Abstract Title:

Antifungal activity of storage 2S albumins from seeds of the invasive weed dandelion Taraxacum officinale Wigg.

Abstract Source:

Protein Pept Lett. 2009 Nov 1. Epub 2009 Nov 1. PMID: 19594427

Abstract Author(s):

T I Odintsova, E A Rogozhin, I V Sklyar, A K Musolyamov, A M Kudryavtsev, V A Pukhalsky, A N Smirnov, E V Grishin, T A Egorov


In this work, we isolated and characterized novel antifungal proteins from seeds of dandelion (Taraxacum officinale Wigg.). We showed that they are represented by five isoforms, each consisting of two disulphide-bonded large and small subunits. One of them, To-A1 was studied in detail, including N-terminal amino acid sequencing of both subunits, and shown to display sequence homology with the sunflower 2S albumin. Using different assays we demonstrated that dandelion 2S albumins possess inhibitory activity against phytopathogenic fungi and the oomycete Phytophtora infestans at micromolar concentrations with various isoforms differing in their antifungal activity. Thus, 2S albumins of dandelion seeds represent a novel example of storage proteins with defense functions.

Study Type : In Vitro Study

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