Modulation of Chloroplast Fructose-1,6-bisphosphatase Activity by Light

Autor:	Louise E. Anderson, Vimal K. Gupta, Hae-Min Chin
Rok vydání:	1979
Předmět:	chemistry.chemical_classification biology Physiology Fructose 1 6-bisphosphatase food and beverages Dehydrogenase Plant Science Kalanchoe biology.organism_classification Electron transport chain Chloroplast Enzyme Biochemistry chemistry Thylakoid Genetics biology.protein Ferredoxin
Zdroj:	Plant Physiology. 64:491-494
ISSN:	1532-2548 0032-0889
Popis:	Inhibitor experiments indicate that light effect mediatorII which is reductively activated by transfer of electrons from the photosynthetic electron transport system at or beyond ferredoxin, is involved in activation by light of fructose-1,6-bisphosphatase in the pea plant. Activation proceeds optimally when the pH is low and Mg2+ is 10 millimolar. Modulation by light results in increases in maximal velocity, apparently as a result of changes in enzyme conformation. Pea leaf thylakoids are effective in modulating the activity of glyceraldehyde-3-phosphate dehydrogenase but not of fructose-1,6-bisphosphatase or glucose-6-phosphate dehydrogenase in Kalanchoe stromal extracts. There is apparently species specificity for modulation of some, but not all, of the modulatable enzymes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b36ede07ec394e2096a4492979cf2701 https://doi.org/10.1104/pp.64.3.491 Zobrazit plný text záznamu