The Effects of a High Concentration of Dissolved Oxygen on Actinobacteria from Lake Baikal

Among the diversity of microorganisms, rarest and least explored are microorganisms that live in conditions high oxygen environment can experience effects natural oxidative stress. Here we suggest actinobacteria Lake Baikal, sampled littoral zone, may produce products with antioxidant activity. The current study aimed to assess experimentally increased amounts ozone on morphology actinobacteria, DNA mutations, potential. In this experiment, cultivated liquid culture under aeration concentrations dissolved ozone. Over a period three months, bacterial samples were collected every week for further analysis. Morphological changes assessed using Gram method. A search mutations was conducted highly conserved 16S rRNA gene. evaluation activity performed DPPH test. biotechnological potential evaluated high-resolution chromatography-mass spectrometry approaches supplemented dereplication products. We demonstrated synthesis at five by Streptomyces sp. strain only levels. Additionally, showed morphological nucleotide Rhodococcus exposed Consequently, an concentration influence Baikal actinobacteria.