Strontium-induced repetitive calcium spikes in a unicellular green alga

  title={Strontium-induced repetitive calcium spikes in a unicellular green alga},
  author={Bauer and Plieth and Bethmann and Popescu and Vi Hansen and Simonis and Schonknecht},
  journal={Plant physiology},
  volume={117 2},
The divalent cation Sr2+ induced repetitive transient spikes of the cytosolic Ca2+ activity [Ca2+]cy and parallel repetitive transient hyperpolarizations of the plasma membrane in the unicellular green alga Eremosphaera viridis. [Ca2+]cy measurements, membrane potential measurements, and cation analysis of the cells were used to elucidate the mechanism of Sr2+-induced [Ca2+]cy oscillations. Sr2+ was effectively and rapidly compartmentalized within the cell, probably into the vacuole. The [Ca2… CONTINUE READING