Adaptation of intertidal biofilm communities is driven by metal ion and oxidative stresses

摘要: Marine organisms in intertidal zones are subjected to periodical fluctuations and wave activities. To understand how microbes biofilms adapt the stresses, microbial metagenomes of from subtidal were compared. The genes responsible for resistance metal ion oxidative stresses enriched both 6-day 12-day biofilms, including associated with secondary metabolism, inorganic transport signal transduction extracellular polymeric substance metabolism. In addition, these more than biofilms. We hypothesize that a complex signaling network is used stress tolerance propose model illustrating relationships between functions environmental concentrations stresses. These findings show bacteria use diverse mechanisms indicate community structures modulated by