Abstract
The temperature dependence of membrane fluidity has been studied by means of spin labeling of intact Dunaliella cells, in the presence of different NaCl concentrations. The obtained data support the proposed hypothesis that the permeability of the chloroplast envelope to fructose-6-phosphate at higher temperatures in the basic regulatory mechanism for sucrose synthesis in Dunaliella.
Similar content being viewed by others
Abbreviations
- EPR:
-
electron paramagnetic resonance
- F-6-P:
-
fructose 6-phosphate
- UDP:
-
uridine biphosphate
- UDPG:
-
uridine biphosphoglucose
References
Gaffney, B.J., McNamee, C.M.: Spin label measurements in membranes. In: Methods in enzymology, pp. 161–198, Vol. 32, Colowick, S.P., Kaplan, N.O., eds., London-New York: Academic Press 1974
Hubbell, W.L., McConnell, H.M.: Spin label studies of the excitable membranes of nerve and muscle. Proc. Natl. Acad. Sci. USA 61, 12–16 (1968)
Hubbell, W.L., McConnell, H.M.: Molecular motion in spinlabeled phospholipids and membranes. J. Amer. Chem. Soc. 93, 314–326 (1971)
Müller, W.: Die thermische und osmotische Regulation der Saccharose-Biosynthese in Dunaliella. Thesis Universität Tübingen (W-Germany) (1977)
Müller, W., Wegmann, K.: Sucrose biosynthesis in Dunaliella. I. Thermic and osmotic regulation. Planta 141, 155–158 (1978a)
Müller, W., Wegmann, K.: Sucrose biosynthesis in Dunaliella. II. Isolation and properties of sucrose phosphate synthetase. Planta 141, 159–163 (1978b)
Overath, P., Hill, F.F., Lamnek-Hirsch, I.: Biogenesis of E. coli membrane: Evidence for randomization of lipid phase. Nature New Biol. 234, 264–267 (1971)
Sackmann, E., Träuble, H., Galla, H.-J., Overath, P.: Lateral diffusion, protein mobility and phase transition in Escherichia coli membranes. A spin label study. Biochemistry 12, 5360–5369 (1973)
Seelig, J.: Spin label studies of oriented smectic liquid crystals. A model system for biomembranes. J. Amer. Chem. Soc. 92, 3881–3887 (1970)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Müller, W., Wegmann, K. Sucrose biosynthesis in Dunaliella . Planta 141, 165–167 (1978). https://doi.org/10.1007/BF00387884
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00387884