Abstract:
:Cadmium is a widespread pollutant that has been associated with oxidative stress, but the mechanism behind this effect in prokaryotes is still unclear. In this work, we exposed two glutathione deficient mutants (DeltagshA and DeltagshB) and one respiration deficient mutant (DeltaubiE) to a sublethal concentration of cadmium. The glutathione mutants show a similar increase in reactive oxygen species as the wild type. Experiments performed using the DeltaubiE strain showed that this mutant is more resistant to cadmium ions and that Cd-induced reactive oxygen species levels were not altered. In the light of these facts, we conclude that the interference of cadmium with the respiratory chain is the cause of the oxidative stress induced by this metal and that, contrary to previously proposed models, the reactive oxygen species increase is not due to glutathione depletion, although this peptide is crucial for cadmium detoxification.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Pacheco CC,Passos JF,Castro AR,Moradas-Ferreira P,De Marco Pdoi
10.1007/s00203-007-0316-8subject
Has Abstractpub_date
2008-03-01 00:00:00pages
271-8issue
3eissn
0302-8933issn
1432-072Xjournal_volume
189pub_type
杂志文章abstract::Xanthan-deficient mutants of Xanthomonas axonopodis pv. citri, the bacterium responsible for citrus canker, were generated by deletion and marker exchange of the region encoding the carboxy-terminal end of the first glycosyltransferase, GumD. Mutants of gumD did not produce xanthan and remained pathogenic in citrus pl...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-007-0227-8
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-020-02003-w
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abstract::A Gram-stain-negative, strictly aerobic, beige-pigmented, motile, chemoheterotrophic, rod-shaped or ovoid bacterium, designated strain KMU-37T, was isolated from seawater at Najeong Beach in the Republic of Korea. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that the novel isolate was affiliated ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-016-1329-y
更新日期:2017-05-01 00:00:00
abstract::Flow cytometry (FCM) in conjunction with immunocytochemical-labeling was used to analyze and screen a population of Escherichia coli clones containing a genomic library from the oil-degrading microorganism Acinetobacter calcoaceticus RAG-1 surface antigens. Reconstruction experiments using mixed populations indicated ...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00422282
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-010-0667-4
更新日期:2011-04-01 00:00:00
abstract::A total of 13 killer toxin producing strains belonging to the genera Saccharomyces, Candida and Pichia were tested against each other and against a sensitive yeast strain. Based on the activity of the toxins 4 different toxins of Saccharomyces cerevisiae, 2 different toxins of Pichia and one toxin of Candida were reco...
journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00410734
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-002-0444-0
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-018-1503-5
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journal_title:Archives of microbiology
pub_type: 杂志文章
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/s00203-016-1191-y
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journal_title:Archives of microbiology
pub_type: 杂志文章
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journal_title:Archives of microbiology
pub_type: 杂志文章
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journal_title:Archives of microbiology
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00446657
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journal_title:Archives of microbiology
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journal_title:Archives of microbiology
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journal_title:Archives of microbiology
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journal_title:Archives of microbiology
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更新日期:2017-12-01 00:00:00
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journal_title:Archives of microbiology
pub_type: 杂志文章
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更新日期:2003-04-01 00:00:00
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journal_title:Archives of microbiology
pub_type: 杂志文章
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更新日期:2021-01-01 00:00:00
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00428592
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:10.1007/BF00276476
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journal_title:Archives of microbiology
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journal_title:Archives of microbiology
pub_type: 杂志文章
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journal_title:Archives of microbiology
pub_type: 杂志文章
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更新日期:2020-11-04 00:00:00
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journal_title:Archives of microbiology
pub_type: 杂志文章
doi:
更新日期:1995-12-01 00:00:00
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journal_title:Archives of microbiology
pub_type: 杂志文章
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更新日期:2020-10-19 00:00:00