Lipid elicitors of plant defense reaction

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Title in English Lipid elicitors of plant defese reaction
Authors

KAŠPAROVSKÝ Tomáš MIKEŠ Vladimír MILAT ML BLEIN JP

Year of publication 2002
Type Article in Proceedings
Conference Book of Abstracts of 7th Meeting of WG
MU Faculty or unit

Faculty of Science

Citation
Field Biochemistry
Keywords elicitors; lipids; plant defense
Description Low molecular lipid substances represent specific elicitors of plant defence reaction. We studied the elicitation mechanism by means of several inhibitors of calcium channels (La3+, verapamil, nifedipin, TMB-8 and ruthenium red) and fluorescence confocal microscopy with calcium green and compared the effect on the signal pathways induced by cryptogein, a typical fungal proteinaceous elicitor the receptor of which is localized on the plasma membrane, with ergosterol. The results suggest that the binding of ergosterol to an unknown receptor results in a mobilization of internal calcium stores (probably IP3 dependent) rather than in the effect on the plasma membrane channels.
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