Changes in the Activity of Polygalacturonase-Inhibiting Protein during Potato Development

Changes in the Activity of Polygalacturonase-Inhibiting Protein during Potato Development The activity of a polygalacturonase-inhibiting protein was determined in growing potato plants and in stored potato tubers. The activity in leaves was higher than in stems, and it decreased by the end of the vegetative season. During the dormancy period, the inhibitory activity in tubers also changed. In the sprouting tubers, it was somewhat lower than in the nonsprouting ones, and, in sprouts, it was usually higher than in tubers. Both the plant polygalacturonase and the polygalacturonase secreted by phytopathogenic fungi after their penetration in plant tissues can serve as inhibitor's targets. Therefore, the inhibitor seems to control the resistance of plants to infection by particular pathogens, and this resistance is characteristic of definite developmental stages. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Changes in the Activity of Polygalacturonase-Inhibiting Protein during Potato Development

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/A:1012556508179
Publisher site
See Article on Publisher Site

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