Activation of particulate starch synthetase from Zea mays embryo |
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| Authors: | Juana Tandecarz Nelly Lavintman Carlos E. Cardini |
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| Affiliation: | Instituto de Investigaciones Bioquímicas “Fundación Campomar” and Facultad de Ciencias Exactas y Naturales, Obligado 2490, Buenos Aires 28, Argentina |
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| Abstract: | The effect of spermine on particulate ADP-glucose: starch synthetase from the developing embryo of sweet corn has been studied. Spermine induces a considerable increase of glucose incorporation from ADP-glucose into the starch granules. The change in kinetic constants, the distribution of incorporated glucose between amylose and amylopectin and the pattern of incorporation into starch granules or malto-oligosaccharides has been studied. The data were compared with those obtained with citrate ions. |
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| Keywords: | Gramineae maize starch synthetase spermine, citrate, activation. |
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