PROTEOMIC INSIGHT INTO THE MOLECULAR PRINCIPLES OF GRAPEVINE HABITUATION
2011
Two-dimensional gel electrophoresis coupled to protein microarray analysis was used to examine, for the first time, the molecular mechanisms of grapevine (Vitis vinifera L., cv. Limberger) habituation. The examination of 2-D maps derived from control and habituated cell culture revealed the presence of 55 protein spots displaying a differential expression pattern. These facts have provide a molecular evidence suggesting that the habituated cells can be used as a model for study of cell differentiation and plant defense mechanisms. Cell death, extracellular alkalinization and expression of genes responsible for the formation of the defense-related proteins were analyzed in suspension cultures with hormonal autonomy (habituation). Results obtained using habituated grapevine cells compared with non-habituated cells were different and strongly depended on the concentration of elicitor applied.
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