Abstract
There is a fundamental gap in our understanding of how horizontal gene transfer contributes to the enormous range of genetic variations that are observed among bacteria. Our model organism is Vibrio cholerae, the causative agent of cholera. V. cholerae enters a natural competence state for the uptake of DNA in response to environmental signals. Our objective is to better understand the regulatory circuits that drive competence in this organism and the mechanistic aspects of the DNA transfer and uptake process.
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Lipp EK, Huq A, Colwell RR (2002) Effects of global climate on infectious disease: the cholera model. Clin Microbiol Rev 15:757–770
Meibom KL, Blokesch M, Dolganov NA et al. (2005) Chitin induces natural competence in Vibrio cholerae. Science 310:1824–1827
Seitz P, Blokesch M (2013) Cues and regulatory pathways involved in natural competence and transformation in pathogenic and environmental Gram-negative bacteria. FEMS Microbiol Rev 37:336–363
Ng WL, Bassler BL (2009) Bacterial quorum-sensing network architectures. Annu Rev Genet 43:197–222
Suckow G, Seitz P, Blokesch M (2011) Quorum sensing contributes to natural transformation of Vibrio cholerae in a speciesspecific manner. J Bacteriol 193:4914–4924
Lo Scrudato M, Blokesch M (2012) The regulatory network of natural competence and transformation of Vibrio cholerae. PLoS Genet 8:e1002778
Lo Scrudato M, Blokesch M (2013) A transcriptional regulator linking quorum sensing and chitin induction to render Vibrio cholerae naturally transformable. Nucleic Acids Res 41:3644–3658
Seitz P, Blokesch M (2013) DNA-uptake machinery of naturally competent Vibrio cholerae. Proc Natl Acad Sci USA 110:17987–17992
Seitz P, Blokesch M (2014) DNA transport across the outer and inner membranes of naturally transformable Vibrio cholerae is spatially but not temporally coupled. mBio 5:e01409–01414
Seitz P, Pezeshgi Modarres H, Borgeaud S et al. (2014) ComEA Is essential for the transfer of external DNA into the periplasm in naturally transformable Vibrio cholerae cells. PLoS Genet 10:e1004066
Borgeaud S, Metzger LC, Scrignari T et al. (2015) The type VI secretion system of Vibrio cholerae fosters horizontal gene transfer. Science 347:63–67
Ho BT, Dong TG, Mekalanos JJ (2014) A view to a kill: the bacterial type VI secretion system. Cell Host Microbe 15:9–21
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Melanie Blokesch 1995–2000 Biologiestudium an der LMU München. 2000–2004 Promotion unter der Leitung von Prof. Dr. A. Böck am Department Biology I der LMU München. 2005–2009 Postdoc an der Stanford University, CA, USA. Seit 2009 Tenure-track Assistant Professor an der Eidgenössischen Technischen Hochschule Lausanne (EPFL), Schweiz.
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Blokesch, M. Leben und sterben lassen – horizontaler Gentransfer in Vibrio cholerae . Biospektrum 21, 273–276 (2015). https://doi.org/10.1007/s12268-015-0572-0
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DOI: https://doi.org/10.1007/s12268-015-0572-0