Abstract:
:Cadmium (Cd) and zinc (Zn) are environmental pollutants affecting both soil and water. The toxicity resulting from the exposure of Xanthomonas campestris, a soil bacterium and plant pathogen, to these metals was investigated. Pretreatment of X. campestris with sub-lethal concentrations of Cd induced adaptive protection against subsequent exposure to lethal doses of Cd. Moreover, Cd-induced cells also showed cross-resistance to lethal concentrations of Zn. These induced protections required newly synthesized proteins. Unexpectedly, Zn-induced cells did not exhibit adaptive protection against lethal concentrations of Zn or Cd. These data suggested that the increased resistance to Cd and Zn killing probably involved other protective mechanisms in addition to ion efflux.
journal_name
Curr Microbioljournal_title
Current microbiologyauthors
Banjerdkij P,Vattanaviboon P,Mongkolsuk Sdoi
10.1007/s00284-003-4025-5keywords:
subject
Has Abstractpub_date
2003-09-01 00:00:00pages
260-2issue
3eissn
0343-8651issn
1432-0991journal_volume
47pub_type
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