Elicitation of tobacco cells with ergosterol activates a signal pathway including mobilisation of internal calcium

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Authors

KAŠPAROVSKÝ Tomáš MILAT ML MIKEŠ Vladimír HAVEL Ladislav

Year of publication 2003
Type Article in Periodical
Magazine / Source Plant Physiol Biochem
MU Faculty or unit

Faculty of Science

Citation
Field Biochemistry
Keywords ergosterol; calcium channels; elicitor; Phytophthora; tobacco
Description Ergosterol interacts with tobacco suspension (Nicotiana tabacum) cells and triggers pH changes of extracellular medium, oxidative burst and synthesis of phytoalexins. The use of several inhibitors of calcium channels (La3+, TMB-8, verapamil, ruthenium red, nifedipine) and a protein-kinase inhibitor (staurosporin) suggests that the elicitation with ergosterol includes the mobilization of internal calcium stores mediated by inositol 1,4,5-trisphosphate and serine/threonine protein kinases.
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