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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
Defense Responses in Grapevine Leaves Against Botrytis cinerea Induced by Application of a Pythium oligandrum Strain or Its Elicitin, Oligandrin, to Roots.
The potential of P. oligandrum or its purified elicitin to limit the progression of B. cinerea on grapevine leaf and the resulting plant-microorganism interactions are described. 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
Cytological Characterization of Elicitin-Induced Protection in Tobacco Plants Infected by Phytophthora parasitica or Phytoplasma.
ABSTRACT Elicitins, small proteins secreted by Phytophthora and Pythium spp., display the ability to induce plant resistance toward pathogens. Ultrastructural investigations of cryptogein-treatedExpand
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
Proteinaceous Elicitors of Plant Defense Responses
The role of microbial proteins as signal molecules activating plant defense responses is now well recognized. The properties of several recently characterized proteinaceous elicitors are reviewed.Expand
Effects of fusaric acid on cells from tomato cultivars resistant or susceptible toFusarium oxysporum f. sp.Lycopersici
Preliminary experiments suggest that fusaric acid was partially metabolized by ‘Rio grande’ suspension cells, however, no detoxified forms of fusAric acid were detected either in cells or in culture filtrates. Expand