Relationship Between Endopeptidase and H2O2 During the Aging of Wheat Leaf (in English) |
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Authors: | ZHANG Zhi-Gang RUI Qi XU Lang-Lai |
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Abstract: | The relationship between hydrogen peroxide (H2O2) and endopeptidase(EP) in wheat (Triticum aestivum L. cv. Yanmai 158) leaves was studied during natural and artificial aging. Rapid accumulation of endogenous H2O2 and marked increase of EP activity were observed during the later phase of aging. A new EP isozyme with higher activity was detected by electrophoresis on polyacrylamide gels containing denatured heamoglobin. With the increase of exogenous H2O2, the activity of EP increased at first and then decreased. |
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Keywords: | endopeptidase H2O2 wheat leaf aging |
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