Development of a biofilm production-deficient Escherichia coli strain as a host for biotechnological applications

Article Abstract:

Escherichia coli K-12 strain MG1655 is genetically engineered to eliminate biofilm formation by the deletion of genes involved in the biosynthesis and assembly of curli and colanic acid and type I pilus biosynthesis. The results have indicated that the newly developed biofilm production-deficient strain of E. coli exhibits many vital properties that substantially increase its utility in the biotechnology area.

Escherichia coli, Microbial mats, Microbial genetics

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Interspecific transfer of bacterial endosymbionts between tsetse fly species: Infection establishment and effect on host fitness

Article Abstract:

A study determined that Sodalis isolates from several tsetse fly species are virtually identical based on a phylogenetic analysis of their ftsZ gene sequences. Quantitative PCR analysis showed that transinfected flies maintained their Sodalis populations at densities comparable to those in flies harboring native symbionts.

Physiological aspects, Phylogeny, Endocarditis, Bacterial, Bacterial endocarditis, Quantitative trait loci

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