Ca2+ Uptake and Its Regulation in the Cyanobacterium Nostoc MAC

  title={Ca2+ Uptake and Its Regulation in the Cyanobacterium Nostoc MAC},
  author={P. K. Pandey and Brij Bhushan Singh and Rajesh Mishra and Prakash Singh Bisen},
  journal={Current Microbiology},
The uptake of Ca2+ and its regulation in the cyanobacterium Nostoc MAC were investigated. Cation uptake pattern was found to be biphasic, consisting of (a) rapid binding of cations to the negatively charged cell surface and (b) its metabolism dependent on intracellular import at least up to 60 min with the saturation at 2 mM Ca2+ (K m , 1.5 mM, Vmax 42.1 nmol Ca2+ mg−1 protein min−1 ). The cellular Ca2+ uptake was light and ATP dependent, and the addition of 3(3,4-dichlorophenyl)-1,1-dimethyl… CONTINUE READING


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