gram-negative bacteria

Gram-negative bacteria

Escherichia (5)
Pseudomonadaceae (1)
Rhizobiaceae (10)
Rickettsieae (1)
Salmonella (1)

Synopsis: Microorganisms: Bacteria: Gram-negative bacteria:

impactlab_2011 02662.txt

The need for better traceability became clear after a national outbreak of salmonella illness in spring 2008 that sickened more than 1, 300 people across the country.

impactlab_2012 00588.txt

and turn a color#orange, say, for E coli. Then you could knock it out with a stronger disinfectant. 27.

Nature 01967.txt

caused by the bacterium Coxiella burnetii, can trigger abortions in goats and sheep and cause flu-like symptoms and sometimes pneumonia in humans.

Nature 02517.txt

The bacterium Agrobacterium tumefaciens which can cause tumours on plants shuttled foreign genes into plant genomes.

And Agrobacterium is not essential either; foreign genes can be fired into plant cells on metal particles shot from a'gene gun'.

Nevertheless, Agrobacterium is still industry's tool of choice for shuttling in foreign genes, says Johan Botterman, head of product research at Bayer Bioscience in Ghent, Belgium.

But Agrobacterium isn't suitable for some new techniques. Many companies are developing'mini-chromosomes'that can function in a plant cell without needing to be integrated into the plant's genome.

unlike the near-random scattering generated by Agrobacterium. In 2009 researchers at Dow Agrosciences in Indianapolis, Indiana,

Nature 04741.txt

At that time, GM CROPS were engineered nearly always using Agrobacterium tumefaciens a bacterial pest that can insert DNA into plant genomes.

because the lawn-and-garden company developing it did not use Agrobacterium or any other plant-pest DNA to engineer the grass.

He notes that Agrobacterium inserts genes more efficiently than the gene-gun method. Although zinc-fingers are appealing for their specificity

This was used because he Agrobacterium to insert the genes it did not matter to regulators that no trace of Agrobacterium DNA remained in his plants.

popsci_2013 01087.txt

and his team had reconfigured a Hewlett-packard Deskjet 550c to print with E coli bacteria. Then they graduated to larger mammalian cells farmed from Chinese hamsters and lab rats.

ScienceDaily_2013 16940.txt

and his team managed to remove the ability of the Pseudomonas aeruginosa microorganism to resist the antibiotic medication tetracycline by limiting its access to food and oxygen.

and E coli which carries resistant genes directly from animals through their feces into the environment.

and/or oxygen through successive generations they found that in the absence of tetracycline both microbes dumped the resistance plasmid though not entirely in the case of E coli.

WS_1452 01394.txt

They engineered E coli bacteria to contain sets of genes with growth hormone and also with malate, a root detector.

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