title: [Enzymes of carbohydrate metabolism in nectaries].
abstract: 1. The activity of some important enzymes of carbohydrate metabolism was investigated in several fractions of homogenized tissues of nectaries from Deutzia scabra and Convolvulus sepium in the secretion-phase. Considerable activity was found for the particle-associated hexokinase and the soluble fructokinase, phosphohexoseisomerase, sucrase, UTP-glucose-1-phosphate-uridyltransferase, acid and alkaline phosphatases, and pyrophosphatase. The activity of phosphoglucomutase was smaller, and that of starch-hydrolases and-phosphorylases and of sucrose-synthetase was very weak. 2. The meaning of these results in relation to the metabolism and the secretion of carbohydrates in nectaries is discussed.
authors.affiliation: Botanisches Institut der Technischen Hochschule Darmstadt, Darmstadt, Deutschland.
authors.forename: M A
authors.initials: MA
authors.lastname: de Fekete
authors.forename: H
authors.initials: H
authors.lastname: Ziegler
authors.forename: R
authors.initials: R
authors.lastname: Wolf
vernacular_title: Enzyme des Kohlenhydratstoffwechsels in Nektarien.