Comparison of UV inactivation of spores of three Encephalitozoon species with that of spores of two DNA repair-deficient Bacillus subtilis biodosimetry strains

Marilyn M. Marshall, Samuel Hayes, Jackie Moffett, Charles R Sterling, Wayne L. Nicholson

Research output: Contribution to journalArticle

19 Citations (Scopus)

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/m2, 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.

Original languageEnglish (US)
Pages (from-to)683-685
Number of pages3
JournalApplied and Environmental Microbiology
Volume69
Issue number1
DOIs
StatePublished - Jan 1 2003
Externally publishedYes

Fingerprint

Encephalitozoon
DNA Repair-Deficiency Disorders
DNA repair
Bacillus subtilis
Spores
repair
spore
inactivation
spores
DNA
Encephalitozoon hellem
Encephalitozoon cuniculi
endospores
DNA Repair
viability
kinetics
mutants
comparison

ASJC Scopus subject areas

  • Environmental Science(all)
  • Biotechnology
  • Microbiology

Cite this

Comparison of UV inactivation of spores of three Encephalitozoon species with that of spores of two DNA repair-deficient Bacillus subtilis biodosimetry strains. / Marshall, Marilyn M.; Hayes, Samuel; Moffett, Jackie; Sterling, Charles R; Nicholson, Wayne L.

In: Applied and Environmental Microbiology, Vol. 69, No. 1, 01.01.2003, p. 683-685.

Research output: Contribution to journalArticle

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