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J Microbiol Methods. 1999 Feb;35(1):85-92.

Bi-functional gfp- and gusA-containing mini-Tn5 transposon derivatives for combined gene expression and bacterial localization studies.

Author information

  • 1F.A. Janssens Laboratory of Genetics, K.U.Leuven, Heverlee, Belgium.

Abstract

The gfp gene, encoding the green fluorescent protein, was combined with the gusA gene, coding for the beta-glucuronidase enzyme, in mini-Tn5 transposon derivatives for use in Gram-negative bacteria. These mini-Tn5 elements allow simultaneously monitoring of gene expression and localization of the marked bacteria. Introduction of the resultant mini-Tn5 transposons into Rhizobium etli, Azospirillum brasilense and Pseudomonas stutzeri allowed us to visualise the interaction of these bacteria with their host plant. The dual-marker mini-Tn5 transposons constitute a powerful new tool for studying gene expression and ecology of bacteria in the environment and during the interaction with plants.

PMID:
10076635
[PubMed - indexed for MEDLINE]
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