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Escherichia coli BA002, the ldhA and pflB deletion strain, cannot utilize glucose in nutrient-rich or minimal media anaerobically. Co-expression of heterologous pyruvate carboxylase and nicotinic acid phosphoribosyltransferase in BA002 resulted in a significant increase in cell mass and succinic acid production. Nevertheless, the resultant strain, BA016, still could not grow in a defined medium without...
This study demonstrates differences in ATP levels between attached and planktonic cells of Acidithiobacillus ferrooxidans growing with elemental sulfur. A small fraction of 3.7–14.4% of the bacterial cells was attached to the sulfur particles. The highest cell attachment of 14.4% was at the end of the lag phase, decreasing to 3.7% into the latter part of the active growth phase. Therefore, attached...
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