foundation ShapeSystems project [KAW 2012.0050]; Swedish Foundation for Strategic Research [RMA-11:0104]

Available from: 2017-04-24 Created: 2017-04-24 Last updated: 2017-11-22

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Poxson, DavidGabrielsson, RogerAlkattan, Aziz Yousif AzizSimon, DanielBerggren, Magnus
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