Developmental changes of radish beta-fructofuranosidase isozymes in far-red illuminated and etiolated seedlings

The developmental changes of beta-fructofuranosidase (EC 3.2.1.26) (beta-Fase) in radish cotyledons and hypocotyls have been investigated by isoelectrofocusing. Far-red light strongly stimulates the development of all forms of the enzymes. Two beta-Fase classes have been distinguished on the basis o...

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Published inPlant Science Letters (Netherlands) Vol. 21; no. 3
Main Authors Largitte, F.C, Klein-Eude, D, Lambert, C. (Faculte des Sciences de Rouen, Mont Saint Aignan (France). Centre de Recherche de Biochimie et Physiologie Cellulaires, Lab. de Photobiologie)
Format Publication
LanguageEnglish
Published 01.05.1981
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Summary:The developmental changes of beta-fructofuranosidase (EC 3.2.1.26) (beta-Fase) in radish cotyledons and hypocotyls have been investigated by isoelectrofocusing. Far-red light strongly stimulates the development of all forms of the enzymes. Two beta-Fase classes have been distinguished on the basis of the isoelectric point (pI). Class I enzymes which have the most acidic pI-values gradually decreased during development, whereas class II enzymes with neutral pI-values increased. The effect of far-red light was more pronounced in the cotyledons than in the hypocotyls. The present results suggest that far-red light may control the sequential appearance of class I and class II isozymes.
Bibliography:F60
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