Examination of peak power dependence in the UV inactivation of bacterial spores

被引：28

作者：

Rice, JK

Ewell, M

机构：

[1] USN, Res Lab, Div Chem, Washington, DC 20375 USA

[2] Ctr Marine Biotechnol, Baltimore, MD 21202 USA

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 2001年 / 67卷 / 12期

关键词：

D O I：

10.1128/AEM.67.12.5830-5832.2001

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

We examine whether the rate of delivery of photons from a UV radiation source has an effect on the inactivation of spores. We directly compare the output of a high-peak-power UV laser source at 248 nm to a low-power continuous lamp source (254 nm) in the inactivation of Bacillus subtilis spores. The two UV sources differ by a factor of 10(8) in peak power. Contrary to previous reports, no clear differences in spore survival were observed.

引用

收藏

页码：5830 / 5832

页数：3

相关论文

共 18 条

[1] THYMINE PHOTOPRODUCTS BUT NOT THYMINE DIMERS FOUND IN ULTRAVIOLET-IRRADIATED BACTERIAL SPORES [J].

DONNELLAN, JE ;

SETLOW, RB .

SCIENCE, 1965, 149 (3681) :308-+

[2]

DUNN J, 1995, FOOD TECHNOL-CHICAGO, V49, P95

[3] BINDING OF DNA TO ALPHA-BETA-TYPE SMALL, ACID-SOLUBLE PROTEINS FROM SPORES OF BACILLUS OR CLOSTRIDIUM SPECIES PREVENTS FORMATION OF CYTOSINE DIMERS, CYTOSINE-THYMINE DIMERS, AND BIPYRIMIDINE PHOTOADDUCTS AFTER UV IRRADIATION [J].

FAIRHEAD, H ;

SETLOW, P .

JOURNAL OF BACTERIOLOGY, 1992, 174 (09) :2874-2880

[4] PREVENTION OF DNA DAMAGE IN SPORES AND INVITRO BY SMALL, ACID-SOLUBLE PROTEINS FROM BACILLUS SPECIES [J].

FAIRHEAD, H ;

SETLOW, B ;

SETLOW, P .

JOURNAL OF BACTERIOLOGY, 1993, 175 (05) :1367-1374

[5]

IRVING F, 1997, ALOETR19970081

[6] PHOTOREACTIVATION OF ULTRAVIOLET-IRRADIATED, PLASMID-BEARING, AND PLASMID-FREE STRAINS OF BACILLUS-ANTHRACIS [J].

KNUDSON, GB .

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1986, 52 (03) :444-449

[7] The development of photosensitized pulsed and continuous ultraviolet decontamination techniques for surfaces and solutions [J].

McDonald, KF ;

Curry, RD ;

Clevenger, TE ;

Brazos, BJ ;

Unklesbay, K ;

Eisenstark, A ;

Baker, S ;

Golden, J ;

Morgan, R .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 2000, 28 (01) :89-96

[8] ULTRAVIOLET-IRRADIATION OF DNA COMPLEXED WITH ALPHA-BETA-TYPE SMALL, ACID-SOLUBLE PROTEINS FROM SPORES OF BACILLUS OR CLOSTRIDIUM SPECIES MAKES SPORE PHOTOPRODUCT BUT NOT THYMINE DIMERS [J].

NICHOLSON, WL ;

SETLOW, B ;

SETLOW, P .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1991, 88 (19) :8288-8292

[9] Role of the spore coat layers in Bacillus subtilis spore resistance to hydrogen peroxide, artificial UV-C, UV-B, and solar UV radiation [J].

Riesenman, PJ ;

Nicholson, WL .

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2000, 66 (02) :620-626

[10]

Setlow P., 1988, Comments on Molecular and Cellular Biophysics. Comments on Modern Biology: Part A, V5, P253