Abstract：
:The repair of DNA damage caused by ultraviolet radiation (UVR) is well understood in both lower and higher organisms. Genetic studies carried out at optimum temperature for growth, 37 °C in Escherichia coli, have revealed the major pathways of DNA repair. We show that E. coli cells grown at 20 °C are more sensitive to UVR than cells grown at 37 °C. The analysis of knockout mutants demonstrates that cells impaired in recombinational DNA repair pathways show increased UV sensitivity at 20 °C. Cells with mutations in the nucleotide excision repair (NER) pathway genes are highly sensitive to UVR when grown at 37 °C and retain that sensitivity when grown at 20 °C, whereas wild-type cells are not sensitive when grown at 37 °C but become more sensitive to UVR when grown at low temperatures. Our results taken along with reports from the literature suggest that the UVR sensitivity of E. coli cells at low temperature could be due to impaired NER function.
journal_name
Can J Microbioljournal_title
Canadian journal of microbiologyauthors
Mangoli S,Rath D,Goswami M,Jawali Ndoi
10.1139/cjm-2013-0874subject
Has Abstractpub_date
2014-05-01 00:00:00pages
327-31issue
5eissn
0008-4166issn
1480-3275journal_volume
60pub_type
杂志文章abstract：:Fecal coliforms (FC) counts were compared with Escherichia coli counts in differently contaminated freshwater samples (n = 166). FC were enumerated by plate count on triphenyl 2,3,5-tetrazolium chloride Tergitol medium. Escherichia coli were enumerated by the most probable number microplate method based on the detecti...
journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/W07-033
更新日期：2007-06-01 00:00:00
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journal_title：Canadian journal of microbiology
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journal_title：Canadian journal of microbiology
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doi：10.1139/w2012-083
更新日期：2012-09-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m77-089
更新日期：1977-05-01 00:00:00
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journal_title：Canadian journal of microbiology
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doi：10.1139/m76-115
更新日期：1976-06-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：
更新日期：2000-04-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m76-213
更新日期：1976-10-01 00:00:00
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更新日期：2009-12-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m86-171
更新日期：1986-12-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m84-164
更新日期：1984-08-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/cjm-2018-0333
更新日期：2019-05-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m97-030
更新日期：1997-03-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m78-022
更新日期：1978-02-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w06-064
更新日期：2006-11-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m78-053
更新日期：1978-03-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m88-106
更新日期：1988-05-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m75-093
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更新日期：2010-11-01 00:00:00
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journal_title：Canadian journal of microbiology
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更新日期：1981-05-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w09-030
更新日期：2009-07-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m91-144
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/m82-098
更新日期：1982-06-01 00:00:00
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journal_title：Canadian journal of microbiology
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更新日期：2003-03-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
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更新日期：2001-10-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w10-047
更新日期：2010-07-01 00:00:00
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journal_title：Canadian journal of microbiology
pub_type： 杂志文章
doi：10.1139/w11-099
更新日期：2011-12-01 00:00:00
