Transformation of Acinetobacter sp. Strain BD413 by Transgenic Sugar Beet DNA

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Transformation of Acinetobacter sp. strain BD413 by transgenic sugar beet DNA.

The ability of Acinetobacter sp. strain BD413(pFG4 delta nptII) to take up and integrate transgenic plant DNA based on homologous recombination was studied under optimized laboratory conditions. Restoration of nptII, resulting in kanamycin-resistant transformants, was observed with plasmid DNA, plant DNA, and homogenates carrying the gene nptII. Molecular analysis showed that some transformants...

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A novel competence gene, comP, is essential for natural transformation of Acinetobacter sp. strain BD413.

Acinetobacter sp. strain BD413 (= ATCC 33305), a nutritionally versatile bacterium, has an extremely efficient natural transformation system. Here we describe the generation of eight transformation-affected mutants of Acinetobacter sp. strain BD413 by insertional mutagenesis. These mutants were found by Southern blot analysis and complementation studies to result from single nptII marker insert...

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Natural transformation of Acinetobacter sp. strain BD413 with cell lysates of Acinetobacter sp., Pseudomonas fluorescens, and Burkholderia cepacia in soil microcosms.

To elucidate the biological significance of dead bacterial cells in soil to the intra- and interspecies transfer of gene fragments by natural transformation, we have exposed the kanamycin-sensitive recipient Acinetobacter sp. strain BD413(pFG4) to lysates of the kanamycin-resistant donor bacteria Acinetobacter spp., Pseudomonas fluorescens, and Burkholderia cepacia. Detection of gene transfer w...

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The thin pili of Acinetobacter sp. strain BD413 mediate adhesion to biotic and abiotic surfaces.

Two structurally different appendages, thin and thick pili, are found in members of the genus Acinetobacter. The presence of pilus structures correlates with different phenotypes, such as adherence to surfaces, a trait not only observed in pathogenic Acinetobacter species, as well as motility. However, their distinct individual roles were unknown. To characterize the role of different pili in t...

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Identification and characterization of a novel competence gene, comC, required for DNA binding and uptake in Acinetobacter sp. strain BD413.

A gene (comC) essential for natural transformation was identified in Acinetobacter sp. strain BD413. ComC has a typical leader sequence and is similar to different type IV pilus assembly factors. A comC mutant (T308) is not able to bind or take up DNA but exhibits a piliation phenotype indistinguishable from the transformation wild type as revealed by electron microscopy.

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ژورنال

عنوان ژورنال: Applied and Environmental Microbiology

سال: 1998

ISSN: 0099-2240,1098-5336

DOI: 10.1128/aem.64.4.1550-1554.1998