ArticleCurrent microbiology2013
Suicide plasmid-dependent IS1-element untargeted integration into Aeromonas veronii bv. sobria generates brown pigment-producing and spontaneous pelleting mutant.
Article in Current microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 11 citations in OpenAlex.
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1 author at 1 institution in 1 country.
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Abstract
Foodborne Gram-negative pathogens belonging to the genus Aeromonas are variable in harboring insertion sequence (IS) elements that play an important role in the generation of dysfunctional relatives of known genes. Using suicide plasmids carrying an IS1-element, untargeted integration is a common problem during experimental trials to generate specific mutations by homologous recombination. In this work, different strains of Aeromonas veronii bv. sobria (AeG1 and ATCC 9071T), A. hydrophila ATCC 19570, and A. sobria ATCC 43979T are examined for acquisition of IS1-element from pYAK1 suicide plasmid. It was found that untargeted integration of IS1-element is encountered only in ATCC 9071T strain. Such untargeted integration generates a novel brown pigment-producing and spontaneous pelleting (BP(+)SP(+)) mutant. Furthermore, BP(+)SP(+) mutant strain secretes significantly higher quantity of PilF homologous protein than the wild-type strain and displays an enhanced protein tyrosine phosphorylation activity. Thus, current work shows that Aeromonas spp. strains are variable in their susceptibility for suicide plasmid-dependent IS1-element untargeted integration as well as the susceptible strain is changed to mimic pigment-producing and spontaneous pelleting strains that are naturally occurring among heterogeneous group of foodborne aeromonads.
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