Article
Expression of glutamine synthetase genes in roots and nodules of Phaseolus vulgaris following changes in the ammonium supply and infection with various Rhizobium mutants.
Plant molecular biology - 1 Apr 1990
Cock J M, Mould R M, Bennett M J, Cullimore J V
Abstract excerpt
In this paper we have examined whether the four glutamine synthetase (gln) genes, expressed in roots and nodules of Phaseolus vulgaris are substrate-inducible by ammonium. Manipulation of the ammonium pool in roots, through addition and removal of exogenous ammonium, did not elicit any changes in the abundances of the four mRNAs thus suggesting that the gln genes in roots of this legume are neither...
Topics
- Ammonia
- Fabaceae
- Gene Expression
- Genes, Bacterial
- Glutamate-Ammonia Ligase
- Mutation
- Nitrogen Fixation
- Plants
- Plants, Medicinal
- RNA, Messenger
- Rhizobium