need information on agrobacterium tumefaciens
Charles S Buer
buer at WPI.EDU
Thu Feb 8 11:18:45 EST 1996
Agrobacterium tumefaciens is a soil borne bacterium. This microorganism
is nature`s answer to genetic engineering, and has been accomplishing the
feat for many years. The bacterium harbors a Ti plasmid which transfers
a section of DNA called T-DNA to the host plant, into its nuclear
genome. The infected cell then begins producing auxins and cytokinins
causing a tumoric growth. Since the bacterium is soil-borne, the tumor
usually forms at the plant crown, hence the name crown gall. This
bacterium has no function whatsoever with nitrogen fixation, which is
accomplished by Rhizobium spp. and others.
Dept. of Biology/Biology
Worcester Polytechnic Institute
Worcester, MA 0160
On Thu, 8 Feb 1996, JMdS.96 wrote:
> The person who wrote this "Need help !" thing, is probably out
> of primary school ... and doesn't know that the microorganism in
> question is actually benefic to the plant !
> Agrobacterium tumefaciens, produces nodules on plant roots, and
> may be very useful in capturing atmospheric Nitrogen !
> Or am I worng ?
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