Chemical basis of the resistance of barley seeds to pathogenic fungi.

Abstract

The 5-(n)-alkylresorcinol fraction of the epicuticular waxes of Hordeum vulgare seeds appeared to be responsible for their in-born resistance to pathogenic fungi such as Aspergillus niger and Penicillium crysogenum. The antifungal properties of this fraction were evaluated qualitatively and quantitatively with a novel bioassay where the extreme lipophilicity of these compounds was taken into account. The minimum inhibitory concentration in the fungi tested ranged from 5.6 to 10 micrograms cm-2 for the alkyresorcinols. The behaviour of the different cultivars against these fungi could be predicted by measuring the natural amount of resorcinols of each variety by TLC-scanning densitometry. The ranking of cultivars thus established correlated well with the field behaviour of each cultivar, providing a useful and rapid method for predicting the behaviour against fungi of new varieties being developed.

Statistics

0102030'00'02'04'06'08'10'12'14'16
Citations per Year

62 Citations

Semantic Scholar estimates that this publication has 62 citations based on the available data.

See our FAQ for additional information.

Cite this paper

@article{Garca1997ChemicalBO, title={Chemical basis of the resistance of barley seeds to pathogenic fungi.}, author={Sebastian Garc{\'i}a and Carlos Garcia and Horacio Heinzen and Patrick Moyna}, journal={Phytochemistry}, year={1997}, volume={44 3}, pages={415-8} }