PMID: 9438358Jan 1, 1997Paper

The role of thiamine in Yersinia kristensenii resistance to antibiotics and heavy metals

Folia Microbiologica
H Hustavová, D Havraneková

Abstract

The resistance to divalent metal ions, antibiotics and H2O2 was investigated in Yersinia kristensenii strains 13, 15, 18 by performing subcultivations with CdSO4 (20 and 100 mg/L) in nutrient agar (NA) and M9 medium with thiamine. Metal resistance of all three strains in NA was the same and decreased in the following sequence: Ni > Zn = Co > Cd. The chloramphenicol (Cmp) resistance ranged between 32 and 256 mg/L and the H2O2 sensitivity was very low or even zero. In the presence of thiamine the metal resistance sequence changed to Zn = Cd > Ni, Co, Ni and Co tolerance being 10-20 mg/L. Cmp resistance of all strains increased to 256 mg/L and H2O2 sensitivity also rose. In Cd-treated cultures, the ratio of glucose to thiamine in culture medium affected Cd resistance. At normal content of glucose and thiamine (5 g/L and 5 mg/L), Cd resistance markedly decreased coincident with thiamine exhaustion in these slowly-growing cultures. The Cmp resistance decreased to 16 mg/L, Ni and Co intolerance and H2O2 hypersensitivity appeared. At lowered glucose or thiamine levels (5 g/L and 2.5 mg/L or 2.5 g/L and 5 mg/L) a marginal decrease of Cd resistance took place in response to limited glucose uptake. Low thiamine or low-glucose cultures we...Continue Reading

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Citations

May 16, 2012·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·José Sebastián Dávila CostaMaría Julia Amoroso
Feb 20, 2014·Advanced Drug Delivery Reviews·Meng-Hua XiongJun Wang
Jul 9, 2005·Advances in Applied Microbiology·Katharine Kierek-Pearson, Ece Karatan
Sep 3, 1999·Applied and Environmental Microbiology·E G RikhvanovV K Voinikov

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