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Are elicitins cryptograms in plant-Oomycete communications?
It is proposed that elicitins could interact with regulating cell wall proteins before they reach the plasma membrane, and the plant reactivity or nonreactivity status could result from the equilibrium reached during this interaction. Expand
Mediation of elicitin activity on tobacco is assumed by elicitin-sterol complexes.
The binding kinetics of elicitins are related to their biological effects, which constitutes the first evidence that binding sites could be the biological receptors. Expand
A lipid transfer protein binds to a receptor involved in the control of plant defence responses
Binding and in vivo competition experiments point out that these binding sites are common to LTP1 and elicitins and confirm that they are the biological receptors of elicitins. Expand
Elicitins, proteinaceous elicitors of plant defense, are a new class of sterol carrier proteins.
The results show that elicitins studied interact with dehydroergosterol in the same way, but with some time-dependent differences, and afford the first evidence for a molecular activity of elicitins which appears to be extracellular sterol carrier proteins. Expand
Elicitation of tobacco cells with ergosterol activates a signal pathway including mobilization of internal calcium
The use of several inhibitors of calcium channels and a protein-kinase inhibitor 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. Expand
The association between high-activity COMT allele and alcoholism.
The relationship between the COMT polymorphism and alcoholism in the Czech male population was confirmed and the significant difference between male alcoholics and male controls in allele and genotype frequencies was found. Expand
Ergosterol treatment leads to the expression of a specific set of defence-related genes in tobacco
Examination of the expression of defence-related genes after the ergosterol treatment of tobacco Nicotiana tabacum plants shows that ergosterols is able to activate theexpression of a number of defence genes and could increase resistance against pathogens. Expand
The fungal elicitor cryptogein is a sterol carrier protein
The results show that cryptogein has one binding site with strong affinity for dehydroergosterol, and this protein catalyzes the transfer of sterols between phospholipidic artificial membranes, the first evidence for the existence of an extracellular sterol carrier protein and for a molecular activity of Cryptogein. Expand
Elicitins trap and transfer sterols from micelles, liposomes and plant plasma membranes.
Using elicitins, proteins secreted by some phytopathogenic Oomycetes (Phytophthora) known to be able to transfer sterols between phospholipid vesicles, the transfer of sterols between micelles,Expand
Fatty acids bind to the fungal elicitor cryptogein and compete with sterols
It is reported that cryptogein binds fatty acids, and it is shown that C7 to C12 saturated and C16 to C22 unsaturated fatty acids are the best ligands. Expand