Table of Contents
Plants, Volume 7, Issue 4 (December 2018)
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Cover Story (view full-size image) Plant parasitic nematodes infect a wide range of crop plants, and control measures have remained [...] Read more. Plant parasitic nematodes infect a wide range of crop plants, and control measures have remained limited. Plant flavonoids comprise a class of secondary metabolites with potential activities as defence compounds, chemical repellents, and developmental modulators during plant–nematode interactions. As shown here, the parasitic root knot nematode (Meloidogyne javanica) feeds on cells in the vascular bundle of the plant, Medicago truncatula. The resulting development of a root gall is characterized by the induction of autofluorescent flavonoids (cover photo), in particular in dividing cells of the pericycle and cortex surrounding developing giant cells. The induction of certain flavonoids has been associated with enhanced resistance towards parasitic nematodes. The identification of bioactive flavonoids could lead to better breeding strategies to increase nematode resistance in crops. View this paper.