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R.S. Jadhav, Anjana Desai; Role of siderophore in iron uptake in cowpea Rhizobium GN1 (peanut isolate): Possible involvement of iron repressible outer membrane proteins, FEMS Microbiology Letters, Volume 115, Issue 2-3, 1 January 1994, Pages 185–189, https://doi.org/10.1111/j.1574-6968.1994.tb06635.x
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Abstract
Siderophore produced by cowpea Rhizobium GN1 (Peanut isolate) was shown to be involved in iron uptake by this organism. Siderophore enhanced iron uptake in iron-starved cells. SDS-PAGE analysis of the outer membrane proteins showed two iron repressible outer membrane proteins with approximate molecular mass of 80 kDa and 76 kDa. A siderophore non-producing mutant, which was unable to grow on a medium containing synthetic iron chelators unless and until iron was added exogenously in the medium, could use siderophore of the wild-type for iron uptake indicating that the receptor for Fe-siderophore complex was intact in the mutant.
