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Title: Growth control of Saccharomyces cerevisiae through dose of oxygen atoms

To investigate the dose-dependent effects of neutral oxygen radicals on the proliferation as well as the inactivation of microorganisms, we treated suspensions of budding yeast cells with oxygen radicals using an atmospheric-pressure oxygen radical source, varying the fluxes of O({sup 3}P{sub j}) from 1.3 × 10{sup 16} to 2.3 × 10{sup 17 }cm{sup −2} s{sup −1}. Proliferation was promoted at doses of O({sup 3}P{sub j}) ranging from 6 × 10{sup 16} to 2 × 10{sup 17 }cm{sup −3}, and suppressed at doses ranging from 3 × 10{sup 17} to 1 × 10{sup 18 }cm{sup −3}; cells were inactivated by O({sup 3}P{sub j}) doses exceeding 1 × 10{sup 18 }cm{sup −3}, even when the flux was varied over the above flux range. These results showed that the growth of cells was regulated primarily in response to the total dose of O({sup 3}P{sub j})
Authors:
 [1] ;  [2] ; ;  [3] ;  [1]
  1. Plasma Medical Science Global Innovation Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601 (Japan)
  2. (Japan)
  3. Department of Electrical and Electronic Engineering, Faculty of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya 468-8502 (Japan)
Publication Date:
OSTI Identifier:
22489214
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; CONTROL; DOSES; INACTIVATION; OXYGEN; RADICALS; SACCHAROMYCES CEREVISIAE; SUSPENSIONS