Isolation, Purification, and Chemical Characterization of the Dihydroxamate-Type Siderophore, "Schizokinen," Produced by Rhizobium leguminosarum IARI 917.
Year: 2005
Type: article
Abstract: Iron is essential to the majority of microorganisms; it is an important cofactor in many cellular processes and enzymes. However in an aerobic environment and at biological pH, iron is primarily found as insoluble oxyhydroxides and is unavailable to microorganisms. Many bacteria have the ability to produce siderophores, low molecular weight compounds that have a high affinity for Fe3+. Siderophores are part of a multi-component system that actively transports the iron-siderophore complex into the cytoplasm. Rhizobia are characterized by their ability to form symbiotic relationships with leguminous plants, where they can fix nitrogen for the host plant and the plant provides the bacteria with nutrients. Under iron-limiting conditions, Rhizobia are known to produce siderophores. Rhizobium leguminosarum IARI 917 produces one dihydroxamate-type siderophore. This siderophore has been purified and chemically characterized. Results indicate that this strain is producing schizokinen, which has not been described in a member of the Rhizobia family.
Author: Erin P. Storey
Institution: East Tennessee State University
Language: English
Subfield: Genetics
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W81914230