Many maize inbreds lack an endosperm cytosolic phosphoglucomutase

Starch gel electrophoresis of extracts from developing maize (Zea mays L.) endosperms 22 days postpollination reveals only a single zone of phosphoglucomutase activity in the majority of the inbreds tested. The other inbreds had the expected two zones of activity. The activity that is present in all...

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Veröffentlicht in:	Plant physiology (Bethesda) 1990-08, Vol.93 (4), p.1650-1653
Hauptverfasser:	Pan, D. (University of Wisconsin, Madison, WI), Strelow, L.I, Nelson, O.E
Format:	Artikel
Sprache:	eng
Schlagworte:	550200 - Biochemistry ACTIVIDAD ENZIMATICA ACTIVITE ENZYMATIQUE Amyloplasts BASIC BIOLOGICAL SCIENCES beta -phosphoglucomutase Biological and medical sciences BIOLOGY BODY CEREALS CITOPLASMA Communications Corn CYTOPLASME ELECTROPHORESIS ENDOSPERM ENDOSPERMA ENDOSPERME ENZYME ACTIVITY ENZYMES Fundamental and applied biological sciences. Psychology Gels GENETICS Genotypes GRASS Inbreeding ISOENZIMAS ISOENZYME ISOENZYMES LIGNEE CONSANGUINE LILIOPSIDA LINEAS CONSANGUINEAS MAGNOLIOPHYTA MAIZE METABOLISM Metabolism and Enzymology PHOSPHORUS-GROUP TRANSFERASES PHOSPHOTRANSFERASES PLANT BREEDING Plant physiology and development PLANT TISSUES PLANTS Starches TISSUES TRANSFERASAS TRANSFERASE TRANSFERASES ZEA MAYS
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Zusammenfassung:	Starch gel electrophoresis of extracts from developing maize (Zea mays L.) endosperms 22 days postpollination reveals only a single zone of phosphoglucomutase activity in the majority of the inbreds tested. The other inbreds had the expected two zones of activity. The activity that is present in all inbreds is the amyloplast isozyme while the absent form is a cytosolic enzyme. The lack of the cytosolic isozyme has no discernible phenotypic consequences
ISSN:	0032-0889 1532-2548
DOI:	10.1104/pp.93.4.1650