Repair of U.V. damages in Bacillus subtilis cultures competent for transformation: difference between competent and non-competent fractions.
AUTOR(ES)
Sgroi, G
RESUMO
The repair of U.V. damages to DNA in B. subtilis cultures competent for genetic transformation has been studied. The comparison of survival curves for competent and non competent fractions shows that: i) excision repair is more effective in competent than in non competent bacteria; ii) recombination repair is more effective in non competent than in competent bacteria. These facts support the hypothesis that metabolic conditions and, very likely, DNA replication play a role in the regulation of the efficiency of the two different mechanisms of repair.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=343524Documentos Relacionados
- Protein Difference Between Competent and Noncompetent Cultures of a Group H Streptococcus
- Different nuclease activities in competent and noncompetent Bacillus subtilis.
- Genetic Analysis of Repair of Ultraviolet Damage by Competent and Noncompetent Cells of Bacillus subtilis
- Interactions between exogenous deoxyribonucleic acid and membrane vesicles isolated from competent and noncompetent Bacillus subtilis.
- Evolution of Natural Transformation: Testing the DNA Repair Hypothesis in Bacillus Subtilis and Haemophilus Influenzae
