Digitale Medien
Oxford, UK
:
Blackwell Publishing Ltd
Physiologia plantarum
25 (1971), S. 0
ISSN:
1399-3054
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Biologie
Notizen:
Cell wall preparations of Convolvulus callus were found to contain α-glucosidase activity, the bulk of which could be solubilized by solutions of high ionic strength. Callus tissue incubated in 0.5 M KC1 released α-glucosidase activity into the washing medium as distinct from tissue incubated in 1.0 M sorbitol. The wall-bound activity of KCl-treated tissue was found to be less than that of sorbitol-treated tissue, while the difference between both activities proved to be equal to the enzyme activity found in the washing medium of KCl-treated tissue. Since no trace of cell leakage was observed, it is concluded that α-glucosidase activity is located at the cell surface. The level of this surface-located enzyme was not affected by the presence of maltose in the nutrient medium.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1111/j.1399-3054.1971.tb01438.x
Permalink
|
Standort |
Signatur |
Erwartet |
Verfügbarkeit |