Bacterial cellulose is NanoBio - material with interesting properties , which determine its wide application in many fields of medicine and technology. This produced biotechnologically material is characterized by , among others, great hygroscopicity , high chemical purity , unique structure and full biocompatibility , biofunkcjonalnością and lack of toxicity. However, the molecular basis of the biosynthesis of cellulose by Gluconacetobacter xylinus are not fully understood. The previously known sequences, and the function of genes and proteins directly involved in the metabolic pathway leading to the synthesis of b- 1 ,4 -glucan are not sufficient to understand the dependency network and regulations governing the intensity of the process and the properties of the secreted cellulose. Seems probable involvement in these mechanisms global regulators of gene expression , described previously known mechanisms for controlling biofilm formation model organisms . Because of its potential application in both their native and modified , beyond the external and internal medical use, the bacterial cellulose is a material of the future , and the discovery of the molecular systems under the control of its biosynthesis could lead to a significant increase in its production on an industrial scale .