From string rewriting to logical metabolic systems

In this paper we focus on the notion of metabolism and the way it can be expressed in symbolic terms. We show as an adequate logical formalization of this concept could help to unify several approaches based in string rewriting mechanism. This viewpoint suggests new perspectives in the search for more powerful and general methods in the description of symbolic dynamical systems where evolution obeys some internal laws of structural recombination (L-systems, Grammar systems, H-systems, Ecogrammars, DNA computing models).