Journal
CANADIAN JOURNAL OF MICROBIOLOGY
Volume 54, Issue 4, Pages 241-247Publisher
NATL RESEARCH COUNCIL CANADA-N R C RESEARCH PRESS
DOI: 10.1139/W08-005
Keywords
Agrobacterium tumefaciens; attachment; virulence; root binding; att mutants; pAT
Ask authors/readers for more resources
The cryptic plasmid (pAT) of Agrobacterium tumefaciens was not required for virulence or attachment to plant Surfaces. However, mutations in the attC and attG genes located on pAT caused the bacteria to become avirulent and non-attaching on tomato, carrot, and Bryophyllum daigremontiana. This was the case whether the mutation was in the copy of the genes located on pAT or whether it was carried in a second copy of the attA-G operon located on a plasmid in cells that contained a wild-type copy of pAT. Thus attC and attG mutations are dominant negative mutations. The mechanism by which these mutations block attachment and virulence is unknown.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available