AI Article Synopsis
- Spores of Encephalitozoon intestinalis, E. cuniculi, and E. hellem showed significant viability reductions (3.2-log) when exposed to 254-nm UV light at low fluences (60, 140, and 190 J/m²).
- The inactivation rates of these spores were similar to those of certain Bacillus subtilis strains that lack DNA repair, suggesting a comparable response to UV exposure.
- This research implies that E. spp. spores are highly susceptible to UV treatment, making UV-sensitive B. subtilis strains effective models for testing UV reactor performance.
Article Abstract
When exposed to 254-nm UV, spores of Encephalitozoon intestinalis, Encephalitozoon cuniculi, and Encephalitozoon hellem exhibited 3.2-log reductions in viability at UV fluences of 60, 140, and 190 J/m(2), respectively, and demonstrated UV inactivation kinetics similar to those observed for endospores of DNA repair-defective mutant Bacillus subtilis strains used as biodosimetry surrogates. The results indicate that spores of Encephalitozoon spp. are readily inactivated at low UV fluences and that spores of UV-sensitive B. subtilis strains can be useful surrogates in evaluating UV reactor performance.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC152422 | PMC |
| http://dx.doi.org/10.1128/AEM.69.1.683-685.2003 | DOI Listing |
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