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  • Title: Isolation of a polygalacturonase-inhibiting protein (PGIP) from wheat.
    Author: Kemp G, Bergmann CW, Clay R, Van der Westhuizen AJ, Pretorius ZA.
    Journal: Mol Plant Microbe Interact; 2003 Nov; 16(11):955-61. PubMed ID: 14601663.
    Abstract:
    Evidence for the presence of a polygalacturonase-inhibiting protein (PGIP) from a monocotyledonous cereal is presented. A 40.3-kDa PGIP that was closely associated with the cell wall was acetone-extracted and purified from wheat (Triticum aestivum L.) leaves and stems. Wheat PGIP exhibited a highly selective inhibitory activity against endopolygalacturonase (EPG) from various fungi. Of nine EPG tested, wheat PGIP only inhibited EPG from Cochliobolus sativus, a pathogen of the tribe Poaceae. A short N-terminal amino acid sequence of wheat PGIP shows no similarity to any other characterized PGIP.
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