DNA uptake in competent Streptococcus pneumoniae requires ATP and is regulated by cytoplasmic pH
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منابع مشابه
Competence in Streptococcus pneumoniae Is Regulated by the Rate of Ribosomal Decoding Errors
UNLABELLED Competence for genetic transformation in Streptococcus pneumoniae develops in response to accumulation of a secreted peptide pheromone and was one of the initial examples of bacterial quorum sensing. Activation of this signaling system induces not only expression of the proteins required for transformation but also the production of cellular chaperones and proteases. We have shown he...
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The growth of Streptococcus faecalis at high pH was significantly stimulated by carbonate. In the absence of added carbonate the cells were unable to grow at a pH above 9.5, but in media containing 50 mM HCO3- they grew even at pH 10.5. Both rate and yield of growth at pH 9.5 were significantly stimulated by as little as 5 mM carbonate. The cytoplasmic pH in growing cells was maintained at abou...
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Transport of DNA across bacterial membranes involves complex DNA uptake systems. In Gram-positive bacteria, the DNA uptake machinery shares fundamental similarities with type IV pili and type II secretion systems. Although dedicated pilus structures, such as type IV pili in Gram-negative bacteria, are necessary for efficient DNA uptake, the role of similar structures in Gram-positive bacteria i...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1989
ISSN: 0378-1097
DOI: 10.1016/0378-1097(89)90376-5