Kocuria Strains from Unique Radon Spring Water from Jachymov Spa

0556000 - MBÚ 2023 RIV CH eng J - Journal Article
Timkina, E. - Drábová, L. - Palyzová, Andrea - Řezanka, Tomáš - Matátková, O. - Kolouchová, I.
Kocuria Strains from Unique Radon Spring Water from Jachymov Spa.
Fermentation. Roč. 8, č. 1 (2022), č. článku 35. E-ISSN 2311-5637
Institutional support: RVO:61388971
Keywords : sp nov. * deinococcus-radiodurans * amino-acids * fatty-acids * dna-damage * micrococcus * resistance * scytonemin * bacteria * biosynthesis * extreme conditions * Kocuria sp * radioactivity * radon * spa
OECD category: Plant sciences, botany
Impact factor: 3.7, year: 2022
Method of publishing: Open access
https://www.mdpi.com/2311-5637/8/1/35

Members of the genus Kocuria are often found in soils contaminated with toxic metals or exposed to high levels of ionizing radiation. The use of classical cultivation technics often leads to the isolation of Kocuria sp. from underground spring waters. These bacterial isolates have to adapt their metabolism to survive in such extreme environments. Four bacterial isolates of the genus Kocuria (Kocuria sp. 101, 208, 301, and 401) were obtained from radon spring water (Jachymov, Czech Republic). These isolates were tested for their ability to withstand stress and extreme conditions. Growth was observed at a temperature range of 10-45 degrees C with optimal growth temperature between 20 and 30 degrees C. The content of polyunsaturated fatty acids in all four isolates was proved to be temperature-dependent. The strain Kocuria sp. 301 showed high resistance to all studied extreme conditions (UV radiation, desiccation, and free radicals in medium). The results suggest that isolates from radioactive springs might have developed mechanisms that help them survive under several extreme conditions and could be used in biotechnological production.
Permanent Link: http://hdl.handle.net/11104/0330394