ISSN:
1399-3054
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
A hypertonic mannitol shock enhanced K+ uptake by Beta vulgaris L. (cv. early flat Egyptian) storage tissue slices and also increased the inositol 1,4,5-trisphosphate [Ins(1,4,5)P3) content of the slices as well as of Sorghum bicolor L. (cv. Hazera) and Vigna radiata L. (cv. unknown) roots. K+ uptake by B. vulgaris slices could be enhanced, in the absence of mannitol, by application of effectors that mimic products of the phosphatidylinositol 4,5-bisphosphate (PIP2) turnover cycle. Maximal Ins (1,4,5)P3 content was found 10 min after hypertonic induction and maximal K+ uptake was obtained 10 min later. The hypertonic mannitol shock, administered to intact B. vulgaris slices, also enhanced the phosphorylation of a 39 kDa protein in the plasmalemma.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1399-3054.1989.tb05648.x
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