Biologia Plantarum

, Volume 59, Issue 3, pp 554–559 | Cite as

Europium improves the transport of quercetin through Arabidopsis thaliana

  • I. Šola
  • I. Piantanida
  • I. Crnolatac
  • G. Rusak
Original Papers


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 words

antiviral agents long-distance movement polyphenols Q/Eu3+ complex 



satellite-associated Cucumber mosaic virus


diphenylboric acid-2 aminoethyl ester


double-stranded RNA




4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid




single-stranded RNA


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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Department of Biology, Faculty of ScienceUniversity of ZagrebZagrebCroatia
  2. 2.Division of Organic Chemistry and BiochemistryRuĐer Bošković InstituteZagrebCroatia

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