IUBio Biosequences .. Software .. Molbio soft .. Network News .. FTP


Nestor Fabian Galvis Serrano nfgalvis at uis.edu.co
Tue Apr 28 10:59:48 EST 1998

I have transformed leaf disks of N. tabacum with A.
tumefaciens At650 strain harboring plasmid pSGH which contains the
hygromicin resistance gene (hph) under the control of 35S promoter.
Tranformants were selected on 25 mg of hygromicin per liter.
However, the controls (untraformed leaves) formed callus. Also, A.
tumefaciens grows alone on this media culture.
Anyone knows about some endogenous resistance of plants to hygromicin?
What is the best concentration for hygromicin selection for A.
tumefaciens and N. tabacum?

Thanks a lot in advance!

Fabian Galvis
Student of biology
UIS, Bucaramanga Col.

More information about the Arab-gen mailing list

Send comments to us at biosci-help [At] net.bio.net