Premium
Fotometrische Messung der PEP‐Carboxylase‐Aktivität in Maisblättern unter Berücksichtigung des Entwicklungszustandes der Pflanze
Author(s) -
Möller G.,
Stamp P.,
Geisler G.
Publication year - 1977
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19771400502
Subject(s) - phosphoenolpyruvate carboxylase , pyruvate carboxylase , chemistry , zoology , phosphoenolpyruvate carboxykinase , botany , horticulture , biochemistry , biology , enzyme
Photometric estimation of the activity of phosphoenolpyruvate carboxylase in maize leaves as depending on plant development In order to measure photometrically the activity of Phosphoenolpyruvate carboxylase in homogenates of maize leaves, a method for larger test series was developed. When optimal conditions for the mixture, the pH‐value and the temperature of the test mixture had been developed, reliable values were measured. The activities of Phosphoenolpyruvate carboxylase are dependant on the age of maize leaves. The activities increased during the first ten days of leaf development. The following twenty days were marked by a relatively small reduction of the activity. Thereafter a steady decline of the activity took place.