[Antistress cross-effects of extracellular metabolites of bacteria, archaea, and yeasts: a review].

This paper reviews examples of specific and global responses of microorganisms and the characteristics of stress responses involving extracellular signaling metabolites. Information regarding the protective and reactivating effects produced by active exometabolites of representatives of domains of bacteria, archaea, and eukaryotes is summarized, and interdomain cross-responses to stressors are demonstrated.