Europium improves the transport of quercetin through Arabidopsis thaliana
- 344 Downloads
The effect of a rare earth element europium (Eu) on the long-distance transport of a plant defence compound quercetin (Q) was investigated. The complex Q/Eu3+ was synthesized in a HEPES buffer and tested for its transport ability through Arabidopsis thaliana and its ability to interact with target molecules in plant cells. Our results show that complexation with Eu3+ enhanced the transport of Q through Arabidopsis roots. During the transport, the complex degraded and released a free Q to tissues where Q was originally not available. Thus, the plant became better supplied with the defensive compound Q. The obtained spectrophotometric data imply that one of the reasons for the Q/Eu3+ degradation was the interaction of the complex with double stranded RNAs (dsRNAs) present in Arabidopsis. Since dsRNAs are replicative forms of plant RNA viruses, the ability of Q/Eu3+ to release a free Q in their presence suggests further investigation of this complex as a potential antiviral agent.
Additional key wordsantiviral agents long-distance movement polyphenols Q/Eu3+ complex
satellite-associated Cucumber mosaic virus
diphenylboric acid-2 aminoethyl ester
Unable to display preview. Download preview PDF.
- Buer, C.S., Muday, G.K.: The transparent testa 4 mutation prevents flavonoid synthesis and alters auxin transport and the response of Arabidopsis roots to gravity and light. — Plant Cell 16: 1191–1205, 2004.Google Scholar
- Emsley, J.: An A-Z guide to the elements. — In: Emsley, J. (ed.): Nature’s Building Blocks. Pp. 141–142. Oxford University Press, Oxford 2003.Google Scholar
- Frangne, N., Eggmann, T., Koblischke, C., Weissenbock, G., Martinoia, E., Klein, M.: Flavone glucoside uptake into barley mesophyll and Arabidopsis cell culture vacuoles. Energization occurs by H+-antiport and ATP-binding cassette-type mechanisms. — Plant Physiol. 128: 726–733, 2002.PubMedCentralPubMedCrossRefGoogle Scholar
- Rusak, G., Krajačić, M., Krsnik-Rasol, M., Gutzeit, H.O.: Quercetin influences response in Nicotiana megalosiphon infected by satellite-associated cucumber mosaic virus. — J. Plant Dis. Protect. 114: 145–150, 2007.Google Scholar