Cell Density Mediated Changes in Cyclic AMP Phosphodiesterase Activity during Cell Differentiation in Moss

  • S. Sharma
  • M. M. Johri
Part of the Basic Life Sciences book series (BLSC, volume 22)

Abstract

Cyclic 3′,5′-adenosine monophosphate (cAMP) enhances the differentiation of chloronema cell type in the protonema cultures of the moss Funaria hygrometrica (1, 2). The endogenous level of cAMP is 4- to 7-fold higher in chloronema cells than that in caulonema cells (1). Thus there is a reduction in the cAMP level during caulonema differentiation. This could involve a modulation of adenylate cyclase and/or cAMP phosphodiesterase activity. Since the initiation of caulonema differentiation (3), and the activity of cAMP phosphodiesterase (4) depend on the amount of inoculum, we have investigated cell-density-mediated changes in cAMP phosphodiesterase activity in relation to caulonema differentiation.

Keywords

Spend Medium Phosphodiesterase Activity cAMP Phosphodiesterase Wild Type Cell Line Moss Protonema 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer Science+Business Media New York 1983

Authors and Affiliations

  • S. Sharma
    • 1
  • M. M. Johri
    • 1
  1. 1.Molecular Biology UnitTata Institute of Fundamental ResearchBombayIndia

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