ISSN:
1432-0991
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Abstract We previously observed that whenAzotobacter vinelandii was transformed by different broad-host-range plasmids, normal cellular functions such as growth and siderophore production are impaired. In the present work, whenA. vinelandii was transformed with the low copy number plasmid pRK290, the extent of this metabolic impairment was lessened, as evidenced by increased siderophore production and moderate levels of growth on medium that lacks added iron. It is concluded that the severity of the plasmid-induced metabolic load reflects the relative level of expression of plasmid-encoded proteins.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01568932