| Autor: |
Flechard, Maud, Fontenelle, Catherine, Trautwetter, Annie, Ermel, Gwennola, Blanco, Carlos |
| Předmět: |
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| Zdroj: |
FEMS Microbiology Letters; Jan2009, Vol. 290 Issue 1, p25-31, 7p, 1 Black and White Photograph, 1 Chart, 4 Graphs |
| Abstrakt: |
RpoE2 is an extracytoplasmic σ factor produced by Sinorhizobium meliloti during stationary growth phase. Its inactivation affected the synthesis of the superoxide dismutase, SodC, and catalase, KatC. The absence of SodC within the cell did not result in an increased sensitivity to extracellular superoxides. In contrast, the absence of KatC affected the resistance of S. meliloti to H2O2 during the stationary growth phase. A katC strain behaved as an rpoE2 strain during an H2O2 challenge, suggesting that the H2O2 sensitivity of the rpoE2 strain resulted only from the lack of KatC in this strain. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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