Polyamine metabolism in hants : Arginine and omithine decarboxylase activity in ripeningTrlticum durum seeds |
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Authors: | M Cecilia Anguillesi Isa Grilli C Floris |
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Institution: | 1. Department of Plant Sciences, Plant Physiology Laboratory, Via Luca Ghini no. 5, 56100, Pisa, Italy
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Abstract: | The pattern of the activity of arginine decarboxylase (ADC) and omithine decarboxylase (ODC) involved in polyamine synthesis
in ripening wheat seeds was examined. The aim was to study the polyamines and the activity of the two enzymes in correlation
with the growth processes occurring in the developing wheat seeds. The results obtained showed a very different pattern of
polyamine content in the two organs of caryopsis, and that the two enzymes in the embryos have a higher activity than in the
endosperms. Moreover, while in the embryos the ADC exhibits higher activity than the ODC, in the endosperms the activity of
ODC is about similar to that of ADC. This pattern is discussed in relation to the different histological characteristics of
embryo and endosperm tissues during seed development. |
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Keywords: | Additional index words" target="_blank">Additional index words Embryo endosperm |
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