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Potassium antimonite was used to localize Ca2+ in the apical bud cells of spruce from July 1999 to May 2000. During the period of active growth (July 14), Calcium precipitates, an indication of Ca2+ localization, were mainly distributed in vacuoles, intercellular spaces and cell walls. Few Ca2+ deposits localized in the cytosol and nucleus, showing a low level of the cytosolic and nuclear Ca2+ concentration...
The changes of Ca2+ levels in young leaf cells of bromegrass under different controlled chilling temperatures were investigated by an antimonite precipitation cytochemical method. The main results were as follows: under 25/20°C (day/night) temperature and 14 h photoperiod, electron-dense Ca2+ antimonite precipitates, indicators of Ca2+ localization, were mainly localized in the vacuoles, cell walls...
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