Abstract
Biofilm structures are the main mode of evolutionary reproductive adaptation of bacteria, and even these features alone, are sufficient to make them the focus of genetic and physiological studies. As this life form is a multicellular-like life form coordinated by genetic and physiological programming, it is quite different from the planktonic form. In bacterial biofilms, which are often composed of more than one species in nature, there is a clear division of labor, nutrient channels, and a language (signaling) established between the cells forming the biofilm. On the other hand, biofilms, especially formed by pathogens, cause important industrial and clinical problems due to their high resistance to environmental stress conditions. Obtaining new data on the molecular basis of bacterial evolution and understanding the intra- and inter-species ecosystem relations in this context, as well as finding permanent solutions to the serious problems they create, are directly related to a detailed understanding of the genetic regulation of bacterial biofilm structures. Today, it is becoming increasingly certain that environmental signals effective in the transition from planktonic form to biofilm form and their receptor/response molecules are generally managed by similar systems and global regulator molecules in bacteria. In this sense; Besides the quorum sensing (QS) systems, cyclic adenosine monophosphate-catabolite suppressor protein (cAMP-CRP) and bis-(3′–5′) cyclic dimeric guanosine monophosphate (c-di-GMP) signaling molecules are of critical importance. In this review article, current information on bacterial biofilms is summarized and interpreted based on this framework.
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The authors would like to thank Oya Mısırdalı for her insaightful suggestions and careful reading the manuscript.
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This study was supported by Scientific and Technological Research Council of Turkey (TUBİTAK) (Grand number 119Z632).
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Akçelik, N., Akçelik, M. What makes another life possible in bacteria? Global regulators as architects of bacterial biofilms. World J Microbiol Biotechnol 38, 236 (2022). https://doi.org/10.1007/s11274-022-03376-4
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DOI: https://doi.org/10.1007/s11274-022-03376-4